Tiêu chuẩn iso 10360 10 2016

3.2 interferometric me surement mode IFM mo e measur ment method that uses a lase displac ment int erfe omet er int egrat ed in a las er tracke 3.1 t o det ermine dis anc rang e t o a ta

Geometrical pr oduct specifications

Part 10:

S éc i fi cati on g ométri que des produi ts (G PS) — Es s ai s de

réc pti on et de véri fi cati on p ri odi que des s ys tèmes à mes ur r

tri di mens i on els (SMT)—

Partie 10: L ser de p ursuite p ur me sur r le s dista ce s de p int à

p int

Fir t edition

2 16-04-1

COPYRIGHT PROTECTED DOCUMENT

© ISO 2016, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of

F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 2

4 Symbols 5

5 Rated o eratin c onditio s 6

5.1 Envir onmental con itions 6

5.2 Operating con itions 6

6 Ac c eptanc e tests and rever ification tests 7

6.1 General 7

6.2 Pr obing siz an form e r ors 7

6.2.1 Principle 7

6.2.2 Measuring eq ipment 8

6.2.3 Pr oc d re 8

6.2.4 De iv tion oftes r esult 1

6.3 L cation e rors ( wo-fac tests) 1

6.3.1 Principle 1

6.3.2 Measuring eq ipment 1

6.3.3 Pr oc d re 1

6.3.4 De iv tion oftes r esult 1

6.4 Leng th e rors 1

6.4.1 General 1

6.4.2 Principle 1

6.4.3 Measuring eq ipment 1

6.4.4 Pr oc d re 1

6.4.5 De iv tion oftes r esult 2

7 Complanc e w ith specificatio 20 7.1 A cc ptanc tests 2

7.2 Reve ification tests 2

8 A pplcatio s 21 8.1 A cc ptanc tes 2

8.2 Reve ification tes 2

8.3 Inte im che k 2

9 Indicatio in product documentatio and data she ts 22

A nne x A (informative)F rms 24

A nne x B (normative) Calbrated test leng ths 27

A nne x C (normative) Thermal c ompensation of wor kpiec es 29

A nne x D (informative) Achieving the alter nati ve me sur ing v lume 30

A nne x E (informative) Specification of MPEs 32

A nne x F (informative) Interim testing 35

A nne x G (normative) Testing of a stylus and r etror eflector c ombinatio (SRC) 36

A nne x H (normative) Testing of an o tical distanc e sensor and retroreflector

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of

any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT), se thefolowing URL:F or word — Sup lementary information

The committ ee r sp nsible for this document is ISO/TC 2 3, Dimens io al a d geometric al produc t

s pec ific atio s a d ve ific atio

ISO 1 3 0 consis s of the folowing p rt , u de the g ene al title G eometric al produc t s pec ific atio s

(GPS) — Ac c epta c e a d r ve ific atio tes ts fr c oordin te meas urin machines (CMM):

— Part 1: Voc ab lar y

— Part 2 : CMMs us ed fr meas urin lnear dimens io s

— Part 3 : CMMs w ith the ax i s o a rotar y ta le as the furth ax i s

— Part 4: CMMs us ed in s c an in meas urin mode

— Part 5: CMMs us in s in le a d multiple s t ylus c ontac tin pro in sys tems

— Part 6 : Es timation o e rors in c omp tin o G aus s ia as s oc iated featur s

— Part 7: CMMs eq ip ed w ith ima in pro in sys tems

ISO 1 3 0 also consis s of the fol owing part , u de the g ene al title G eometric al produc t s pec ific atio s

(GPS) — Ac c epta c e a d r ve ific atio tes ts fr c oordin te meas urin sys tems (CMS):

— Part 8: CMMs w ith o tic al di s ta c e s ens ors

— Part 9: CMMs w ith multiple pro in sys tems

— Part 10: L ser tracke s fr meas urin p int-to-p int di s ta c es

The folowing p rt is un e pr paration:

This p rt of ISO 1 3 0 is a g eometrical prod ct pe ification (GPS)s an ard an ist o be r g rded as a

g ene al GPS s an ard ( e ISO 146 8) It influenc s l n F of the chains of s an ards on siz , dis anc ,

radius, angle, form, orientation, location, an run-out

The ISO/ GPS matrix model given in ISO 146 8 gives an o e view of the ISO/GPS sy st em of w hich this

document is a p rt The fun amental rules of ISO/GPS given in ISO 8 1 a ply t o this p rt of ISO 1 3 0

an thedefault de ision rules given in ISO 142 3-1a ply t o spe if ications made in ac ordanc with this

part of ISO 1 3 0, u les othe wise in icat ed

Mor detaied information on the r lation of this part of ISO 1 3 0 t o othe s an ards an the GPS

matrix model can be fou d in An ex I

The o je tive of thisp rt of ISO 1 3 0is t o pro ide a wel-defined t es ing proc d r for a) lase tracker

man factur rs t o spe ify pe formanc b ma imum pe mis ible e rors (MP s), and b) t o alow t es ing

of these spe if ications using calbrat ed, trac a le t es lengths, t es sphe es, and flat The benef it of

these t es s ar that the measur d r sult has a dir ct trac a i ity t o the u it of length, the metr , an

that it gives information on how the lase tracker wi pe form on simiar length measur ment

This p rt of ISO 1 3 0is dis tinct from that of ISO 1 3 0- 2, w hich is for co rdinat e measuring machines

(CMMs) eq ip ed with contact pro ing syst ems, in that the orientation of the t es lengths r fle t the

dife ent ins rument g eometry an e ror sour es within the ins rument

Geomet rical product specificat ions (GPS) — A ccept ance

Part 10:

This p rt of ISO 1 3 0 spe ifies the ac eptanc t es s for ve ifying the pe formanc of a lase tracker

b measuring calbrat ed t es lengths, t es sphe es an flat ac ording t o the spe ifications of the

man factur r It also spe ifies the r ve ification t es s that ena le the use t o pe iodicaly r ve ify the

pe formanc of the lase tracker The ac eptanc an r ve ification t es s given in this p rt of ISO 1 3 0

ar a plca le only t o lase tracke s uti zing a r tro-r fle t or as a pro ing sy st em Lase tracke s

that use int erfe ometry (IFM), a solut e dis anc met er (ADM) measur ment, or b th can be ve ified

using this p rt of ISO 1 3 0 This p rt of ISO 1 3 0 can also be used t o spe ify an verify the r lev nt

pe formanc t es s of othe sphe ical co rdinat e measur ment sy st ems that use co pe ative targ et ,

such as “lase radar” sy st ems

NOTE Systems, such as laser radar sy stems, which do not track the targ t, wil not b t ested for pro ing

performance

This p rt of ISO 1 3 0 does not ex lcitly a ply t o measuring sy st ems that do not use a sphe ical

co rdinat e sy st em ( i.e two orthog onal rotary ax es ha ing a common int erse tion p int with a third

l near a is in the radial dir ction) Howeve , the p rties can a ply this p rt of ISO 1 3 0 t o such sy st ems

b mutual a r ement

This part of ISO 1 3 0 spe if ies

— pe formanc r q ir ment that can beas igned b the man factur r or the use of the lase tracke ,

— the man e of ex ecution of the ac eptanc an r ve ification t es s t o demons rat e the s at ed

r q ir ment ,

— rules for pro ing conformanc , an

— a plcations for w hich the ac eptanc an r ve if ication t es s can be used

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO 1 3 0-8:2 1 , G eometric al produc t s pec ific atio s (GPS) — Ac cepta c e a d r ve ific atio tes ts fr

c oordin te meas urin sys tems (CMS) — Part 8: CMMs w ith o tic al di s ta c e s ensors

ISO 1 3 0-9:2 1 , G eometric al produc t s pec ific atio s (GPS) — Acc epta c e a d r ve ific atio tes ts fr

c oordin te meas urin sys tems (CMS) — Part 9: CMMs w ith multiple pro in sys tems

3 Terms and definitions

F or the purposes of this document, the fol owing t erms and def initions a ply

3.1

laser tracker

co rdinat e measuring sy st em in w hich a co pe ative targ et is folowed with a lase beam an it

location det ermined in t erms of a dis anc (rang e) and two angles

Not e 1t o entry: T e two angles are refer ed to as azimuth, θ (rotation a out a vertical a is – the stan ing a is of

the laser tracker)an elevation, φ (angle a ove a horizontal plane – perpen icular t o the stan ing a is)

3.2

interferometric me surement mode

IFM mo e

measur ment method that uses a lase displac ment int erfe omet er int egrat ed in a las er tracke (3.1)

t o det ermine dis anc (rang e) t o a targ et

Not e 1 to entry: Displacement interferometer can only det ermine diferences in distance, an therefore req ire

a reference distance (e.g home position)

3.3

absolute distance me surement mo e

measur ment method that uses time of flght ins rumentation int egrat ed in a las er tracke (3.1) t o

det ermine the dis anc (rang e)t o a targ et

Not e 1 t o entry: Time of flight instrumentation may inclu e a variety of mod lation methods to calculat e the

distance to the targ t

3.4

retroreflector

pas iv e devic designed to r fle t lght b ck paral el to the incident dir ction ov er a range of

incident angles

Not e 1t o entry: T pical retroreflector are the cat’ s-eye, the cub corner, an sp eres of special material

Not e 2t o entry: R etroreflect or are co perative targ ts

Not e 3 to entry: For certain sy stems, e.g laser radar, the retroreflect or might b a co perative targ et such as a

polished sp ere

3.5

sphericaly mo nted retroreflector

SMR

r tror flec tor (3.4) that is mou t ed in a sphe ical housing

Not e 1 t o entry: In the case of an open-air cub corner, the verte is ty ical y adjust ed t o b coincident with the

Note 2t o entry: S e Figure 1.

D

CA

F stylus orientation u it vector

G normalpr obing dir ection vector

L stylus tip ofset

Figure 1 — Representation of SMR v s SRC

3 7

optical distance sensor and retroreflector combination

ODR

pro ing sy st em that det ermines the measur ment point uti zing an o tical dis anc sensor t o measur

the workpie e, a r tror flec tor (3.4) t o det ermine the b se location of the o tical dis anc sensor, an

othe means t o f in theorientation of the o tical dis anc sensor

Bi:L:L) point-t o-p int

dis anc measur ment of a calbrat ed t es length using a lase tracke with a s y lus tip ofset ofL

Note 1 to entry: E

Uni:0:LT

an E

Bi:0:LT(used freq ently in this part of ISO 1 360) cor espon to the common case

normal CTE material

mat erial with a coefficient of the mal ex ansion (CTE) betwe n 8 × 1

e ror of in ication within w hich the rang e of Gaus ian radial dis anc s can be det ermined b a leas

-sq ar s fit of 2 p int measur d b a laser tracke (3.1) on a sphe ical mat erial s an ard of siz

Not e 1t o entry: Only one le st-sq ares f it is performed, an e ch point is evaluated for its distance (radius) from

e ror of in ication of the diamet er of a sphe ical mat erial s andard of siz as det ermined b a leas

-sq ar s fit of 2 p int measur d with a las er tracke (3.1)

the dis anc , pe pen icular t o the beam p th, betwe n two measur ment of a s ationary r tror flec tor

(3.4), w he e the se on measur ment is taken with the las er tracke (3.1) azimuth a is at a pro imat ely

1 0°from the firs measur ment an the lase tracker elev tion angle is a pro imat ely thesame

Not e 1t o entry: T is combination of a is rotations is k own as a two f c e, or plu g a d r v rs e, t est

Note 2t o entry: T e laser tracker b se is f ix ed d ring this t est

rated operating co ditio

o e ating con ition that mus be fulfiled, ac ording t o spe ification, d ring measur ment in orde that

a measuring ins rument or measuring sy st em pe forms as designed

Note 1 to entry: Rated operating con itions g neral y specify intervals of values for a q antity b ing me sured

an for an influence q antity

Not e 2t o entry : W ithin this part of ISO 1 360, the t erm “as designed” in the definition me ns “as specified by MP s”

Not e 3 t o entry: When the rat ed operating con itions are not met in a test ac ording t o this part of ISO 1 360,

neither conformance nor non-conformance t o specif ications can b determined

[ SOURCE:ISO/IEC Guide 9 :2 0 , 4 9 — modif ied.]

F or the purposes of this p rt of ISO 1 3 0, the symb ls in Ta le 1 a ply

Table 1 — Symbols of specificatio quantities

Ma imum permis ible er or of location (from two face t ests)

Ac es ory sensor t es ing – SRC

Ma imum permis ible er or of orientation for SRC

Ac es ory sensor t es ing – ODR

Ma imum permis ible er or of flat orm me surement with O R ( 95 % of the points)

Multiple sensor t es ing

Ma imum permis ible multiple pro ing system location er or

NOTE 1 For the common case of length testing with an SMR, L wil b eq al t o 0 (e.g E

Bi:0:LT)

NOTE 2 T e specif ic combinations of sensor for the multiple pro ing system er or depen on the sensor

provided with the laser track er sy st em T e combination could b e plicitly captured in the symb l, such as P

Siz

Sp 2 2 :O S,SMR:MPS.L T

where the symb ls in icating sensor are listed alp a etical y

NOTE 3 In the Multiple S nsor Testing entries, n (in n 2 )is the n mb r of sensor b ing involved (n 2)

5 Rated operating conditions

5.1 Environmental c onditions

Limit for pe mis ible environmental conditions such as t empe atur con itions, air pr s ur , h midity,

an vibration at he sit e of usag e or t es ing that influenc the measur ment shal be spe ified b

— theman factur r, in the case of ac eptanc t es s, an

— theuse , in the case of r ve ification t es s

In b th cases, the use is fr e t o cho se the environmental con itions un e w hich the t es ing wi be

pe formed within the spe if ied lmit (F orm 1 in Annex A is the r commen ed method for spe ifying

these con itions)

If the use wishes t o ha e t es ing pe formed un e environmental con itions othe than the ambient

con itions of the t es sit e (e.g at an elev t ed or lower d t empe atur ), a r ement betwe n p rties

r g rding w ho bears the cos of environmental con itioning should be at ained

5.2 Operating conditions

The con itions r q ir d b the man factur r in orde t o me t the MP spe ification shal be spe if ied

(as given, e.g in a spe ification she t)

Table 1 (c ontin ed)

In ad ition, the lase tracker shal be o e at ed using the proc d r s given in the man factur r’ s

o e ating man al w hen con ucting the t es s given in Cla use 6 Spe ific ar as in the man factur r’s

man al t o be adhe ed t o ar , for ex mple

a) machine s art-up /warm-up cycles,

b) machine compensation proc d r s,

c) cleaning proc d r s for r tror fle t or an nes s,

d) SMR or SRCq al f ication,

e) location, ty e, an n mbe of environmental sensors ( i.e “ he weathe s ation” , an

f) location, ty e, n mbe of the mal workpie e sensors

6 Ac c eptanc e tests and reverification tests

In the folowing

— ac eptanc t es s ar ex ecut ed ac ording t o the man factur r’ s spe if ications an proc d r s that

ar in complanc with this part of ISO 1 3 0, an

— r ve if ication t es s ar ex ecut ed ac ording t o the use ’s spe if ications an the man factur r’ s

proc d r s

If spe if ications pe mit, the lase tracker ma be t est ed in an orientation othe than the normal upright,

ve tical orientation In eve y case, the azimuth an elev tion angles wi l be orient ed with r spe t t o the

lase tracker The position an orientation of the t es lengths with r spe t t o the lase tracke shal be

clearly def ined befor the t es s begin In g ene al, the t es lengths wi not rotat e with the lase tracke

Howeve , the locations for pro ing an two-fac t es s wi l maintain a f ix ed r lationship with r spe t

t o the lase tracke ’s s anding a is ( i.e they wi l rotat e with the lase tracker) F or ex mple, if the lase

tracker is mou t ed with it s an ing a is horizontal, the “a o e” an “below” dir ctions desc ibed in

Ta le 2 an Ta le 3 wi be paralel t o the s an ing a is

Whe e leas -sq ar s (Gaus ian) f it ing is used in the de iv tion of t es r sult , this shal be an

uncons rained f it t o the data, u les cons raint t o the f it ing ar ex lcitly s at ed

6.2 Probing size and form err or

6.2.1 Principle

The principle of this t es proc d r is t o measur the siz an form of a t es sphe e using 2 p int

pro ed with the SMR, SRC, or ODR This subclause gives the spe if ic t es ing proc d r for using an

SMR t o cole t he p int R efe t o An ex G or An ex H for ad itional information a out t es ing with the

SRC or ODR sensors, r spe tively A leas -sq ar s sphe e f it of the 2 p int is ex mined for the e rors

of in ication for form an siz This analy sis yields the form e ror, P

do not ap ly t o laser radar systems

NOTE 2 T ese are tests of the laser tracker syst em’ s a ility to locate in ivid al points in space These tests are

not inten ed to check an of the specif ications su plied by an SMR man facturer, although er or in the SMR wil

influence the t est results

NOTE 3 When performing this test with a sp erical y mou ted retroreflect or ( SMR),thre ty es of er or in

the SMR may influence the results of this test.If the sp ere, within which the retroreflect or is mou ted, is

out-of-rou d, this wil influence the test result Also, if the mir ored surfaces which comprise the retroreflector are not

mutualy ortho onal, or if their point of inter ection is not coincident with the sp ere centre, the test result wil

b afect ed

6.2.2 Me sur ing equipment

The mat erial s andard of siz , i.e the t es sphe e, shal ha e a nominal diamet er not les than 1 mm

an not gr at er than 5 mm The t es sphe e shal be calbrat ed for siz an form

NOT It may b dificult to mak e me surements on smal er test sp eres d e to interference with the

sp ere mou t

6.2.3 Proc edure

Mou t the t es sphe e so that a ful hemisphe e ma be pro ed When a sphe ical y mou t ed

r tror fle t or is used for pro ing, the t es sphe e sup ort should be orient ed awa from the lase

tracker F or an SRC, the sup ort should be locat ed awa from the normal pro ing dir ction

The t es sphe e should be mou t ed rigidly t o minimiz e rorsd e t o ben ing

NOTE 1 The normal pro ing direction for the SRC is along the sty lus shaf of the SRC

Measur an r cord 2 p int The p int shal be a pro imat ely evenly dis ribut ed o e at leas a

hemisphe e of the t es sphe e Their p sition shal be at the disc etion of the use an , if not spe ified,

the folowing pro ing p tt ern is r commen ed ( e Figur 2):

— one p int on the p le of the t es sphe e;

— four p int (eq aly spac d)2 ,5° below the pole;

— eight p int (eq aly sp c d) 45° below the p le an rotat ed 2 ,5° r lative t o the pr viousgroup;

— four p int (eq aly spac d)6 ,5° below the p le and rotat ed 2 ,5°r lative t o the pr vious group;

— eight p int (eq al y sp c d) 90° below the pole ( i.e on the eq at or) an rotat ed 2 ,5° r lative t o

thepr vious group

NOTE 2 Due t o the man al nature of point me surement with laser tracker , it is reco nized that the e act

points recommen ed might not b me sured

a

Pole – point on sp ere op osite the su port

Figure 2 — L cation of pro ing points

The r sult of these t es s ma be highly depen ent on the dis anc of the r tror fle t or from the lase

tracker, espe ialy for the SRC an ODR sensors The efor , the t es shal be pe formed at the r q ir d

dis anc s from the lase tracker, as indicat ed in Ta le 2

Table 2— Pro e testing locatio s

Dis anc from the lase tracker R equir d for these

a

Where a man fa turer’ s spe ific tions e plcitly s ate that an SRC or O R sensor only perorms at a dis anc gre ter

than 2 m f om the laser t a k er, the tes shal be perormed at he minimum s ated dis anc

NOTE 3 T e pro e testing locations wil have the same location an orientation relative to the laser tracker’ s

stan ing a is if the laser tracker is not oriented verticaly

6.2.4 Der i vatio of test results

6.2.4.1 Size error

Using al 2 measur ment , comput e the Gaus ian as ociat ed sphe e R ecord the diamet er of this

sphe e The signed dife enc of this (measur d) diamet er from the calbrat ed (r fe enc ) diamet er of

the t es sphe e, i.e D

MEAS– D

RE, is the pro ing siz e ror, P

Size.Sp 1 2 :SMR.L

(for an SMR)

6.2.4.2 F rm er r or

F or each of the 2 measur ment , calculat e the Ga us ian radial dis anc , R, as the dis anc from the

c ntr of the leas -sq ar s sphe e t o the measur ment p int R ecord the rang e of these v lues, i.e

The principle of this t es proc d r is t o det ect g eometric e rors of the lase tracker b measuring

the location of a s ationary r tror fle t or twic in dife ent lase tracker conf igurations These

conf igurations ar o tained b a) measuring in normal mode, then b) rotating the azimuth a is b

a pro imat ely 1 0° an mo ing the elev tion angle through the ve tical t o r acq ir the r tror fle t or

The a par nt dis anc , pe pen icular t o the lase beam, betwe n the two measur ment of the

r tror fle t or yields the t es r sult, L

ia.2 1:P&R:L

As these t es s can be pe formed q ickly, an wi l immediat ely r veal pro lems with the lase tracker

g eometry an it cor e tion, it is r commen ed that these t es s be pe formed f irs

6.3.2 Me sur ing equipment

Theeq ipment for this t es is a targ et nes that ismount ed rigidly at the p sitions r q ir d in Ta le 3

6.3.3 Proc edure

Mount the targ et nes so that the nes and it sup ort wi l not int erfe e with measur ment of the

r tror fle t or

Plac the SMR in the nes , an measur the location of the SMR using the two angles an the rang e

R otat e b th angular ax esof the lase tracke b the a pro riat e angles an r -acq ir the r tror fle t or

Measur this location of the r tror fle t or in the angles only, using the rang e v lue from the f irs

measur ment

Thetarg et nes should be mount ed rigidly t o minimiz u c rtainty in the measur ment

The r sult of these t es s ma be highly depen ent on the dis anc of the t es sphe e from the lase

tracker, an influenc d b the lase tracke ’s angular orientation The efor , these t es s shal be

pe formed at two dis anc s from the lase tracker an at thr e dife ent orientations, as in icat ed in

Ta le 3 The dis anc from the lase tracker is the horizontal dis anc betwe n the lase tracker an

the r tror fle t or p sition, an the orientation angle is the nominal azimuth angle of the lase tracker

w hen it is pointing at he r tror fle t or

Table 3— Two-face me surement positio s

Desc iption of

the r tror fle t or p sition

Azimuth angle(s)with

r spe t t o the lase tracke

in degr es

Two-face test, retroreflect or at le st 1m b low

the height of the laser tracker centre of rotation

0,1 0, 240

Two-face test, retroreflect or at height of the

laser tracker centre of rotation

0,1 0, 240

Two-face test, retroreflect or at le st 1m a ove

height of the laser tracker centre of rotation

0,1 0, 240

Two-face test, retroreflect or at le st 1m b low

height of the laser tracker centre of rotation

0,1 0, 240

Two-face test, retroreflect or at height of the

laser tracker centre of rotation

0,1 0, 240

Two-face test, retroreflect or at le st 1m a ove

height of the laser tracker centre of rotation

0,1 0, 240

a

The dis anc fom the laser t a k er should be within 10 % of the nominal dis anc , an a imuth an le within 5°

NOTE T e testing locations wil have the same location an orientation relative t o the laser tracker’ s

stan ing a is if the laser tracker is not oriented verticaly

6.3.4 Deri vatio of test results

Calculat e the location e ror r lating the two measur d locations This dis anc betwe n the two

locations is the location e ror, L

ia.2 1:P&R:L

If the two measur d locations cor esp n t o (θ

1, φ

1, R

1) an (θ

2, φ

2, R

2) in sphe ical co rdinat es, the

calculat ed location e ror r lating the two locations is calculat ed as

is used in the calculation of the location e ror, as this t es is not int en ed t o ca tur dife enc s in

the rang e v lues Ins rument using ADM rang e measur ment wi l r p rt the se on rang e, R

2, w hi e

ins rument using IFMrang e measur ment wi l not

NOTE 1 F or this document, the elevation angle φ is zero at the horizontal

NOTE 2 Although φ

1

an φ

2are ap ro imat ely eq al, the instrument may report them as signif icantly

diferent values (0,1 rad,an π – 0,1 rad) as they oc ur at diferent locations on the laser tracker’ sencoder

NOT 3 T e subs ript “Dia” in the symb l L

ia.2 1.P&R.L T

refer t o the diamet er of the minimum cir ums ribing

sp ere containing the two reported locations For two locations, this diameter is the distance b tween the

locations

6.4 Leng th error s

6.4.1 General

The t es s of length measur ment e rors ar comprised of 1 5 length measur ment Of these, 41 t es

length positions ar man at ory an desc ibed in Ta le 4 The use is fr e t o cho se the r maining 64

t es length positions To as is the use in cho sing these p sitions, two non-man at ory alt ernatives

ar pro ided

NOTE Laser tracker usa e may guide the user’ s choice as wel (e.g if the laser tracker is specif ied over a

prismatic volume, alternative 2des rib d in 6.4.4.3 may b ap ropriat e)

One or mor formulae shal be spe if ied b the man factur r so that the MP can be u iq ely

det ermined for any p int-t o-p int measur ment in the measuring v lume If mor than one formula is

spe ified, a rule shal be u ambiguously s at ed so that it is alway s clear w hich formula is t o be used The

form of the formulae is the choic of man factur r The man factur r shal ha e a means of spe ifying

the MP s for the pr sc ibed calbrat ed t es lengths measur d in the p sitions desc ibed in Ta le 4 of

thisp rt of ISO 1 3 0

F or the purp ses of comp ring spe ifications, the MP s for p sitions 1 t o 3 an 41 shal be ex lcitly

s at ed in a ta le such as shown in An ex A at the s an of dis anc s in icat ed in Ta le 4 an a t es

length of 2,7 m, ex cept for lengths 3 t o 3 w hich shal be a length of 9 m Whe e the s an of dis anc

is “as close aspractical,” a dis anc of 0,5 m shal be used in computing the MP

F or the purp ses of t es ing, the calbrat ed t es lengths ma be within the rang es of length ( i.e 2,2 m

t o 2,7 m an 7 m t o 9 m) s at ed in Ta le 4, an the MP s used t o det ermine conformanc of the lase

tracker wi l be r calculat ed b sed on the actual length of the t es length used in the t es

The MP s for p sitions 3 t o 40 shal be s at ed as a formula in A + ( B/K )L form

6.4.2 Principle

The length measur ment e rors desc ibe the thr e-dimensional deviation beha iour of the lase tracke

in the spe ified measuring v lume This deviation beha iour is caused b the supe p sition of dife ent

in ivid al deviations such as u cor e t ed sy st ematic deviations of the length measuring sy st em an

the angle encode s, ran om measuring deviations, g eometric impe fe tions in the rotary ax es an / r of

the pro ing sy st em As thedeviation beha iour depen s, among othe things, on the mode of o e ation,

dife ent v lues of the charact eris ics ma r sult for dife ent modes of o e ation ( int erfe ometric or

a solut e dis anc measur ment, ve tical or horizontal ins alation of the lase tracke , an the use of an

SMR, SRC, or ODR) If a spe if ic mode of o e ation is not in icat ed in the man factur r’ s spe if ication,

this spe if ication shal a ply t o al modes of o e ation a ai a le t o the use It is r commen ed, if

multiple sensors ar a ai a le, that the length t es s be pe formed with the SMR t o det ermine length

measur ment e rors The pe formanc of the othe sensors shal then be det ermined in ac ordanc

with the proc d r s in An ex G an An ex H

NOTE Lines f an g of the specif ication she t (An e A) are e amples of where modes of operation might b

specif ied by the man facturer

In mos cases, length t es ing is pe formed with an SMR only A dditional t es s for ac es ory pro ing

sy st ems ar given in Annex G an An ex H If b th IFM an ADM ar spe if ied, pe form a subset of two

complet e t es s ac ording t o 6.4.4.4

6.4.3 Me sur ing equipment

A calbrat ed t es length ma ber alz d in a n mbe of way s, inclu ing scale b rs, targ et nes s mou t ed

on wals or fr es an ing s ructur s, use of a rai-and-car iag e sy st em, g ug e blocks, b l b rs, et c

An ex B pro ides the detai s of t es lengths

A lase tracker uses one lnear a is an two rotary ax es t o det ermine the location of a r tror fle t or

The normative locations in Ta le 4 inclu e t es s that sp n at leas 66 % of the man factur r spe if ied

measuring rang es of the lnear an the two angular ax es, r spe tively Positions 1 an 2 ac omplsh

this for each rotary a is sep rat ely, w hie p sitions 3 t o 40 ac ompl sh this for the ranging (l near)

The man factur r shal s at e the up e , an o tional y lowe , lmit of the CTE of the calbrat ed t es

length The man factur r ma calbrat e the CTE of a calbrat ed t es length The man factur r shal

spe ify the ma imum pe mitt ed ( k = 2) unc rtainty of the CTE of the calbrat ed t es length In the

case w he e the calbrat ed t es length is comp sed of a u i-dir ctional length an othe information as

desc ibed in An ex B, the CTE shal be conside ed t o be that of the uni-dir ctional length The default

for a cal brat ed t es length is a normal CTE mat erial unles the man factur r’ s spe if ications ex lcitly

s at e othe wise

A r fe enc lase int erfe omet er ma be used t o es a l sh calbrat ed t es lengths A lase int erfe omet er

that is cor e t ed for the in ex of r fraction of air has a z ro CTE (α = 0) Henc , if it is used t o prod c

a calbrat ed t es length, this t es length is conside ed a low CTE mat erial A dditionaly, if the r fe enc

lase has a workpie e (mat erial) t empe atur sensor, then the workpie e CTE in the lase ’s sof war

shal be set t o 0 If a t empe atur compensat ed lase tracker is being t est ed, the workpie e CTE in the

lase tracke sof war shal be set t o 0w hen measuring these t es lengths

If the calbrat ed t es length is not a normal CTE mat erial, then the cor espon ing E

Uni:0:LT,MP

or E

Bi:0:LT,MP

v lues ar designat ed with an ast erisk ( *) an an ex lanat ory not e shal be pro ided

desc ibing the CTE of the calbrat ed t es length

/ °C an with an e pan ed u certainty (k = 2)

U(C E)no gre t er than 0,3 × 1

/ °C ( h s being a non-normal CTE), an ad itional “ ynthetic length t es ” shal be

pe formed, as desc ibed in Annex C

NOTE 1 Due to the larg size of test lengths req ired for t esting laser track er ,it is common for this low C E

option t o b inclu ed in the laser track er specif ications

NOTE 2 Because of the diff iculty in esta lishing long t est lengths, especial y in re l en ironments, the test

value u certainty is very important in det ermining conformance t o specif ications

6.4.4 Pr oc edure

6.4.4.1 Required test leng th positio s

Plac the calbrat ed t es length() at each location an orientation r lative t o the lase tracker desc ibed

in Ta le 4 an shown in Figur 3 If, in the case of IFM measur ment , a beam br ak oc urs d ring a

length measur ment, the measur ment d ring w hich the beam was broken shal be r s art ed In the

case ofADMmeasur ment , the beam shal be broken befor each r fle t or measur ment (at eithe en

of each length measur ment), for ing the lase tracker t o r -es a l sh the dis anc t o the r fle t or as

p rt of the ADM measur ment proc s Each entry in Ta le 4 shal ha e a man factur r spe if ied MP

that is a pl ca le t o that p rticular calbrat ed t es length in the orientation an location spe if ied

In Ta le 4, the lase tracker origin is at the int erse tion of the two rotary ax es, an the azimuth angle

has clockwise sense a out the ve tical s an ing a is of the lase tracke , with 0° azimuth set b the

non-rotating lase tracker base The dis anc of the t es length from the lase tracker origin is shown b

dis anc d in Figur 3

NOTE 1 In man instances, it may b e sier to move or re-orient the laser tracker than to move the test length

Table 4 — Me surement positio s

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

idis-tant fom the laser t a k er), an at laser t a k er heig t

Ver ic l, c nt e of the len th at laser t a k er heig t en s of the

tes len th eq idis ant rom the laser t a k er)

b

at an a imuth

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

idis-tant fom the laser t a k er), an at laser t a k er heig t

0, 9 , 18 , 27

Ver ic l, c nt e of the len th at laser t a k er heig t (en s of the

tes len th eq idis ant f om the laser t a k er)

at an a imuth

Rig t diagonal, c nt ed (i.e the en s of the tes len th are eq

i-dis ant rom the laser t a k er), an the c nt e of the len th is at

laser t a k er heig t

0, 9 , 18 , 27

Lef diagonal, c nt ed (i.e the en s of the tes len th are eq

i-dis ant rom the laser t a k er), an the c nt e of the len th is at

laser t a k er heig t

0, 9 , 18 , 27

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

idis-tant rom the laser t a k er), an at laser t a k er heig t

0, 9 , 18 , 27

20– 3

As close as

pra tic l

Horiz ntal, not-c nt ed (i.e the laser ta k er is dire tly in font

of one en of the len th), an at laser t a k er heig t

0, 9 , 18 , 27

24

As close as

pra tic l

Ver ic l, not-c nt ed (i.e the laser t a k er is dire tly in font of

one en of the len th)

at an a imuth

2 – 8

As close as

pra tic l

Diagonal, one en below or above the point dire tly in font of

the laser t a k er, the other en to the rig t or lef of the point

dire tly in font of the laser t a k er The ran e to the two en s of

the len th are eq al

0, 9 , 18 , 27

29

As close as

pra tic l

Horiz ntal, c nt ed dire tly above (as much as that is pos ible)

the laser t a k er it elf

at an a imuth

c)

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

idis-tant rom the laser t a k er), at laser t a k er heig t

0, 30, 6 , 9 , 1 0, 1 0

36–4

5 Ran in tes

dis anc s

These tes dis anc s c ver 6 % of the l ne r a is (IFM or A M)

of the laser t a k er

Folow req irement of An ex C

(only req ired for low CTE tes len th c se)

at an a imuth

a

This te t cov er 6 % of the h rizo tal a gle measur ment ra ge of the las r track er, if the ma imum a gle is co side ed to be 1 0°

for a sin le p int-to-p int measur ment

The dista c betwe n the two measur d p ints us d to ev lu te the lo ge t e t len th sh l be at least 6 % of the ma ufactur r

spe ified ma imum measur ment ra ge of the las r tracke u le s the e is mutu l a r ement othe wis betwe n ma ufactur r a d

the us r

e

F r us r th t d n t inten to us the ful measur ment ra ge of the las r track er, the us r ma ch os len ths 3 to 4 th t sp n

a sh rte ra ge th n 6 % of the ma imum spe ified ra ge a d sh l n te the new ma imum ra ge o the te t r p rt This d e n t

influenc a y f the othe spe ificatio s in this p rt of ISO 1 3 0

NOTE 2 The lengths in Ta le 4 are su plemented with ad itional me surements (se 6.4.3) for a t otal of 1 5

length me surements

In the ranging t es s (lengths 3 t o 40), each of the f ive t es lengths ar def ined as a two p int dis anc

Howeve , it is pe mitt ed t o measur a firs p int close t o the lase tracker (e.g les than 1,5 m from the

lase tracker) an then the five suc es ive p int at inc easing dis anc s, w he e the five t es lengths

t o be smal compar d t o the e rors o se ved in the long lengths measur d in the ranging t es s The

use ma , however, r q ir that the ful formal t es proc d r be con uct ed at each t es length; this r

-measur s the A location f ive times as in (AB, AC, AD, AE, AF) or (AB, CA, AD, EA, AF) The dis ribution

of the t es lengths shal be a pro imat ely evenly sp c d, with thelong es length (AF)sp nning at leas

6 % of the man factur r spe ified ma imum measuring rang e of the ins rument

In some cases, t es lengths ma not be a aia le that ar sufficiently long t o sp n 6 % of the ins rument’s

measuring rang e In this case, b th p rties ma a r e t o use othe means t o g ene at e a calbrat ed t es

length These might inclu e length s an ards that ar “ tit ched” t og ethe ( i.e o e la ped en -t o-en )

t o form a long er t es length, or laser-based t es lengths, such as thoseconsis ing of a l ne of nes s w hose

nes -t o-nes dis anc s ar calbrat ed with a r fe enc int erfe omet er or using multiat eration In such

cases, the proc d r shal be document ed an the u c rtainties as ociat ed with these t ech iq es shal

be conside ed car ful y, as they contribut e t o the t es v lue unc rtainty

The t est er should use extr me car t o be c rtain that the environment an the t es length en p int

ar s a le for the measur ment of t es lengths 3 t o 40 It is common that these lengths ar es a lshed

using a r fe enc int erfe omet er in air, an v ria i ty in the environment or the nes s can contribut e t o

unc rtainty in the t es length, w hich contribut es t o the t es v lue u c rtainty of the length measur ment

e ror v lue

dB

A

dB

A

dB

A

dA

B

dB

A

dB

A

dB

A

A

dB

Key

A an B en s of the test leng th

d shortest distance from the laser tr acker orig in to a vertical line containing the leng th

NOTE d is perpen icular t o the vertical plane containing the t est length Where the t est length is vertical, the

plane is also perpen icular t o a horizontalline from the laser tracker origin t o a line containing the t est length

Figure 3— Positions for t est lengths (positio s 1 – 29)

6.4.4.2 User-defined positio s: alter nati ve 1

In orde t o o tain 1 5 t es lengths (consist ent with othe p rt of ISO 1 3 0), an ad itional 64 t es

length p sitions ar ad ed t o the 41 t es length p sitions in 6.4.4.1 To as is the use in cho sing these

measur ment p sitions, two alt ernative set of sup lemental p sitions ar desc ibed Alt ernative 1 is

desc ibed in Ta le 5

Table 5 — Supplemental me surement positions – Alternative 1

42 4 3 m Position 7 at diferent an les - Ver ic l, c nt ed (i.e the

en s of the tes len th are eq idis ant rom the laser t a

k-er), an the c nt e of the len th is at laser t a k er heig t

9 , 18 , 27

(elative to the an le

used in position 7)

45 4 6 m Ver ic l, c nt e of the len th at laser t a k er heig t en s of

the tes len th eq idis ant rom the laser t a k er)

0, 9 , 18 , 27

4 – 2 6 m Rig t diagonal, c nt ed (i.e the en s of the tes len th are

eq idis ant f om the laser t a k er), an the c nt e of the

len th is at laser t a k er heig t

0, 9 , 18 , 27

5 – 6 6 m Lef diagonal, c nt ed (i.e the en s of the tes len th are

eq idis ant f om the laser t a k er), an the c nt e of the

len th is at laser t a k er heig t

0, 9 , 18 , 27

57– 9 As close as pra

-tic l

Position 24 at diferent an les - Ver ic l, not-c nt ed (i.e

the laser t a k er is dire tly in f ont of one en of the len th)

Horiz ntal, not-c nt ed (i.e the laser t a k er is dire tly in

font of one en of the len th), an at laser t a k er heig t

This is the mir or position c r espon in topositions

20– 3in Table 4 (If the laser t a k er w ere previously

dire tly in f ont of en B of the tes len th as in Fig re 3e),

then, the laser t a k er mus now be positioned dire tly in

f ont of en A of the tes len th)

0, 9 , 18 , 27

6 –6 As close as pra

-tic l

Diagonal, one en below or above the point dire tly in font

of the laser t a k er, the other en tothe rig t or lef of the

point dire tly in f ont of the laser t a k er The ran e to the

two en s of the len th are eq al This is the c

mplemen-tary position c r espon in to positions 2 – 8 in Table 4

[e.g if the laser t a k er were previously dire tly in f ont of

an below target B with laser t a k er an target A at he

same heig t, as in Fig re 3g), then the laser t a k er should

now be dire tly in font of an above en A of the tes

len th with the laser t a k er an en Bof the tes len th at

the same heig t]

0, 9 , 18 , 27

6 – 71 As close as pra

-tic l

Diagonal, one en below or above the point dire tly in font

of the laser t a k er, the other en to the rig t or lef of the

point dire tly in f ont of the laser t a k er The ran e to the

two en s of the len th are eq al This is the mir or position

c r espon in to positions 6 –6 above (If the tes len th

was in a rig t diagonal position for positions 6 –6 , then

the tes len th should be oriented in a “lef diagonal”

posi-tion for positions 6 –71.)

0, 9 , 18 , 27

72– 74 As close as pra

-tic l

Horiz ntal, c nt ed dire tly above (as much as is pos ible)

the laser t a k er it elf

Diagonal, c nt ed (i.e the en s of the tes len th are eq

i-dis ant rom the laser t a k er), an the c nt e of the len th

is at laser t a k er heig t

0, 9 , 18 , 27

R ep ata i ty

me surements:

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

i-dis ant fom the laser t a k er), an at laser t a k er heig t

R epe t he me surement our times

This tes s the repe tabi ty of the horiz ntal an le me

s-urement c pabi ty

Horiz ntal, c nt ed (i.e the en s of the tes len th are eq

i-dis ant fom the laser t a k er), an at laser t a k er heig t

R epe t he me surement our times

This tes s the repe tabi ty of the horiz ntal an le me

s-urement c pabi ty

Ver ic l, c nt e of the len th at laser t a k er heig t en s of

the tes len th eq idis ant fom the laser t a k er)

R epe t he me surement our times

This tes s the repe tabi ty of the ver ic l an le me

sure-ment c pabi ty

Ver ic l, c nt e of the len th at laser t a k er heig t en s of

the tes len th eq idis ant fom the laser t a k er)

R epe t he me surement our times

This tes s the repe tabi ty of the ver ic l an le me

sure-ment c pabi ty

at an a imuth

9 –102 3 m In an radial dire tion, where the ne r en of the len th is

3 m away f om the laser t a k er

R epe t he me surement our times

This tes s the repe tabi ty of the ran e me surement

c pabi ty

at an a imuth

103 105 6 m In an radial dire tion, where the ne r en of the len th is

6 m away f om the laser t a k er

R epe t he me surement hre times

This tes s the repe tabi ty of the ran e me surement

c pabi ty

at an a imuth

6.4.4.3 User defined p sitio s: alter nati ve 2

In orde t o o tain 1 5 t es lengths (consist ent with othe p rt of ISO 1 3 0), an ad itional 64 t es

length p sitions ar ad ed t o the 41 t es length p sitions in6.4.4.1 To as is the use in cho sing these

measur ment p sitions, two alt ernative set of sup lemental p sitions ar desc ibed Alt ernative 2 is

desc ibed in Figur 4

In this alt ernative, the lase tracker is c ntr d in front of the long es side of the measuring v lume at a

dis anc of 1,5 m in such a wa that the measuring head is a pro imat ely eq idis ant from the up e

an lowe edg e of the measuring v lume The t es length p sitions ar det ermined b eight dife ent

measur ment lnes Figur 4 show s a p s ible ar ang ement of these eight measur ment lnes Othe

ar ang ement ar also pe mitt ed

Table 5 (c ontin ed)

Figure 4 — Example showing the ar ang ement of the me surement lnes for the test of the

length me surement er or

The 64 t es length p sitions in this alt ernative of the ac eptanc t es ar desc ibed r lative t o a

measuring v lume of 1 m × 6 m × 3 m (length × width × height) If the lase tracker is primariy used

t o measur smal p rt , a measuring v lume of 5m × 3 m × 2m is then r commen ed Othe measuring

v lumes ar , howeve , pe mitt ed The setup shown in Figur 4 consis s of 3 in ivid al dis anc s Al in

al, 64 t es lengths should be measur d along the eight measur ment l nes Along eve y measur ment

l ne at leas thr e dife ent t es lengths mus be measur d The measur ment along each measur ment

l ne shal be r peat ed at dife ent orientations: in orde t o co e the complet e azimuth rang e, the lase

tracker shal be rotat ed b a pro imat ely 1 0° a out it ve tical a is befor the r peat ed measur ment

of a l ne In ad ition, some t es length measur ment should be r peat ed along each measuring l ne