EN ISO 10360-8:2013

SLOVENSKI STANDARD
01-julij-2014
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND*363UHVNXVLVSUHMHPOMLYRVWLLQ
SRQRYQHJDSUHYHUMDQMDVWURMHY]DPHUMHQMHNRRUGLQDWGHO.RRUGLQDWQLPHULOQL
VWURML]RSWLþQRGLVWDQþQLPLVHQ]RUML,62
Geometrical product specifications (GPS) - Acceptance and reverification tests for
coordinate measuring systems (CMM) - Part 8: CMMs with optical distance sensors (ISO
10360-8:2013)
Geometrische Produktspezifikation und -prüfung (GPS) - Annahme- und
Bestätigungsprüfung für Koordinatenmessgeräte (KMG) - Teil 8: KMG mit optischen
Abstandssensoren (ISO 10360-8:2013)
Spécification géométrique des produits (GPS) - Essais de réception et de vérification
périodique des machines à mesurer tridimensionnelles (MMT) - Partie 8: MMT avec
détecteurs optiques sans contact (ISO 10360-8:2013)
Ta slovenski standard je istoveten z: EN ISO 10360-8:2013
ICS:
17.040.30 Merila Measuring instruments
17.040.40 6SHFLILNDFLMDJHRPHWULMVNLK Geometrical Product
YHOLþLQL]GHOND*36 Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10360-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2013
ICS 17.040.30
English Version
Geometrical product specifications (GPS) - Acceptance and
reverification tests for coordinate measuring systems (CMS) -
Part 8: CMMs with optical distance sensors (ISO 10360-8:2013)
Spécification géométrique des produits (GPS) - Essais de Geometrische Produktspezifikation und -prüfung (GPS) -
réception et de vérification périodique des systèmes de Annahme- und Bestätigungsprüfung für
mesure tridimensionnels (SMT) - Partie 8: MMT avec Koordinatenmessgeräte (KMG) - Teil 8: KMG mit optischen
détecteurs optiques sans contact (ISO 10360-8:2013) Abstandssensoren (ISO 10360-8:2013)
This European Standard was approved by CEN on 16 November 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10360-8:2013 E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 10360-8:2013) has been prepared by Technical Committee ISO/TC 213 “Dimensional
and geometrical product specifications and verification” in collaboration with Technical Committee
CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is
held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at
the latest by June 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 10360-8:2013 has been approved by CEN as EN ISO 10360-8:2013 without any modification.

INTERNATIONAL ISO
STANDARD 10360-8
First edition
2013-12-01
Geometrical product specifications
(GPS) — Acceptance and reverification
tests for coordinate measuring
systems (CMS) —
Part 8:
CMMs with optical distance sensors
Spécification géométrique des produits (GPS) — Essais de
réception et de vérification périodique des systèmes de mesure
tridimensionnels (SMT) —
Partie 8: MMT avec détecteurs optiques sans contact
Reference number
ISO 10360-8:2013(E)
©
ISO 2013
ISO 10360-8:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
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ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols . 9
5 Requirements for metrological characteristics .10
5.1 Environmental conditions .10
5.2 Operating conditions .10
5.3 Probing form error .11
5.4 Probing dispersion value .11
5.5 Probing size error .11
5.6 Probing size error All .11
5.7 Length measurement error .12
5.8 Flat form measurement error .12
5.9 Workpiece loading effects .12
6 Acceptance tests and reverification tests .13
6.1 General .13
6.2 Probing characteristics .13
6.3 Length measurement error .20
6.4 Flat form measurement error .23
7 Compliance with specifications .26
7.1 Acceptance test .26
7.2 Reverification test .27
8 Applications .28
8.1 Acceptance test .28
8.2 Reverification test .28
8.3 Interim check .28
9 Indication in product documentation and data sheets .28
Annex A (informative) Structural resolution test .29
Annex B (normative) Artefacts that represent a calibrated test length.34
Annex C (informative) Alignment of artefacts .44
Annex D (normative) Articulated location value of CMMs with articulating probing system for
optical distance sensors.46
Annex E (informative) Relation to the GPS matrix model.49
Bibliography .51
ISO 10360-8:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 213, Dimensional and geometrical product
specifications and verification.
ISO 10360 consists of the following parts, under the general title Geometrical product specifications
(GPS) — Acceptance and reverification tests for coordinate measuring machines (CMM):
— Part 1: Vocabulary
— Part 2: CMMs used for measuring linear dimensions
— Part 3: CMMs with the axis of a rotary table as the fourth axis
— Part 4: CMMs used in scanning measuring mode
— Part 5: CMMs using single and multiple stylus contacting probing systems
— Part 6: Estimation of errors in computing of Gaussian associated features
— Part 7: CMMs equipped with imaging probing systems
ISO 10360 also consists of the following parts, under the general title Geometrical product specifications
(GPS) — Acceptance and reverification tests for coordinate measuring systems (CMS):
— Part 8: CMMs with optical distance sensors
— Part 9: CMMs with multiple probing systems
— Part 10: Laser trackers for measuring point-to-point distances
The following parts are under preparation:
— Part 12: Articulated-arm CMMs
Computed tomography is to form the subject of a future part 11.
iv © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
Introduction
This part of ISO 10360 is a geometrical product specification (GPS) standard and is to be regarded
as a general GPS standard (see ISO/TR 14638). It influences link 5 of the chains of standards on size,
distance, radius, angle, form, orientation, location, run-out and datums. For more detailed information
of the relation of this part of ISO 10360 to other standards and the GPS matrix model, see Annex E.
The ISO/GPS Masterplan given in ISO/TR 14638 gives an overview of the ISO/GPS system of which this
document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and
the default decision rules given in ISO 14253-1 apply to specifications made in accordance with this
document, unless otherwise indicated.
The tests of this part of ISO 10360 have two technical objectives:
a) to test the error of indication of a calibrated test length using an optical distance sensor and
b) to test the errors of the optical distance sensor.
Optical distance sensors treated in this standard are classified into two types,
— point measuring sensors, and
— area measuring sensors (e.g. laser point scan, laser line scan, fringe projection)
The benefits of these tests are that the measured result has a direct traceability to the unit length, the
metre, and that it gives information on how the CMM (coordinate measuring machine) will perform on
similar length measurements.
This part of ISO 10360 parallels that of ISO 10360-2 and ISO 10360-5, which is for CMMs equipped with
contact probing systems. The testing methodology between these three parts of ISO 10360 is designed
to be intentionally similar. The differences that exist may be eliminated in future revisions of this part
or in ISO 10360-2.
INTERNATIONAL STANDARD ISO 10360-8:2013(E)
Geometrical product specifications (GPS) — Acceptance
and reverification tests for coordinate measuring
systems (CMS) —
Part 8:
CMMs with optical distance sensors
1 Scope
This part of ISO 10360 specifies the acceptance tests for verifying the performance of a CMM (coordinate
measuring machine) when measuring lengths as stated by the manufacturer. It also specifies the
reverification tests that enable the user to periodically reverify the performance of the CMM. The
acceptance and reverification tests given in this part of ISO 10360 are applicable only to Cartesian CMMs
with optical distance sensors. This standard does not explicitly apply to non-Cartesian CMMs, however,
the parties may apply this part of 10360 to non-Cartesian CMMs by mutual agreement.
NOTE This part of ISO 10360 is not intended to apply for CMMs whose measuring volume is significantly
smaller than the size of the test sphere, however, the principle, artefacts, and procedure of the test described in
this part of ISO 10360 are useful for the acceptance and reverification tests of those CMMs either as it is or with
modifying the parameters such as the size of the test artefacts and the number of the measurements.
This part of ISO 10360 specifies:
— performance requirements that can be assigned by the manufacturer or the user of the CMM,
— the manner of execution of the acceptance and reverification tests to demonstrate the stated
requirements,
— rules for verifying conformance, and
— applications for which the acceptance and reverification tests can be used.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 10360-1:2000, Geometrical Product Specifications (GPS) — Acceptance and reverification tests for
coordinate measuring machines (CMM) — Part 1: Vocabulary
ISO 10360-2:2009, Geometrical product specifications (GPS) — Acceptance and reverification tests for
coordinate measuring machines (CMM) — Part 2: CMMs used for measuring linear dimensions
ISO 10360-5:2010, Geometrical product specifications (GPS) — Acceptance and reverification tests for coordinate
measuring machines (CMM) — Part 5: CMMs using single and multiple stylus contacting probing systems
ISO 14253-1, Geometrical product specifications (GPS) — Inspection by measurement of workpieces and
measuring equipment — Part 1: Decision rules for proving conformity or nonconformity with specifications
ISO/TS 23165:2006, Geometrical product specifications (GPS) — Guidelines for the evaluation of coordinate
measuring machine (CMM) test uncertainty
ISO 10360-8:2013(E)
ISO/IEC Guide 99, International vocabulary of metrology — Basic and general concepts and associated
terms (VIM)
3 Terms and definitions
For the purposes of this part of ISO 10360, the terms and definitions given in ISO 10360-1, ISO 14253-1
and ISO/IEC Guide 99 and the following apply.
3.1
optical distance sensor
non-contacting probing system which determines a corrected measured point by means of optical
distance measurement principle
Note 1 to entry: Typical measurement principles are triangulation and coaxial distance measurement. The
former includes structured line projection, Moiré, slit light projection, point scanning, etc., and the latter includes
interferometry and confocal systems.
3.2
local test flat
flat form standard used for evaluating the probing form error when testing the probing performance
Note 1 to entry: A local test flat is used in addition to the test sphere which is used for evaluating both the probing
form and probing size errors.
Note 2 to entry: A local test flat is useful for testing probing performance when a calibrated test sphere with
larger size suitable for an optical distance sensor with larger sensor area is practically difficult to obtain. Figure 5
shows a flow chart for material standard selection.
3.3
global test flat
flat form standard used when testing the flat form measurement error
Note 1 to entry: Global test flat is intended and encouraged to test form measuring performance of a CMM equipped
with an optical distance sensor when the system is used for measuring a larger area than the sensor area.
3.4
sensor area
area illuminated by the optical distance sensor when a two-dimensional image-projection-type
sensor is used
Note 1 to entry: The sensor area is determined not only by the length of the projection line of the sensor but also
by the length of the sensor movement realized by the CMM when line scan or point scan sensors are used.
See Figure 1.
2 © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
a) Example of line scan or point scan sensor b) Example of two dimensional image projec-
tion sensor
Key
L length of the projection line
S
L length of the sensor movement
D
a line scan or point scan sensor
b two dimensional image projection sensor
c sensor axis
d sensor area
e sensor motion
Figure 1 — Definition of the sensor area
3.5
probing form error
P
Form.Sph.1×25:j:ODS
error of indication within which the range of either the radial distances that can be determined by a
least-squares fit (Gaussian associated feature) of points measured on a spherical material standard of
size or those supplemented with the normal distances that can be determined by a least-squares fit of
points measured on a local test flat
Note 1 to entry: The symbol “P” in P indicates that the error is associated with the probing system
Form.Sph.1×25:j:ODS
performance, the qualifier “Form.Sph” indicates that it is associated with the probing form error and the qualifier
“ODS” indicates that it is associated with the optical distance sensor. The qualifier “j” identifies the measuring
conditions of the CMM. P is the optical probing form error translatory, which is given when the
Form.Sph.1×25:Tr:ODS
sensor is moved by the CMM and measurements are taken at several positions. P is the optical
Form.Sph.1×25:Art:ODS
probing form error articulating, which is given when the alignment of the sensor is additionally modified by
means of an articulating system. P is the optical probing form error stationary, which is given
Form.Sph.1×25:St:ODS
when the sensor is not moved by the CMM during measurements (see Figure 3).
Note 2 to entry: The probing form error is determined by the errors of the sensors (such as noise, digitizing errors,
image distortion, optical interaction with the surface of the material standard, calibration errors of the sensor,
faulty algorithms in measured data processing) and those of the CMM.
See Figure 2.
ISO 10360-8:2013(E)
D
P
D
P D
Key
D calibrated diameter of test sphere GS Gaussian associated sphere
cal
D measured diameter of test sphere MP measured point
meas
Figure 2 — Illustration of P and P
Form.Sph.1×25:j:ODS Size.Sph.1×25:j:ODS
a) Translatory b) Articulating c) Stationary
Key
ods optical distance sensor x_art articulation
s test sphere x_tr translation
Figure 3 — Illustration of Tr, Art and St
4 © ISO 2013 – All rights reserved
D
D
ISO 10360-8:2013(E)
3.6
probing dispersion value
P
Form.Sph.D95%:j:ODS
smallest width of a spherical shell or smallest separation of two parallel planes that encompasses 95 %
of all the data points
Note 1 to entry: The symbol “P” in P indicates that the error is associated with the probing
Form.Sph.D95%:j:ODS
system performance, the qualifier “Form.Sph” indicates that it is associated with the probing form error, the
qualifier “D95%” indicates that it is associated with the dispersion of the probing points with 95 % population and
the qualifier “ODS” indicates that it is associated with the optical distance sensor. The qualifier “j” identifies the
measuring conditions of the CMM. P is the probing dispersion value translatory, which is given
Form.Sph.D95%:Tr:ODS
when the sensor is moved by the CMM and measurements are taken at several positions. P is
Form.Sph.D95%:Art:ODS
the probing dispersion value articulating, which is given when the alignment of the sensor is additionally modified
by means of an articulating system. P is the probing dispersion value stationary, which is given
Form.Sph.D95%:St:ODS
when the sensor is not moved by the CMM during measurements (see Figure 3).
Note 2 to entry: The dispersion of the probing system is also called the range or thickness of the probing (point) cloud.
Note 3 to entry: 5 % of the measured points are eliminated to determine P . Outlier data points
Form.Sph.D95%:j:ODS
that might be present in the measurement data may also be eliminated by this operation.
Note 4 to entry: For this particular definition, the plane is thought of as a sphere of infinite radius.
3.7
probing size error
P
Size.Sph.1×25:j:ODS
error of indication of the difference between the diameter of a least-squares fit of 25 representative
points on a test sphere and its calibrated diameter
Note 1 to entry: The symbol “P” in P indicates that the error is associated with the probing system
Size.Sph.1×25:j:ODS
performance, the qualifier “Size.Sph” indicates that it is associated with the probing size error and the qualifier
“ODS” indicates that it is associated with the optical distance sensor. The qualifier “j” identifies the measuring
conditions of the CMM. P is the optical probing size error translatory, which is given when the
Size.Sph.1×25:Tr:ODS
sensor is moved by the CMM and measurements are taken at several positions. P is the optical
Size.Sph.1×25:Art:ODS
probing size error articulating, which is given when the alignment of the sensor is additionally modified by means
of an articulating system. P is the optical probing size error stationary, which is given when the
Size.Sph.1×25:St:ODS
sensor is not moved by the CMM during measurements (see Figure 3).
Note 2 to entry: Probing size error is determined by the errors of the sensors (such as noise, digitizing errors,
image distortion, optical interaction with the surface of the material standard, calibration errors of the sensor,
faulty algorithms in measured data processing) and those of the CMM.
See Figure 2.
3.8
probing size error All
P
Size.Sph.All:j:ODS
error of indication of the difference between the diameter of a least-squares fit of all points measured on
a test sphere and its calibrated diameter
Note 1 to entry: The symbol “P” in P indicates that the error is associated with the probing system
Size.Sph.All:j:ODS
performance, the qualifier “Size.Sph” indicates that it is associated with the probing size error, the qualifier
“All” indicates that all measuring points are used for the calculation and the qualifier “ODS” indicates that it is
associated with the optical distance sensor. The qualifier “j” identifies the measuring conditions of the CMM. P
Size.
is the optical probing size error translatory, which is given when the sensor is moved by the CMM and
Sph.All:Tr:ODS
measurements are taken at several positions. P is the optical probing size error articulating,
Size.Sph.All:Art:ODS
which is given when the alignment of the sensor is additionally modified by means of an articulating system. P
Size.
is the optical probing size error stationary, which is given when the sensor is not moved by the CMM
Sph.All:St:ODS
during measurements (see Figure 3).
Note 2 to entry: Probing size error All is determined by the errors of the sensors (such as noise, digitizing errors,
image distortion, optical interaction with the surface of the material standard, calibration errors of the sensor,
faulty algorithms in measured data processing) and those of the CMM.
ISO 10360-8:2013(E)
3.9
length measurement error
E
Bi:j:ODS
E
Uni:j:ODS
error of indication when measuring a calibrated test length
Note 1 to entry: The symbol “E” in E or E indicates that the error is associated with the measurement
Bi:j:ODS Uni:j:ODS
error, the qualifier “Bi” or “Uni” indicates that it is associated with the bidirectional or unidirectional length
measurement error and the qualifier “ODS” indicates that it is associated with the optical distance sensor. The
qualifier “j” identifies the measuring conditions of the CMM. E or E is the length measurement
Bi:Tr:ODS Uni:Tr:ODS
error using optical probe translatory, which is given when the sensor is moved by the CMM and measurements
are taken at several positions. E or E is the length measurement error using optical probe
Bi:Art:ODS Uni:Art:ODS
articulating, which is given when the alignment of the sensor is additionally modified by means of an articulating
system. E or E is the length measurement error using optical probe stationary, which is given
Bi:St:ODS Uni:St:ODS
when the sensor is not moved by the CMM during measurements.
Note 2 to entry: A calibrated test length may be either bidirectionally calibrated or unidirectionally calibrated.
See Annex B for detail.
3.10
flat form measurement error
E
Form.Pla.D95%:j:ODS
smallest distance between two parallel planes that envelope 95 % of the points measured on a global test flat
Note 1 to entry: The symbol “E” in E indicates that the error is associated with the measurement
Form.Pla.D95%:j:ODS
error, the qualifier “Form.Pla” indicates that it is associated with the flat form measurement error, the qualifier
“D95%” indicates that it is associated with the dispersion of the measuring points with 95 % population and
the qualifier “ODS” indicates that it is associated with the optical distance sensor. The qualifier “j” identifies
the measuring conditions of the CMM. E is the optical probing flat form measurement error
Form.Pla.D95%:Tr:ODS
translatory, which is given when the sensor is moved by the CMM and measurements are taken at several positions.
E is the optical probing flat form measurement error articulating, which is given when the
Form.Pla.D95%:Art:ODS
alignment of the sensor is additionally modified by means of an articulating system.
3.11
maximum permissible probing form error
P
Form.Sph.1×25:j:ODS,MPE
extreme value of P permitted by specifications as maximum permissible error
Form.Sph.1×25:j:ODS
Note 1 to entry: The maximum permissible error of the probing form error P may be
Form.Sph.1×25:j:ODS,MPE
expressed in one of three forms:
a) P = minimum of (A+L /K) and B, or
Form.Sph.1×25:j:ODS,MPE P
b) P = (A+L /K), or
Form.Sph.1×25:j:ODS,MPE P
c) P = B
Form.Sph.1×25:j:ODS,MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere (or flat),
P
in millimetres;
B is the maximum permissible error P , in micrometres, as stated by the
Form.Sph.1×25:j:ODS,MPE
manufacturer.
6 © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
3.12
maximum permissible limit of probing dispersion
P
Form.Sph.D95%:j:ODS,MPL
extreme value of P permitted by specifications as maximum permissible limit
Form.Sph.D95%:j:ODS
Note 1 to entry: The maximum permissible limit of the probing dispersion value P may be expressed
Form, 95%, X, MPL
in one of three forms:
a) P = minimum of (A+L /K) and B, or
Form.Sph.D95%:j:ODS,MPL P
b) P = (A+L /K), or
Form.Sph.D95%:j:ODS,MPL P
c) P = B
Form.Sph.D95%:j:ODS,MPL
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere (or flat),
P
in millimetres;
B is the maximum permissible limit P , in micrometres, as stated by the
Form.Sph.D95%:j:ODS,MPL
manufacturer.
3.13
maximum permissible probing size error
P
Size.Sph.1×25:j:ODS,MPE
extreme value of P permitted by specifications as maximum permissible error
Size.Sph.1×25:j:ODS
Note 1 to entry: The maximum permissible probing size error P may be expressed in one
Size.Sph.1×25:j:ODS,MPE
of three forms:
a) P = minimum of (A+L /K) and B, or
Size.Sph.1×25:j:ODS,MPE P
b) P = (A+L /K), or
Size.Sph.1×25:j:ODS,MPE P
c) P = B
Size.Sph.1×25:j:ODS,MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere (or flat),
P
in millimetres;
B is the maximum permissible error P , in micrometres, as stated by the
Size.Sph.1×25:j:ODS,MPE
manufacturer.
3.14
maximum permissible probing size error All
P
Size.Sph.All:j:ODS,MPE
extreme value of P permitted by specifications as maximum permissible error
Size.Sph.All:j:ODS
Note 1 to entry: The maximum permissible probing size error All P may be expressed in one
Size.Sph.All:j:ODS,MPE
of three forms:
ISO 10360-8:2013(E)
a) P = minimum of (A+L /K) and B, or
Size.Sph.All:j:ODS,MPE P
b) P = (A+L /K), or
Size.Sph.All:j:ODS,MPE P
c) P = B
Size.Sph.All:j:ODS,MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere (or flat),
P
in millimetres;
B is the maximum permissible error P , in micrometres, as stated by the
Size.Sph.All:j:ODS,MPE
manufacturer.
3.15
maximum permissible length measurement error
E
Bi:j:ODS,MPE
E
Uni:j:ODS,MPE
extreme value of E or E permitted by specifications as maximum permissible error
Bi:j:ODS Uni:j:ODS
3.16
maximum permissible flat form measurement error
E
Form.Pla.D95%:j:ODS,MPE
extreme value of E permitted by specifications as maximum permissible error
Form.Pla.D95%:j:ODS
Note 1 to entry: The maximum permissible flat form measurement error E may be expressed
Form.Pla.D95%:j:ODS,MPE
in one of three forms:
a) E = minimum of (A+L /K) and B, or
Form.Pla.D95%:j:ODS,MPE F
b) E = (A+L /K), or
Form.Pla.D95%:j:ODS,MPE F
c) E = B
Form.Pla.D95%:j:ODS,MPE
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the largest side length of the evaluated plane in millimetres;
P
B is the maximum permissible error E , in micrometres, as stated by the
Form.Pla.D95%:j:ODS,MPE
manufacturer.
3.17
articulated location value
L
Dia.5×25:Art:ODS
diameter of the minimum circumscribed sphere of the centres of all five spheres
Note 1 to entry: Where the location of a test sphere can be determined by a least-squares fit of points, the
measurements being taken with five different articulating angles on the one test sphere located anywhere in the
measuring volume.
8 © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
Note 2 to entry: The symbol “L” in L indicates that it is a location value, the qualifier “Art” identifies
Dia.5 × 25:Art:ODS
the measuring conditions of the CMM and the qualifier “ODS” indicates that it is associated with the optical
distance sensor.
Note 3 to entry: All the symbols used in this annex are listed in Table D.1.
Note 4 to entry: All values are absolute.
3.18
maximum permissible limit of the articulated location value
L
Dia.5×25:Art:ODS,MPL
extreme value of the articulated location value (3.17), L , permitted by specifications,
Dia.5×25:Art:ODS
regulations, etc. for the CMM
Note 1 to entry: The maximum permissible limit of the articulated location value, L , can be
Dia.5 × 25:Art:ODS,MPL
expressed in one of three forms:
a) L = minimum of (A + L /K) and B; or
Dia.5 × 25:Art:ODS,MPL P
b) L = (A + L /K); or
Dia.5 × 25:Art:ODS,MPL P
c) L = B
Dia.5 × 25:Art:ODS,MPL
where
A is a positive constant, expressed in micrometres and supplied by the manufacturer;
K is a dimensionless positive constant supplied by the manufacturer;
L is the distance in 3D between the centres of the reference sphere and the test sphere, in mil-
P
limetres;
B is the maximum permissible limit L , in micrometres, as stated by the
Dia.5 × 25:Art:ODS,MPL
manufacturer.
Note 2 to entry: A maximum permissible limit (MPL) as opposed to a maximum permissible error (MPE)
specification is used when the test measurements are not errors; hence, testing an MPL specification does not
require the use of artefacts with a relevant calibration.
4 Symbols
For the purpose of this International Standard, the symbols of Table 1 apply.
Table 1 — Symbols
Symbol Meaning
P probing form error
Form.Sph.1×25:j:ODS
P probing dispersion value
Form.Sph.D95%:j:ODS
P probing size error
Size.Sph.1×25:j:ODS
P probing size error All
Size.Sph.All:j:ODS
E bidirectional length measurement error
Bi:j:ODS
E unidirectional length measurement error
Uni:j:ODS
E flat form measurement error
Form.Pla.D95%:j:ODS
P maximum permissible probing form error
Form.Sph.1×25:j:ODS,MPE
P
Form.Sph.
maximum permissible limit of probing dispersion value
D95%:j:ODS,MPL
ISO 10360-8:2013(E)
Table 1 (continued)
Symbol Meaning
P maximum permissible probing size error
Size.Sph.1×25:j:ODS,MPE
P maximum permissible probing size error All
Size.Sph.All:j:ODS,MPE
E maximum permissible bidirectional length measurement error
Bi:j:ODS,MPE
E maximum permissible unidirectional length measurement error
Uni:j:ODS,MPE
E
Form.Pla.
maximum permissible flat form measurement error
D95%:j:ODS,MPE
L articulated location value
Dia.5 × 25:Art:ODS
L maximum permissible limit of the articulated location value
Dia.5 × 25:Art:ODS,MPL
The following qualifiers are used in place of j in the definitions above.
translatory; when the sensor is moved by the CMM and measurements are taken at
Tr
several positions
articulating; when the alignment of the sensor is additionally modified by means of an
Art
articulating system
St stationary; when the sensor is not moved by the CMM during measurements
5 Requirements for metrological characteristics
5.1 Environmental conditions
Limits for permissible environmental conditions (such as temperature conditions, air humidity, vibration
and ambient lighting at the site of installation that influences the measurements) shall be specified by:
— the manufacturer, in the case of acceptance tests;
— the user, in the case of reverification tests.
In both cases, the user is free to choose the environmental conditions under which the testing will be
performed within the manufacturer’s specified limits given in the CMM data sheet.
The user is responsible for providing the environment enclosing the CMM as specified by the manufacturer
in the data sheet. If the environment does not meet the specifications, then the maximum permissible
errors cannot be required to be verified.
5.2 Operating conditions
The CMM shall be operated using the procedures given in the manufacturer’s operating manual when
conducting the tests given in Clause 6.
Specific areas in the manufacturer’s manual to be adhered include
a) machine start-up/warm-up cycles,
b) probing system qualification,
c) thermal stability of the probing system before calibration,
d) location, type, number of thermal sensors, and
e) software filter.
NOTE Probing system qualification can include a probe coordinate system setting, a light intensity setting, a
filter configuration setting, and so on.
10 © ISO 2013 – All rights reserved

ISO 10360-8:2013(E)
5.3 Probing form error
The probing form error, P , shall not exceed the maximum permissible probing form
Form.Sph.1×25:j:ODS
error, P , as stated by:
Form.Sph.1×25:j:ODS,MPE
— the manufacturer, in the case of acceptance tests;
— the user, in the case of reverification tests.
The probing form error, P , and the maximum permissible probing form error, P
Form.Sph.1×25:j:ODS Form.
, are expressed in micrometres.
Sph.1×25:j:ODS,MPE
Manufacturers may, at their discretion, specify optionally additional specifications of P
Form.
for special operating conditions.
Sph.1×25:j:ODS,MPE
5.4 Probing dispersion value
The probing dispersion value, P , shall not exceed the maximum permissible limit of
Form.Sph.D95%:j:ODS
probing dispersion value,
P , as stated by:
Form.Sph.D95%:j:ODS,MPL
— the manufacturer, in the case of acceptance tests;
— the user, in the case of reverification tests.
Probing dispersion value, P , and the maximum permissible limit of probing dispersion
Form.Sph.D95%:j:ODS
value, P , are expressed in micrometres.
Form.Sph.D95%:j:ODS,MPL
Manufacturers may, at their discretion, specify optionally additional specifications of P
Form.Sph.
for special operating conditions.
D95%:j:ODS,MPL
5.5 Probing size error
The probing size error, P , shall not exceed the maximum permissible probing size error,
Size.Sph.1×25:j:ODS
P , as stated by:
Size.Sph.1×25:j:ODS,MPE
— the manufacturer, in t
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