ISO/TS 17242:2014/Amd 1:2017

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Status
Published
Publication Date
24-Apr-2017
Current Stage
6060 - International Standard published
Start Date
16-Mar-2017
Completion Date
25-Apr-2017
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ISO/TS 17242:2014/Amd 1:2017
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TECHNICAL ISO/TS
SPECIFICATION 17242
First edition
2014-05-01
AMENDMENT 1
2017-04
Quasi-static calibration procedure for
belt force transducers
AMENDMENT 1
Procédure d’étalonnage quasi-statique pour capteurs d’efforts pour
ceintures
AMENDEMENT 1
Reference number
ISO/TS 17242:2014/Amd.1:2017(E)
ISO 2017
---------------------- Page: 1 ----------------------
ISO/TS 17242:2014/Amd.1:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

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copyright@iso.org
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ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 17242:2014/Amd.1:2017(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 (see 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 (see 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 voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: w w w . i s o .org/ iso/ foreword .html.

Amendment 1 to ISO/TS 17242:2014 was prepared by Technical Committee ISO/TC 22, Road vehicles,

Subcommittee SC 36, Safety and impact tests.
© ISO 2017 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/TS 17242:2014/Amd.1:2017(E)
Quasi-static calibration procedure for belt force
transducers
AMENDMENT 1
5.2
Replace the first sentence with the following:

The sensor offset should be measured under no load condition. A new belt strap shall be inserted and

mounted in the fixture .
5.3
Replace the third sentence with the following:

Only one loading sequence with one belt strap per test transducer up to a force level at least at 100 % of

the transducer’s calibration range shall be performed within the given velocity range.

5.6
Replace the last item of the list with the following:

— non-linearity as a percentage in % of the transducer’s calibration range (for linear regression only).

Annex B
Replace the entire Annex B with the following:
Annex B
(normative)
Evaluation method
B.1 Linear regression

For the software linearization a least-squares fit method applied through the point of origin is used:

The starting point of the linearized line is identical with the starting point of the measurement. This

point is set to zero (point of origin). This measurement is independent of the defined evaluation interval

(see 4.7). The resulting linear equation is
Fb=−()SS +D (B.1)
ii 0
where
S = 0;
D = 0.
© ISO 2017 – All rights reserved 1
---------------------- Page: 4 ----------------------
ISO/TS 17242:2014/Amd.1:2017(E)

For the linearization, the square sum of the difference between measured value and linearized value

must be minimal:
 
σ =−Fb SS− + D (B.2)
() )
∑ (
ii 0
i=1 
 
where S , F = measured.
i i
The differentiation is equa
...

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