ISO 21612:2021

INTERNATIONAL ISO
STANDARD 21612
First edition
2021-02
Road vehicles — Crosstalk
determination for multi-axis load cell
Véhicules routiers — Détermination de l’effet transverse sur capteur
de force multi axial
Reference number
©
ISO 2021
© ISO 2021
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ii © ISO 2021 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Field of application . 1
5 Crosstalk determination . 1
5.1 Test setup requirements and general preconditions . 1
5.2 Additional test information . 2
5.3 Crosstalk determination . 2
5.4 Data record . 3
Annex A (informative) Workflow diagram crosstalk determination . 5
Bibliography . 6
Foreword
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iv © ISO 2021 – All rights reserved

INTERNATIONAL STANDARD ISO 21612:2021(E)
Road vehicles — Crosstalk determination for multi-axis
load cell
1 Scope
This document establishes an adequate procedure to determine crosstalk values in order to improve
comparability of measurement results between testing laboratories and to enable a load cell
performance rating in accordance to the crosstalk specification for transducers in vehicle crash testing
given in ISO 6487, SAE-J211-1 and SAE J2570.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
crosstalk
undesired measured output of a transverse channel under defined load on the calibrated axis
Note 1 to entry: Crosstalk is alternatively known as transverse or cross sensitivity.
4 Field of application
The described measurement procedure refers to any multi-axis load cell.
The crosstalk value helps to check the transducer’s performance and to identify sources of error during
the calibration process. Therefore, it is recommended to determine the load cell’s crosstalk value
during the calibration. It could be an indicator for a wrong test setup (loading point, fixtures, channel
allocation, overloading, etc.).
5 Crosstalk determination
5.1 Test setup requirements and general preconditions
Prior to determination of crosstalk values, the conditions as follows need to be maintained.
— The load cell calibration test setup follows the common standards for vehicle crash transducers for
forces and moments.
— The crosstalk value is only considered for the traceable calibration range,
...