Wearable electronic devices and technologies - Part 401-1: Devices and systems: functional elements - Evaluation method of the stretchable resistive strain sensor

IEC 63203-401-1:2023 specifies a measurement method of tensile strain for stretchable, resistive strain sensors. This document describes characterization procedures for evaluation of the gauge factor, linearity, response characteristics, and hysteresis of unimodal tension sensors but is not appropriate for assessment of the physical properties of the sensor material such as the elastic modulus, elastic limit, and Poisson's ratio.

Technologies et dispositifs électroniques prêt-à-porter - Partie 401-1 : Dispositifs et systèmes: éléments de fonctionnement – Méthode d’évaluation de la jauge de contrainte extensible de type résistif

L’IEC 63203-401-1:2023 spécifie une méthode de mesure de la contrainte de traction pour les jauges de contrainte extensible de type résistif. Le présent document décrit les procédures de caractérisation pour l’évaluation du coefficient de traction, de la linéarité, des caractéristiques de réponse et de l’hystérésis des jauges de tension unimodales. Toutefois, il n’est pas adéquat pour l’évaluation des propriétés physiques des matériaux de la jauge, tels que le module d’élasticité, la limite d’élasticité et le coefficient de Poisson.

General Information

Status
Published
Publication Date
08-Oct-2023
Current Stage
PPUB - Publication issued
Start Date
20-Oct-2023
Completion Date
09-Oct-2023
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IEC 63203-401-1:2023 - Wearable electronic devices and technologies - Part 401-1: Devices and systems: functional elements - Evaluation method of the stretchable resistive strain sensor Released:9. 10. 2023
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IEC 63203-401-1 ®
Edition 1.0 2023-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Wearable electronic devices and technologies –
Part 401-1: Devices and systems: functional elements – Evaluation method of
the stretchable resistive strain sensor

Technologies et dispositifs électroniques prêt-à-porter –
Partie 401-1: Dispositifs et systèmes: éléments de fonctionnement – Méthode
d’évaluation de la jauge de contrainte extensible de type résistif
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IEC 63203-401-1 ®
Edition 1.0 2023-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Wearable electronic devices and technologies –

Part 401-1: Devices and systems: functional elements – Evaluation method of

the stretchable resistive strain sensor

Technologies et dispositifs électroniques prêt-à-porter –

Partie 401-1: Dispositifs et systèmes: éléments de fonctionnement – Méthode

d’évaluation de la jauge de contrainte extensible de type résistif

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.020  ISBN 978-2-8322-7558-0

– 2 – IEC 63203-401-1:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 Terms and definitions . 6
3.2 Symbols and abbreviated terms . 7
4 Test environments . 7
5 Test specimen . 8
5.1 Shape of the test specimen of the stretchable strain sensor . 8
5.2 Measurement of dimensions . 8
6 Test method and test apparatus . 9
6.1 General . 9
6.2 Test apparatus and measurement . 9
7 Test procedure . 13
8 Measurement of sensor performance and endurance . 13
8.1 Gauge factor . 13
8.1.1 General . 13
8.1.2 Purpose . 13
8.1.3 Test procedure . 14
8.2 Linearity . 14
8.2.1 Purpose . 14
8.2.2 Test procedure . 14
8.3 Response characteristics . 14
8.3.1 General . 14
8.3.2 Purpose . 15
8.3.3 Test procedure . 15
8.4 Hysteresis . 15
8.4.1 General . 15
8.4.2 Purpose . 15
8.4.3 Test procedure . 15
9 Test report . 16
Annex A (informative) Strain sensor resistance measurement . 17
Annex B (informative) Effects of strain rate on performances of the stretchable strain
sensor . 18
Annex C (informative) Measurement of response time of the stretchable strain sensor . 19
Annex D (normative) Examples of hysteresis calculations . 20
Bibliography . 22

Figure 1 – Shape of a test specimen of the stretchable strain sensor . 8
Figure 2 – Example of stretching test machine . 9
Figure 3 – Schematic drawing of a stretching test machine and two-wire measurement
method . 10
Figure 4 – Schematic drawing of a stretching test machine and four-wire measurement
method . 12
Figure 5 – Linearity measurement of the stretchable strain sensor . 14

Figure A.1 – Changes in electrical resistances when the strain sensor is stretched . 17
Figure B.1 – Examples of the effects of strain rate on performances of the stretchable
strain sensor . 18
Figure C.1 – Examples of the response time of the stretchable strain sensors . 19
Figure D.1 – Example of the hysteresis behaviour of a stretchable strain sensor . 20
Figure D.2 – Example calculation of hysteresis behaviour . 20
Figure D.3 – Calculation of hysteresis behaviour of the stretchable strain sensor . 21
Figure D.4 – Example of calculation of the degree of hysteresis . 21

– 4 – IEC 63203-401-1:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WEARABLE ELECTRONIC DEVICES AND TECHNOLOGIES –

Part 401-1: Devices and systems: functional elements –
Evaluation method of the stretchable resistive strain sensor

FOREWORD
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