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1. (WO2018219976) STRAIN GAUGE AND METAL STRIP HAVING A STRAIN GAUGE OF THIS KIND

Pub. No.:    WO/2018/219976    International Application No.:    PCT/EP2018/064120
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: G01B 7/16
G01L 1/18
Applicants: VOESTALPINE STAHL GMBH
Inventors: OSSBERGER, Gerald
GSTÖTTENBAUER, Norbert
JAKOBY, Bernhard
HILBER, Wolfgang
SELL, Johannes
ENSER, Herbert
Title: STRAIN GAUGE AND METAL STRIP HAVING A STRAIN GAUGE OF THIS KIND
Abstract:
The invention relates to a strain gauge (1, 100) and a metal strip having a strain gauge of this kind, comprising a first measuring grid (2, 102), comprising a second measuring grid (3, 103) and comprising a substrate (4), on which said two measuring grids (2, 3 and 102, 103) are arranged in a common plane (9). In order to enable a cost-effective strain gauge (1, 100) that also can be compensated in the measurement results in a robust manner in respect of a temperature disturbance variable, it is proposed that the multi-layer substrate (4) has a metal layer (5) and an electrically insulating layer (6), onto which electrically insulating layer (6) said two measuring grids (2, 3, and 102, 103) consisting of a piezoresistive material (10.1, 10.2) are printed.