Nested, Meander Shaped Strain Gauges for Temperature Compensated Strain Measurement
Sprache des Vortragstitels:
Englisch
Original Tagungtitel:
IEEE Sensors 2017
Sprache des Tagungstitel:
Englisch
Original Kurzfassung:
In recent years, the implementation of printed
strain gauges as cost-effective alternatives to conventional glued
strain gauges was investigated. Printed strain gauges are, in
general, not temperature compensated due to the lacking
availability of appropriate materials. Their accuracy (and
applicability) therefore is strongly affected by temperature drifts.
In this contribution, we propose a concept for temperature
compensated strain measurement with printed strain gauges
based on two nested, meander shaped strain gauges consisting of
different materials. Due to the proximity of the sensors, they are
both affected by the same strain and the same local temperature.
It is shown that, by measurement of the resistance of both strain
gauges, the strain applied to the strain gauges can accurately be
determined even if the sensors are subject to temperature
fluctuations.
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