A new approach to strain gauge selection in outdoor stress analysis

C. Francesco, R. Giannetti

14th IEEE Instrumentation and Measurement Technology Conference - IMTC 1997, Ottawa (Canada). 19-21 mayo 1997

Summary:
Since from 50's, strain gauge measurement systems were largely employed for stress analysis, in laboratory and field testing. During all these years, electronic devices used for signal management were quite cumbersome and heavy. So strain gauge analysis was optimized for long term tests in "static" condition, without particular limits in terms of current or voltage. Considering short term field tests, carried out by light-weight portable measurement system, some of the "common" assumption about strain gauge selection criteria are wrong. Here we discuss a new approach to strain gauges selection for field test, and we show the system improvements obtained following these criteria.

Keywords: Capacitive sensors, Strain measurement, Bridge circuits, Impedance, Voltage, Stress measurement, System testing, Electrical resistance measurement, Wire, Equations

DOI: 10.1109/IMTC.1997.612370

Publication date: May 1997.

Citation:
Francesco, C., Giannetti, R., A new approach to strain gauge selection in outdoor stress analysis, 14th IEEE Instrumentation and Measurement Technology Conference - IMTC 1997, Ottawa (Canada). 19-21 May 1997.

IIT-97-079A