Abstract
A strain-gage signal-conditioning scheme, which appears to be innovative, has been proposed. It is based on a potentiometric circuit with twin constant-current supplies. From the experimental tests carried out on our prototype, the following have been highlighted: a satisfying sensitivity (≅ 1 μm m-1), a calibration curve that might be considered linear (non-linearity error less than 1 μm m-1), low values of zero-shift (<1 μm m-1) throughout 60 hour test, and, finally, a global temperature coefficient that can be considered negligible (0.1 μm m-1 °C-1).
| Original language | English |
|---|---|
| Pages (from-to) | 173-178 |
| Number of pages | 6 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 55 |
| Issue number | 2-3 |
| Publication status | Published - Jul 31 1996 |
Keywords
- Constant-current method
- Signal conditioning
- Strain gages
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
- Instrumentation