Strain gauges for the pressure sensor
US4876893A · kind A · utility
18Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Dec 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/2287
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to improve the stabilization and the heat-resistance of a strain gauge, the strain gauge is made of an amorphous alloy including Ni (nickel), Cr (Chromium) and Si (silicon). The amorphous alloy including Ni, Cr and Si has a high crystallization point, its temperature co-efficient of resistance is almost zero obtained by annealing. The amorphous alloy is stabilized from low to high temperatures and thus can be used from low to high temperatures without compensation. The amorphous alloy is a non-magnetic substance and the strain gauge thus is not substantially affected by external electromagnetic noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.