Force sensor
US4286459A · kind A · utility
7Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Positive feedback is utilized with a flexible piezoelectric strip that is stretched in tension to cause the strip to oscillate at a frequency which is determined by the magnitude of the force stretching the flexible strip. Since the oscillation frequency can readily be measured, the strip is utilized as a device for measuring tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.