Capacitance transducer
US4386533A · kind A · utility
14Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Jan 26, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/136
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load transducer for sensing longitudinal tension includes a pair of deformable members with spaced-apart central portions, the spacing between which varies as a function of the longitudinal tension applied to the ends of the deformable members. The plates of a variable parallel plate capacitor are carried by insulating supports attached to each of the central portions. Alignment rods maintain the plates in parallel alignment. A circuit produces an output signal with a frequency proportional to the tension sensed by the draft sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.