Pressure and temperature sensor
US4262532A · kind A · utility
17Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Sep 13, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hybrid sensor for simultaneously sensing pressure and temperature in non-interacting manner, includes an insulative substrate having a temperature-sensitive printed thick film resistor fabricated thereon. A conductive plate is insulatively spaced above the resistor and supported by a pressure-tight insulative barrier. The distributed capacitance between the plate and the resistive pattern is a function of the pressure applied to the exterior face of the plate, while the resistance of the resistive thick film is a function of temperature of the surrounding environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.