Pressure detector using an averaging circuit
US4195531A · kind A · utility
13Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Dec 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure detector comprising a spring-loaded diaphragm mounted in a housing to define a pressure chamber to which test fluid is introduced. A pulse generating element is provided to generate an electrical pulse in response to a displacement of the diaphragm when the fluid pressure in the pressure chamber exceeds a predetermined level. An averaging circuit is connected to the pulse generating element to convert the pulses into a signal having a voltage level representative of the mean value of the pressure variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.