Method and apparatus for temperature and pressure compensation of pneumatic manifolds
US5642278A · kind A · utility
16Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 3, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Jan 3, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A simplified method and apparatus for electronic pressure control with compensation for current operating temperature and pressures in which computer memory is employed for storing a plurality of firmware models which characterize the effects of temperature and pressure variations on (1) fluid flow through the flow restrictor, (2) the temperature sensor, and (3) the pressure sensor, so that control signals can be generated which compensate a plurality of thermally coupled sensors for changes in current operating temperatures and pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.