Static and dynamic calibration of quartz pressure transducers
US6823711B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for dynamically calibrating signals from a quartz pressure sensor to correct for temperature transients. A series of differences of time spaced temperature readings is stored in a tapped delay line and coupled to a transfer function. The transfer function uses the temperature difference values to correct pressure frequency readings for temperature transient errors. In one form, one transfer function uses temperature and pressure readings to statically calibrate pressure readings and a second transfer function uses temperature differences to provide a temperature transient correction which is added to the statically calibrated pressure value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.