Pressure transducer with quartz crystal of singly rotated cut for increased pressure and temperature operating range
US5221873A · kind A · utility
16Cited by
39References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Jan 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transducer comprises a quartz crystal having an orientation within a range of angles between about -25.degree. and about -45.degree. relative to the Z axis of X, Y and Z crystallographic axes. Such a pressure transducer provides a useful pressure response at pressures and temperatures above those of the operating ranges of pressure transducers using AT-cut or BT-cut quartz crystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.