Non-quartz resonating transducer
US5142913A · kind A · utility
5Cited by
6References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1990 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Mar 1, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0013
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transducer for measuring a moment force as a related function of pressure and tension where a spirally wound bourdon tube has a confined end arrayed to apply a moment force to pretensioned metal vibratory elements. The change in tension in the pretensioned vibratory elements produces a change in frequency which is related to pressure in the bourdon tube. The vibratory elements are maintained at equally applied tension so that a temperature change changes the frequency of the vibrating elements and can be utilized to correct pressure measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.