Method for adjusting sensitivity of acceleration sensor
US6474134B1 · kind B1 · utility
5Cited by
13References
22Claims
0Family size
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Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a method for adjusting the sensitivity of an acceleration detecting device comprising a pair of piezoelectric elements, of an acceleration sensor device for detecting an externally acting acceleration. According to this method, electric charges produced in the pair of piezoelectric elements placed at positions being symmetric with respect to a weight are made to be equal to each other. The electric outputs of the piezoelectric elements are changed by varying the electrostatic capacity of the acceleration sensor device. Thus, noise sensitivity is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.