Acceleration sensor having fault diagnosing device
US5517845A · kind A · utility
12Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/0922
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acceleration sensor includes a piezoelectric element for outputting an electric signal corresponding to acceleration applied thereto, a signal processor for processing a signal outputted from the piezoelectric element, an AC signal outputting device for receiving an externally inputted signal and generating an AC signal which is synchronized with the period of the timing signal in response to receipt of the timing signal and for applying the AC signal to the piezoelectric element, and a capacitor connected between the AC signal outputting device and the piezoelectric element for detecting a fault in the acceleration sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.