Bistable mechanical sensors capable of threshold detection and automatic elimination of excessively high amplitude data
US6327909A · kind A · utility
60Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2001/0063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bistable sensor with a tunable threshold for use in microelectromechanical systems. The sensor uses electrostatic force to modify the threshold and to disable the sensor in a deflected position once a sustained extreme in vibration is detected. Potential applications include mechanical implementations of signature analysis to automatically eliminate large amplitude noise at a specific frequency, shock detection without requiring quiescent DC power consumption, and determination of the magnitude of a shock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.