Vibration wave detecting method and vibration wave detector
US6079274A · kind A · utility
20Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H1/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibration wave detector in which: a plurality of resonator beams, each having a different length and being allowed to resonate at a specific frequency, are provided; a piezoresistor is installed in each resonator beam; and the piezoresistors are parallel-connected so that vibration is converted to an electric signal by the piezoresistors so as to output the sum of vibration waveforms at the respective resonator beams. It is possible to control a gain of a specific frequency band by changing a voltage to be applied to the parallel circuit or changing the resistance value of each piezoresistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.