Dual accelerometer, method for its fabrication and application thereof
US4586377A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Feb 21, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02827
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The accelerometer comprising two piezoelectric transducers. A common outer seismic mass acts on both transducers and an additional seismic mass acts only on the inner transducer. The sensitivity of the two transducers and the inertial forces acting thereof are so selected that the two transducers, under the action of an acceleration force, each deliver equal output signals. Both seismic masses are accessible for being tuned, in their assembled condition, prior to being mounted in a housing of the accelerometer. The accelerometer requires less material, is of small volume and lightweight, and is particularly suitable for being mounted in aircraft engines. It is also easy to manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.