Servo accelerometer
US5055759A · kind A · utility
7Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Aug 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/132
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A servo accelerometer includes a pendulum, a coil, a detection unit, and a servo unit. The detection unit has a photopotentiometer for receiving light passing through a slit of the pendulum and outputting a detection output on the basis of a change in resistance corresponding to a change in irradiation point. The servo unit has a displacement detection circuit for outputting a difference between a detection output from the photopotentiometer and a set value as a detection displacement amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.