Accelerometer
US4083254A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1977 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | May 5, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present accelerometer uses the total light reflection of a prism for suring an acceleration force by disturbing such total reflection in accordance with the displacement or deflection of a body located close to a boundary surface of said prism, and responsive to the movement of an inertia mass which in turn responds to the acceleration force. The reflected light is measured by a photosensitive device and the resulting electrical signal is a direct measure for the size of the acceleration force. In order to make the measuring of the acceleration force independent of variations in the intensity of the light emitted by a light source used as part of the accelerometer, a reference signal may also be produced to form a quotient of the measured signal and the reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.