Accelerometer using radioactive pickoff
US3992953A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1974 |
| Grant date | Nov 23, 1976 |
| Priority date | — |
| Expiry date | Dec 24, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A precision accelerometer is provided which is capable of measuring linear accelerations along three axes. The accelerometer incorporates a self-charging radioactive particle as the inertial acceleration sensing mass. The particle is contained in an evacuated cubical chamber, and the position of the particle within the chamber is established by the differential between the mean number of emitted charged particles detected at the opposite walls of the chamber, whenever the particle moves from a central position within the chamber. The accelerometer includes an electronic control system which generates feedback signals that tend to maintain the particle centered within the chamber in the presence of accelerations, and at the same time to provide electrical outputs which are measurements of the accelerations along the three coordinate axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.