Centrifugal type acceleration measuring device
US5353642A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1992 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P21/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acceleration measuring system wherein acceleration transducers are mounted on a turntable supported by an air bearing and directly driven by a brushless motor. The output signals generated by the acceleration transducers are amplified by amplifiers mounted on the turntable and the output signals are converted to digital signals by an analog-to-digital converter also mounted on the turntable. The digital signals are modulated into AC signals by a modulator also mounted on the table and then transmitted to a demodulator on a fixed portion of the system through a rotary transformer. The output of the demodulator representing the acceleration signal is applied to digital-to-analog converters and also to a binary coded decimal converter. In an alternative embodiment, the acceleration transducers are mounted on individual separate turntables which in turn are mounted on a primary turntable. The individual turntables are each separately and individually driven by brushless motors and the primary turntable is also directly driven by a brushless motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.