Method for determining acceleration
US4467651A · kind A · utility
36Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1983 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Jan 6, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An accelerometer has two proof masses each constrained from movement by a beam resonant force transducer. The proof mass-force transducer systems are mounted with the sensitive axes of the proof masses aligned and the force transducers arranged so that their resonant frequencies f.sub.1 and f.sub.2 vary oppositely with a change in acceleration. The acceleration is determined in accordance with the relation EQU a=A.sub.1 f.sub.1 -A.sub.2 f.sub.3 +A.sub.0 or EQU a=A.sub.1 f.sub.1.sup.2 -A.sub.2 f.sub.2.sup.2 +A.sub.0 where a is the acceleration and A.sub.1, A.sub.2 and A.sub.0 are calibration coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.