Demodulator circuit for use with a displacement sensor to provide position information
US5717331A · kind A · utility
3Cited by
23References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Sep 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To allow a displacement sensor to operate independently of changes in the excitation signal to the transducer, a demodulating circuit utilizing a single integrator is provided wherein comparison is made between the excitation signal and a reference signal, the comparison is used to adjust an output generating circuit which generates the output from the transducer. Advantageously, the output generating circuit can provide movement information from output of the transducer which include position, velocity and acceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.