Ratiometric transducer and method
US5942686A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1994 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Sep 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5614
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Ratiometric transducer and method in which the outputsnal is linearly proportional to the supply voltage or level of excitation. A drive circuit applies a drive signal to an element which undergoes a change in accordance with a condition to be monitored (e.g., rotation or acceleration), and a pickup circuit receives signals from the element and provides an output signal corresponding to the condition to be monitored. Operating voltage is supplied to the drive circuit from a power supply, and the gain of the drive circuit is adjusted in accordance with variations in the operating voltage to make the drive signal and the output signal proportional to the operating voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.