Amplifier device for sensors
US7009184B2 · kind B2 · utility
1Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Mar 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An amplifying device for a sensor (10) delivering a response in voltage or impedance has a voltage controlling means for the sensor and at least an additional impedance (12). The voltage controlling means (22) is connected to output terminals (16, 20) of the sensor to maintain a noticeably constant voltage between the terminals. The additional impedance (12) is connected in series with the sensor within a polarization circuit, between the output terminals (18–16; 18–20) of the device. The amplifying device may be applied to temperatures, irradiation levels and pH measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.