Amplifier device for sensors
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 7, 2006
Grant Date -
Aug 7, 2003
app pub date -
Mar 2, 2001
filing date -
Mar 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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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.
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