Amplifier device for sensors
AssigneeCentre National De La Recherche Scientifique
InventorsPierre Temple-Boyer, Gergard Sarrabayrouse, Augustin Martinez, Jerome Launay
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Abstract
Amplifying device for a sensor (10) delivering a response in voltage or impedance comprising: voltage controlling means (22 connected to output terminals (16, 20) of the sensor to maintain a noticeably constant voltage between the said terminals, at least an additional impedance (12) connected in series with the sensor within a polarisation circuit, between the output terminals (18-16; 18-20) of the said device. Application to temperatures, irradiation levels and pH measurement.
Claims10
An amplifying device for a voltage and/or impedance response sensor including:
- voltage control means (22) connected to the output terminals (16, 20) of the said device to maintain between said terminals a noticeably constant voltage.
- at least one additional impedance (12) series connected with the sensor in a polarisation circuit between output terminals (18-20) of said device.
Dependencies are inferred from the claim text.