| 摘要 |
The invention is characterized in that it comprises a plurality of impedances (R2, C3, R4, R5) and at least one operational amplifier (51, 52), and means (53) for connecting a resistive sensor (Rs) to the electronic circuit (50) such that, once the resistive sensor has been connected to the electronic circuit, a resulting electronic circuit is obtained that consists of the electronic circuit and the resistive sensor connected thereto, the input impedance (Zinp) of which corresponds to that of a variable capacitance as a function of the resistive sensor (Rs). A capacitative input impedance that can very as a function of a sensor is obtained.
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