METHOD OF EXTEND OPERATING FREQUENCY RANGE OF SENSORS WITH VOLTAGE OUTPUT
Method of extend the operating frequency range of different sensors of physical characteristic (including acceleration, temperature, magnet field, strain, radiation, shock, optical radiation, electric current, etc.), based on the compensation of the parasitic capacitance of sensor C 0 by using an additional current amplifier and voltage amplifier with a single transfer ratio and correction capacitor C K are considered. Generalized functional diagram of the sensor are shown. Conditions of mutual compensation of capacitance C 0 using ideal additional active elements are obtained. Value of high-frequency cutoff of the modified sensor at various ratios capacitance C K and C 0 are estimates. The results of computer simulation (transient and the amplitude-frequency characteristics of the sensor) are discussed.