The demodulation circuit is suitable for LVDT displacement sensors of three-wire system and six-wire system

The utility model discloses a demodulation circuit suitable for three-wire system and six-wire system LVDT displacement sensors, which is characterized in that the demodulation circuit comprises an adjusting circuit, a first signal processing circuit, a second signal processing circuit and a compensation circuit, the adjusting circuit is connected with the input end of an excitation coil, and theinput end of the excitation coil is connected with the first signal processing circuit; the input end of the secondary coil is connected with the second signal processing circuit, the first signal processing circuit is connected with the pin 3 of the third chip U3, the second processing circuit is connected with the pin 5 of the third chip U3, the pin 1 of the third chip U3 is connected with the compensation circuit, and the compensation circuit outputs signals through the direct current output circuit. The demodulation circuit has the beneficial effects that the demodulation circuit is compatible with LVDT displaceme