The capacitive gate transducer has several kinds of excitingvoltage forms that affect its performances greatly. But this problem is investigated little.
容栅传感器激励电压形式有若干种，对性能指标有较大影响，但人们对此很少研究。
2
Therefor, it is suggested that a resistor or a capacitor be connected with the relay in parallel to lower the excitingvoltage at both ends of the output relay.
Experiment results showed that the relation between excitingvoltage and induced velocity magnitude was linear, but the influence of supply frequency was not evident.