sensor drive system for displacement measurement device , and there used to be a proximity sensor

摘要

displacement measurement device , and there is a proximity sensor that is used in the sense of drive system is disclosed. One embodiment of the displacement measuring device of the sensor drive system in accordance with the subject innovation , the sector of the metallic plate ; The first coil and the first core is formed , and is integrated , the displacement signal generating portion provided at the rotor ; A power supply for applying an AC signal to the displacement signal generator ; And based on the displacement signal generating unit inductance is changed by an alternating current signal to be applied by the power supply unit comprises a distance measurement for measuring the distance between the sector plate and the rotor . Thereby , 260 ~ 350 -up of the high-temperature measurement of the distance is possible to be in the environment , as well as , to improve the operation reliability , it is possible to quickly cope with the failure of a sudden . ;