TWO-WIRE DISPLACEMENT SENSOR DEVICE AND DISPLACEMENT DETECTION SYSTEM

摘要

A two-wire displacement sensor device includes an LC oscillation circuit including a coil whose inductance changes in accordance with a displacement amount of an object and an oscillation unit provided with capacitors and amplifying elements; and an interface unit serving as a signal output unit and a power supply input unit. The interface unit includes a constant current circuit that outputs at least two current values.