Capacitive Sensor of Big Linear Displacement

Various types of sensors are used for measuring big linear displacement. We suggest a sensor having a reliable construction and serving for measuring big linear displacement. A capacitive sensor is made of four plane-parallel condensers with series connection, five resistors having the same resistance level connected to the condensers in question, a core moving between the stationary parallel condenser plates and alternating voltage. The output analytical formulas of the sensor are analyzed using MathCad and the sensor features are determined.