Displacement sensors with frequency output based on helical instability

Abstract

This paper describes the possibility of developing linear and angular displacement sensors with frequency output signal based on oscillator effect in n-type germanium. Its advantage is high sensitivity and wide temperature range. Oscillator sensor of angle displacement working on change the angle between electric and magnetic field has the sensitivity 1 kHz/°. Sensitivity of linear displacement sensor is 2.5 kHz/mm in the range of 0-6 mm. The experimental results are presented in the paper.