Design and Development of planar inductor based proximity sensor operating down to 4.2K​

The design, development and testing of a multilayer planar inductor based eddy current proximity/displacement transducer was done for cryogenic application. Proximity/displacement of a metal surface/target in the range of 0-5 mm was measured. The cold electronics based LC oscillator operating at 4.2 K using stable thermal cycled components was used. A Data Acquisition System (DAQ) was developed for measuring the frequency output of the sensor at different constant temperatures down to liquid helium temperatures.

List of publications related to this work

  • Sagar, Pankaj, Abhay Singh Gour, and R. Karunanithi. “A multilayer planar inductor based proximity sensor operating at 4.2 K.” Sensors and Actuators A: Physical 264 (2017): 151-156 (10.1016/j.sna.2017.07.042)