Demodulation Techniques for Self-Oscillating Eddy-Current Displacement Sensor Interfaces: A Review

  title={Demodulation Techniques for Self-Oscillating Eddy-Current Displacement Sensor Interfaces: A Review},
  author={Vikram Chaturvedi and M. R. Nabavi and J. Vogel and S. Nihtianov},
  journal={IEEE Sensors Journal},
  • Vikram Chaturvedi, M. R. Nabavi, +1 author S. Nihtianov
  • Published 2017
  • Engineering
  • IEEE Sensors Journal
  • This paper presents a comprehensive study of demodulation techniques for high-frequency self-oscillating eddy-current displacement sensor (ECDS) interfaces. Increasing the excitation frequency is essential for lowering the skin depth in many demanding industrial applications, that require better resolution. However, a high excitation frequency poses design challenges in the readout electronics, and particularly in the demodulation functional block. We analyze noise, linearity, and stability… CONTINUE READING
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