DOI: 10.1002/sdtp.16569 ISSN:

27‐3: Deformed Helix Ferroelectric Liquid Crystal Based Threshold‐Less Passive Vibration Sensing System

Xinyi Yu, Zhibo Sun, Zhengnan Yuan, Valerii V. Vashchenko, Abhishek Kumar Srivastava
  • General Medicine

In this article, we proposed a passive vibration sensing system using a threshold‐less deformed helix ferroelectric liquid crystal (DHFLC) cell. Combining the DHFLC cell, piezoelectric film, and optical detector, the system can transform the slight vibration into light intensity signal without a power supply. The system can reach the sensitivity of 165 V/(m/s) and the linearity <1% full range output. The proposed system will be combined with optical fibers to play an essential role in various vibration‐sensing array applications.

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