Lithium Niobate Based Piezoelectric Transducer
Strain gauges indicate the strain of a structure and convert it into electrical signal. Current electrical strain gauges are vulnerable to electromagnetic noise and require off-set circuitry for temperature fluctuations. Lithium Niobate (LN) is a piezoelectric crystal used extensively in high speed optical communication devices like optical modulators. In this work, we have fabricated and demonstrated a piezoelectric transducer with LN sensing element, for measuring dynamic strains and vibrations. This work can be implemented in high speed dynamic vibration measurements, merging electrical and optical signals for higher sensitivity in noisy environments.
Keywords- Lithium Niobate, Piezoelectric, Transducer, Strain Gauge.