Effect of high hydrostatic pressure on the sensitivity of piezoelectric acoustic emission sensors

J. Jemielniak; P. Witczak; Z. Witczak

doi:10.1117/12.266691

13 February 1997 Effect of high hydrostatic pressure on the sensitivity of piezoelectric acoustic emission sensors

J. Jemielniak, P. Witczak, Z. Witczak

Proceedings Volume 3054, Optoelectronic and Electronic Sensors II; (1997) https://doi.org/10.1117/12.266691
Event: Optoelectronic and Electronic Sensors II, 1996, Szczyrk, Poland

Abstract

The sensitivity of some resonant and broadband acoustic emission (AE) sensors made of piezoelectric monocrystalline quartz and lithium niobate was investigated under hydrostatic pressures ranging from atmospheric to 1 GPa. Ultrasonic pulses of the 500 kHz frequency generated by an impulse laser were used as the standard AE signals. It was established that the sensitivity of all tested sensors was decreasing with pressure. When measured in dBs the sensitivity of each sensor can be described with a linear function of pressure.

Citation Download Citation

J. Jemielniak, P. Witczak, and Z. Witczak "Effect of high hydrostatic pressure on the sensitivity of piezoelectric acoustic emission sensors", Proc. SPIE 3054, Optoelectronic and Electronic Sensors II, (13 February 1997); https://doi.org/10.1117/12.266691

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