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Proceedings Paper

Effect of high hydrostatic pressure on the sensitivity of piezoelectric acoustic emission sensors
Author(s): J. Jemielniak; P. Witczak; Z. Witczak
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Paper 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.

Paper Details

Date Published: 13 February 1997
PDF: 4 pages
Proc. SPIE 3054, Optoelectronic and Electronic Sensors II, (13 February 1997); doi: 10.1117/12.266691
Show Author Affiliations
J. Jemielniak, High Pressure Research Ctr. (Poland)
P. Witczak, High Pressure Research Ctr. (Poland)
Z. Witczak, High Pressure Research Ctr. (Poland)


Published in SPIE Proceedings Vol. 3054:
Optoelectronic and Electronic Sensors II
Zdzislaw Jankiewicz; Henryk Madura, Editor(s)

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