TITLE

Piezoelectric accelerometers for ultrahigh temperature application

AUTHOR(S)
Shujun Zhang; Xiaoning Jiang; Lapsley, Michael; Moses, Paul; Shrout, Thomas R.
PUB. DATE
January 2010
SOURCE
Applied Physics Letters;1/4/2010, Vol. 96 Issue 1, p013506
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
High temperature sensors are of major importance to aerospace and energy related industries. In this letter, a high temperature monolithic compression-mode piezoelectric accelerometer was fabricated using YCa4O(BO3)3 (YCOB) single crystals. The performance of the sensor was tested as function of temperature up to 1000 °C and over a frequency range of 100–600 Hz. The accelerometer prototype was found to possess sensitivity of 2.4±0.4 pC/g, across the measured temperature and frequency range, indicating a low temperature coefficient. Furthermore, the sensor exhibited good stability over an extended dwell time at 900 °C, demonstrating that YCOB piezoelectric accelerometers are promising candidates for high temperature sensing applications.
ACCESSION #
47416452

 

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