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Picostrain measurements with piezoelectric transducers

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1 Author(s)
Forward, Robert L. ; Hughes Research Laboratories, 3011 Malibu Canyon Road, Malibu, California 90265

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Piezoelectric ceramic strain transducers are shown to have a linear response to strain down to a strain level of 10-11 (10 picostrain) at a frequency of 20 Hz. For measurement of vibrational resonances, their sensitivity to strain is 50 000 times greater than that obtainable from a comparably sized resistive strain gauge.

Published in:

Journal of Applied Physics  (Volume:51 ,  Issue: 11 )