Omnidirectional Low Noise Piezoelectric Transducer.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent describes a piezoelectric ceramic transducer assembly for broadband noise-measuring hydrophone. A longitudinally polarized lead zirconate-titanate cylinder provided with end caps is sealed by O-rings within a circumferentially polarized lead zirconate-titanate cylinder providing high sensitivity, smooth response, omnidirectionality, and stability with temperature and hydrostatic pressure variations.
- Electrical and Electronic Equipment
- Acoustic Detection and Detectors