High-Pressure Piezoelectric Ceramic Hydrophone for Infrasonic and Audio Frequencies USRD Type H48

Abstract

A pressure-sensitive reference hydrophone for the frequency range 0.3 Hz to 20 kHz at hydrostatic pressure to 68.9 megapascals (10,000 psi) and temperature from 0 to 30C has been developed. The nominal open-circuit crystal sensitivity of the hydrophone is -199 plus or minus 1 dB re 1 V/micropascals from 1 Hz to 20 kHz; the output of the lead zirconate-titanate spherical element is increased by a transistorized, 10-dB-gain preamplifier. A novel cable gland improves the high-pressure reliability of the hydrophone.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1971
Accession Number
AD0721069

Entities

People

  • Larry E. Ivey

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Amplifiers
  • Audio Frequency
  • Ceramic Materials
  • Electroacoustic Transducers
  • Free Field
  • Frequency
  • High Pressure
  • Hydrophones
  • Hydrostatic Pressure
  • Lead Zirconate Titanates
  • Military Research
  • Preamplifiers
  • Sensitivity
  • Titanates
  • Transducers
  • Underwater Sound
  • Zirconates

Readers

  • Acoustical Oceanography.
  • Electrical Engineering
  • Materials Science and Engineering.