Wide Range Supersonic Projector for Calibration Work

Abstract

The 6B crystal projector is an underwater sound projector designed primarily for short range testing work. Sound pressures are radiated from diaphragm, which is driven by an array of ninety-six 45 deg Y-cut Rochelle salt crystals connected in parallel mounted between diaphragm and steel backing plate. It can be used from below 5 kilocycles to above 100 kilocycles per second, the most useful range being from 10 to 80 kilocycles. Projector may also be used as a hydrophone.

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Document Details

Document Type
Technical Report
Publication Date
Aug 10, 1944
Accession Number
ADB805068

Entities

People

  • Reginald L. Jones

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Assembly
  • Calibration
  • Capacitance
  • Espionage
  • Frequency
  • Frequency Response
  • Impedance
  • Language
  • Measurement
  • National Security
  • Ordnance Laboratories
  • Piezoelectric Crystals
  • Power Levels
  • Sound Pressure
  • Standards
  • Underwater Sound
  • United States

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Fluid Dynamics.
  • Materials Science and Engineering.

Technology Areas

  • Hypersonics