A SIMPLE PORTABLE SONOMICROMETER

Abstract

The design and construction of a relatively simple and inexpensive ultrasonic dimension gage (sonomicrometer) are described in detail. Two piezoelectric crystals are installed surgically across the organ to be studied, and the transit time for a burst of ultrasound to pass from one crystal to the other is measured. The device is easily calibrated when sound velocity in the medium is known. By use of integrated circuits throughout, it may be duplicated for less than $55. Possible applications other than continuous measurements of organ size are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1966
Accession Number
AD0641571

Entities

People

  • Hubert L. Stone
  • Hugh F. Stegall
  • Merrill B. Kardon

Organizations

  • United States Air Force School of Aerospace Medicine

Tags

Communities of Interest

  • Biomedical
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Aerospace Medicine
  • Circuits
  • Construction
  • Contracts
  • Crystals
  • Diagrams
  • Diameters
  • Frequency
  • Heart
  • Integrated Circuits
  • Materials
  • Measurement
  • Multivibrators
  • Piezoelectric Crystals
  • Piezoelectric Materials
  • Sound Waves
  • Transducers

Readers

  • Geodesy
  • Materials Science and Engineering.
  • Trauma Surgery or Emergency Medicine.