FREQUENCY OUTPUT PRESSURE SENSORS BASED ON AN APPLICATION OF SURFACE ACOUSTIC WAVE TECHNOLOGY

A new type of frequency output pressure sensor is described which utilizes a novel application of Surface Acoustic Wave (SAW) technology. Variations in SAW velocity over a miniature pressure dependent diaphragm are used to control the frequency of an electronic feedback oscillator. Prototype SAW pressure sensors have been built which provide a frequency output that varies almost linearly with applied pressure and is accurate to better than 0.2 percent of full scale.

• Supplemental Notes:
  • From: Sensors for electronic systems, 51-59, 1976. (SAE SP-404).
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Cullen, D E
  • Sauder, OAJ
• Publication Date: 1976

Media Info

• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Electronic equipment; Feedback control; Frequency (Electromagnetism); Oscillation; Pressure gages; Rayleigh waves; Sound; Sound
• Old TRIS Terms: Electronic devices; Pressure sensors
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00139972
• Record Type: Publication
• Report/Paper Numbers: SAE #760093
• Files: TRIS
• Created Date: Oct 6 1976 12:00AM