Frequency Output Pressure Sensors Based on an Application of Surface Acoustic Wave Technology

760093

02/01/1976

Event
1976 Automotive Engineering Congress and Exposition
Authors Abstract
Content
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. The high precision, digital compatibility, and mass producible integrated circuit form of these sensors makes them potentially very attractive for automotive applications.
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DOI
https://doi.org/10.4271/760093
Pages
9
Citation
Reeder, T., Cullen, D., and Sauder, O., "Frequency Output Pressure Sensors Based on an Application of Surface Acoustic Wave Technology," SAE Technical Paper 760093, 1976, https://doi.org/10.4271/760093.
Additional Details
Publisher
Published
Feb 1, 1976
Product Code
760093
Content Type
Technical Paper
Language
English