Method and apparatus for phase for and amplitude detection

Cernosek, Richard W; Frye, Gregory C; Martin, Stephen J

Title: Method and apparatus for phase for and amplitude detection

Patent · Tue Jun 09 00:00:00 EDT 1998

OSTI ID:871610

Cernosek, Richard W ^[1]; Frye, Gregory C ^[2]; Martin, Stephen J ^[1]

Albuquerque, NM
Cedar Crest, NM

A new class of techniques been developed which allow inexpensive application of SAW-type chemical sensor devices while retaining high sensitivity (ppm) to chemical detection. The new techniques do not require that the sensor be part of an oscillatory circuit, allowing large concentrations of, e.g., chemical vapors in air, to be accurately measured without compromising the capacity to measure trace concentrations. Such devices have numerous potential applications in environmental monitoring, from manufacturing environments to environmental restoration.

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Research Organization:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

DOE Contract Number:: AC04-94DP85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: US 5763283

Application Number:: 08/322,119

OSTI ID:: 871610

Country of Publication:: United States

Language:: English

References (14)

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Smart sensor system for trace organophosphorus and organosulfur vapor detection employing a temperature-controlled array of surface acoustic wave sensors, automated sample preconcentration, and pattern recognition Grate, Jay W.; Rose-Pehrsson, Susan L.; Venezky, David L. Analytical Chemistry, Vol. 65, Issue 14 https://doi.org/10.1021/ac00062a011	journal	July 1993
Surface acoustic wave propagation in a biasing electric field Joshi, S. G. The Journal of the Acoustical Society of America, Vol. 72, Issue 6 https://doi.org/10.1121/1.388672	journal	December 1982
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Title: Method and apparatus for phase for and amplitude detection

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References (14)

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