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U.S. Department of Energy
Office of Scientific and Technical Information

Method and apparatus for phase and amplitude detection

Patent ·
OSTI ID:672544
A new class of techniques has 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. 12 figs.
Sponsoring Organization:
USDOE, Washington, DC (United States)
Assignee:
Sandia Corp., Albuquerque, NM (United States)
Patent Number(s):
US 5,763,283/A/
Application Number:
PAN: 8-322,119
OSTI ID:
672544
Country of Publication:
United States
Language:
English