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Title: Method and apparatus for phase for and amplitude detection

Abstract

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.

Inventors:
 [1];  [2];  [1]
  1. (Albuquerque, NM)
  2. (Cedar Crest, NM)
Publication Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
871610
Patent Number(s):
US 5763283
Application Number:
08/322,119
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94DP85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; phase; amplitude; detection; techniques; developed; allow; inexpensive; application; saw-type; chemical; sensor; devices; retaining; sensitivity; ppm; require; oscillatory; circuit; allowing; concentrations; vapors; air; accurately; measured; compromising; capacity; measure; trace; numerous; potential; applications; environmental; monitoring; manufacturing; environments; restoration; sensor devices; trace concentrations; chemical sensor; chemical vapor; accurately measure; accurately measured; chemical detection; sensor device; chemical vapors; environmental monitoring; trace concentration; type chemical; manufacturing environment; /436/73/422/

Citation Formats

Cernosek, Richard W., Frye, Gregory C., and Martin, Stephen J. Method and apparatus for phase for and amplitude detection. United States: N. p., 1998. Web.
Cernosek, Richard W., Frye, Gregory C., & Martin, Stephen J. Method and apparatus for phase for and amplitude detection. United States.
Cernosek, Richard W., Frye, Gregory C., and Martin, Stephen J. Tue . "Method and apparatus for phase for and amplitude detection". United States. https://www.osti.gov/servlets/purl/871610.
@article{osti_871610,
title = {Method and apparatus for phase for and amplitude detection},
author = {Cernosek, Richard W. and Frye, Gregory C. and Martin, Stephen J.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {6}
}

Patent:

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