skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
871610
Patent Number(s):
5763283
Application Number:
08/322,119
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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:

Save / Share:

Works referenced in this record:

A surface acoustic wave voltage sensor
journal, January 1983


Surface acoustic wave propagation in a biasing electric field
journal, December 1982


Acoustic Wave Microsensors
journal, November 1993


Multiple-frequency SAW devices for chemical sensing and materials characterization
journal, January 1993


Materials Characterization Using Surface Acoustic Wave Devices
journal, March 1991


Method for quantitative analysis of total polychlorinated biphenyls by capillary GC.
journal, January 1992


Automatic ultrasonic measuring system using phase‐sensitive detection
journal, February 1988


Automated system for relative sound velocity and ultrasonic attenuation measurements
journal, March 1988


Development of humidity correction algorithm for surface acoustic wave sensors
journal, August 1991


Surface acoustic wave probe for chemical analysis. I. Introduction and instrument description
journal, August 1979


Determination of Sound Velocities by High Frequency Complex V ( z ) Measurement in Acoustic Microscopy
journal, January 1992


Surface acoustic wave probes for chemical analysis. II. Gas chromatography detector
journal, August 1979


Weber on Russia
journal, July 1991