Surface acoustic wave harmonic analysis

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

73 2406, 324 7619, 324 7623, 324 7624, G01N 3000, G01R 23167

Patent

active

060443324

ABSTRACT:
A method for sensing and analyzing data with surface acoustic wave (SAW) devices comprises the steps of: propagating a sampling signal at a fundamental frequency through a SAW device coated for selective adsorption; measuring at least one parameter of at least one higher order harmonic of the fundamental frequency sampling signal; exposing the coated SAW device to enable the selective adsorption; measuring the at least one parameter of the at least one higher order harmonic of the fundamental frequency sampling signal after the exposing step; comparing the measurements of the at least one parameter of the at least one higher order harmonic before and after the exposing step; and, deriving a result of the selective adsorption based upon the comparing step. The at least one parameter is harmonic power and harmonic frequency. The at least one higher order harmonic is one or more odd harmonics.

REFERENCES:
patent: 4312228 (1982-01-01), Wohltjen
patent: 4726225 (1988-02-01), Brace et al.
patent: 4895017 (1990-01-01), Pyke et al.
patent: 4947677 (1990-08-01), Frye et al.
patent: 5076094 (1991-12-01), Frye et al.
patent: 5508661 (1996-04-01), Keane et al.
patent: 5736845 (1998-04-01), Kosuge
M.S. Nieuwenhuizen and J.L.N. Harteveld, "A Surface Acoustic Wave Gas Sensor: Detection of Organophosphorus Compounds," Sensors and Actuators B 18-19 (1994) 502-505.
Corrine Dejous, et al., "A Surface Acoustic Wave Gas Sensor: Detection of Organophosphorus Compounds," Sensors and Actuators B 24-25 (1995) 58-61.
R.S. Falconer, A Versatile SAW-Based Sensor System for Investigating Gas-Sensitive Coatings, Sensors and Actuators B24-25 (1995) 54-57.
S. Rose Pehrsson, et al., "Detection of Hazardous Vapors Including Mixtures Using Pattern Recognition Analysis of Responses from Surface Acoustic Wave Devices," Analytical Chemistry, vol. 60, No. 24, 1988.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Surface acoustic wave harmonic analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface acoustic wave harmonic analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface acoustic wave harmonic analysis will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1334597

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.