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Title: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno

A disclosed chemical detection system for detecting a target material, such as an explosive material, can include a cantilevered probe, a probe heater coupled to the cantilevered probe, and a piezoelectric element disposed on the cantilevered probe. The piezoelectric element can be configured as a detector and/or an actuator. Detection can include, for example, detecting a movement of the cantilevered probe or a property of the cantilevered probe. The movement or a change in the property of the cantilevered probe can occur, for example, by adsorption of the target material, desorption of the target material, reaction of the target material and/or phase change of the target material. Examples of detectable movements and properties include temperature shifts, impedance shifts, and resonant frequency shifts of the cantilevered probe. The overall chemical detection system can be incorporated, for example, into a handheld explosive material detection system.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1369071
Assignee:
ORNL
Patent Number(s):
9,702,861
Application Number:
14/643,641
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2015 Mar 10
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Method and apparatus for calorimetric differential thermal analysis
patent, September 1982

Scanning thermal profiler
patent, May 1988

Sensor
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Cantilever type probe, scanning tunneling microscope and information processing device equipped with said probe
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Optical and electrical methods and apparatus for molecule detection
patent, August 1997

Microcantilever sensor
patent, February 1998

Non-contact passive temperature measuring system and method of operation using micro-mechanical sensors
patent, April 2000

Micromechanical calorimetric sensor
patent, August 2000

Cantilevered probe detector with piezoelectric element
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Cantilevered probe detector with piezoelectric element
patent, July 2012

Cantilevered probe detector with piezoelectric element
patent, April 2013

Cantilevered probe detector with piezoelectric element
patent, April 2014

Detection of defects by thermographic analysis
patent-application, November 2002

Apparatus and method for detecting microorganisms
patent-application, September 2003

Chemical sensors utilizing conducting polymer compositions
patent-application, March 2004

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