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Title: Explosive Vapor Detection Using Microcantilever Sensors

Abstract

MEMS-based microcantilever platforms have been used to develop extremely sensitive explosive vapour sensors. Two unique approaches of detecting of explosive vapours are demonstrated. In the first approach a cantilever beam coated with a selective layer undergoes bending and resonance frequency variation due to explosive vapour adsorption. The resonance frequency variation is due to mass loading while adsorption-induced cantilever bending is due to a differential stress due molecular adsorption. In the second approach that does not utilize selective coatings for speciation, detection is achieved by deflagration of adsorbed explosive molecules. Deflagration of adsorbed explosive molecules causes the cantilever to bend due to released heat while its resonance frequency decreases due to mass unloading.

Authors:
 [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
Work for Others (WFO)
OSTI Identifier:
970862
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 7th International Symposium on Technology of the Mine Problem, Monterey, CA, USA, 20060502, 20060504
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; SENSORS; MINIATURIZATION; VAPORS; DETECTION; EXPLOSIVES; OPERATION; DESIGN

Citation Formats

Pinnaduwage, Lal A. Explosive Vapor Detection Using Microcantilever Sensors. United States: N. p., 2004. Web.
Pinnaduwage, Lal A. Explosive Vapor Detection Using Microcantilever Sensors. United States.
Pinnaduwage, Lal A. Thu . "Explosive Vapor Detection Using Microcantilever Sensors". United States.
@article{osti_970862,
title = {Explosive Vapor Detection Using Microcantilever Sensors},
author = {Pinnaduwage, Lal A},
abstractNote = {MEMS-based microcantilever platforms have been used to develop extremely sensitive explosive vapour sensors. Two unique approaches of detecting of explosive vapours are demonstrated. In the first approach a cantilever beam coated with a selective layer undergoes bending and resonance frequency variation due to explosive vapour adsorption. The resonance frequency variation is due to mass loading while adsorption-induced cantilever bending is due to a differential stress due molecular adsorption. In the second approach that does not utilize selective coatings for speciation, detection is achieved by deflagration of adsorbed explosive molecules. Deflagration of adsorbed explosive molecules causes the cantilever to bend due to released heat while its resonance frequency decreases due to mass unloading.},
doi = {},
url = {https://www.osti.gov/biblio/970862}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {1}
}

Conference:
Other availability
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