NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
JPL Electronic Nose: From Sniffing Brain Cancer to Trouble in SpaceWhat Is An Electronic Nose? An array of non-specific chemical sensors, controlled and analyzed electronically, which mimics the action of the mammalian nose by recognizing patterns of response. An Enose: (1.) ENose measures background resistance in each sensor and establishes a baseline. (2.) Contaminant comes in contact with sensors on the sensing head. (3.) The sensing films, change physical properties, such as thickness or color, as air composition changes. (4.) Sensor response is recorded by a computer, the change in resistance is computed, and the distributed response pattern of the sensor array is used to identify gases and mixtures of gases. (5. Responses of the sensor array are analyzed and quantified using software developed for the task.
Document ID
20120013770
Acquisition Source
Jet Propulsion Laboratory
Document Type
Presentation
External Source(s)
Authors
Homer, Margie L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 26, 2013
Publication Date
June 6, 2011
Subject Category
Instrumentation And Photography
Distribution Limits
Public
Copyright
Other
Keywords
chemical sensing
odorant receptors

Available Downloads

There are no available downloads for this record.
No Preview Available