NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Magnetoelastic sensors in combination with nanometer-scale honeycombed thin film ceramic TiO2 for remote query measurement of humidityRibbonlike magnetoelastic sensors can be considered the magnetic analog of an acoustic bell; in response to an externally applied magnetic field impulse the sensors emit magnetic flux with a characteristic resonant frequency. The magnetic flux can be detected external to the test area using a pick-up coil, enabling query remote monitoring of the sensor. The characteristic resonant frequency of a magnetoelastic sensor changes in response to mass loads. [L.D. Landau and E. M. Lifshitz, Theory of Elasticity, 3rd ed. (Pergamon, New York, 1986). p. 100].Therefore, remote query chemical sensors can be fabricated by combining the magnetoelastic sensors with a mass changing, chemically responsive layer. In this work magnetoelastic sensors are coated with humidity-sensitive thin films of ceramic, nanodimensionally porous TiO2 to make remote query humidity sensors. c2000 American Institute of Physics.
Document ID
20040088364
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Grimes, C. A.
(The University of Kentucky Lexington, Kentucky 40506, United States)
Kouzoudis, D.
Dickey, E. C.
Qian, D.
Anderson, M. A.
Shahidain, R.
Lindsey, M.
Green, L.
Date Acquired
August 21, 2013
Publication Date
May 1, 2000
Publication Information
Publication: Journal of applied physics
Volume: 87
Issue: 9 Pt 2
ISSN: 0021-8979
Subject Category
Instrumentation And Photography
Funding Number(s)
CONTRACT_GRANT: ECS9-701733
CONTRACT_GRANT: 1-R21-GM057240-01
CONTRACT_GRANT: NAG5-4594
CONTRACT_GRANT: ECS9-875104
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Life Sciences Technologies
Non-NASA Center

Available Downloads

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