Tunneling Magneto Resistive Sensors, their Construction and Potential Applications
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Authors
Smits, Jan
Issue Date
1999
Type
Thesis
Language
en_US
Keywords
Alternative Title
Abstract
The long-term goal of our research is aimed at the development of a sensor capable of detecting cracks in the structures of aerospace vehicles. Particular points of interest are
airframes and' wing structures where plates join together and overlap in a riveted joint.
These cracks can lead to the failure of these joints. Current sensors can detect cracks on
the surface but have a difficult time penetrating into deeper depths where these potentially
lethal cracks can develop.
Development and incorporation of a sensor with tunneling magneto-resistance (TMR)
effects of a ferromagnet - insulator - ferromagnet compound for a small and inexpensive
hand held sensor would prove to be very effective in finding these cracked rivet
joints.
This research is focused on the development of Tunneling Magneto Resistive materials
with the potential of fulfilling this need.
Description
iv, 14 p.
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License
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