Magnetoelastic Carbon Fiber Micro Strain Sensor

Research and development of carbon materials and advanced composites require a health monitoring of carbon fibers. A Villari effect-based method was developed for the measurement of the mechanical strain inside the carbon fiber. A microsensor was built up directly on an 8- mu m-thick carbon fiber. D...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2009-10, Vol.45 (10), p.4522-4525
Main Authors: Belski, A., Gatzen, H.H.
Format: Article
Language:English
Subjects:
Beams (radiation)
Capacitive sensors
Carbon fiber
Carbon fibers
Chemical vapor deposition
focused ion beam (FIB)
Magnetic field induced strain
Magnetic sensors
Magnetism
magnetoelastic microsensor
Magnetostriction
Mechanical sensors
Microsensors
Nanostructure
nanoturning
Optical fiber sensors
Physical vapor deposition
Research and development
Spirals
Strain
Strain measurement
thin-film technology
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Description
Summary:Research and development of carbon materials and advanced composites require a health monitoring of carbon fibers. A Villari effect-based method was developed for the measurement of the mechanical strain inside the carbon fiber. A microsensor was built up directly on an 8- mu m-thick carbon fiber. Deposition technologies were physical vapor deposition (PVD) and chemical vapor deposition (CVD). For patterning a coaxial spiral coil, a nanolathe implemented in a focused ion beam (FIB) system using the beam as a cutting tool in a turning process was applied. This paper describes the design, fabrication, experimental setup, and the first measurement results of the magnetoelastic microsensor.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2009.2023865