Temperature compensation and scalability of hysteretic/anhysteretic magnetic-property sensors

Non-destructive/noncontact stress sensors based on magnetoelastic principles have numerous applications for monitoring cable stress. However, their widespread use is hampered by problems related to temperature compensation and to scaling of calibration data to large cables, which is the domain of gr...

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Bibliographic Details
Published in:IEEE sensors journal 2003-12, Vol.3 (6), p.708-716
Main Authors: Lloyd, G.M., Singh, V., Wang, M.L., Hovorka, O.
Format: Article
Language:English
Subjects:
Cables
Calibration
Exact sciences and technology
General equipment and techniques
Hysteresis
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Magnetic domains
Magnetic hysteresis
Magnetic properties
Magnetic sensors
Monitoring
Physics
Scalability
Sensors
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Stresses
Temperature compensation
Temperature sensors
Thermal response
Thermal stresses
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Summary:Non-destructive/noncontact stress sensors based on magnetoelastic principles have numerous applications for monitoring cable stress. However, their widespread use is hampered by problems related to temperature compensation and to scaling of calibration data to large cables, which is the domain of greatest interest. In this paper, experimental magnetic property and thermal response data are obtained and analyzed to address these problems. The magnetic property data include initial curves, major hysteresis loops, and anhysteresis curves, all obtained quasistatically. The thermal response data are presented in the form of a dimensionless correlation which is valid over a range of Reynolds numbers. Comparison of data indicates the feasibility of using absolute magnetic property measurements as the basis for direct calibration of large sensors.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2003.820325