Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7904289 | Journal of Science: Advanced Materials and Devices | 2018 | 7 Pages |
Abstract
The real-time monitoring of the position and speed of a moving object is crucial for safety compliance in industrial applications. The effectiveness of current sensing technology is limited by sensing distance and messy environments. In this work, a position and speed sensor based on the giant magneto-impedance effect was fabricated using a Joule annealed Co-rich magnetic microwire. The fabricated GMI sensor response was explored over a frequency range of 1Â MHz-1Â GHz. The impedance spectrum showed a high GMI ratio and high field sensitivity response at low magnetic fields. The GMI sensor based longitudinal effect was found to be more sensitive than a commercial Gaussmeter. The practical utility of the high sensitivity of the sensor at weak magnetic fields for far-off distance monitoring of position and speed was demonstrated. This GMI-based sensor is highly promising for real-time position detection and oscillatory motion monitoring.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
O. Thiabgoh, T. Eggers, V.O. Jimenez, S.D. Jiang, J.F. Sun, M.H. Phan,