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Vol. 22, Special Issue, June 2013, pp. 147-154




Develop a Framework of Ferro-Magnetization Sensor on Weightlessness in Modified Bessel Analysis
Je-Ee Ho

Department of Mechanical Engineering, National Ilan University, No. 1, Sec. 1, Shennong Rd., Yilan City,

Yilan County 260, Taiwan (R.O.C.)

Tel.: +886939838749

E-mail: jeho@niu.edu.tw


Received: 15 April 2013   /Accepted: 20 June 2013   /Published: 28 June 2013

Digital Sensors and Sensor Sysstems


Abstract: A framework of ferro-magnetization on apparent weightiness, through electro-magnetic induction, is proposed in this study. Here the integral solution of ferro-magnetization, based on Boltzmann probabilistic theory in modified Bessel function, avoids unstable result accessed from traditional Langevin's analysis. Also, a self-designed electromagnetism mechanism measuring gravitational counteraction of testing sample is set up and used to evaluate its magnetic behavior on apparent weight. That not only features as a simple device with economical cost and easy operation, but also could be further extended to the application of ferro-magnetization sensor. While compared to the results measured from Vibration Sample Magnetometer (VSM) for ferro-product provided by Matsumoto Co., magnetization curve of self-prepared ferro-sample, base on present measuring method, shows an excellent agreement within the working region of 0~36 mT , in which the maximum relative error 100 %, evaluated from traditional classic Langevin theorem, could be remarkably reduced to 20 %.


Keywords: Gravitational counteraction, Ferro-magnetization.


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