Contact-Less Speed Probe Based on Eddy Currents

被引：22
作者：
Cardelli, E. [1 ]
Faba, A. [2 ]
Tissi, F. [3 ]
机构：
[1] Univ Perugia, Dept Ind Engn, I-06100 Perugia, Italy
[2] Univ Perugia, Ctr Elect & Magnet Appl Res, I-06100 Perugia, Italy
[3] Univ Perugia, Polo Sci & Didatt Terni, Terni, Italy
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 07期
关键词：
Contactless probe; eddy currents; speed measurement; HYSTERESIS; BEHAVIOR; MODEL;
D O I：
10.1109/TMAG.2013.2248701
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work, we present a technique for the speed measurement of a metallic body with flat surface and without marks, using a contact-less probe. Basically, the measurement system is made with a permanent magnet for the magnetic field generation and a Hall plate as pick-up sensor. The contact-less probe geometry, the electronic circuit and the devices used for the output signal treatment, including a suitable signal processing applied to increase the signal noise ratio are described. In addition, a theoretical analysis of the probe sensitivity is proposed. In order to show the practical performance of the speed measurement proposed, a series of experimental tests is presented.
引用
收藏
页码：3897 / 3900
页数：4
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