Performance Analysis of a Planar Displacement Sensor With Inductive Spiral Coils

被引:37
作者
Djuric, Snezana M. [1 ]
机构
[1] Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia
关键词
Displacement measurement; inductance; magnetic flux density; sensors; CAPACITIVE TRANSDUCER; RANGE;
D O I
10.1109/TMAG.2013.2288273
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 paper, a planar displacement sensor with inductive spiral coils is presented. The sensor is composed of two inductive coils of spiral shape. One coil is a stationary coil with input terminals, whereas the other coil is a moving (short-circuited) coil. The moving coil physically moves with respect to the stationary coil in x-z and y-z planes. The input inductance changes when the moving coil moves with respect to the stationary coil and it is measured between the terminals of the stationary coil. The inductive operating principle of the sensor was tested using the prototypes fabricated in printed circuit board technology. Two prototypes were designed and fabricated: the prototype without a gap in the stationary coil and the prototype with the gap inserted in the segments of the stationary coil.
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页数:4
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