金属目标感应接近与运动方向传感器设计

Cristinel Ababei, J. Richie
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引用次数: 0

摘要

本文设计了一种新型的感应式接近传感器,用于探测金属目标及其运动方向。提出的传感器设计包括一个带有必要的微控制器电路的基板,用于驱动和读取传感LC槽,以及用于印刷传感器线圈的几种不同解决方案。不同的线圈配置是在单独的印刷电路板上制造的,设计成即插即用的基础板。它们适用于不同的特定应用,包括感应在线圈平面上垂直接近的金属目标,以及感应和识别运动的横向方向(即从左到右或从右到左)。利用免费的数值电磁学代码(NEC)对线圈的设计进行了仿真研究。开发并演示了一个完整的硬件原型,以检测不同的金属目标,包括铜、黄铜、铝和不锈钢。硬件实验结果与仿真结果吻合较好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sensor Design for Inductive Proximity and Moving Direction Sensing of Metal Targets
We present the design of a new inductive proximity sensor to detect metal targets and their direction of movement. The proposed sensor design includes a base board with the necessary microcontroller based circuitry for driving and reading the sensing LC tanks and several different solutions for the printed sensor coil. Different coil configurations are fabricated on separate printed circuit boards designed to plug-and-play into the base board. They are intended for different specific applications including for sensing metal targets approaching perpendicularly on the coil plane and for sensing and identifying the lateral direction of movement (i.e., left-to-right or right-to-left). The coil designs are studied via simulations using the freely available Numerical Electromagnetics Code (NEC). A complete hardware prototype is developed and demonstrated to detect different metal targets, including copper, brass, aluminum, and stainless steel. It is also shown that measurements obtained from hardware experiments are in good agreement with the simulations.
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