[原创] IDT ZMID5202电感位置传感器旋转360度解决方案

IDT公司的ZMID520x系列是电感式位置传感器,采用线回路和涡流产生电感的原理来检测导电物体在线圈上滑动或旋转的位置,旋转检测全方位360度,PWM数字输出,过压,反相极性,ESD和短路保护,10位分辨率,满足汽车标准AEC-Q 100, grade 0,工作温度-40°C 到150°C,主要用在高达360度的旋转位置传感器如转向角传感器,替换电位器,小角度传感器或弧线运动传感器如阀门传感器,汽车水平传感器以及线性运动传感器如液面传感器.本文介绍了ZMID520x系列主要特性,功能框图,应用电路以及评估板ZMID520x EVK主要特性,主要元件分布图,ZMID5201/02/03演示板电路图,材料清单和PCB设计图.

The ZMID520x uses the physical principles of induction in a wire loop and eddy currents to detect the position of an electrically conducting target that is sliding or rotating above a set of coils, consisting of one transmitter coil and two receiver coils.

The three coils are typically printed as copper traces on a printed circuit board (PCB). They are arranged such that the transmitter coil induces a secondary voltage in the receiver coils that depends on the position of the metallic target above the coils.

A signal representative of the target’s position over the coils is obtained by demodulating and processing the secondary voltages from the receiver coils. The target can be any kind of metal, such as aluminum, steel or a PCB with a printed copper layer.

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