基于无线传感器的转速测量。

Rotational Speed Measurement Based on Wireless Sensors.

机构信息

Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China.

出版信息

Sensors (Basel). 2021 Dec 2;21(23):8055. doi: 10.3390/s21238055.

DOI:10.3390/s21238055

PMID:34884058

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8659841/

Abstract

This article presents a method for detecting rotational speed by (inductor-capacitor) wireless sensors. The sensing system consists of two identical resonant tanks. One is mounted on the rotating part and the other, as a readout circuit, is placed right above the rotating part. When the inductor on the rotating part is coaxially aligned with the readout inductor during rotation, the mutual coupling between them reaches the maximum, resulting in a peak amplitude induced at the readout tank. The period of the readout signal corresponds to the rotation speed. ADS (Advanced Design System) software was used to simulate and optimize the sensing system. A synchronous detection circuit was designed. The rotational speed of an electric was measured to validate this method experimentally, and the results indicated that the maximum error of the rotation speed from 16 rps to 41 rps was 0.279 rps.

摘要

本文提出了一种通过 (感应器-电容器) 无线传感器检测转速的方法。传感系统由两个相同的谐振槽组成。一个安装在旋转部分，另一个作为读出电路，放置在旋转部分的正上方。当旋转部分上的感应器与读出感应器在旋转过程中同轴对齐时，它们之间的互感达到最大值，导致在读出槽中感应出峰值幅度。读出信号的周期与转速相对应。使用 ADS (高级设计系统) 软件对传感系统进行了模拟和优化。设计了一个同步检测电路。实验测量了电动的转速，验证了这种方法，结果表明，转速从 16 rps 到 41 rps 的最大误差为 0.279 rps。