作者：王玉珍1,2，贺小军1,2，张磊1
单位：1. 北京航天试验技术研究所，北京100074；
2. 北京市航天动力试验技术与装备工程技术研究中心，北京100074
中图分类号：TP212
文献标识码：A
文章编号：1006-883X(2021)03-0015-05
收稿日期：2020-11-05
摘要：针对机械式角度尺存在的测量过程较为繁琐、测量结果不易读数、测量功能单一等问题，文章设计了一款数显角度尺。该数显角度尺利用容栅测量技术和单片机技术进行开发。基于容栅测量原理，设计开发符合要求的圆容栅传感器，该圆容栅传感器具有角位移信号输出功能，通过单片机对该位移信号进行数据运算及处理，从而实现0°～90°、90°～180°、180°～270°、270°～360°、0°～360° 5种测量模式，并配合特定的机械结构件，从而实现数显角度尺的精密测量。该文所设计的数显角度尺分辨率为1′，经实测，其精度可达2′。同时具有数据输出功能，便于实现在线测量，与传统机械式角度尺相比，具有操作简单、易于读数、测量功能多样等优点。
关键词：容栅技术；数显；角度尺
Research and Development of Digital Display Angle Ruler Based on the Capacitive Technology
WANG Yuzhen1,2, HE Xiaojun1,2, ZHANG Lei1
1. Beijing Institute of Aerospace Testing Technology, Beijing 100074, China; 2. Beijing Engineering Research Center of Aerospace Propulsion Testing Technology and Equipment, Beijing 100074, China
Abstract: In view of the problems of mechanical angle ruler, such as complicated measurement process, difficult reading of measurement results and single measurement function, the paper designs a digital angle ruler. The digital display angle ruler is developed by capacitive grating measurement technology and single chip microcomputer technology. Based on the principle of capacitive grating measurement, a circular capacitive grating sensor is designed and developed. The circular capacitive grating sensor has the function of angular displacement signal output. Through the data operation and processing of the displacement signal by single-chip microcomputer, five measurement modes of 0°~90°, 90°~180°, 180°~270°, 270°~360° and 0°~360° are realized. With the specific mechanical structure, the precision measurement of digital angle ruler can be realized. The resolution of the digital angle ruler designed in the paper is 1′, and its accuracy can reach 2′. At the same time, the angle ruler has the function of data output, which is convenient for on-line measurement. Compared with the traditional mechanical angle ruler, it has the advantages of simple operation, easy reading and various measuring functions.
Key words: capacitive technology; digital display; angle ruler
阅读全文
备注：2021年 第27卷 第03期