Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Sensors and Actuators》 2006-06
Add to Favorite Get Latest Update

Research of the Capacitance Measurement System for Inner Diameter of Deep Hole

XU An-tao1,FU Jing-ye3,ZHENG Yi-zhong 2*,YE Seng-hua2 1.Tianjin Universit;Tianjin 300072,China;2.State Key Laboratory of Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;3.Department of Automobile,College of Transportation Engineering,Tianjin 300072,China  
A system,which use the capacitance sensor to measure the aperture of small blind holes,has been studied.A capacitance probe with small diameter is used as the sensor.The capacitance instrument converts the change of the aperture to the change of voltage signal which can be input into a computer through the USB interface to process.Working principle of the capacitance sensor and the electronic circuits of the capacitance instrument are discussed.The design scheme is also disserted as the system using the capacitance sensor to measure the aperture of small holes.The calibration of the sensor has been done on the small blind holes with Φ3 and 7 mm aperture.From the analyzed experiment data,the resolution is 0.05 μm,and the standard deviation of the experiments is within 0.5μm.
【CateGory Index】: TP212.1;TP274.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved