A comparative study of rounded and strip electrostatic sensors for non-contact measurement of cable speed

This paper presents the recent progress in the design and implementation of a rounded electrostatic sensor for the speed measurement of non-flat static materials such as rounded cables in comparison to a strip type electrostatic sensor. Experimental tests were conducted on a motorized test rig for a speed ranging from 0.50m/s to 10m/s. The advantages and limitations of the two types of electrostatic sensor for non-contact speed measurement are discussed in detail. The results indicate that the rounded sensor outperforms the strip type sensor in terms of sensitivity, signal-to-noise ratio, repeatability, and accuracy.