Research on Characteristics of Electrostatic Wear-Site and Oil-Line Sensor with Theoretical and Comprehensive Analysis

Table 1

Features of the two types of electrostatic sensors.

Sensor features	WSS	OLS
Basic structure	Three layers (sensing layer, insulation layer and shielding layer)
Sensing surface shape	Flat	Ring
Relative position to the critical components	Close to	Far away (in the oil line)
Most limit factor	Wear site surrounding space	Pipe diameter