TITLE:
Analysis of Spatial Sensitivity Based on Electrostatic Monitoring Technique in Oil-Lubricated System
AUTHORS:
Zelai Jin, Fuqiang Zhang
KEYWORDS:
Wear Particles, Mathematical Model, Spatial Sensitivity, Field of View, Shaft Diameter Ratio
JOURNAL NAME:
Open Access Library Journal,
Vol.5 No.10,
October
30,
2018
ABSTRACT: In this paper, for the detection of wear particles in lubricating oil roads, by an-alyzing the particle belt motor, a mathematical model of the oil circuit electro-static sensor considering the dielectric constant is proposed. At the same time, the concept of spatial sensitivity and visual field is introduced. The influencing factors of the position of the charged abrasive particles, the axial length of the sensor and the radial radius were studied respectively. The influence of each variable on the sensitivity was obtained, and the accuracy of the mathematical model was also verified. The simulation results show that reducing the radial radius of the sensor can effectively increase the spatial sensitivity of the electrostatic sensor; the larger the axial length L of the electrode, the higher the sensitivity, and the more uniform the cross-sectional sensitive field distribution; in the axial and radial directions, the larger the shaft diameter ratio, the more sensitive the sensor is and the more sensitive it is.