Abstract To study the output characteristics of the variable area cylindrical capacitive inclination sensor considering the edge effect, this paper combines the conformal transformation method, Green’s function method and computer numerical simulation to discuss the electric field of the variable area cylindrical capacitive inclination sensor, give the expression of its capacitance, draw the variation curve of the sensor capacitance with the inclination, and analyze the factors affecting the linearity and sensitivity of the sensor. It points out how to improve the output characteristics of the sensor. The numerical simulation results show that when the center angle of the outer plate of the sensor is smaller than that of the inner plate, reducing the distance between the two plates can increase sensor linearity and sensitivity at the same time. Because the lateral edge effect of the sensor plate is considered in this paper, the results obtained have high accuracy.
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