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Silicone rubber (SR) and polymethylmethacrylate (PMMA) are widely used as insulators. To ensure the safe and stable operation of electrical equipment, it is very necessary to study the flashover performance of insulating materials. In this paper, the surface flashover characteristics of SR and PMMA under atmospheric pressure were studied by using the bar-bar electrode and pin-pin electrode, which...
A capacitive relative humidity sensor compatible with CMOS technology is researched. It uses comb electrodes and polyimide as moisture sensing material. A theoretical model for the variation of relative humidity sensor capacitance due to the dielectric constant change of the sensitive layer is built. The sensor is simulated by Ansys software using the same parameters. The conclusions show that the...
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