Capacitor state monitoring device based on ultrasonic signals

• Main Authors: LIN LIDA, LEI ZHANFEI, ZOU HONGSEN, NING FUMAO, ZHANG WENJUN, CHAI BIN, SHI LEI, ZHANG LIMING, LEI MEIMEI, WANG HAOZHOU, WU JIAWEI, GENG XIANGRUI, XU HUI, LI YANG, XIE WEIFENG
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

A capacitor state monitoring device based on ultrasonic signals comprises a first ultrasonic sensor and a second ultrasonic sensor which are arranged on a shell of a capacitor to be monitored, the first ultrasonic sensor is connected with a first comparator, the second ultrasonic sensor is connected with a second comparator, and the two comparators are both connected with the input end of a trigger. The output end is connected with the state output element; the two ultrasonic sensors are both used for collecting the amplitude of ultrasonic signals of a capacitor to be monitored and correspondingly inputting the amplitude to the comparators connected with the two ultrasonic sensors. The first comparator and the second comparator output a high level or a low level to the trigger according to the amplitude of an input ultrasonic signal and an ultrasonic amplitude threshold configured in the first comparator and the second comparator respectively, and the trigger keeps level signals output by the comparators and