The arc extinguishing performance directly affects the performance of the high-pressure vacuum switch. In general, the main components of the high-voltage vacuum interrupter are static and dynamic contacts, shields, bellows, and housings. And the cutoff value should be low. However, from the current development of materials technology, there is no contact material that can meet these requirements at the same time.
Yuhai Company is engaged to research
and development of piezoelectric products
and related piezoelectric products, the related piezoelectric products includes the piezo sensors and transducer.
The Ultrasonic Transducer is a kind of transducer that converts the ultrasonic signal into electric signal, or vice versa. Ultrasound transmitter and receiver is a transducer that can transmit and receive ultrasound. Ultrasound sensor is a kind of sensor, in essence, it is also a transmitter and receiver. The working principle of this kind of equipment is similar to that of radar and sonar. Active ultrasonic sensors can emit and receive reflected waves, and determine the distance of the target by measuring the time interval between transmission and reception. Passive Ultrasonic Sensor is actually a microphone that can convert ultrasonic signal into electrical signal.
Ultrasonic Sensor Ultrasonic Sensor,Piezo Sensor,Ultrasonic Piezo Disc,Ultrasonic Piezo Elements Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
The commonly used vacuum switch contact materials include tungsten base, molybdenum base, copper bismuth, copper chrome (CuCr), and the like. The conventional high-voltage vacuum switch generally uses CuCr alloy contacts as the main body. In specific applications, the proportion of the CuCr alloy in the contact materials is often adjusted according to different needs, and the ratio is generally in the range of CuCr25 to Cu-Cr50.
According to the working principle and materials used, the ultrasonic transducer has Piezoelectric Transducer, electrostatic transducer (capacitive transducer), magnetostrictive transducer, electromagnetic acoustic transducer, mechanical transducer and other types [1].
September 06, 2020