1)Research status of high temperature piezoelectric ceramic materials: SiO2 is one of the earliest piezoelectric materials applied to devices. Due to its stable resonant frequency and good temperature stability, it is widely used in production control and management of all communication system. In c

About piezoelectric ceramic driver materials, piezoelectric ceramic displays high requirements on the properties of piezoelectric ceramic materials such as high voltage electrical strain constant, high curie point, high electromechanical coupling coefficient and high frequency constant. The most wid

Precise mechanical cutting method:Precision mechanical cutting is a common method of manufacturing piezoelectric micro devices. It uses a diamond cutter to cut a block of piezoelectric material or a thick film into micropillars and arrange them into an array for further assembly into a device. Howev

By using the inverse piezoelectric effect of the piezoelectric ceramic, precise displacement control can be conveniently realized to form a piezoelectric ceramic actuator. In recent years, the research and application of piezoelectric ceramic actuators has developed rapidly, and has formed an import

Pzt piezo ceramic actuators can be fabricated by using the inverse piezoelectric effect of piezoelectric ceramics, and are used in the automotive field to drive electric rearview mirrors, electric windows and doors, power seats, and the like. This kind of driving can greatly reduce the volume of the

piezoelectric ceramics vibration sensor are obtained by applying a DC strong electric field to a ferroelectric ceramic for polarization treatment. It is a special piezo ceramic material that can convert electrical energy and mechanical energy into each other. When the piezo ceramic is subjected to m

Many applications of piezoelectric ceramics in the precise instruments, including testing equipment, shock absorbing equipment and feeding equipment. In the application of these three aspects, various scholars have proposed different application methods. There are similarities and differences, and t

Mine inclination measurement is a new technology for mine borehole measurement, and it is an important means for comprehensive advance detection and structural positioning. Due to its unique role in pre-exploration exploration of piezo ceramic tubes, a number of corresponding technical studies have

In the past 20 years,piezoelectric crystal cost has developed rapidly at home and abroad. Due to their advantages of simple production, low cost and good stability, they have been widely used in the fields of electronics, light, heat and acoustics, and have a wide range. Ultrasonic transducers are m

The increasingly performance of piezoelectric ceramic materials has made it the most widely used class of functional piezo ceramics. Not only used in industrial and civil products, such as ceramic filters, ceramic discriminators, ceramic attenuators in the communication equipment; underwater acousti

Since the curie brothers discovered the piezoelectric effect of tourmaline in 1880, piezoelectric science has officially entered the stage of human science and technology civilization. Early theoretical research was mainly done by the curie brothers later. In 1881, the curie brothers verified the in

The manufacture of excellent piezoelectric ceramic components usually requires requirements for the performance of piezoelectric ceramics. Because the performance of piezoelectric ceramics has a decisive influence on the quality of components. Therefore, to discuss and understand the components of p

The admittance characteristics are further analyzed based on the obtained equivalent circuit diagram of the piezoelectric ceramics transducer. In order to simplify the derivation, it is assumed that the piezoelectric ceramic transducer has no electrical loss, that is, 0R=0, and the equivalent circui

The mechanical energy of piezoelectric ceramics is converted into electrical energy. The electromechanical coupling coefficient is not only related to material parameters, but also related to the working mode of specific piezoelectric materials. For piezoelectric ceramics, its size is also related t