The piezoelectric ceramics vibrates under the action of an external alternating electric field to excite ultrasonic waves. The common vibration modes of piezoelectric ceramics are stretching vibration, bending vibration and shear vibration. The commonly used telescopic vibration modes of piezoelect

New hydrophone technologyThe underwater acoustic transducer for receiving underwater acoustic signals is called a water hammer, and the hydrophone includes a piezoelectric type, a magnetostrictive type, a moving coil type, and a piezoresistive type. Here, w

Submarine intelligent includes underwater acoustic communication,One of the technical difficulties to overcome the intelligent for submarine pipeline maintenance is how to realize the underwater communication system of the intelligent to complete the remote operation of the platform. Due to the par

A ultrasonic transducer is a device that converts mechanical vibration into electrical signals or mechanical vibrations driven by an electric field. Piezoelectric polymer electroacoustic devices utilize the transverse piezoelectric effect of the polymer, while transducer design utilizes polymer piez

The water flow sensor measures the magnetic physical by using the hall effect of the hall element. A load resistor is connected to the positive pole of the hall element while a value of 5V is applied.The water flow transducer for flowmeter measures the magnetic physical quantity by using the Hall ef

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