Piezoelectric films are widely used because of their excellent performance. Piezoelectric thick films can be used to manufacture a variety of micro devices, such as micropumps, ultrasonic motors, resonators, pyroelectric thick film sensors, thick film actuators, micro-energy pickups, etc. 1. Hydroph

Piezoelectric materials are functional materials that realize the conversion between mechanical energy and electrical energy. Its development has a long history. Since the discovery of the piezoelectric effect on quartz crystals by the CURIE brothers in the 1880s, piezoelectric materials have begun

Acoustic emission signals are propagating in the solid media contain characteristic information of acoustic emission sources. To use this information to reflect material characteristics or the development of defects, it is necessary to receive such acoustic emission signals on solid surfaces. Acoust

First, the piezoelectric equation.For the performance of piezoelectric materials, we have the following four considerations: 1. Piezoelectric materials are elastomers, which obey Hooke's law in terms of mechanical effects, that is, the elastic relationship between stress τ and strain e: τ = ce Or e

The development history and characteristics of ultrasoundAcoustics, as a branch of physics,it is a science that studies the occurrence, propagation, reception, and effects of sound waves. Before 1940, there were only single-crystal piezoelectric materials, which made ultrasonic wave not widely used.

Explanation of vibration frequency of piezoelectric ceramicsFirst, the larger the piezoelectric ceramic area, the lower the natural vibration frequency.For the piezoelectric ceramic sensor,which pass through the related alternating current, it will produce a variety of different alternating current

The high-frequency pulse circuit of the ultrasonic flaw detector generates a high-frequency pulse oscillating current to be applied to the piezoelectric ceramic crystal in the ultrasonic transducer (probe), which excites the ultrasonic wave and transmits it to the workpiece to be inspected, and when

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

There are many characteristics of the gas flow sensor. What are the specific characteristics? The gas flow sensor has no moving parts due to the vortex flow sensor,which has small pressure loss, high precision piezo ceramic disc and is easy to maintain. The flow rate of the air measured on a pipe wi

With the rapid development of integrated circuit technology, liquid flow sensors have been widely used, and the wide application of microcomputers has further improved the ability of flow measurement. For example, laser Doppler flowmeters can handle more complicated applications after using microcom

Low-temperature sintering PZT ceramic materialsAfter decades of research, piezoelectric ceramics has made great progress. Piezo discs and cylinders has become one of the most important functional materials at home and abroad. It is widely used in electronic, radar, micro-displacement control, aero

The Story Of Piezo Plates And Blocks Has Just Gone ViralPZT piezoelectric ceramics are widely used in the field of preparation of high sensitivity acoustic transducers and medical ultrasound transducers. In this paper, PZT piezoelectric ceramics are prepared as porous separ