The preparation process of alumina piezo ceramics mainly includes three aspects: preparation of alumina powder, formation of alumina ceramics and preparation of sintered alumina ceramics. At present, the preparation process of the alumina powder includes following aspects: (1) an hydrolysis method.

Electronic piezo ceramic transducer includes other materials such as device porcelain, electric vacuum porcelain, piezoelectric porcelain, capacitor porcelain, semiconductor porcelain and magnetic porcelain.PZT materials are various piezo ceramics used in the electronic technology. The main characte

With the rapid development of optoelectronic technology and microelectronic technology,it is more and more urgent for the electronic piezo ceramics to use under the harsh environment,including high temperature, high humidity, electric strength, high radiation intensity. As commonly used materials in

There are many methods for measuring distance ultrasonic sensors, and the most used ones are Pellam and Galt in 1946.The pulse echo method proposed in the year, the working principle of the ultrasonic probe is excited by the ultrasonic frequency pulse to radiate the ultrasonic wave outside, and the

Ultrasonic ranging transducer at low SNR and low sampling rates based on cross-correlation function. The specific method is as follows the ultrasonic signal sent by the transmitter is used as a reference signal, and the output of the receiver is immediately sampled at the end of each transmission of

Chemical analysis is one of the most widely used methods for the detection of piezo ceramic materials. It is a kind of thing.A chemical reaction between the masses to achieve a qualitative or quantitative study of the material. In the analysis process, the chemical composition of the substance can b

Nowadays,piezo ceramics have been widely used in the electronics, chemical, military and otherfields due to their high hardness,strengths, excellent corrosion resistance and insulatingproperties. As the compositions of piezo ceramics and raw materials are key factors to determinethe performance, the

Compared with traditional two-dimensional ultrasound ultrasound piezoelectric ceramics, three-dimensional ultrasound imaging has an intuitive image display and can be accurate measurement such as volume and area, and the time is required to shorten the diagnosis of doctors.Three-dimensional ultrasou

1.Medical ultrasound imaging technology is the four medical imaging technologies of modern medical imaging technology, and has been widely used in the cardiology, obstetrics, ophthalmology, liver, kidney, gallbladder and vascular system. Compared with other imaging technologies, ultrasound imaging

The ultrasonic transducers is bonded with two symmetrical metal shells and piezoelectric ceramic discs are polarized in the thickness direction with super glue to form a metal-ceramic composite type, its working mechanism is transforming for the high-impedance,small-radial expansion and contraction

The structure of the multi-node disk ultrasonic transducers, the horn function is to amplify the ultrasonic amplitude, and the large disk can improve the transducer's pointing. The working principle of this type of transducer is to connect a longitudinal conical horn and the longitudinal piezoelectr

The ultrasonic distance measuring transducer with double crystal oscillator is a bimorph ceramic that is bonded together and has opposite polarization directions.The working principle of the sheet is to apply an alternating electric field of opposite polarity to the upper and lower ceramic sheets in

Ultrasonic transducers are essentially a class of electromechanical energy conversion devices, which can be divided into piezoelectric, electromagnetic and magnetostrictive types according to their working principles. At present, common ultrasonic transducers are generally piezoelectric, which works

A device for transmitting and receiving ultrasonic waves, which is called an ultrasonic transducer or ultrasonic probe; an ultrasonic transducer and transceiver circuit constitutes an ultrasonic sensor. In order to develop a large-range ultrasonic sensor, it is necessary to understand the physical p