The cornerstone of ultrasonic technology——The principle and design of ultrasonic transducer

Ultrasonic transducers convert alternating electrical signals into acoustic signals within the ultrasonic frequency range or convert acoustic signals in the external sound field into telecommunications
Energy conversion device, it is a key device in ultrasound technology, its performance is directly related to the effect and scope of ultrasound application technology, due to ultrasound
The application range of the technology is very wide, and new ultrasonic technologies are emerging, so there are many types of ultrasonic transducers corresponding to this. The article has many backgrounds for different applications.
The principle and design of various types of ultrasonic transducers are explained, the performance parameters and design requirements of different types of ultrasonic transducers are analyzed, and the ultrasonics are briefly summarized.
The test method of the performance parameters of the transducer, and the development trend of the ultrasonic transducer is analyzed.

introduction
Ultrasound technology appeared in the early $% century, it is based on classic acoustics
Theory-based, combined with electronics, materials science, signal processing technology
Technology, radar technology, solid state physics, fluid physics, biotechnology and computing
A comprehensive and comprehensive development based on achievements in technology and other fields
New technology disciplines, the development history of nearly a century shows that ultrasound is
The most active part of the development of acoustics, it is not only in some traditional
Has been widely used in industrial and agricultural technology, and has penetrated into the country
High-tech fields such as defense, biology, medicine and aerospace,
Ultrasound mainly studies the generation of ultrasonic waves in different media,
Issues of propagation, reception, information processing and related effects, ultrasonic objects
Physics and ultrasound engineering are the two main aspects of ultrasound, ultrasound physics
It is the foundation of ultrasonic engineering, it is used for various ultrasonic engineering applications
Technology provides the necessary theoretical basis and experimental data, ultrasonic engineering
The research content mainly includes ultrasound production in various ultrasound application technologies
Engineering design and process research of the health, transmission and reception system, ultrasound in
When propagating in the medium, there will be many physical, chemical and biological effects,
At the same time, because of the strong penetration of ultrasound, good directivity, and a large amount of information,
Easy to implement fast and accurate online detection and diagnosis and achieve non-destructive inspection
Industry, agriculture, national defense, biomedicine, and scientific research
Widely used