High-power Ultrasonic Transducers
نویسندگان
چکیده
منابع مشابه
High temperature ultrasonic transducers: review
The problems of development of high-temperature ultrasonic transducers for modern science and technology applications are analysed. More than 10 piezoelectric materials suitable for operation at high temperatures are overviewed. It is shown that bismuth titanate based piezoelectric elements are most promisable. Bonding methods of piezoelectric elements to a protector and backing are discussed. ...
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Thick (> 40μm) ceramic films as piezoelectric ultrasonic transducers (UTs) have been successfully deposited on metallic and graphite/epoxy composite substrates by a spray technique. The characteristics of these UTs are that they (1) can be integrated directly onto the desired planar or curved substrates; (2) may not need couplant; (3) can operate in the transmission and pulse/echo modes with a ...
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In this paper, an improved method for the measurement of acoustic power and electro-acoustic efficiency of high power ultrasonic transducers is presented. The measuring principle is described, the experimental results are given. In comparison with traditional methods, the method presented in this paper has the advantages of simplicity, economy and practicality. The most important is that it can...
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Piezoelectric composites are a class of functional materials consisting of piezoelectric active materials and non-piezoelectric passive polymers, mechanically attached together to form different connectivities. These composites have several advantages compared to conventional piezoelectric ceramics and polymers, including improved electromechanical properties, mechanical flexibility and the abi...
متن کاملEquivalent Electrical Simulation of High -Power Ultrasonic Piezoelectric Transducers by Using Finite Element Analysis
Finite element method (FEM) has been employed extensively for vibration modal analysis of piezoelectric transducers and devices. In recent years, there has been a growing interest in the simulation and analysis of piezoelectric transducers by using equivalent electrical circuit models. This paper has been devoted to such approach for two designed and fabricated ultrasonic sandwich transducers h...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 2009
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.75.479