| 【Aim】 |
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This course provides basic knowledge on ultrasonic technologies. Most of
the hours are devoted to understand the piezoelectric transducers and vibration
system. An electrical equivalent circuit model for the transducer is presented
after the review of basic theory of elastic waves in solids. Determination
of the circuit constants is explained through the electrical measurements
and the vibration instrumentation. Various kinds of industrial applications
of high power ultrasonic waves are introduced.
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| 【Schedule】 |
- History and basic concept of ultrasonic technologies
- Mechanics of elastic body; basic theory of vibrations of solid body
- Wave equations for elastic waves in solid body
- Vibration modes and their eigen frequencies
- Piezoelectricity and its application to ultrasonic technology
- Electrical equivalent circuit of piezoelectric transducers
- Configurations of piezoelectric transducers
- Measurements and evaluation of the transducers
- Transformation of vibration displacement amplitude using horns
- Vibration direction converters and power combiners
- Driving circuit for ultrasonic transducers
- Applications of high power ultrasonic waves
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| 【Texts, etc】 |
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Lecture notes will be handed out in class.
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| 【Prerequisite】 |
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Fundamental physics and mechanics, electric circuit theory
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| 【How to Grade】 |
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Midterm and final examinations.
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| 【Message form the Lecturer】 |
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