Micro-Acoustic Systems

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Lecturer
Kurosawa Minoru  Nakamura Kentaro 
Place
Thr1-2(G224)  
Credits
Lecture2  Exercise0  Experiment0
Code
88111
Syllabus updated
2011/9/20
Lecture notes updated
2011/9/20
Semester
Fall Semester

Outline of lecture

蠑セ諤ァ菴薙ョ謖ッ蜍輔サ豕「蜍輔r蠢懃畑縺励◆蠕ョ蟆上↑繧「繧ッ繝√Η繧ィ繝シ繧ソ繧繧サ繝ウ繧オ縺ェ縺ゥ縺ョ繝槭う繧ッ繝ュ繧キ繧ケ繝繝縺ォ髢「縺励※シ悟虚菴懷次逅繧縺昴%縺ァ逕ィ縺繧峨l繧区攝譁呻シ悟刈蟾・繝サ陬ス菴懈橿陦難シ後Δ繝繝ォ蛹悶ョ謇区ウ輔↑縺ゥ繧剃ソョ蠕励☆繧九ょキ菴鍋噪縺ェ繧サ繝ウ繧オ繧繧「繧ッ繝√Η繧ィ繝シ繧ソ繧貞叙繧贋ク翫£シ後◎縺ョ蜴溽炊縺九i繝「繝繝ォ蛹悶r陦後>逅隗」繧呈キア繧√k縲

Micro actuators and sensors based on elastic vibration and/or elastic wave are lectured. Starting from materials and fabrication technologies for MEMS (micro electro mechanical systems) devices, structures and principles of the transducers are introduced. A couple of sensors and actuators are studied in detail to obtain clear understanding for actual devices. For this purpose, modeling methods of the piezoelectric electro mechanical system and opto mechatro system are discussed.

Purpose of lecture

Based on the application of elastic wave and acoustic wave engineering, micro electro mechanical systems (MEMS) are lectured from the principle to modeling. MEMS is getting more and more important technology field in these days. The priceple, analysis method and modeling of electro-acoustic transducers which are very important in this field, are lectured. Opto-acoustical sensing system is lectured also.

Plan of lecture

01.Elastic wave and vibration
02.Piezoelectric equations and electro mechanical equivalent circuit
03.Simple vibration mode electo mechanical transducers
04.Vibro gyro scope: principle and modeling
05.Principle of ultrasonic motors
06.Modeling of ultrasonic motors
07.Actuators and sensors using piezoelectirc film material
08.Surface acoustic wave device: principle and modeling
09.Surface acoustic wave motor
10.Opto-acoust sensing
11.Fiber optic micro sensors

Textbook and reference

Original materials will be deriverd.

Related and/or prerequisite courses

Ultrasonic electronics is helpful for well understanding.縲

Evaluation

Final examination and short problems in each lecture.

Comments from lecturer

Starting from the basics of elastic vibration/wave phenomenon and piezoelectric transducers, electro mechanical equivalent circuit modeling is lectured. This modeling is effective to understand the quantitative relationshipt of the device operation.

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