DocumentCode
559789
Title
Damping ratio in a glass-based guided-wave optical microphone without a damping structure
Author
Murata, Kazuya ; Yoshida, Kazuaki ; Ohkawa, Masashi ; Sato, Takashi
Author_Institution
Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan
fYear
2011
fDate
Oct. 30 2011-Nov. 2 2011
Firstpage
1
Lastpage
2
Abstract
In a guided-wave optical microphone with a diaphragm as the vibration plate, damping diaphragm vibration is very significant. In this study, a glass-based guided-wave optical microphone without a damping structure was experimentally examined to evaluate the damping ratio as the first phase in the optimization of damping. The damping ratio and resonance frequency were evaluated to be 0.009 and 3.5kHz, respectively, for a fabricated microphone with a diaphragm of 20 mm × 20 mm × 0.15 mm.
Keywords
damping; diaphragms; microphones; optical glass; optical waveguides; vibrations; damping diaphragm vibration; damping ratio; diaphragm; glass-based guided-wave optical microphone; resonance frequency; vibration plate; Medical services;
fLanguage
English
Publisher
ieee
Conference_Titel
Microopics Conference (MOC), 2011 17th
Conference_Location
Sendai
Print_ISBN
978-1-4577-1344-6
Type
conf
Filename
6110343
Link To Document