Invention Grant
- Patent Title: Opto-acoustoelectric device and methods for analyzing mechanical vibration and sound
- Patent Title (中): 光电装置及分析机械振动和声音的方法
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Application No.: US10895049Application Date: 2004-07-21
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Publication No.: US07134343B2Publication Date: 2006-11-14
- Inventor: Kazuhiro Suzuki , Hideyuki Funaki , Keitaro Shigenaka , Tomio Ono , Tadashi Sakai , Yujiro Naruse , Yoshinori Iida , Ikuo Fujiwara
- Applicant: Kazuhiro Suzuki , Hideyuki Funaki , Keitaro Shigenaka , Tomio Ono , Tadashi Sakai , Yujiro Naruse , Yoshinori Iida , Ikuo Fujiwara
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: JPP2003-202000 20030725; JPP2004-091290 20040326; JPP2004-093424 20040326
- Main IPC: G01H9/00
- IPC: G01H9/00 ; G01B11/16
Abstract:
An opto-acoustoelectric device encompasses a diaphragm having a diffraction grating, the diaphragm is susceptible to a vibration driven by an external force; a light source oriented to irradiate the diffraction grating; and a photo detector configured to detect the light diffracted by the diffraction grating and to convert the detected light into an electric signal. The electric signal corresponds to a displacement of the vibration in the diaphragm.
Public/Granted literature
- US20050052724A1 Opto-acoustoelectric device and methods for analyzing mechanical vibration and sound Public/Granted day:2005-03-10
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