Title: Vibration sesor
Application Number: 200580016110 Application Date: 2005.05.12
Publication Number: 1957238 Publication Date: 2007.05.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H11/06;G01P15/125;H04R19/01
Applicant(s) Name: Hosiden Corp. Address:
Inventor(s) Name: Yasuda Mamoru;Sugimori Yasuo
Attorney & Agent: wenda peng
Abstract:
    A vibration sensor whose impact resistance is improved without reduction in sensitivity. The vibration sensor has a fixed electrode and a vibration plate (3) whose surface facing the fixed electrode functions as a vibration electrode and having a weight (1) on the surface on the opposite side of the vibration electrode, and the vibration sensor outputs a vibration detection signal based on vibration in capacitance between the fixed electrode and the vibration plate (3). The vibration plate (3) is divided by slits (11) into a vibration section (33) that is positioned at the central section of the plate and has the weight (1), a fixed section (31) that is positioned on the periphery of the plate and fixes the vibration plate (3), elastic supporting sections (32) that each have narrow central section (32c) and that are formed at equal intervals in the circumferential direction to connect the vibration section (33) and the fixed section (31). Further, the slits (11) are provided at equal intervals in the circumferential direction such that the end sections on the vibration plate (33) side of and the end sections on the fixed section (31) side of adjacent slits (11) are superposed on each other in the radical direction.
Time: 6
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