发明名称 |
Vibration sensing method and apparatus therefor |
摘要 |
A vibration sensing apparatus including an acceleration sensor 2 for outputting a sensing signal corresponding to a vibrating acceleration, a level discriminator 3 for generating an output when the output level of the signal from the acceleration sensor 2 exceeds a preset reference level, a display unit 4 for displaying the output of the level discriminator 3, a piezoelectric ceramic power generating unit 5 using piezoelectric ceramics for generating a charge when it is subjected to vibration, and a conversion unit 6 for converting the charge generated by the piezoelectric ceramic power generating unit 5 into DC power, the DC power being supplied to the level discriminator and to the display unit as power to be consumed by them.
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申请公布号 |
US5703295(A) |
申请公布日期 |
1997.12.30 |
申请号 |
US19950563581 |
申请日期 |
1995.11.28 |
申请人 |
NKK CORPORATION;KABUSHIKI KAISHA FUJI CERAMICS |
发明人 |
ISHIDA, NARUO;SAIJYO, YOSHIO;ARAKAWA, SHINGO;WATANABE, KIMIAKI;INABA, HIDEHIRO |
分类号 |
H01L23/28;G01H1/00;H01L23/29;H01L23/50;(IPC1-7):G01L1/00;G01H13/00 |
主分类号 |
H01L23/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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