发明名称 |
PHYSICAL QUANTITY MEASURING DEVICE |
摘要 |
It is provided a system for measuring a physical quantity based on a detection signal using a vibrator 1, a self-oscillating circuit 12A oscillating a driving vibration in the vibrator 1 and a detection circuit for outputting a detection signal from the vibrator 1. The self-osciuating circuit 12A comprises a current-voltage converter 3 and a low pass filter 25. The detection circuit comprises a charge amplifier circuit amplifying an output signal from the vibrator, and the current-voltage converter and the charge amplifier circuit are formed in a monolithic IC. |
申请公布号 |
EP1707919(A4) |
申请公布日期 |
2014.03.19 |
申请号 |
EP20050704080 |
申请日期 |
2005.01.19 |
申请人 |
SEIKO EPSON CORPORATION;SEIKO NPC CORPORATION |
发明人 |
YOKOI, SHOJI;KOBAYASHI, YOSHIHIRO;TAKAHASHI, MASAYUKI |
分类号 |
G01C19/56;G01C19/5776;G01P15/08 |
主分类号 |
G01C19/56 |
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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