发明申请
- 专利标题： Systems for measuring physical quantities
- 专利标题（中）： 物理量测量系统
-
申请号： US11039712申请日： 2005-01-19
-
公开(公告)号： US20050204814A1公开(公告)日： 2005-09-22
- 发明人: Shoji Yokoi , Yoshihiro Kobayashi , Masayuki Takahashi
- 申请人： Shoji Yokoi , Yoshihiro Kobayashi , Masayuki Takahashi
- 申请人地址： JP Nagoya-City JP Shinjuku-ku JP Koto-ku
- 专利权人： NGK Insulators, Ltd.,SEIKO EPSON CORPORATION,NIPPON PRECISION CIRCUITS INC.
- 当前专利权人： NGK Insulators, Ltd.,SEIKO EPSON CORPORATION,NIPPON PRECISION CIRCUITS INC.
- 当前专利权人地址： JP Nagoya-City JP Shinjuku-ku JP Koto-ku
- 优先权： JPP2004-11568 20040120
- 主分类号： G01C19/56
- IPC分类号： G01C19/56 ; G01C19/5614 ; G01P15/08
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-oscillating 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.
公开/授权文献
- US07441458B2 Systems for measuring physical quantities 公开/授权日：2008-10-28
信息查询
