发明申请
- 专利标题: Spring scale
- 专利标题(中): 弹簧秤
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申请号: US10505338申请日: 2003-02-24
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公开(公告)号: US20050061553A1公开(公告)日: 2005-03-24
- 发明人: Dag Wang , Ralph Bernstein , Geir Jensen , Eivind Lund
- 申请人: Dag Wang , Ralph Bernstein , Geir Jensen , Eivind Lund
- 优先权: NO20020901 20020225
- 国际申请: PCT/NO03/00068 WO 20030224
- 主分类号: G01G3/14
- IPC分类号: G01G3/14 ; G01G9/00
摘要:
A spring scale, in particular for weighing loads in the μg-mg range, comprises a load platform suspended by at least three flexural springs in a surrounding frame, and has bridge-connected strain gauges arranged for measuring strain on one side of the flexural springs. The flexural springs extend in succession along substantially the whole periphery of the load platform in a gap between the load platform and the inner edge of the frame, and an attachment spot on the load platform for every flexural spring is arranged substantially directly opposite or past an attachment spot on the inner edge of the frame for a next flexural spring in the succession of springs. Preferably, the of spring scale is made in one piece, and manufactured by means of semiconductor process technology.
公开/授权文献
- US07078631B2 Spring scale 公开/授权日:2006-07-18
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