发明授权
US4492920A Electric indicator with return-to-zero feature and compensating coil to
cancel the return-to-zero feature during measurement
失效
具有归零功能的电子指示器和补偿线圈，用于在测量期间取消归零功能
- 专利标题： Electric indicator with return-to-zero feature and compensating coil to cancel the return-to-zero feature during measurement
- 专利标题（中）： 具有归零功能的电子指示器和补偿线圈，用于在测量期间取消归零功能
-
申请号： US275977申请日： 1981-06-22
-
公开(公告)号： US4492920A公开(公告)日： 1985-01-08
- 发明人: Arthur L. Reenstra
- 申请人： Arthur L. Reenstra
- 申请人地址： NH Penacook
- 专利权人： Beede Electrical Instrument Co., Inc.
- 当前专利权人： Beede Electrical Instrument Co., Inc.
- 当前专利权人地址： NH Penacook
- 主分类号： G01R5/14
- IPC分类号： G01R5/14 ; G01R5/16 ; G01R7/06 ; G01R1/20
摘要：
An air core meter movement having return-to-zero means. Permanent magnets mounted within the deflection coils provide a field which interacts with the rotor magnet to return the pointer to zero when no power is applied to the meter. A compensating coil is also included to counteract the effects of the permanent magnets when measurable signals are applied to the deflection coils.
公开/授权文献
- US5502144A Composition and method for preparing silicone elastomers 公开/授权日：1996-03-26
信息查询
