发明名称 Liquid level sensing apparatus
摘要 In a liquid level sensing apparatus, a rotating part is fixed with an arm. The arm is arranged to rotate in accordance with a liquid level. The rotating part is supported rotatably on a bearing portion of a housing. A magnet is housed in the rotating part. A magnetoelectric transducer element fixed to the housing is arranged to perform a magnetic detection to convert an intensity of a magnetic field produced by the magnet to an electric signal. The rotating part is formed with an exposure hole exposing a surface of the magnet. The exposed surface of the magnet is located out of a magnetic circuit subjected to the magnetic detection of the magnetoelectric transducer element.
申请公布号 US6993968(B2) 申请公布日期 2006.02.07
申请号 US20040014828 申请日期 2004.12.20
申请人 HITACHI, LTD. 发明人 KOGURE YOSHIHIRO
分类号 G01F23/38 主分类号 G01F23/38
代理机构 代理人
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