| 摘要 |
A self-balancing type level gauge apparatus is disclosed, in which the change of a magnetic flux generated between coupling outer and inner magnet rings on the basis of a displacement between the coupling outer and inner magnet rings due to the displacement of a liquid level to be gauged is converted to an electrical signal which is used to gauge the liquid level to thereby reduce the mechanical portion which causes a mechanical friction so that the level gauge apparatus can be improved considerably in level gauging detection sensitivity.
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