Daido Metal Company Ltd.

Yukihiro Imaeda

Kotaro Kashiyama

Minoru Ichikawa

A flow detector according to the present invention is arranged in a fluid piping circuit, or at an inlet or an outlet of the fluid piping circuit and has a fluid inlet and a fluid outlet, and further comprises a piston having a magnetic member as a part thereof and reciprocated by pressure difference of the fluid between the fluid inlet and the fluid outlet, a fixed magnetic member positioned at a predetermined distance from the piston, and a detection sensor arranged in a position where the detection sensor is subject to alternate magnetic action from the magnetic member of the piston when the piston is reciprocated at a predetermined stroke, for detecting a flow of the fluid in response to change in the magnetic action.

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Inuyama, Japan

Yukihiro Imaeda