Impeller-type flowmeter having a resin case with insulating material arranged between a metal coil case and an amplifier case

A flowmeter includes a metallic body that has a flow path therein, an impeller that is rotatably supported in the flow path inside the body, a pickup coil that is configured to detect a number of rotations of the impeller, the pickup coil being disposed outside the body, a coil case that is made of...

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Bibliographische Detailangaben
Hauptverfasser: Sekine, Tetsuaki, Tobimatsu, Shinji, Kawamoto, Takahiro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A flowmeter includes a metallic body that has a flow path therein, an impeller that is rotatably supported in the flow path inside the body, a pickup coil that is configured to detect a number of rotations of the impeller, the pickup coil being disposed outside the body, a coil case that is made of metal, and accommodates the pickup coil, an amplifier circuit board that is configured to amplify a detection signal of the pickup coil, and an amplifier case that is made of resin, and accommodates the amplifier circuit board. The coil case and the amplifier case are connected via a resin case that is made of resin and includes an insulation material therein.