The digital tachometer circuit

Published:2011-6-6 11:48:00 Author:qqtang | Keyword: digital tachometer | From:SeekIC

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The circuit mainly consists of the magnetic disc with permanent magnet, Hall integrated sensor, strobing gate circuit, time-based signal circuit, power supply and digital display circuit, etc. The counting and digital display circuit are fixed with CMOS-LED digital display component CLIO2, and it can count and displaying digits. The input axis of the rotating disc and the rotating axis under test are connected, when the axis is rotating, the rotating disc is running with it. When the little permanent magnet crosses the Hall integrated circuit IC1, IC1 will switch the magnetic signal into the rotating speed signals.

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