Switch Tachometer
Print Overview
In a switch tachometer, a periodical breaking and closure of electrical contacts are provided by a cam or an eccentric disk fixed on the rotating shaft and controlling the operation of the contacts through a mechanical link. The number of closures of the electrical contacts is proportional to the speed.
Switch tachometer, w = angular speed, 1 = electrical contacts, 2 = eccentric disk,
3 = mechanical link.
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