How to measure motor speed using clamp meter @ThomasKim

How to measure motor speed using clamp meter @ThomasKim

Uploaded June 2026 | Updated September 2026, 3 hours ago

The speed of rotation can be measured using a neodymium magnet & clamp meter.

This experiment using an HDD spindle motor & 3phase AC power.

HDD spindle motor is 8 pole synchronous motor.

How to measure motor speed using clamp meter

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How to measure motor speed using clamp meter