For example, let’s say we have a motor spinning at 1200 revolutions per minute. We aim the photo-tachometer’s beam at the white spot we’ve marked on the motor’s shaft.

Many factors may affect the rotational speed of a motor system at the final output shaft (e.g., gearbox shaft). Using a tachometer to test a motor’s speed when disconnected from its load and again ...

Without having a tachometer we wouldn’t be able know where the ’67 was shifting, or how many revs it was turning going through the traps—not to mention what it was revving at freeway speeds.

I installed the 3-3/4-inch tachometer that displays 0 to 8,000 rpm in 100-rpm increments because there is no way I'll spin the 4.3L V-6 anywhere near eight grand.

[Glen]’s investigation revealed a 3-phase synchronous motor inside the tach. The motor drives a permanent magnet, which spins inside a copper cup attached to the needle on the tach’s face.

Q: I've wondered for a long time why most automobile manufactures include a tachometer in their instrument display. Is it a symmetry issue; they'd like their display to have a ...

ServoTek Products Inc. announced the successful application of its TachSyn Series brushless DC tachometer/commutator within industrial motor speed monitoring applications. The high-accuracy ...

The tachometer displays engine speed in revolutions per minute, and it can be useful in cars where there’s a provision to control automatic-transmission gear changes.

Marsh Bellofram Corporation, a member of the Bellofram Group of Companies, has introduced its WESTCON Model 758-9905000, an industrial AC tachometer generator, designed for high ...