An 8-pole motor runs half that fast, and a 2-pole motor runs twice that fast. Let’s examine a few things that could go wrong, and you’ll see why tachometer testing is essential to properly completing ...

That’s what happened when [Glen Akins] came across a tachometer for a jet airplane, which he promptly turned into a unique CPU utilization gauge for his computer.

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.

It’s a good bet most anyone reading this article is quite familiar with the bright yellow 1957 Chevy 2-door coupe that’s known as Project X. This article on how ...

Aftermarket tachometers have been around for decades but in our market segment we've seen a paradigm shift away from the monster-tachs of days gone by to newer, lighter, more precise units. The ...

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

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.

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 balanced ...

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 ...

This is one of the first videos of the new Lamborghini Aventador LP700-4 revving its mighty 700-horsepower, 6.5-liter V-12 engine--and though the sound quality isn't great, it holds the promise of ...