It’s the latest in instrumentation for the well-appointed shop — an acoustically coupled fast Fourier transform tachometer. Sounds expensive, but it’s really just using a smartphone spectrum ...

The microcontroller in the photo-tachometer then does some simple maths – twenty pulses in one second, multiplied by 60 seconds – and we get a rotational speed of 1200 revolutions per minute ...

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.

This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...

Equipment; Worksite Equipment; SafeGauge SafeTest Wireless Tachometer Series. This solution removes technicians from the live work area while measuring the speed of fans, pumps, drill heads and ...

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.

Dear Car Talk: I have a new 2017 Honda Ridgeline. The speedometer is digital; it shows numbers only. It has no dial. However, it still has an analog tachometer. The transmission is an automatic ...

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 ...