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 ...

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 ...

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.