Universal, economical tachometer measuring rotational or surface speed either in contact or non-contact way. Universal, economical tachometer measuring rotational or surface speed either in contact or ...

Here we designed a simple non contact tachometer using microcontroller which can measure speed with an accuracy of 1 rev/sec. Here we design a simple non-contact tachometer using microcontroller, ...

It’s often necessary to measure a motor’s rotational speed without any physical contact with the motor or its shaft. Some methods use a mirror attached to the motor’s rotating part to reflect a pulsed ...