Get Microcontroller Based Four Digit Tachometer Form

In the case of this tachometer, the counted pulses will come from proximity sensor, which will detect any reflective element passing in front of it, and thus, will give an output pulse for each and every rotation of the shaft.

Other significant advantages digital tachometers can have over analogue tachometers include; the ability to change units of measurement, recall last readings, and view minimum, maximum, and average measurements.

While a conventional tachometer is a contact tachometer, which can produce erroneous results due to change in contact parameters, a Contactless digital tachometer is preferred which doesn't requires any contact with the device whose speed is to be measured.

Digital tachometer – It is a digital device that measures the speed of the rotating object. It is an optical encoder that identifies the angular velocity of a rotating shaft or motor. It is commonly used in automobiles, airplanes, medical and instrumentation applications.

Digital tachometer – It is a digital device that measures the speed of the rotating object. It is an optical encoder that identifies the angular velocity of a rotating shaft or motor. It is commonly used in automobiles, airplanes, medical and instrumentation applications.

A contactless tachometer is a device which uses infrared sensor and a microcontroller like 8056 or arduino to measure up the speed of the running motor and based on a pre set value the cut off circuit present cuts off the supply of the motor when its speed starts to grow above the desired or the recommended value.

In the case of this tachometer, the counted pulses will come from proximity sensor, which will detect any reflective element passing in front of it, and thus, will give an output pulse for each and every rotation of the shaft.

The speed computed by the microcontroller is given to a 16x2 LCD system to display the output. 3. WORKING AND CIRCUIT OPERATION. Contact less tachometer is a device used to measure speed of a motor by counting the number of rotations per second of a rotating shaft using micro controller.