contactless tachometer circuit with code

Contactless tachometer using pic microcontroller: Contactless digital tachometer project is designed to measure speed of dc motor using PIC18F46K22 microcontroller. As we already posted an articles on how to control speed of dc motor using pic microcontroller. But to measure speed of dc motor, we have to measure motors revolutions per minutes. There are many digital tachometers available in market. But all ...

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How to make a contact-less digital tachometer using IR-light reflection technique

Tachometer is a device that measures the rotational speed of any shaft or disc. The unit of the measurement is usually revolutions per minute or RPM. The traditional method of measuring RPM of a rotating shaft was based on velocity feedback concept where a dc generator is hooked to the rotating shaft so that the voltage induced across the generator’s terminals is proportional to the speed of the shaft. Toda ...

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How to make a contact-less digital tachometer using IR-light reflection technique

Tachometer is a device that measures the rotational speed of any shaft or disc. The unit of the measurement is usually revolutions per minute or RPM. The traditional method of measuring RPM of a rotating shaft was based on velocity feedback concept where a dc generator is hooked to the rotating shaft so that the voltage induced across the generator’s terminals is proportional to the speed of the shaft. Toda ...

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Build A Digital Tachometer/RPM Counter using PIC18F452

A tachometer is a tool that mechanics or engineers in general use very often. A normal tachometer will be able to tell you how fast something is moving in a complete rotation. A good example is on cars, you will see a tachometer counting the RPMs of your engine. With the new smaller microcontrollers and some simple circuitry, it's actually very easy to build your own digital tachometer. This tutorial will m ...

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