Contactless tachometer using pic microcontroller: Contactless digital tachometer project is designed to measure speed of dc motor using PIC18F46K Simple but accurate digital tachometer using microcontroller Has a resolution of 1 rev/sec. The tachometer use an optical pickup scheme for picking . Buy Digital Photo Laser Tachometer Non Contact Tach RPM Meter: Tachometers – ✓ FREE DELIVERY possible on eligible purchases.

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Turn on 1-Click ordering for this browser. Tachometer using arduino praveen January 13, 10 Comments. You have to test and calibrate your sensors based on application.

Keep this in mind while selecting the load. As a result the will be an interrupt for every contatless shoot in the emitter waveform. So keep that in mind when you are using.

Contactless digital tachometer using 3 digit display and measures upto rev/sec

It’s not a tool I’ll use every month, but for the price it’s worth it for how much I’ll use it. Thus, connection between the IR transceiver closed at each slots and current passes through the circuit. Digital tachometer using arduino plus speed control. I used frequently in the shop to check speed of equipment.

When the speed of the motor is above a fixed value, a buzzer is alarmed and an LED indication is given. To take tachometre measurement, apply a reflective mark included in package onto the target object, aim the laser beam at the mark, the RPM displays on the LCD screen. Alexa Actionable Analytics for the Web.


Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. I feel the unit, especially for the price, would be worth it had the laser dot not been cut off.

Withoutabox Submit to Film Festivals. See all customer images. It works on the principle that the number of times the IR receiver-transmitter circuit is cut and re-established in a second gives the number of rotations per second.

Technical Details

Amazon Advertising Find, attract, and engage customers. I was only turning around I have a problem in the optical pick up assembly.

Interfacing Nokia Display to Micro Controller Moisture sensing automatic plant watering system using V remote to operate properly from distance of 5m at the most, on a sunny day with average temperature of Kelvin. What is contactlexs cost of the whole circuit?

It looked like the portion where the laser dot is generated within the unit had shifted in mfg. Can be used for HVAC applications in contactlsss fan speed.

I found though that it would not work in the sunlight it apparently couldn’t see the reflection. I hope this helpsit worksand beyond that–I have explained how and some of the issues I noticed. This item can be shipped to select countries outside of the U.

When the speed of the motor again comes back to less than 29 rps, the LED and the buzzer stopped. Speed of a motor is one of the important factors to be considered while dealing with dc motors. This is for my study and teaching the program how to srite Thanks a lot for the Originators. C remotes use IR sensors to operate. The IR Contwctless converts the incident IR contactlsss to an equivalent electric current which when passed through a resistor results in a certain amount of voltage drop.


Please make sure that you are posting in the form of a question. Included a case and probably ‘ of reflective tape that cpntactless a nice adhesive on it. You an use Keil to code, compile and test the program code. The value is displayed on the LCD display. The photo transistor and IR diode are aligned side by side. Would you like to tell us about a lower price? The tachometer checks the RPM by sensing that reflection when it goes by. Measures the rotational speed with a visible red light beam from a powerful Contactlezs.

Shopbop Designer Fashion Brands. The logical place seemed to be on the sprocket cover, with the chain off, but the reflective tape wouldn’t stick at the required rpms because the metal cover was too smooth.

Design of a Contactless tachometer

Attractive feature of this is it measures speed without any physical contact with shaft or motor. This value of voltage will depend upon the intensity of incident IR radiations or in other words, the distance between IR transmitter and receiver. In real time applications an IR transceiver module can be used instead of the transmitter receiver pair. Your project is amazing and it works fine. Share your thoughts with other customers.