Microcontroller based tachometer full project with. In this system, an atmega16 microcontroller is used along with an lcd display and an. The range is reliable as an indicator for user to minimize motorcycle machine wearing. Rpm is shown on lcd display for the two directions.
This article is about a contactless digital tachometer using arduino. Advantages of contactless tachometerover traditional. Contactless digital tachometer pdf simple but accurate digital tachometer using microcontroller has a resolution of 1 revsec. The board is equipped with set of digital and analog inputoutput pins that may be interfaced o. The tachometer has capability to count rpm motorcycle machine 1,000. Digital tachometer period measurement principle for. In this application ir frequencies are used to calculate the speed of the motor. Tachometer is a device which is used to measure the revolution speed of any rotating object. Design and construction of tachometer using arduino microcontroller free download as powerpoint presentation. About what are the advantages of contactless digital tachometer is not asked yet.
Today, we are going to make a digital tachometer based on a pic microcontroller that requires no physical contact with the rotating shaft to measure its rotational speed. The circuit diagram of the digital tachometer using arduino is shown below. Instead of a slotted sensor, it has a reflection based sensor. Tachometer, atmega16 microcontroller, infrared module, dc motor 1. Atmega16 microcontroller, infrared module, dc motor. The device usually displays the revolutions per minute rpm. The speed of the motor can be also controlled using the same circuit.
Microcontrollerbased tachometer a tachometer is nothing but a simple electronic digital transducer. What makes this device special is that it can very accurately measure the rotational speed of a shaft without even touching it. Introduction a contactless tachometer will let you know how quickly something spins and is frequently used for buses. Pdf analog tachometer as an indicator motorcycle machine. Contactless digital tachometer project is designed to measure speed of dc motor using pic18f46k22 microcontroller.
A good example is on cars, you will see a tachometer counting the rpms of your engine. This paper is about contactless digital tachometer designed using infrared methodology. Speed of an electric motor is determined by the number of revolutions made by the motor in one minute. As ir transmits ir rays which reflect back to ir receiver and then ir module generates an output or. Traditional tachometers require a physical contact to the shaft of the motor to measure the speed. The arduinouno is microcontroller which is shown in. A microcontroller based tachometer is a device that measures the rotation speed of a shaft or disk in motor or other machines 1. The device is designed for contactless measuring and monitoring temperature of objects. Infrared sensor is used to measure the rotational speed of locomotives or cars. Design of a contactless tachometer open access journals. Advantages of contactless tachometerover traditional the current design is an embedded application which is used to calculate the speed of the motor without the need of tachometer. Contactless tachometer using 8051 microcontroller made by siddharth shahi prashant kumar 2. Contactless tachometer using arduino uno with codes.
This non contact tachometer version uses a sensor that will sense revolutions. Thus, it is clear that the method of contactless tachometer is a technique that worthy of being developed. In certain applications, where it is not feasible to measure the. Tachometer, atmega16 microcontroller, infrared module, dc motor. You dont have to worry about the thickness of the rotor2. There are two types of tachometer one mechanical and other one is digital. Advantages of contactless tachometer over traditional the current design is an embedded application which is used to calculate the speed of the motor without the need of tachometer. Those pulses will be fed to the microcontroller and counted. The physical contact is avoided by using an optical detection technique that requires an infrared light emitting diode in conjunction with a photo detecting diode. Design of a lowcost contactless digital tachometer citeseerx. Here we are going to design an arduino based digital tachometer using ir sensor module to detect object for count rotation of any rotating body.
Here, in this project, we designed a simple non contact or contactless digital tachometer using 8051 microcontroller, which can measure speed with an accuracy of 1 revsec. It shows rps speed on lcd and tachometer setting can be changed from simple push buttons. The aim of this project is to implement a microcontroller based contactless tachometer. 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.
These devices are readily available, cost e ective and are solid state, therefore have a long and reliable working life as no wear and tear other than that of cur. Where would a microcontroller be without some way of communicating with the outside world. Microcontrollers tutorials and projects, pic microcontroller, 8051, avr, arduino, esp32, esp8266, respbarry pi and embedded systems projects and tutorials. Contactless digital tachometer using 8051 microcontroller. With the new smaller microcontrollers and some simple circuitry, its actually very easy to build your own digital tachometer. Digital tachometer period measurement principle for rotational speed flow rate ratio proportional difference rs 422485 interface c unique simultaneous acquisition of input frequencies lead to higher accuracy in ratio and proportional. Contactless digital tachometer using pic microcontroller. Tachometer is a device used for measuring the number of revolutions of an object in a given interval of time. Attractive feature of this is it measures speed without any physical contact with shaft or motor.
Pdf implementation of low cost microcontroller based digital rpm. Design of a portable contactless tachometer using infrared. This instructable will show you how to make a portable digital optical tachometer using an arduino uno. The efficiency depends on both the proximity sensor and the reflective element passing in front of it. Tachometer using at89s52 microcontroller with motor control. Salice peter 1, naveen n m 2, nidheesh m n 2, swethaannu james 2. If anyone has doubts regarding this project, please use forum for more detail. How to make a contactless digital tachometer using ir.
The tachometer can measure up to a maximum of 255 revsec at an accuracy of 1 revsec. Attractive feature of this is it measures speed without any physical contact with. Introduction a tachometer is a device which measures the speed of a rotating object like an. Digital tachometer using 8051 microcontrollercontactless. Introduction to digital tachometer circuit working with. As we already posted an articles on how to control speed of dc motor using pic microcontroller.
Digital tachometer using 8051 microcontrollercontactless type is the artlcle explaining digital tachometer using 8051 microcontroller a tachometer is. Contactless digital tachometer using pic microcontroller a tachometer revolutioncounter, tach, revcounter, rpm gauge is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The tachometer use an optical pickup scheme for picking. Digital tachometer using arduino plus motor speed control. This contactless tachometer is not only useful in terms of safety, but it is also very efficient. This noncontact tachometer is implemented to design a threedigit contactless digital tachometer by using 8051 microcontroller which can be used for measuring the revolutions of a wheel, disc, shaft etc. In automotive use, it is used as a gauge showing the speed rpm of the engine shaft that is driving the transmission, usually in thousands of rotations per. The number of revolutions per minute rpm is valuable. Build a digital tachometerrpm counter introduction. A tachometer is a device that measures the rotation speed of a shaft or disk, as in a motor of other machine.
The basic principle behind the contactless digital tachometer involves a simple embedded system with a sensor, a controller and an actuator. Design and development of a smart digital tachometer using. A three digit contact less digital tachometer using 8051 microcontroller which can be used for measuring the revolutionssecond of a rotating wheel, disc, shaft or anything like that is introduced in this project. Design and construction of tachometer using arduino. This chapter includes the study of different types of tachometer, sensor, microcontroller pic 16f877, microcode studio and proteus 7 professional. The sensor senses the speed of the motor without actually being in contact with it by the principle of light transmission and reflection and. This easytomake microcontroller based tachometer measures the rpm of most shopfloor tools and many household machines without any mechanical or electrical interface. Abstract a microcontroller based tachometer is a device that measures the rotation speed of a shaft or disk in motor or other. 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 revsec. Normally, it is used for measuring the speed of a rotating shaft. Tachometer using at89s52 microcontroller with motor control using h bridge method we, in this project are measuring the rpm of a motor using an ir sensor. The motor speed and direction is made variable by use of a hbridge method.
Contactless position sensing and control of pneumatic. Ee 331 design project final report u of s engineering. In other words, speed is measured in rpm revolutions per minute. This tutorial will make use of an infraded diode and detector to build the digital tachometerrpm counter. The main difference between this tutorial about tachometer and frequency meters, is that we need. Contactless tachometer using 8051 microcontroller2 1. You may also want to measure the speed of fans you use. Contactless ir tachometer nikhil kumar1 harshit morwal2 shreyash raj3 ashwani kumar4. The sensor used here is infrared ir transmitter receiver pair, the controller used is the 8051 microcontroller loaded with a compiled code and the actuator is a display device, for displaying the speed of the motor.
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