Digital tachometer using 8051 microcontrollercontactless. 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. 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. This article decribes a digital tachometer for angular position and speed measurement. A digital rpm meter is a measuring instrument which can measure the rotational speed of a rotary machine digitally. Following diagram explains the logic of this project.
Digital tachometer using arduino plus motor speed control. I inspired to make this project when i need to measure the rpm of dc motor, then i started to make contactless tachometer. Contactless digital tachometer using pic microcontroller. Aug 07, 2017 the basic principle behind the contactless digital tachometer involves a simple embedded system with a sensor, a controller and an actuator.
Introduction to digital tachometer circuit working with. Contactless digital tachometer using you an use keil to code, compile and test the program code. Contactless tachometer muhammad izzat bin zakariah this. Digital tachometer general digital tachometers are particularly suitable for the precision measurement and monitoring of all time related quantities, which are able to be converted into a proportional frequency using appropriate sensors timerelated quantities include rotational and linear velocity, flow rate and related quantities.
Hima varsha indian institute of technology hyderabad introduction definition. In contact mode, the checkline cdt 2000 hd touches the rotating object with specially designed tips. Indian institute of technology hyderabad introduction definition. Checklines contactless mode provides accurate measurements from up to 24 60. Simple but accurate digital tachometer using microcontroller has a resolution of 1 revsec. Design of a contactless tachometer open access journals. Contactless digital tachometer using 8051 page link. Components an electrical wheel coloured as instrument used to required measure the speed of micro a rotating object with controllerat89c52 out any physical ir sensor contact. Digital tachometer period measurement principle for.
Aug 24, 2019 contactless tachometer using pic microcontroller. In contactless mode, this handheld digital tachometer uses a visible beam of light that reflects off reflective tape placed on the rotating object. Jul 14, 2019 contactless digital tachometer using 3 digit display and measures upto revsec. In general these tachometers can measure through a distance of 1m components wheel. How to make a contactless digital tachometer using ir. Contactless digital tachometer pdf simple but accurate digital tachometer using microcontroller has a resolution of 1 revsec. Introduction to digital tachometer circuit working with 8051. This project is about a contactless digital tachometer. 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. The electrical tachometer converts the angular velocity into an electrical voltage.
Depends on the natures of the induced voltage the electrical tachometer is categorized into two types. 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. Contactless digital tachometer using 8051 posted by. Aug 04, 2019 contactless tachometer using pic microcontroller.
Pdf digital tachometers for speed and position measurement. Contactless analogue tachometer the tachometer employs a standard cathoderay tube as a voltage to lightspot position actuator, a black white contrast edge on a diameter of the shaft end, and a photomultiplier light detector. 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. Bonert digital tachometer with fast dynamic response implemented by microprocessor, ieee trans. The basic principle behind the contactless digital tachometer involves a simple embedded system with a sensor, a controller and an actuator. This kind of tachometers requires regular maintenance and is complicated to use.
Oct 30, 2018 contactless digital tachometer circuit. The tachometer use an optical pickup scheme for picking. Digital tachometer using 8051 microcontrollercontactless type is the artlcle explaining digital tachometer using 8051 microcontroller a tachometer is basically used to measure angular speed of a motor. But to measure speed of dc motor, we have to measure motors revolutions per minutes. This contactless tachometer is not only useful in terms of safety, but it is also very efficient. 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. Contactless digital tachometer using 8051 electronics. A tachometer is basically used to measure angular speed of a motor. Contactless tachometer rpm counter and balancer part1.
The infra red reflective object sensor work by simply emitting the infra red beam and when it encounter the white object surface than the infra red beam will be reflected back to the phototransistor. Thus it is mostly used for measuring the rotational speed of the shaft. Time measurement digital tachometer a tachometer that calculates the speed by measuring the time interval between incoming pulses is known as a timebased digital tachometer. Homemade contactless digital tachometer rpm counter and balancer made around an lcdg, a combo controller and display based on an avr micro controller atmega32 and programmed in c with the nsc. A digital tachometer is a digital device that measures and indicates the speed of a rotating object.
Motor in general these tachometers can battery measure through a. This article is about a contactless digital tachometer using arduino. Bonert digital tachometer with fast dynamic response implemented by. A digital tachometer circuit comprises lcd or led readout and a memory for storage. 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. Contactless digital tachometer project is designed to measure speed of dc motor using pic18f46k22 microcontroller. The module is connected to the pc through serial port. The electrical tachometer has more advantages over the mechanical tachometer. Digital tachometer using 8051 circuit wiring diagrams. Sep 03, 2015 pickup tachometer various pickup devices can be used in conjunction with a digital counter to give a direct reading of speed.
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. An electrical instrument used to measure the speed of a rotating object with out any physical contact. Design and construction of tachometer using arduino. The tachometer can measure up to a maximum of 255 revsec at an accuracy of 1 revsec. Tachometer is a device which is used to measure the revolution speed of any rotating object. Design and development of a smart digital tachometer using. Hence there is a requirement for a contactless digital tachometer which can be easily used with monitoring system. May 29, 2019 contactless tachometer pdf posted on may 29, 2019 by admin contactless tachometer using pic microcontroller. As we already posted an articles on how to control speed of dc motor using pic microcontroller. Dec 15, 2016 this project is about a contactless digital tachometer. Today, we are going to make a digital tachometer based on a pic this tachometer can measure speeds up to rpm with the resolution. Salice peter 1, naveen n m 2, nidheesh m n 2, swethaannu james 2.
The circuit diagram of the digital tachometer using arduino is shown below. The resolution of this tachometer is independent of the speed of the measurement, and it is more accurate for measuring low speed. A rotating object may be a bike tire, a car tire or a ceiling fan, or any other motor, and so on. As the individual teeth pass the coil they induce an e. Design and construction of tachometer using arduino microcontroller free download as powerpoint presentation. 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. 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. A tachometer that calculates the speed by measuring the time interval between incoming pulses is known as a timebased digital tachometer. The industrial name of this instrument is tachometer. The electrical tachometer in turn can be an ac tachometer or a dc tachometer. The rpm and all the other informations are displayed on a 16.
Contactless digital tachometer by using 8051 this noncontact tachometer is implemented to design a threedigit contactless digital tachometer by using 8051 microcontrollers which can be used for measuring the revolutions of a wheel, disc, shaft, etc. Tachometer hand tachometer noncontact and contact measurement using an adapter measurement for hard to reach areas using the remote sensor 6. Thus, it is clear that the method of contactless tachometer is a technique that worthy of being developed. Digital tachometers are more common these days and they provide numerical readings instead of dials and needles. This is my another instructable contactless tachometer using arduino and ir sensor. The efficiency depends on both the proximity sensor and the reflective element passing in front of it. Jan 25, 2017 digital tachometer using 8051 microcontroller contactless type is the artlcle explaining digital tachometer using 8051 microcontroller a tachometer is basically used to measure angular speed of a motor. The device usually displays the revolutions per minute rpm. Contactless digital tachometer using 8051 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 revsec. Digital tachometers are more common these days and they provide numerical readings instead of. The speed of the motor can be also controlled using the same circuit. Best guide to learn about contactless digital tachometer, a diy project do it yourself using 8051 about this course it is designed for anyone who are interested in developing 8051 based projects and this will introduce the 8051 hardware and programming environment to get you started on building projects the course is divided into several detailed sections for easy. It can be mechanical device with a warm gear and spindle arrangement or an electrical device which converts the angular speed into electrical signal. Contactless tachometer free download as powerpoint presentation. Infrared sensor is used to measure the rotational speed of locomotives or cars. The tachometer has been implemented using two simple fpgas, defining an external hardware that discharges the. The idea behind most digital counting device, frequency meters and tachometers, is a microcontroller, used to count the pulses coming from a sensor or any other electronic device. Frequency measurement digital tachometer a tachometer that calculates. An inductive pickup tachometer is shown in figure a.
1474 833 1010 585 1511 1164 68 555 1245 1424 924 1478 207 814 84 1030 1540 142 1433 1578 1305 302 786 352 575 1042 758 532 1444 1047 1211 376 77 659 813 507 291 847 853 26 4 179 507