International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
CONTACTLESS TACHOMETER WITH AUTO CUT OFF PRATEEK MISHRA1, SHIKHAR PRADHAN2, SIDDHARTHA SETHIYA3, VIKAS CHAUDHARY4, 1234Student,
Dept. Of Electronics and Communication Engineering, IMSEC, Uttar Pradesh, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This paper provides us with a detailed study on how to develop a contactless base tachometer and cutting off a motor automatically using sensors. By this the current running status of a motor can be provided and based on that information one can cut the supply at higher voltages. Nowadays in industries due to failure of power regulation devices sometimes higher voltage surges occur due to which the costly devices are drastically affected , shot circuit often prevails due to which the motors have to be replaced. The solution to these issues was to monitor the speed of the motor ,this circuit can be placed to monitor the running of a motor. The circuit would keep a track of the running speed of motor and would cut off its supply if any situation where the motors would blow up is created. This system can be used anywhere from industries to homes and also from long distances by using a GSM (Global Standards for Mobile Communication) module . The system would send the current running status of motor to anyone residing in any part of world.
2. SYSTEM ARCHITECTURE 1.1 IR Sensor
It is an electronic device that is used to sense infrared radiations either by generating or detecting infrared radiations. The IR Sensors function by using a certain light sensor to detect a light wavelength in the IR spectrum. By the use of an LED, which produces light at the same wavelength as the sensor detects, we can study the intensity of the received light. At the time when the object is near the sensor, the light from the LED bounces off the object and into the light sensor. This results in increment in energy on a large scale intensity, which we can detect using a threshold.
Key Words: ARDUINO UNO, IR SENSOR, LM 317, PHOTODIODE, ROTATION
1.INTRODUCTION
1.2 Arduino UNO
As the world is growing out to the verge to technology the circuits and component structure of devices is rapidly shooting up. Thus the risk of things getting spoilt is directly matching up the pace. There are various instruments available to keep these sophisticated components safe and one such device is the 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 its speed starts to grow above the desired or the recommended value. The speed of the motor grows only and only when the incoming voltage grows and if the voltage gets out a particular range it can damage the motor or the circuit. This type of tachometer can also be installed before any type circuit and a motor or a fan can be used to judge the voltage based the rotational speed of the motor. Thus providing a way to safeguard different types of devices.
This embedded system belongs to the family of ATMEL. It consists of a single board that is capable of performing various operations. It is a 8 bit microcontroller with 32kb of flash memory and its pin diagram shows it having 14 digital and 6 analog pins used for various purposes like interfacing. It has a clock speed of 16 MHz.
In this paper we discussed through various researches what development has been done in the contactless tachometer and auto cutoff System and our proposed work regarding the following paper.
Š 2017, IRJET
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