lpg gas leakage detection alarm full report

In this article we will be discussing about a home security alarm circuit. This is a LPG gas leakage sensor circuit that detects the outflow of LPG gas and alerts the user via audio and visual indications. The heart of this simple engineering project is a gas sensor module SEN 1327. QM 6 gas sensor is used in this SEN 1327 module. The output signal from this gas sensor module is used to drive a 555 timer astable multivibrator. Here 555 timer works as a tone generator, the frequency of tone can be alt ....etc

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. ENGINE OVER HEATING ALARM AND TEMPERATURE CONTROL SYSTEM Synopsis Now a day, Machines are widely controlled by embedded system. To meet the need of exploding population economic and effective control of machines is necessary. The main theme of our project is to maintain the constant temperature of engine and prevent the engine from the over heating Today every vehicle are controlled by the control engine management system, in this system the total vehicle is control by 64 bit processor, here in our project deals about the temperature monitori ....etc

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The gas leakage alarm circuit operates off a 9V PP3 battery.
Zener diode ZD1 is used to convert 9V into 5V DC to drive the
gas sensor module. A preset in the module is used to set the
threshold. Interfacing with the sensor module is done through a
4-pin SIP header.
Whenever there is LPG concentration of 1000 ppm in the
area, the OUT pin of the sensor module goes high. This signal
drives timer IC 555, which is wired as an astable multivibrator.
The multivibrator basically works as a tone generator.
Output pin 3 of IC 555 is connected ....etc

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To get full information or details of major project of gas leakage detection auto on off gas system circuit diagram ppt please have a look on the pages

http://nieclko.acdocs/LGEC005_LPG_GAS_Leakage_detection_for_cars%5B1%5D.pdf

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gas leakage alarm ppt

LPG gas is supplied in pressurized steel cylinders. As this gas is heavier than air, when it leaks from a cylinder it flows along floor and tends to settle in low spots such as a basement. This can cause fire or suffocation if not dealt with. Here is a circuit that detects the leakage of LPG gas and alerts the user through audio-visual indications.This LPG Gas Sensor (MQ6), ideal sensor for use to detect the presence of a dangerous Liquefied petroleum gas (LPG) and it has high sensitivity to propane, butane, isobutene, na ....etc

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