A CHARACTERISTICS OF LINEARITY AND SENSITIVITY IN MEASURING THE MQ-4 SENSOR ON GAS LINE LEAKAGE

Arif Harjanto; Fatkhul Hani Rumawan; Didit Suprihanto; Haviluddin Haviluddin; Bangkit Bekti Nurdianto

doi:10.20884/1.jutif.2022.3.2.229

Arif Harjanto Teknik Elektro, Fakultas Teknik, Universitas Mulawarman, Indonesia
Fatkhul Hani Rumawan Teknik Elektro, Fakultas Teknik, Universitas Mulawarman, Indonesia
Didit Suprihanto Teknik Elektro, Fakultas Teknik, Universitas Mulawarman, Indonesia
Haviluddin Haviluddin Informatika, Fakultas Teknik, Universitas Mulawarman, Indonesia
Bangkit Bekti Nurdianto Teknik Elektro, Fakultas Teknik, Universitas Mulawarman, Indonesia

DOI: https://doi.org/10.20884/1.jutif.2022.3.2.229

Keywords: House-gas Pipeline, Linearity, Sensitivity, MQ-4 Sensor, Natural Gas

Abstract

A natural gas utilization with a domestic house-gas pipeline is essential. However, the house-gas installation pipe can cause a dangerous leak, so the house-gas leak detector is requires. This study aims to build and analyze a leak detector for natural gas flow on the stove using the MQ-4 gas sensor based on the house-gas linearity and sensitivity characteristics levels in the air with a threshold of 1000 ppm. Based on experimental, the sensor linearity value for the detected house-gas has been obtained in a correlation coefficient of 0.99 which indicates the sensor is quite sensitive in order to the house-gas detected. Then, the sensor sensitivity value has been acquired with the regression equation Y=-0.00449+(0.000481)X which means the voltage value at 0 ppm is around -0.00449 volts and increase at each ppm are 0.000481 volts with a value of 0.000481 volts with the effectiveness of the tools reaches 100%. Therefore, the study shown that the detection tools and systems can work properly.

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