Open AccessCarbon Monoxide Sensor Based on Non-Dispersive Infrared Principle
Author(s) -
Reza Diharja,
Muhammad Rivai,
Totok Mujiono,
Harris Pirngadi
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1201/1/012012
Subject(s) - thermopile , carbon monoxide , incandescent light bulb , infrared , combustion , absorption (acoustics) , carbon dioxide sensor , analytical chemistry (journal) , tunable diode laser absorption spectroscopy , materials science , carbon dioxide , light intensity , optics , chemistry , optoelectronics , environmental chemistry , wavelength , biochemistry , physics , organic chemistry , distributed feedback laser , composite material , catalysis
Carbon monoxide (CO) is one of the toxic air pollution produced in incomplete combustion of carbon-containing fuels. At a certain threshold of concentration, this gas can harm the environments and affect the human health. Unfortunately, it cannot be detected by humans. In this study, CO gas detection has been designed and constructed using the principle of Non-Dispersive Infrared (NDIR). An incandescent light bulb is used to provide infrared source. An optical filter based on interferometry with a bandpass of about 4.63 μm is used to pass the light which corresponds to the CO gas absorption. The TPS 334 thermopile sensor is used to measure light intensity after gas absorption. The built-in RTD in the thermopile is involved to compensate the results of the gas concentration measurement. The experimental result shows that this NDIR sensor can measure CO gas concentration with a sensitivity of about 7 mV / ppm.