scholarly journals Detection of LPG Gas by Using Multi Sensors Array and Fabricated ZnO Gas Sensor

2021 ◽  
Vol 2128 (1) ◽  
pp. 012005
Author(s):  
Iman Gamal Morsi ◽  
Mohamed Essam Khedr ◽  
Aya Gamal Eldin Aly
Keyword(s):  
Gas Sensor ◽  
Gas Sensors ◽  
Performance Prediction ◽  
Motor Fuel ◽  
Load Resistance ◽  
Gas Detection ◽  
Liquefied Petroleum Gas ◽  
Sensors Array ◽  
Semiconductor Gas Sensors ◽  
Domestic Appliances

Abstract The demand for LPG (Liquefied Petroleum Gas) detection constitutes a major and critical problem in the field of gas detection. LPG is used for domestic appliances used in the heating of buildings, producing petrochemicals and as a motor fuel. The current paper used the fabricated ZnO, in addition to TGS 813, TGS 2600, TGS 4160, TGS 3870, TGS 822 as semiconductor gas sensors, in varying temperature and load resistance in a prototype setup so as to explore each model’s accuracy for performance prediction for gas detection. The fabricated ZnO gas sensor is used also to detect the LPG. The comparison is done between gas sensors array and the fabricated one from ZnO. The actual results are put in comparison with the empirical algorithms’ predictions. The optimal model is found to be the full quadratic empirical model based on the lowest error with different sensors.

Design and Research on the Gas Monitoring System Based on LabVIEW

2013 ◽  
Vol 427-429 ◽  
pp. 1254-1257
Author(s):  
Kuan Gang Fan ◽  
Xin Zhang ◽  
Qing Mei Cao ◽  
Ying Fei Sheng ◽  
Le Ping Zheng
Keyword(s):  
Monitoring System ◽  
Gas Sensors ◽  
Remote Monitoring ◽  
Gas Detection ◽  
Alarm System ◽  
Gas Monitoring ◽  
Gas Concentration ◽  
The Core ◽  
Housing Environment ◽  
Semiconductor Gas Sensors

Gas detection alarm system plays a more and more important role in People's Daily life and every field. This paper proposes semiconductor gas sensors and SCM as the core, which could achieves the gas concentration monitoring and alarm functions. The gas monitoring system includes host computer that consists of LabVIEW operating interface and slave computer that constructed with AT89C51 microcomputer and MQ-2 gas sensor.It achieves remote monitoring and controlling housing environment in real-time and has a certain practical value in society.

Micro Sensor Operating at Room Temperature

2004 ◽  
Vol 828 ◽  
Author(s):  
Song-Kap Duk ◽  
Duk-Dong Lee
Keyword(s):  
Work Function ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Gate Voltage ◽  
Room Temperature ◽  
Film Surface ◽  
High Sensitivity ◽  
Gas Detection ◽  
Pani Film ◽  
Response Characteristics

ABSTRACTIn the study, low power micro gas sensors operated at room temperature for the detection of NH3 and NOx gases are proposed. As candidate material of gas sensor for NH3 gas detection at room temperature, polyaniline(PANi) synthesized by chemical polymerization was selected. And Te(Tellurium) thin film was used for NOx gas detection at room temperature. By using these sensing materials, micro gas sensors for room temperature operation were prepared and measured the response characteristics for NH3 and NOx.In case of PANi sensor, the structure was inverted staggered FET type having advantage of useful one for Lab-On-a-Chip. The operating principle of the sensor is based on the change in work function of PANi film caused by adsorption of gas molecules in air on the film surface. The change in work function was measured indirectly from that in gate voltage of the FET device. The responses to various gases (NH3, CH4, Methanol and CH3CN) were obtained in gate voltage step mode in R.H. 30%. And in case of Te sensor, the sensing material was thermally evaporated on glass substrate. The thickness and annealing temperature were 500 Å −2000 Å and 100 °C −300 °C, respectively. The Te-based micro gas sensor exhibited high sensitivity to NOx and good selectivity against CO and hydro-carbon gases. And by adding Ti to Te film, the sensor has a good selectivity to CO gas.

A review Report on Nanostructured Ferrites as Liquefied Petroleum Gas Sensor

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Satyendra Singh ◽  
B C Yadav ◽  
Monika Singh ◽  
Richa Kothari
Keyword(s):  
Gas Sensor ◽  
Gas Sensors ◽  
Review Paper ◽  
Spinel Ferrites ◽  
Present Review ◽  
Synthesis Methods ◽  
Liquefied Petroleum Gas ◽  
Sensing Mechanism ◽  
Further Development

<p>The present review paper reports the synthesis methods, status, prospects for further development, and sensing<br />applications of spinel ferrites. It introduces the inspiration of the nanostructured ferrites as gas sensors. It also explains<br />the types of gas sensors, sensing mechanism and requirement of liquefied petroleum gas sensor.</p>

Bayesian Estimation Algorithm Applying in Gas Detection Modules

2013 ◽  
Vol 284-287 ◽  
pp. 1764-1769
Author(s):  
Kuo Lan Su ◽  
Sheng Wen Shiau ◽  
Yi Lin Liao ◽  
J.H. Guo
Keyword(s):  
Bayesian Estimation ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Estimation Algorithm ◽  
Gas Detection ◽  
Combination Method ◽  
Intelligent Building ◽  
Gas Leakage ◽  
Nature Gas ◽  
Smoke Sensor

The paper develops gas detection modules for the intelligent building. The modules use many gas sensors to detect environment of the home and building. The gas sensors of the detection modules are classified two types. One is competitiveness gas detection module, and uses the same sensors to detect gas leakage. The other is complementation gas detection module, and uses variety sensors to classify multiple gases. The paper uses Bayesian estimation algorithm to be applied in competitiveness gas detection module and complementation gas detection module, and implement the proposed algorithm to be nice for variety gas sensor combination method. In the competitiveness gas detection module, we use two gas sensors to improve the proposed algorithm to be right. In the complementation gas detection module, we use a NH3 sensor, an air pollution sensor, an alcohol sensor, a HS sensor, a smoke sensor, a CO sensor, a LPG sensor and a nature gas sensor, and can classify variety gases using Bayesian estimation algorithm. The controller of the two gas detection modules is HOLTEK microchip. The modules can communicate with the supervised computer via wire series interface or wireless RF interface, and cautions the user by the voice module. Finally, we present some experimental results to measure know and unknown gas using the two gas detection modules on the security system of the intelligent building.

A NOVEL ROUTE FOR THE FORMATION OF GAS SENSORS

2021 ◽  
Vol 1 (6) ◽  
pp. 96-108
Author(s):  
Areeba Khayal
Keyword(s):  
Conducting Polymers ◽  
Gas Sensor ◽  
Conducting Polymer ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Synergistic Effects ◽  
Rapid Development ◽  
Gas Detection ◽  
Sensing Applications ◽  
Inorganic Nanocomposites

The rapid development of conductive polymers shows great potential in temperature chemical gas detection as their electrical conductivity is often changed upon spotlight to oxidative or reductive gas molecules at room temperature. However, the relatively low conductivity and high affinity toward volatile organic compounds and water molecules always exhibit low sensitivity, poor stability and gas selectivity, which hinder their practical gas sensor applications. In addition, inorganic sensitive materials show totally different advantages in gas sensors like high sensitivity, fast response to low concentration analytes, high area and versatile surface chemistry, which could harmonize the conducting polymers in terms of the sensing individuality. It seems to be a good option to combine inorganic sensitive materials with polymers for gas detection for the synergistic effects which has attracted extensive interests in gas sensing applications. In this appraisal the recapitulation of recent development in polymer inorganic nanocomposites-based gas sensors. The roles of inorganic nanomaterials in improving the gas sensing performances of conducting polymers are introduced and therefore the progress of conducting polymer inorganic nanocomposites including metal oxides, metal, carbon (carbon nanotube, graphene) and ternary composites are obtainable. Finally, conclusion and perspective within the field of gas sensors incorporating conducting polymer inorganic nanocomposites are summarized. Keywords: Gas sensor, conducting polymer, polymer-inorganic nanocomposites; conducting organic polymers nanostructure, synergistic effect, polypyrrole (PPY), polyaniline (PANI).

scholarly journals Hazardous Gas Detection using Gas Sensors Arrays and Fuzzy-Based Classification

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1883-1888
Keyword(s):  
Gas Sensor ◽  
Electronic Nose ◽  
Gas Sensors ◽  
Sensor Arrays ◽  
Gas Detection ◽  
Hazardous Gases ◽  
The Impact ◽  
Co Gas ◽  
Hazardous Gas ◽  
Gas Sensor Arrays

This paper presents hazardous gas detection using gas sensors arrays and fuzzy-based classification. This research is an automation of hazardous gas detection using electronic nose. Gases surround us could either hazard or benefit our health. Gas detection is an important issue, as humans should not breathe in hazardous gases in order to maintain their health. Hence, there must be an indicator to show the hazardous level of certain gases so that people can avoid and minimize the impact on their health. In this paper, hazardous gas detection is implemented by using gas sensor arrays and fuzzy-based classification. A classification for the electronic nose (e-nose) is developed in order to classify gases and determine the level of hazard of gases. The results found that e-nose system is able to differentiate hazardous level of chosen gases which are LP gas and CO gas.

scholarly journals Solid-state titania-based gas sensor for liquefied petroleum gas detection at room temperature

2011 ◽  
Vol 34 (7) ◽  
pp. 1639-1644 ◽  
Author(s):  
B. C. Yadav ◽  
Anuradha Yadav ◽  
Tripti Shukla ◽  
Satyendra Singh
Keyword(s):  
Solid State ◽  
Gas Sensor ◽  
Room Temperature ◽  
Gas Detection ◽  
Liquefied Petroleum Gas
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