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141 articles for “Gas Sensors”
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TiO₂ Nanostructured Material-based Gas Sensor for Detecting Oxygen and LPG Gases
Abstract: This Paper investigates the use of TiO2 nanowires and nanotetrapods on glass and silicon substrates for sensing combustible gases such as LPG (Liquid Petroleum Gas) and Oxygen. The growth of Titanium dioxide (TiO2) nanowires/nanorods/nanotetrapods was investigated using both physical and chemical methods. In thermal evaporation method, both with and without vacuum conditions, was employed to synthesize various TiO2 nanostructures. A vacuum coating machine was utilized to create uniform TiO2 thin …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 443–451 Read article
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Oxide Nanostructures as Gas Sensor
Abstract: This article is to describe oxide nanostructures as gas sensor, to act as a summited provision. Method based scripture has described from views of on chemical used to detect, otherwise, fact has been interpretation of active layer to convert chemical reaction to electronic signal that has read in terms of changes in resistance, frequency, voltage, etc. Basic Concepts of sensory process from device has been performance evaluation, given by, parametric …
Published in Recent Trends in Sensor Research & Technology · Vol. 8, Issue 3, 2021 · pp. 27–32 Read article
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Analysis of MEMS based Micro-hot Plate for Gas Sensor
Abstract: AbstractThe Micro-hot plate is the one of the key component of the gas sensor, which is used to achieve and control the high temperature to detect the various changes occurs at the sensing layer of the sensor. In this paper, three different types of geometry of micro hot plate such as single meander, double meander and modified spiral based Micro-hot plate using two different types of materials- platinum and titanium …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 1–5 Read article
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Design of MEMS Based Microheater for Enhanced Efficiency of Gas Sensors
Abstract: MEMS based microheaters play an important role in gas sensors. In gas sensors adsorption property of gas sensitive material at elevated temperature is used. For this purpose the microheater should provide uniform heating throughout the sensing surface. This paper describes the structural design and electrothermal analysis of microheater. In this paper, the optimization of the heater geometries is done to obtain better temperature uniformity. Two heater geometries wiz, S-shape and …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 16–21 Read article
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A Review on Nanotechnology Application for CO/CO2 Gas Sensor Fabrication
Abstract: AbstractNano-technology finds application in developing nano sensors. There are various tools and techniques available in nanotechnology to develop nanostructures like nano wires and nano tubes. This paper reviews various gas sensors and nano techniques for CO/CO2 sensor fabrication.Keywords: Nano technology, CO/CO2 sensor, deposition methodsCite this ArticleNikhila Patil, Dipali Patil. A Review on Nanotechnology Application for CO/CO2 Gas Sensor Fabrication. Journal of Instrumentation Technology & Innovations. 2017; 7(3): 1–4p.
Published in Journal of Instrumentation Technology & Innovations · Vol. 7, Issue 3, 2017 · pp. 1–4 Read article
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Synthesis and Characterization of Sustainable, Low-Cost, Biomass-Derived Carbon Films from Hevea Brasiliensis (Rubber) Wood for Environmentally Friendly Gas Sensors with Enhanced Selectivity and Sensitivity to Polar Vapors and Hazardous Gases
Abstract: Hevea brasiliensis (rubber) wood sawdust was utilized to fabricate carbon gas sensors for detecting 1000 ppm of ethanol, methanol, acetone, carbon dioxide, and ammonia gases. The carbon particles were prepared by phosphoric acid impregnation followed by thermal activation and then fabricated into films on conductive and non-conductive substrates using the doctor blade method. X-ray diffraction (XRD) analysis revealed distinct graphitic features with peaks at the (002) and (100) planes, indicating …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 1, 2025 · pp. 22–36 Read article
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Development and Synthesis of Graphene Based Gas Sensor
Abstract: AbstractGraphene has become a promising material for many different applications, such as nano electronic devices, physical, chemical and biochemical sensors, transparent conductive films, clean energy scavenging and storage devices and nano composite formulation. Recently gas sensing as a critical application intelligent system, is receiving increasing attention in both industry and academia. Sensing application using graphene sheets as transducer have experienced surge of activities in recent years, especially for gas sensing …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 13–19 Read article
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Gas Sensors Fabricated using Carbon Powder Derived from Dried Banana Peels Waste to detect Methanol, Ethanol, Acetone Vapors and Carbon Dioxide Gas
Abstract: Low cost and environmentally friendly activated carbon powder was synthesized using waste banana peels. Phosphoric acid was utilized as activation agent. Doctor blade method was employed to fabricate films of activated carbon on conductive or nonconductive glass substrates. Films were subsequently annealed at 70 0C for 30 minutes in air. According to XRD patterns, single phase of activated carbon was crystallized in thin film form. Carbon prepared from banana peels …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 14–25 Read article
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Classification and Pesticide Detection in Fruits
Abstract: Pesticides being present in fruits is an increasing concern for people all over the world. By working with the customer, this work aims to resolve the issue. The consumer should learn if the chosen fruits are suitable for consumption. The primary goal of this research is to use a sensor to calculate the normalized differential vegetation index in order to detect the levels of pesticides in fruit. The work is …
Published in Current Trends in Signal Processing · Vol. 13, Issue 1, 2023 · pp. 1–5 Read article
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Micro-cantilever Sensors for Efficient Gas Sensing
Abstract: AbstractMicro-cantilever has been progressively used for the development of miniaturized sensors for gas sensing, biochemical analysis, medical applications and quality and process control. Micro-cantilevers are fabricated with rectangular silicon slabs having thickness below 1 µm. For gas sensing applications, Si cantilever surface is modified with appropriate sensing materials for selective adsorption of gas/vapor or biomolecules. The bending of the cantilever due to different surface conditions is measured with laser beam …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 3, 2019 · pp. 16–24 Read article
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Enhanced Room-Temperature Gas Sensing Performance of 2% Mn-Doped Sri Lankan Natural Graphite Thin-Film Sensors for Ammonia, Acetone, and Ethanol vapors Detection
Abstract: The development of room-temperature gas sensors with high sensitivity, fast response, and low-cost remains a critical challenge for environmental monitoring and safety applications. In this work, we report the fabrication and characterization of a 2% Mn-doped Sri Lankan natural graphite thin-film sensor for the detection of ammonia (NH3), ethanol (C2H5OH), and acetone (C3H6O) vapors under ambient conditions. The sensor was prepared using the doctor-blade coating method on Indium Tin Oxide …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 2, 2026 · pp. 39–49 Read article
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Automatic Gas Leakage Detection System
Abstract: This project report presents the design and implementation of a focused automatic gas leakage detection and ventilation system centered on the Arduino Nano microcontroller and the MQ-2 gas sensor. The primary function of the system is to detect flammable gases like LPG, propane, and methane using the MQ-2 gas sensor. This sensor continuously monitors the surrounding air for the presence of these gases. When the gas concentration crosses a predefined …
Published in Journal of VLSI Design Tools and Technology · Vol. 15, Issue 3, 2025 · pp. 29–35 Read article
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Arduino based LPG Gas Leakage smart Detection system
Abstract: Leaking LPG can result in significant mishaps even though it a common fuel for both residential and commercial activity. In this study, a microcontroller with a MQ2 gas sensor, buzzer, and GSM module is used to detect LPG leaks. Upon early detection of leakage, the wireless system can initiate automatic safety actions and send SMS warnings and sound alarms. The design and implementation of a microcontroller-based LPG leak detection and …
Published in Journal of Microcontroller Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 1–10 Read article
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A Review of Smart Sensor-based Approaches for LPG Gas Leak Detection and Prevention
Abstract: In recent years, home fires have claimed a growing number of lives and pieces of property. Since it is very flammable, liquefied petroleum gas (LPG) can burn even some distance away from the spill. Poor-quality rubber tubes or instances in which the regulator is not turned off are to blame for most fire incidents. Due to the regulator's malfunction, the hob is currently receiving gas from the regulator. Gas leaks …
Published in Recent Trends in Fluid Mechanics · Vol. 10, Issue 1, 2023 · pp. 14–19 Read article
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Smart Air Quality Monitoring System using IoT
Abstract: This paper presents the design and implementation of a Smart Air Quality Monitoring System using the ESP32 Wi-Fi microcontroller integrated with an MQ-2 gas sensor and a DHT-11 temperature and humidity sensor. The system continuously monitors environmental parameters including air quality (smoke, LPG, CO, and other combustible gases), temperature, and relative humidity in real time. The acquired sensor data is transmitted wirelessly to the Blynk IoT platform, enabling users to …
Published in Recent Trends in Sensor Research & Technology · Vol. 13, Issue 2, 2026 Read article
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Air Quality Monitoring System
Abstract: With advancement of technology mankind is facing newer problems at personal, social and environmental levels. Urbanization of world culture has created serious health concerns of citizen of smart cities. Increasing level of air pollutants such as carbon monoxide, carbon dioxide, sulphur oxide, nitrous oxide has impacted on personal health of citizens of world. So the quality of air and the amount of air pollutants need to be measured in order …
Published in Journal of Web Engineering & Technology · Vol. 6, Issue 1, 2019 · pp. 6–10 Read article
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IoT-Based Smart Public Sanitation Monitoring System with Real-Time Air Quality Analysis
Abstract: Maintaining hygiene in public sanitation facilities remains a critical challenge in urban environments due to inefficient monitoring and delayed maintenance responses. This paper presents an IoT-enabled smart toilet monitoring system designed to assess and manage restroom cleanliness in real time using environmental sensing and automated decision-making. The proposed system integrates multiple gas sensors (MQ135, MQ8, MQ4) and temperature sensors with an Arduino Uno to continuously monitor air quality parameters such …
Published in Journal of Instrumentation Technology & Innovations · Vol. 16, Issue 3, 2026 Read article
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Portable and User-friendly Air Watch System Based on IoT
Abstract: The internet of things (IoT) based air monitoring system is a novel approach to monitoring air quality in real time. With the increasing concerns over pollution and its impact on human health, our IoT-based air monitoring system offers a solution to gather and analyze air quality data efficiently. The system utilizes IoT devices like Node MCU and sensors like MQ135 and DTH11 to collect data such as temperature, air quality, …
Published in Journal of Control & Instrumentation · Vol. 15, Issue 3, 2024 · pp. 19–27 Read article
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Thin Film Technology in Sensor Manufacturing – A Technical Discussion
Abstract: Thin‑film technology has become the cornerstone of modern sensor manufacturing, enabling the convergence of miniaturisation, multifunctionality, and cost‑effective mass production. This paper surveys the latest advances in deposition techniques—ranging from magnetron sputtering and chemical vapour deposition to atomic‑layer deposition (ALD) and ink‑jet‑printed sol‑gel processes—and examines how their unique material‑control capabilities translate into performance gains across the sensor spectrum (chemical, physical, and bio‑sensing). By integrating nanoscale thickness control (≤ 10 nm) …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 1, 2026 · pp. 47–57 Read article
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Carbon Footprints and Imposition of Tax
Abstract: AbstractThe IOT based project is designed to keep an account on excessive use of carbon by industries. A dynamic tax is imposed when carbon level exceeds its threshold. Tracking down the carbon footprint of every product using the blockchain would shield the data from tampering and it can be used to figure out the amount of carbon tax that is to be charged at the point of sale. If an …
Published in Recent Trends in Sensor Research & Technology · Vol. 7, Issue 1, 2020 · pp. 23–29 Read article