gas sensor Articles
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Gas Sensor Market: Latest Trends and Future Opportunities
近年来,由于对空气质量监测和环境保护的需求不断增长,气体传感器市场出现了显着增长。随着技术的进步,气体传感器变得更加灵敏、准确和可靠,从而在各个行业中得到广泛的应用。 气体传感器市场的主要趋势之一是开发紧凑和低成本的传感器。随着微机电系统(MEMS)技术的出现,生产小型、轻量化和低成本的气体传感器已成为可能,这些传感器可以很容易地集成到各种设备和系统中。这为消费电子产品、可穿戴设备和 IoT(物联网)设备中的气体传感器应用开辟了新的机会。 另一个趋势是气体传感器在环境监测中的应用。随着人们对空气质量和污染的日益关注,气体传感器已成为环境监测系统不可或缺的一部分。这些传感器可以检测各种气体,如一氧化碳、二氧化氮、挥发性有机化合物 (VOC) 和臭氧,提供有关空气质量和潜在健康风险的关键信息。 ...
By JXCT
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Role of the active layer thickness on the sensitivity of WO
3gas sensorsSensitive materials in gas sensors are often polycrystalline semiconducting oxides such as WO3, SnO2, CuO or ZnO. They are most often composed of nanometric grains. They can be deposited either as thin or thick films. The film thickness plays an important role in the response stability and sensitivity of sensors. It is now well accepted that the relationship between the surface and volume of the ...
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Transparent conductive oxide materials: financial stakes and technological challenges
Although transparent conductive oxides (TCOs) have been known and used for quite some time, research on these materials is still very active to improve their characteristics. This paper is aimed at giving an overview of the contribution of the TCO materials to the economy in various fields of applications (flat panel displays, photovoltaics, light-emitting diodes, smart windows, gas sensors, ...
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Detection of toxic gases using a composite of single-walled carbon nanotubes with polyaniline
We reported on the response behaviours of a composite sensor of SWNTs with polyaniline to detect noxious gases at room temperature. The SWNT-polyaniline composite synthesised was found to be high-quality with good uniformity. A combination of photolithography and a lift-off process was utilised to fabricate 100-nm thick Pd electrodes on drop-cast SWNT-polyaniline composite. The composite-based ...
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Gas Sensor Support: Calibration, Servicing and Repairs
Founded in 1971, Edinburgh Sensors has become one of the world’s leading manufacturers of gas detectors for cutting-edge gas sensing solutions. With a global reputation for high performance, our gas detection products are manufactured in the UK and provide an ideal solution for those applications where accuracy, safety and reliability are paramount. Our services don’t stop there. We ...
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Application of NH3 gas sensor
Background:NH3 gas sensor is an important component of air quality monitoring equipment. It is mainly used to detect the concentration of NH3 in the air and provide feedback information to environmental protection departments and enterprises. NH3 gas sensor mainly consists of a sensing element, a reference electrode, and a counter electrode. The sensing element is mainly composed of a resistance ...
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Gas Sensor-Portable & Fixed gas sensor- gas sensor module
Background: Both stationary and portable gas detectors play a vital role in protecting the safety of crews and Marine ecosystems. Reliable and robust gas detection methods are essential for effective protection of life at sea – dangerous gases are a common hazard on board ships and present unique challenges for storage and transport at sea. Knowing how your gas detector works helps ...
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Refrigerant gas leak product selector
Useful new Product Selector: Refrigerant gas sensor by refrigerant gas type and application type. We now have a new easy way to select AquiTron refrigerant gas leak detection products using our new ‘Product Selector’ filter tool. If you are unsure what refrigerant gas product you need, this filtering tool is there to help. The filters will select the refrigerant gas sensor for ...
By Aquilar Ltd
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NDIR Gas sensor working principle
Background; NDIR gas sensor is a gas sensor based on infrared spectroscopy technology. It can be used to detect a variety of gases, including oxygen, nitrogen, hydrogen, carbon monoxide, carbon dioxide, etc. The working principle, performance characteristics and application of NDIR gas sensor will be introduced in detail in the following sections. NDIR Gas sensor working principle The NDIR gas ...
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A comparative study on the NH
3gas-sensing properties of ZnO, SnO2, and WO3nanowireIn this work, a large quantity of ZnO, SnO2 and WO3 nanowires (NWs) was successfully synthesised by simple and efficient methods. Their morphology and microstructure were characterised by FE-SEM, TEM, XRD, PL, and Raman. The NH3 gas-sensing properties of these NWs were investigated and compared. It was found that the responses and response-recovery time of SnO2 and WO3 NWs sensors to NH3 gas are ...
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Characterisation of aseptic sterilisation processes using an electronic nose
The present work describes the development of a multi–sensor system for the evaluation of aseptic sterilisation processes employing hydrogen peroxide vapour by means of an electronic nose. Microbiological count reduction tests with Bacillus atrophaeus spores have been carried out in order to characterise influencing factors of the sterilisation by hydrogen peroxide vapour, namely the hydrogen ...
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SO2 gas sensor Sulfur dioxide sensor module
Product introduction: The sulfur dioxide sensor module is widely used in the production of various portable and stationary monitoring equipment as well as in various occasions and equipment requiring gas detection.Our sulfur dioxide sensor module has the advantages of high sensitivity and resolution, as well as small size and light weightThe performance parameters Model JEC – SO2-20 The normal ...
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Towards practicable sensors using one-dimensional nanostructures
Nanomaterials, including nanoparticles, nanowires, nanotubes etc., are the object of much well deserving attention by researchers and the public alike. Because of their novel properties associated with their typically large surface to volume ratios and finite- or quantum-size effects, they offer an avenue of exploration for new and interesting physics, chemistry, biology and materials science. ...
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The working principle of common mode method and common mode anti-jamming method of SO2 gas sensor
Background: SO2 gas sensor is one of the most widely used temperature and humidity sensors in the field of environmental protection and industrial process control. It is mainly used to detect the concentration of SO2 in the air and control the operation of air pollution control equipment. SO2 gas sensor is a kind of semiconductor material, which has been widely used in the field of environmental ...
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Electrochemical Sensors for Specific Gas PPM Monitoring
Echem sensors are able to read a specific gas even when it is mixed in a background of other gases. Echem sensors are typically used to read very low PPM concentrations of toxic gases. The Echem sensor consists of a small cell holding an electrolytic solution. This solution needs a specific gas in order to produce an electrical signal. When the specific gas passes through a permeable membrane ...
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CO₂ Gas Sensor Tailored to Customer Needs
We were recently delighted to help one of our customers in the field of Modified Atmosphere Packaging (MAF) who was in need of a bespoke CO2 gas sensor solution. He was seeking a gas sensor with a rapid response, low lag, and low noise output. Following consultation, we were able to develop the New 0-100% CO2 Gascard NG which reduces both the response time and quiescent noise. Standard Gascard NG ...
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Some recent trends in the fabrication, functionalisation and characterisation of metal oxide nanowire gas sensors
Due to strong interdependence of the electron transport and surface processes in quasi 1-D metal oxide nanostructures, chemiresistors and field effect transistors (FETs) based on nanowires perform excellently as sensing elements and may be able to compete with traditional thin film sensors in the field of solid state sensorics. Namely, applications requiring a stable, reproducible sensing element ...
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Ultra-fast growth of the monocrystalline zinc oxide nanorods from the aqueous solution
A new inexpensive method of the ultra-fast growth of ZnO nanorods from the aqueous solution is described. This environment friendly and fully reproducible method allows growth of nanorods in about 1–3 min time on various substrates, without any catalyst or complexing agent. The substrates need to be coated with a layer of gold droplets, which nucleate the growth. Growth temperature does not ...
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Growth and gas-sensing studies of metal oxide semiconductor nanostructures
One-dimensional (1D) nanostructures of semiconductor oxides are of interest for various applications including gas sensors. For gas sensors, nanostructures have advantages of improved gas-sensing characteristics and have potential in fabrication of miniature sensor. In this paper, we review some of the work done in our laboratory towards growth of nanostructures of SnO2, ZnO and CuO and ...
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An experimental method to estimate the temperature of individual nanowires
In this paper, the authors present an effective experimental method to estimate the temperature of individual metal oxide nanowires that can be used to quantify the heating produced in conductometric or other operating conditions. The here-proposed method is based on the analysis of the recovery time of the nanowire's resistance after exposure to a gas pulse (0.5 ppm of NO2 in dry air). It is ...
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