期刊文献+
共找到374篇文章
< 1 2 19 >
每页显示 20 50 100
Remarkably Enhanced Methane Sensing Performance at Room Temperature via Constructing a Self-Assembled Mulberry-Like ZnO/SnO_(2) Hierarchical Structure
1
作者 Xun Li Tian Tan +5 位作者 Wei Ji Wanling Zhou Yuwen Bao Xiaohong Xia Zhangfan Zeng Yun Gao 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2024年第3期337-344,共8页
Development of metal oxide semiconductors-based methane sensors with good response and low power consumption is one of the major challenges to realize the real-time monitoring of methane leakage.In this work,a self-as... Development of metal oxide semiconductors-based methane sensors with good response and low power consumption is one of the major challenges to realize the real-time monitoring of methane leakage.In this work,a self-assembled mulberry-like ZnO/SnO_(2)hierarchical structure is constructed by a two-step hydrothermal method.The resultant sensor works at room temperature with excellent response of~56.1%to 2000 ppm CH_(4)at 55%relative humidity.It is found that the strain induced at the ZnO/SnO_(2)interface greatly enhances the piezoelectric polarization on the ZnO surface and that the band bending results in the accumulation of chemically adsorbed O_(2)^(-)ions close to the interface,leading to significant improvement in the sensing performance of the methane gas sensor at room temperature. 展开更多
关键词 HETEROJUNCTION methane sensor oxygen vacancy piezoelectric polarization ZnO/SnO_(2)hierarchical structure
下载PDF
Numerical Simulation of Methane Distribution and Sensor Placement in 2-Dimension Roadway 被引量:5
2
作者 SUN Ji-ping TANG Liang CHEN Wei WANG Fu-zeng 《Journal of China University of Mining and Technology》 EI 2007年第3期372-375,共4页
In order to provide a theoretical basis for methane sensor placement in the vertical direction of a tunnel,the software Fluent was used to simulate methane distribution. A geometric roadway model was established and d... In order to provide a theoretical basis for methane sensor placement in the vertical direction of a tunnel,the software Fluent was used to simulate methane distribution. A geometric roadway model was established and divided by grids. Methane distribution in both level and vertical sections was simulated using a realizable k-ε model with the Fluent software according to a conservation equation in a turbulent state,a turbulent kinetic energy equation and a turbulent dissipation rate equation. The realizable k-ε model and the Fluent software were used to simulate methane distribution according to the principle of the conservation equation in a state of turbulent flow. The results show that after overflow-ing,a methane level with a certain thickness is formed. Methane density curves at three specific levels were internally consistent and methane density at higher levels is denser than that at lower levels. Methane distribution becomes thinner in the direction of wind and methane in the vertical direction becomes uniform if wind speed is high. The distance be-tween sensors and roof should be less than 300 mm which is in agreement with mine safety regulations. 展开更多
关键词 numerical simulation methane sensor placement methane distribution realizable k-ε model
下载PDF
NOVEL SPECTRUM ABSORPTION OPTICAL FIBER METHANE SENSOR 被引量:1
3
作者 WangShutao CheRensheng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2005年第2期312-313,共2页
Based on spectrum principle and analyzing the infrared absorption spectrum ofmethane, a kind of optical fiber methane gas sensor and its system are developed. DFBLD(Distributedfeedback laser diode) in 1 300 nm waveban... Based on spectrum principle and analyzing the infrared absorption spectrum ofmethane, a kind of optical fiber methane gas sensor and its system are developed. DFBLD(Distributedfeedback laser diode) in 1 300 nm waveband is used as illuminant and phase-detecting technology isused to carry out harmonic wave detecting the concentration of methane. The sensitivity can arriveat 10^(-5). Experiments results show that the performance targets of the sensor such as sensitivitycan basically satisfy the requests of methane detection. 展开更多
关键词 methane Gas detecting Optical fiber sensor Harmonic wave detecting
下载PDF
Research on fault mode and diagnosis of methane sensor 被引量:1
4
作者 WANG Qi-jun CHENG Jiu-long 《Journal of China University of Mining and Technology》 EI 2008年第3期386-388,共3页
To improve the reliability of coal mine safety monitoring systems we have analyzed the characteristics of a methane sensor, an important component of the monitoring system of production safety in a coal mine and studi... To improve the reliability of coal mine safety monitoring systems we have analyzed the characteristics of a methane sensor, an important component of the monitoring system of production safety in a coal mine and studied the main type and mode of faults when the sensor was used on-line. We introduced a new method based on artificial neural network to detect faults of methane sensors. In addition, using the output information of a single methane sensor, we established a sensor output model of a dynamic non-linear neural network for on-line fault detection. Finally, the fault of the heating wire of the sensor was simulated, indicating that, when the methane sensor had a fault, the predicted output of the neural network clearly deviated from the actual output, exceeding the pre-set threshold and showing that a fault had occurred in the methane sensor. The result shows that the model has good convergence and stability, and is quite capable of meeting the requirements for on-line fault detection of methane sensors. 展开更多
关键词 methane sensor fault characteristics fault diagnosis neural network
下载PDF
The performance of nano multicomponent cocatalyst in the improvement of catalytic sensor of methane 被引量:1
5
作者 WANG Ying TONG Min-ming LIU Yong-chun 《Journal of Coal Science & Engineering(China)》 2010年第3期323-327,共5页
Based on the deficiency of catalytic elements in methane sensors such as sintering,activity decrease and surface area reduction at high temperature, three differentnano vectors Ce-Zr-Al_2O_3, Ce-Al_2O_3, and Zr-Al_2O_... Based on the deficiency of catalytic elements in methane sensors such as sintering,activity decrease and surface area reduction at high temperature, three differentnano vectors Ce-Zr-Al_2O_3, Ce-Al_2O_3, and Zr-Al_2O_3 were prepared via sol-gel technique inthe experiment.BET surface area, catalytic activity and thermal stability were tested andcompared.It is found from the experiment that the Ce-doped Al_2O_3 vector possesseshigher catalytic activity than pure Al_2O_3 vector.Zr-doped Al_2O_3 vector can enhance thethermal stability of methane sensors.Ce-Zr-Al solid solution can be obtained by the presenceof Ce and Zr doped with Al_2O_3.The reaction activity and thermal stability of catalyticsensors were improved because of the unique synergy effect from Ce-Zr-O.Among themixed cocatalysts, Ce-Zr-O was reported to be an excellent cocatalyst material.The performanceof methane sensors can be improved significantly via the modification ofCe-Zr-Al_2O_3 vector. 展开更多
关键词 Ce-Zr multicomponent cocatalyst methane sensor catalytic elements
下载PDF
Evaluation of fiber optic methane sensor using a smoke chamber
6
作者 Mingming Li Thomas Dubaniewicz +1 位作者 Heather Dougherty Jim Addis 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2018年第6期969-974,共6页
This report presents the results of experiments to evaluate a prototype fiber optic methane monitor exposed to smoke using a smoke chamber to simulate atmospheric conditions in an underground coal mine after a fire or... This report presents the results of experiments to evaluate a prototype fiber optic methane monitor exposed to smoke using a smoke chamber to simulate atmospheric conditions in an underground coal mine after a fire or explosion. The experiments were conducted using test fires of different combustible sources commonly found in mines —douglas-fir wood, SBR belt, and Pittsburgh seam coal. The experiments were designed to assess the response of the fiber optic methane sensor to different contaminants,different contaminant levels and different contaminant durations produced from the test fires. Since the prototype methane monitor detects methane by measuring absorption at a specific wavelength, optical power at the absorption wavelength(1650 nm) was measured as a function of smoke concentration and duration. The other sensor response parameter-methane response times-were measured between smoke tests to assess the impact of soot accumulation on the sensor. Results indicate that the sensor screen effectively prevented smoke from obscuring the optical beam within the sensor head, with minimal impact on the system optical power budget. Methane response times increased with smoke exposure duration, attributed to soot loading on the protective screen. 展开更多
关键词 FIBER OPTIC methane sensor Fires Optical power RESPONSE time
下载PDF
Methane sensor based on palladium/MWNT nanocomposites
7
作者 Zhong Ping Li Yong Guo +2 位作者 Suo Zhu Wu Shao Min Shuang Chuan Dong 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第5期608-610,共3页
Methane gas sensor was fabricated based on electrocatalytic properties of the Pd/MWNT nanocomposites on indium tin oxide (ITO) glass substrates. A linear response for methane was obtained in the range of 0-16% (v/v... Methane gas sensor was fabricated based on electrocatalytic properties of the Pd/MWNT nanocomposites on indium tin oxide (ITO) glass substrates. A linear response for methane was obtained in the range of 0-16% (v/v) with a detection limit of 0.167% (v/ v) and R.S.D. of 4.1%. After 100 times sensing or stable stored more than 12 months in atmosphere, unconspicuous measurable decrease was observed. The response time was less than 60 s at room temperature and ambient pressure. Some common potential interferents in samples such as N2, CO, CO2, ethane, propane, pentane, methanol, ethanol, H2 and NH3 were investigated and all the effects were less than 5% on the response for 3.0% (v/v) methane. The sensor was applied to methane determinations in man-made gas samples, the results are satisfied. 展开更多
关键词 methane Gas sensor PaUadium/MWNTs ELECTROCATALYSIS
下载PDF
Novel Optical Fiber Gas Sensor for On-line Measurement of Methane
8
作者 WANGShu-tao CHERen-sheng +1 位作者 LIUJin WANGYu-tian 《Semiconductor Photonics and Technology》 CAS 2004年第2期141-144,共4页
Based on analysis of near infrared spectral absorption of methane,absorption type optical fiber methane gas sensor with high sensitivity using DFB LD as a source is demonstrated. Light source modulation harmonic measu... Based on analysis of near infrared spectral absorption of methane,absorption type optical fiber methane gas sensor with high sensitivity using DFB LD as a source is demonstrated. Light source modulation harmonic measurement is presented in this paper. In order to eliminate the noise, the ratio of the fundamental and second-harmonic signals is used. The mathematical model of gas concentration harmonic measurement is built up.The detection result of methane concentration is also shown. Experiments have proved a sensitivity of 28×10-6. 展开更多
关键词 Gas sensor methane MODULATION Harmonic measurement
下载PDF
Methane seepages in the northern South China Sea: evidence from in situ measurements 被引量:1
9
作者 QIU Zhongyan HAN Xiqiu WANG Yejian 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2018年第5期1556-1561,共6页
Continental margins in world oceans contain large amounts of marine gas hydrates. Changes in the temperature and pressure of sediment may destabilize the methane hydrate, leading to its release and seepage into the se... Continental margins in world oceans contain large amounts of marine gas hydrates. Changes in the temperature and pressure of sediment may destabilize the methane hydrate, leading to its release and seepage into the sea. This process would increase the dissolved methane in the ambient seawater. In this study, a methane sensor was used to detect methane anomalies in the water column in southwestern Dongsha and Shenhu, northern slope of the South China Sea. Methane plumes were detected at stations SCS001 and T001 in the southwestern Dongsha area, and station SCS002 in the Shenhu area, respectively. The maximum methane concentrations were 8.8 nmol/L in southwestern Dongsha and 10.1 nmol/L in Shenhu, which are about 4–5 times higher than the background methane concentration. This indicates that there are active methane seepages present in both the southwestern Dongsha and Shenhu areas, which are likely related to a methane hydrate reservoir beneath the seafloor. A methane sensor with a low detection limit is a practical instrument with which to detect methane plumes in oceanic environments and to monitor methane leakage from the seafloor. 展开更多
关键词 northern slope of the South China Sea methane leakage in situ measurement methane sensor
下载PDF
Design of a Methane Monitoring System for Landfill and Duct Emissions 被引量:1
10
作者 Federico Hahn Gaudencio Grande 《Natural Resources》 2020年第11期520-529,共10页
<span style="font-family:;" "=""><span style="font-family:Verdana;">Methane is released from waste disposal areas as a result from anaerobic decay of food. Methane causes... <span style="font-family:;" "=""><span style="font-family:Verdana;">Methane is released from waste disposal areas as a result from anaerobic decay of food. Methane causes more greenhouse effects than carbon dioxide so a methane monitoring system is required to warn its release from gas emitting environments. The low explosive limit of methane is 5% in ambient air, so gas leakage is dangerous and can produce explosions. An entire head monitoring system was built around a MQ-4 methane gas sensor as it is cheap and reliable. The design proves to be flexible enough as it can measure CH</span><sub><span style="font-family:Verdana;">4</span></sub><span style="font-family:Verdana;"> emissions in ducts, CH</span><sub><span style="font-family:Verdana;">4</span></sub><span style="font-family:Verdana;"> in landfills at different depths and even in cattle barns. The measuring system head consists of a suction pump, solenoids, and a methane sensor. Measurements are taken 13 seconds after methane gas sucking. </span><span style="font-family:Verdana;">A timing of 100 seconds is required for purging the chamber before the</span><span style="font-family:Verdana;"> second solenoid is turned-on. Devices temperature during operation was sampled with a thermal Flir-One camera and solenoid coil temperature was of 24.9</span></span><span style="font-family:;" "=""><span style="font-family:Verdana;"><span style="white-space:nowrap;">&#730;</span>C </span><span style="font-family:Verdana;">after a continuous operation of 30 seconds. As hoses for emission sampling</span><span style="font-family:Verdana;"> become larger time for sampling increases as well as energy consumption.</span></span> 展开更多
关键词 methane Detection MQ-4 sensor Monitoring Head Current Consumption
下载PDF
Development and Application of Methane Leakage Monitoring System for Gas Transmission Pipeline
11
作者 Qijun Wang Shiqi Wei 《Journal of Electronic Research and Application》 2021年第6期44-49,共6页
Oil and gas pipeline transportation,as a relatively safe way of oil and gas transportation,undertakes most of the transportation tasks of crude oil and natural gas.Oil and gas pipeline accidents affect a wide range of... Oil and gas pipeline transportation,as a relatively safe way of oil and gas transportation,undertakes most of the transportation tasks of crude oil and natural gas.Oil and gas pipeline accidents affect a wide range of consequences.Therefore,the oil and gas pipeline leakage detection is paid more and more attention.In this paper,ultra-low power methane gas sensor is selected to collect methane gas concentration in the air,and wireless network technology is used to build a wireless network sensor system with 4G function.Through the sensor distribution along the pipeline,it can intuitively and accurately judge whether there is a micro-leakage in the pipeline,and understand the diffusion situation after the leakage.The sensor system has high reliability and stability,and has high value of popularization and application. 展开更多
关键词 Oil and gas pipeline Leak detection Ultra-low power consumption methane gas sensor
下载PDF
深海原位溶解甲烷传感器(METS)的原理及应用研究 被引量:6
12
作者 申正伟 孙春岩 +1 位作者 贺会策 赵靖文 《海洋技术学报》 2015年第5期19-25,共7页
近年来,海水中溶解甲烷的探测技术成为国内外学者的研究热点。与传统的实验室利用气相色谱法检测离散海水甲烷浓度的方法相比,基于膜脱气技术的METS甲烷传感器具有体积小、操作简便、原位实时连续观测等特点,并且可与其他化学、物理传... 近年来,海水中溶解甲烷的探测技术成为国内外学者的研究热点。与传统的实验室利用气相色谱法检测离散海水甲烷浓度的方法相比,基于膜脱气技术的METS甲烷传感器具有体积小、操作简便、原位实时连续观测等特点,并且可与其他化学、物理传感器集为一体进行甲烷探测。主要介绍了METS传感器的基本原理、特点,给出了技术指标和规格参数,分析了其性能制约因素与校正方法,并总结了METS传感器在性能测试、麻坑成因、潮汐作用机理等方面的应用成果。 展开更多
关键词 mets传感器 原位探测 溶解甲烷 原理 应用
下载PDF
基于无人机平台的甲烷监测技术及其在油气行业的应用 被引量:1
13
作者 达虹鞠 许德刚 +4 位作者 王晨 刘通浩 唐智和 李巨峰 范海浩 《中国环境监测》 CAS CSCD 北大核心 2024年第1期1-11,共11页
对甲烷排放的精准监测是油气行业实现温室气体减排与管控的基础和前提。无人机具有灵活、可操作性强、覆盖范围广、运行成本低等特点,以无人机为飞行平台的甲烷监测技术在油气行业区域甲烷排放监测领域具有巨大的应用潜力。详细阐述了... 对甲烷排放的精准监测是油气行业实现温室气体减排与管控的基础和前提。无人机具有灵活、可操作性强、覆盖范围广、运行成本低等特点,以无人机为飞行平台的甲烷监测技术在油气行业区域甲烷排放监测领域具有巨大的应用潜力。详细阐述了基于无人机平台的甲烷监测技术的优势,梳理了不同的无人机类型,并根据其飞行性能及载荷能力进行了比对,归纳了无人机有效载荷类型、特点及应用场景,总结了国内外无人机甲烷监测技术在油气行业的应用,旨在为基于无人机平台的甲烷监测技术在我国油气行业的应用提供理论和技术参考。 展开更多
关键词 无人机 甲烷监测技术 机载甲烷传感器 油气行业
下载PDF
涂覆SnO_(2)-WO_(3)的微光纤甲烷气体传感器
14
作者 陈苗 傅海威 +3 位作者 肖家悦 李根 程嘉慧 丁继军 《光电技术应用》 2024年第2期37-43,共7页
提出并展示了一种用于甲烷浓度检测的SnO_(2)-WO_(3)纳米花涂覆微光纤双锥干涉仪(MFI)。采用多芯光纤熔融双锥法制备锥形MFI。采用水热法和浸渍法合成了甲烷敏感材料SnO_(2)-WO_(3)。采用滴涂法在MFI结构外部涂覆SnO_(2)-WO_(3)材料。... 提出并展示了一种用于甲烷浓度检测的SnO_(2)-WO_(3)纳米花涂覆微光纤双锥干涉仪(MFI)。采用多芯光纤熔融双锥法制备锥形MFI。采用水热法和浸渍法合成了甲烷敏感材料SnO_(2)-WO_(3)。采用滴涂法在MFI结构外部涂覆SnO_(2)-WO_(3)材料。当甲烷分子吸附在涂层材料上时,材料的折射率会发生变化,从而引起传感器的透射光谱发生变化。因此,可以通过测量光谱的波长漂移来检测甲烷浓度。实验结果表明,SnO_(2)-WO_(3)纳米花包覆MFI传感器具有较大的浓度检测范围和较高的室温稳定性。测量甲烷浓度范围为0~34%,灵敏度约为0.11nm/%。还对传感器的选择性进行了研究。对异丙醇、甲醇、乙醇和甲烷的反应进行了研究和比较。结果表明,该传感器对甲烷具有较高的吸附选择性,在矿井瓦斯检测与预警领域具有潜在的应用前景。 展开更多
关键词 甲烷气体传感 SnO_(2)-WO_(3)纳米材料 微光纤 干涉
下载PDF
基于遥感的奶牛养殖场甲烷检测系统研发
15
作者 李弘振 赵凯旋 赫永康 《华南农业大学学报》 CAS CSCD 北大核心 2024年第5期772-781,共10页
【目的】为了解决奶牛养殖场甲烷检测过程中,定点式气体传感器检测点位有限、检测不全面等问题,本研究运用无人机遥感技术开发了一套甲烷遥感检测系统,旨在实现对奶牛养殖场甲烷分布快速、大范围的检测。【方法】首先,基于光谱吸收原理... 【目的】为了解决奶牛养殖场甲烷检测过程中,定点式气体传感器检测点位有限、检测不全面等问题,本研究运用无人机遥感技术开发了一套甲烷遥感检测系统,旨在实现对奶牛养殖场甲烷分布快速、大范围的检测。【方法】首先,基于光谱吸收原理设计了甲烷遥感检测传感器,并通过试验验证了其检测精度。然后,在河南省洛阳市孟津县生生牧场进行了实地测试,绘制出了奶牛养殖场内的甲烷浓度分布图。并对奶牛活动区域的甲烷浓度值与该区域内奶牛数量之间的相关性进行了分析。【结果】根据试验结果分析,所设计的甲烷遥感检测模块的平均单位误差小于2.05 mg/m^(3)。某区域的甲烷质量浓度值与该区域内活动的奶牛数量之间存在显著的正相关性,两者的皮尔逊相关系数为0.934。【结论】所设计的甲烷遥感检测系统在实际应用中具有较高的准确性,可以满足奶牛养殖场对甲烷分布的检测需求。 展开更多
关键词 甲烷检测 无人机遥感 奶牛养殖场 甲烷排放 气体传感器
下载PDF
反射式红外甲烷传感器气室结构优化设计与仿真分析
16
作者 邓霄冉 曹瑜 +1 位作者 崔庆权 吴彦霖 《有色金属设计》 2024年第2期87-93,共7页
甲烷易引发火灾和爆炸,可通过红外吸收式甲烷传感器进行实时检测。此类传感器的传感部分包括红外光源、热释电探测器、红外气室等部件。其中,红外气室的尺寸结构与元器件摆放位置直接影响传感器的检测精度。文章针对反射式红外气室模型... 甲烷易引发火灾和爆炸,可通过红外吸收式甲烷传感器进行实时检测。此类传感器的传感部分包括红外光源、热释电探测器、红外气室等部件。其中,红外气室的尺寸结构与元器件摆放位置直接影响传感器的检测精度。文章针对反射式红外气室模型,对相关元器件选型后进行建模与仿真,得到热释电探测器总接收光线率为54.3%,其中接收窗口接收光线率36%的优化结构模型。 展开更多
关键词 红外甲烷传感器 红外气室 建模仿真 结构优化
下载PDF
基于光子自旋霍尔效应的甲烷检测理论研究
17
作者 侯自如 王哲飞 武永 《激光技术》 CAS CSCD 北大核心 2024年第3期345-351,共7页
为了实现对甲烷体积分数的高精度检测,采用多层结构激发了具有高品质因素的光子自旋霍尔效应现象。利用非对称的排列方式,将甲烷敏感膜引入结构中,通过敏感膜的折射率变化,实现对甲烷体积分数的检测;研究了气体孔隙率、周期数、金属厚... 为了实现对甲烷体积分数的高精度检测,采用多层结构激发了具有高品质因素的光子自旋霍尔效应现象。利用非对称的排列方式,将甲烷敏感膜引入结构中,通过敏感膜的折射率变化,实现对甲烷体积分数的检测;研究了气体孔隙率、周期数、金属厚度和敏感膜厚度对光子自旋霍尔效应的影响,并采用传输矩阵法进行了数值分析。结果表明,该传感器可对体积分数为0~3%、折射率变化为1.4364~1.4478的甲烷气体进行检测,灵敏度为29.6°,最高质量因素和最低检测下限分别为395和0.00012。该传感器结构简单、检测能力强,为光学传感器的研究提供了新思路。 展开更多
关键词 传感器技术 甲烷体积分数 甲烷敏感膜 非互易 光子自旋霍尔效应
下载PDF
煤矿甲烷传感器应用现状与发展前景思考
18
作者 赵小辉 陈向军 《煤》 2024年第5期5-9,共5页
瓦斯是煤炭采掘过程中从煤岩体内涌出气体的总称,其主要成分为甲烷,可以严重威胁煤矿生产。甲烷传感器是煤矿瓦斯监控系统核心监测设备之一,对预防瓦斯灾害起到重要作用。为提高煤矿瓦斯监测能力,实现矿井智慧化管理,在系统梳理甲烷传... 瓦斯是煤炭采掘过程中从煤岩体内涌出气体的总称,其主要成分为甲烷,可以严重威胁煤矿生产。甲烷传感器是煤矿瓦斯监控系统核心监测设备之一,对预防瓦斯灾害起到重要作用。为提高煤矿瓦斯监测能力,实现矿井智慧化管理,在系统梳理甲烷传感器发展历程基础上,文章阐述了目前广泛使用的7类甲烷传感器工作原理、适用场景及其特点;分析了现有甲烷传感器的不足,结合煤矿自动化,智能化安全开采需求及井下环境特征,提出了未来甲烷传感器的研发方向,以期为现代化矿井安全生产提供装备保障。 展开更多
关键词 甲烷传感器 智能监测 瓦斯灾害防治 煤矿安全
下载PDF
基于数据态势分析的矿井甲烷浓度检测技术研究 被引量:1
19
作者 薛艳龙 梁光清 《仪表技术》 2024年第4期71-73,共3页
甲烷是影响煤矿安全的主要隐患之一,甲烷传感器是检测矿井甲烷浓度的主要设备,广泛应用于高瓦斯矿井中。随着矿井巷道环境的日益复杂,甲烷传感器检测数据的可靠性面临严峻挑战。针对煤矿用甲烷浓度传感器的可靠性检测技术,提出了一种基... 甲烷是影响煤矿安全的主要隐患之一,甲烷传感器是检测矿井甲烷浓度的主要设备,广泛应用于高瓦斯矿井中。随着矿井巷道环境的日益复杂,甲烷传感器检测数据的可靠性面临严峻挑战。针对煤矿用甲烷浓度传感器的可靠性检测技术,提出了一种基于数据态势分析的矿井甲烷浓度检测方法,制定了一套甲烷浓度传感器的设计方案,旨在提高传感器的准确性和可靠性,提升传感器的智能化应用水平,为煤矿安全提供更有力的技术保障。 展开更多
关键词 甲烷传感器 数据态势分析 抗干扰技术 干扰识别 智能化
原文传递
矿用激光甲烷传感器的校准方法及其测量不确定度评定和应用
20
作者 王素玲 《科技资讯》 2024年第7期111-113,共3页
主要分析矿用激光甲烷传感器校准方法及测量不确定度的应用,重点介绍传感器的结构原理、校准前准备工作、传感器的校准项目、不确定度评定方法及符合性评定应用等,为激光甲烷传感器的校准与符合性评定提供技术依据,为保障煤矿安全生产... 主要分析矿用激光甲烷传感器校准方法及测量不确定度的应用,重点介绍传感器的结构原理、校准前准备工作、传感器的校准项目、不确定度评定方法及符合性评定应用等,为激光甲烷传感器的校准与符合性评定提供技术依据,为保障煤矿安全生产提供技术保障。 展开更多
关键词 激光 甲烷传感器 结构原理 校准方法 不确定度
下载PDF
上一页 1 2 19 下一页 到第
使用帮助 返回顶部