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关键词： 中压开关柜   状态监测   传感器技术  

摘要： 本文以高速电气化铁路设备供货项目作为研究实例,根据中国国家铁路集团有限公司对智能化牵引变电站的总体技术要求,对中压开关柜的智能化辅助设备进行技术参数与设备选型设计,引入数控测量、开断电流加权累计等技术方法完成在线监测与智能诊断系统设计,并综合运用红外温度传感器、气体压力传感器、局部放电传感器.通过对中压开关柜智能化方案的可行性研究,为同类电气设备改造项目提供参考价值.

关键词： 传感器技术   机械电子   应用  

摘要： 伴随着现代化科技信息的创新与发展,各学科开始出现互相交叉共同改变的一种态势,这种交叉学科有效地利用各学科间的相互结合,来推动者各个行业的快速发展,其中,机械电子行业在这一大趋势当中脱颖而出,具体体现在传感器技术的应用上。接下来,文章针对传感器技术在机械电子行业的应用开展论述,望能够对大家起到一定的可参考借鉴价值。

关键词： 机电一体化   传感器技术   机电自动化  

摘要： 伴随着科学技术的高速发展建设,使得在我国各行各业的发展中,传感器得到了有效的运用。在人们的日常生活中,传感器是一种有着较高综合性与技术性的智能化技术,同时也在推动了各方面的发展。由于机电一体化在具体工作的过程中,所面临的各种外部环境复杂多样,传感器能够保证其在各种情况下顺利的运行。传感器的缺乏可能会导致机电一体化在运行的过程当中出现信息不准确的情况。本文将就机电自动化控制中传感器技术的具体应用进行深入的分析和探究。

关键词： 精细农业   3S技术   物联网   传感器技术   无线传输技术  

摘要： 农业是第一产业,是国民经济的基础。随着社会的发展,农村劳动力不断流失,人力成本不断提高,农田信息获取技术也越来越受到重视。及时准确动态地获取农田信息对于促进农业经济的发展和减少人力成本具有重要意义。基于此,研究小组阐述了3S技术和物联网相关技术,总结回顾了3S技术和物联网相关技术在农业中的具体应用。研究结果表明:该技术可以降低农业生产成本,提高农业生产效率,是走向精细农业的关键技术。

关键词： 传感器技术   机电自动化   应用  

摘要： 电子传感器技术主要是指能够感受规定的检测,并按照一定的规则将之转化成传输信息的一个设备,并且作为一种技术前沿的科技,它在当前许多产业中都有着广泛地使用,其效益也使之十分可观。文章以机电智能化控制系统为例,对传感器技术应用的有关内容,进行了系统分析与介绍,其目的主要是为了提高机电智能化控制系统的实际性能,并推动有关产业取得良好的发展前景,从而取得良好的社会效益。

关键词： 传感器   跑道   监测   管理  

摘要： 分析了机场跑道管理中存在的问题,提出了基于传感器技术建立机场跑道监测平台,并结合跑道业务需求,在平台的基础上建立了机场跑道监测管理系统、机场跑道评价系统、数字孪生跑道系统和跑道作业信息管理系统,提高了跑道管理工作的效率和智能化、自动化水平。

关键词： Shiga toxin   Biosensor   Human health   Advanced nanomaterials   Biomedical analysis   bacterial  

摘要： Shiga toxin is one of the most important potential toxins produced by Escherichia coli (E. coli) and Shigella dysenteriae. Binding to the ribosome subunit and preventing protein production is the main function of the Shiga toxin. Till now, some the methods like, culture, microscopic methods, ELISA as well as molecular methods have been used for the monitoring of Shiga toxin. Also, PCR and real-time PCR are the most widely used molecular method for sensitive detection of Shiga toxin, which has high sensitivity and specificity compared to other methods. The need for advanced and expensive equipment, time-consuming, sensitivity, and low specificity are the main disadvantages of common diagnostic methods of Shiga toxin and the bacteria that produce it which limit their application. With the advancement of nanobiotechnology, new diagnostic methods are being developed, of which biosensors are one of the most imperative tools. Biosensors have largely been able to overcome the shortcomings of routine methods. In this review, routine diagnostic methods and their limitation were reviewed. Then, biosensors have been considered as a potential modern diagnostic technology. Next, novel approaches on the biosensing of Shiga toxin were investigated based on the role of advanced nanomaterials. In addition, various strategies such as immune-, geno-, cyto, and enzymatic biosensing of Shiga toxin were surveyed. Also, the role of various labels in the biosensing of Shiga toxin were investigated using various labelled and label-free methods. Also, the critical role of various bioreceptors (electrical, optical, electrochemical, electrochemiluminescence, and photoelectrochemical) conjugation with advanced nanomaterials were studied and compared, critically. Finally, the role of MEMS technology and its integration with biosensing were surveyed for the one-site monitoring of stx in real samples. It is expected that, the biosensor technology can provide a promising strategy for the efficient

关键词： fiber optic sensor   fiber Bragg grating   sensor network   temperature measurement   liquid resin infusion   composite material  

摘要： In the proposed work, a fiber-optic-based sensor network was employed for the monitoring of the liquid resin infusion process. The item under test was a panel composed by a skin and four stringers, sensorized in such a way that both the temperature and the resin arrival could be monitored. The network was arranged with 18 Fiber Bragg Gratings (FBGs) working as temperature sensors and 22 fiber optic probes with a modified front-end in order to detect the resin presence. After an in-depth study to find a better solution to install the sensors without affecting the measurements, the system was investigated using a commercial Micron Optics at 0.5 Hz, with a passive split-box connected in order to be able to sense all the sensors simultaneously. The obtained results in terms of resin arrival detection at different locations and the relative temperature trend allowed us to validate an infusion process numerical model, giving us better understanding of what the actual resin flow was and the time needed to dry preform filling during the infusion process.

关键词： thermography   cold stress test   autonomic dysfunction   vasoconstriction   essential tremor   Parkinson's disease   skin temperature  

摘要： Early diagnosis of Parkinson's disease (PD) plays a critical role in effective disease management and delayed disease progression. This study reports a technique that could diagnose and differentiate PD from essential tremor (ET) in its earlier stage using a non-motor phenotype. Autonomic dysfunction, an early symptom in PD patients, is caused by alpha -synuclein pathogenesis in the central nervous system and can be diagnosed using skin vasomotor response to cold stimuli. In this study, the investigations were performed using data collected from 20 PD, 20 ET and 20 healthy subjects. Infrared thermography was used for the cold stress test to observe subjects' hand temperature before and after cold stimuli. The results show that the recovery rate of hand temperature was significantly different between the groups. The data obtained in the cold stress test were verified using Pearson's cross-correlation technique, which showed that few disease parameters like medication and motor rating score had an impact on the recovery rate of hand temperature in PD subjects. The characteristics of the three groups were compared and classified using the k-means clustering algorithm. The sensitivity and specificity of these techniques were analyzed using an Receiver Operating Characteristic (ROC) curve analyzer. These results show that this non-invasive technique can be used as an effective tool in the diagnosis and differentiation of PD in its early stage.

ISBN: (纸本)9787121426155