Journal of Measurement Science and Instrumentation最新文献_第7页

Monitoring and detection with time series models 监测和检测与时间序列模型

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929464

P. Broersen, S. de Waele

引用次数: 0

RF sputtered and sol-gel prepared MoO/sub 3/-TiO/sub 2/ thin film gas sensors RF溅射和溶胶-凝胶法制备MoO/sub - 3/-TiO/sub - 2/薄膜气体传感器

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928853

K. Galatsis, Y.X. Li, W. Wlodarski, E. Comini, G. Faglia, G. Sberveglieri

引用次数: 1

Virtual water quality tests with an electronic tongue 用电子舌头进行虚拟水质测试

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928288

M. Lindquist, P. Wide

{"title":"Virtual water quality tests with an electronic tongue","authors":"M. Lindquist, P. Wide","doi":"10.1109/IMTC.2001.928288","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928288","url":null,"abstract":"The concept of the \"electronic tongue\" has been used in some experiments to establish the needs of fast and virtual monitoring of aqueous samples, e.g., in the monitoring of drinking water quality. More specifically, the performance of a proposed multi-electrode sensor system, used for voltammetric analysis of aqueous samples, is described. It is, for example, shown how such an \"electronic tongue\" can be used to monitor the quality of water in a production plant for drinking water. It is pointed out that conventional techniques often determine single concentration of the measured test while in many areas of measurement technology the methodology to extract adequate information from the environment, e.g., the electronic tongue, makes a total water quality estimate based on predetermined constraints extracted from complicated pattern structures. In this approach, experiments are conducted using an electronic tongue to virtually monitor the drinking water quality, measured from the raw water in the river to the tap water of the consumer. It can be shown that a system based on the proposed multi-electrode virtual sensor system is able to detect water quality changes. In these experiments, with the use of signal analysis and statistical multivariate methods we are able to estimate the water quality.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"7 1","pages":"1320-1324 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87872834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 34

Model based correction of Coriolis mass flowmeters 基于模型的科氏质量流量计校正

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928272

R. Storm, K. Kolahi, R. Rock

{"title":"Model based correction of Coriolis mass flowmeters","authors":"R. Storm, K. Kolahi, R. Rock","doi":"10.1109/IMTC.2001.928272","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928272","url":null,"abstract":"Coriolis mass flowmeters (CMF) are direct mass flowmeters and form a real mean along the flow profile. They do not exploit secondary physical properties of the specific liquid such as fluid velocity and fluid density in the measuring process but directly exploit the primary property inertia to measure mass flow. However, there is some evidence from field applications that the devices, in particular those using a single straight pipe, suffer from parameter variation. Therefore, the flowmeter has to be carefully adjusted with respect to physical properties of the liquid, operating conditions and site installation. When modeling the CMF using two oscillatory systems referring to the first and second mode, the mass flow enforces the coupling of these oscillatory systems. In the ideal case the coupling is only affected by the mass flow. Detailed analysis however reveals, that asymmetries in installation, sensors, actuators as well as pipe-inhomogeneities heavily contribute to this coupling and thus lead to a parameter variation. In the paper a model-based-approach is presented to identify the parameters of the model using an auxiliary excitation of the system.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"54 1","pages":"1231-1236 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86802045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Velocity dependent characteristics of modulated ultrasonic signal in gas flow 气体流动中调制超声信号的速度依赖特性

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928880

M. Niemann, V. Hans

引用次数: 4

Application of wavelet transformation in eddy current testing of steam generator tubes 小波变换在蒸汽发生器管涡流检测中的应用

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928846

J. Grman, R. Ravas, Ĺ. Syrová

引用次数: 10

A novel approach to designing aliasing-free space compactors based on switching theory formulation 一种基于开关理论公式的无混叠空间压缩器设计新方法

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928812

S.R. Das, M. Assaf, E. Petriu, W. Jone, K. Chakrabarty

引用次数: 32

Application of digital still camera to improve the extracting process of holographic vibration fringe pattern from interferogram 应用数码相机改进干涉图中全息振动条纹的提取工艺

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928242

Masanari Taniguchi, Tasuku

引用次数: 2

Performance measurement tool for packet forwarding devices 用于报文转发设备的性能测量工具

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928199

T. Kovácsházy, R. Szabó, P. Sétány

引用次数: 0

Broadband characterization of dielectric films for power-ground decoupling 电源-地去耦介质薄膜的宽带特性

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928230

J. Obrzut, R. Nozaki

{"title":"Broadband characterization of dielectric films for power-ground decoupling","authors":"J. Obrzut, R. Nozaki","doi":"10.1109/IMTC.2001.928230","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928230","url":null,"abstract":"We evaluated the dielectric permittivity and impedance characteristics of high dielectric constant polymer composite films. Such materials are being investigated by the electronic industry in response to the growing need for efficient integrated power-ground decoupling capacitance in microwave circuits and fast switching devices. In order to extend the dielectric measurements to the microwave range, we developed an appropriate expression for the input admittance of a thin film capacitance terminating a coaxial line. The theoretical model treats the capacitance as a distributed network and takes into consideration the wave propagation in the specimen section. The dielectric permittivity of several high dielectric constant materials for decoupling capacitance applications was evaluated at frequencies of 100 MHz to 10 GHz, and the corresponding impedance characteristics were determined directly in time domain. Polymer resins filled with ferroelectric ceramics showed low impedance values and flat impedance characteristics over a broad frequency range, which makes these materials attractive for power-ground decoupling applications in high-speed electronic circuits.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"55 1","pages":"1000-1004 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86180476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8