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Journal of Measurement Science and Instrumentation最新文献

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Measuring frequency- and temperature-dependent permittivities of food materials 测量随频率和温度变化的食品材料介电常数
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928225
S. Nelson, P. G. Bartley
{"title":"Measuring frequency- and temperature-dependent permittivities of food materials","authors":"S. Nelson, P. G. Bartley","doi":"10.1109/IMTC.2001.928225","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928225","url":null,"abstract":"An open-ended coaxial-line probe was used with sample temperature control equipment designed for use with the probe to measure permittivities of some liquid, semisolid, and pulverized food materials as a function of frequency and temperature. Graphical data for the dielectric constant and loss factor of homogenized macaroni and cheese, ground whole-wheat flour, and apple juice illustrate the diverse frequency- and temperature-dependent behavior of food materials and the need for measurements when reliable permittivity data are required.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"36 1","pages":"975-978 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83338015","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: 66
An approach to fault diagnosis based on a hierarchical information fusion scheme [and turbine application] 一种基于层次信息融合的故障诊断方法[及汽轮机应用]
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928202
Q. Fu, Yi Shen, Jian Qiu Zhang, S. Liu
{"title":"An approach to fault diagnosis based on a hierarchical information fusion scheme [and turbine application]","authors":"Q. Fu, Yi Shen, Jian Qiu Zhang, S. Liu","doi":"10.1109/IMTC.2001.928202","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928202","url":null,"abstract":"A novel approach, based on a hierarchical information fusion scheme and using the different symptoms of the faults in the various locations of a system, to fault diagnosis of the system is presented. Firstly, the data fusion of various location sensors in a system is used to guarantee the reliability and accuracy of measurements. Then, the different symptoms of the faults in various locations of a system are classified via multiple neural networks to obtain local decisions. These local decisions are fused by fuzzy integral in which the relative importance of each network is also considered. Finally, we apply this approach to a model of a turbine system. The simulation results verify the effectiveness of the proposed method.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"44 1","pages":"875-878 vol.2"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81210264","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: 2
Determination of parameter d50c of hydrocyclones using improved multidimensional alpha-cut based fuzzy interpolation technique 基于改进的多维切割模糊插值技术确定水力旋流器参数d50c
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929474
Kok Wai Wong, C. Fung, H. Eren, Tom Gedeon
{"title":"Determination of parameter d50c of hydrocyclones using improved multidimensional alpha-cut based fuzzy interpolation technique","authors":"Kok Wai Wong, C. Fung, H. Eren, Tom Gedeon","doi":"10.1109/IMTC.2001.929474","DOIUrl":"https://doi.org/10.1109/IMTC.2001.929474","url":null,"abstract":"In most control and engineering applications, the use of fuzzy system as a way to improve the human-computer interaction has becoming popular. This paper reports on the use of fuzzy system in mineral processing specifically in determining the parameter d50c of hydrocyclone. However, with the input/output data provided to build the fuzzy rule base, it normally results in a sparse fuzzy rule base. This paper examines the use of the improved multidimensional alpha-cut based (IMUL) fuzzy interpolation technique to improve the prediction capability of the sparse fuzzy rule base.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"1 1","pages":"1602-1606 vol.3"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77341099","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: 2
Novel opportunities for optical level gauging and 3D-imaging with the photoelectronic mixing device 利用光电混合装置进行光学液位计和3d成像的新机会
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929567
P. Gulden, M. Vossiek, P. Heide, R. Schwarte
{"title":"Novel opportunities for optical level gauging and 3D-imaging with the photoelectronic mixing device","authors":"P. Gulden, M. Vossiek, P. Heide, R. Schwarte","doi":"10.1109/IMTC.2001.929567","DOIUrl":"https://doi.org/10.1109/IMTC.2001.929567","url":null,"abstract":"The novel Photoelectronic Mixing Device (PMD) possesses a variety of unique characteristics that open up new fields for optical distance measurement technology. PMD devices for the first time allow the use of straightforward modulation and system concepts previously constrained to radar and ultrasonic systems. This paper first reviews the PMD principle and then points out the differences between conventional optical systems and PMD systems. The requirements of two different applications, level gauging and 3D object position measurement, are discussed. Suitable system concepts are introduced and verified with experiments. The results prove the feasibility of single pixel sensors capable of high accuracy and multitarget resolution as well as low cost 3D imaging systems.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"1 1","pages":"2099-2103 vol.3"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91225977","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: 35
Data glove with a force sensor 带有力传感器的数据手套
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928844
K. Tarchanidis, J. Lygouras
{"title":"Data glove with a force sensor","authors":"K. Tarchanidis, J. Lygouras","doi":"10.1109/IMTC.2001.928844","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928844","url":null,"abstract":"This paper presents a data glove equipped with a force sensor. The circuits and the construction are also described. The glove is selected to be a rubber coated cotton glove. The sensors are firmly attached to the rubber coated glove using cyanoacrylic glue. The force sensor is made of a steel plate substrate were the commercial strain gauges are attached. The plate is attached on the thumb. The strain gauges bridge is powered by a digital current source. A digital sine is produced by a microcontroller and a DAC with current output. At the peak the microcontroller produces a digital output signal. It is used by the data acquisition system. The force sensor presents a linear response and a resolution of 0.38 N and a sensitivity of 0.05 V/N. The combination can be used in robotics, telecheric applications, biomechanics and virtual reality applications.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"30 1","pages":"380-385 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73555226","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: 112
Comparison of some algorithms to estimate the low and high state level of pulses 几种估计脉冲低、高状态电平的算法的比较
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928794
Jr. O.M. Solomon, D. R. Larson, N. Paulter
{"title":"Comparison of some algorithms to estimate the low and high state level of pulses","authors":"Jr. O.M. Solomon, D. R. Larson, N. Paulter","doi":"10.1109/IMTC.2001.928794","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928794","url":null,"abstract":"The Subcommittee on Pulse Techniques (SCOPT) of the Instrumentation and Measurement Society is developing a new standard for pulse analysis. Currently we are working on the estimation of the low and high state levels of pulses. Since the waveforms considered contain two states, the terms \"low state\" and \"high state\" may be used interchangeably with the terms \"state 1\" and \"state 2,\" respectively. The estimation of other pulse parameters, such as pulse amplitude, transition duration (rise and fall time), overshoot and undershoot pulse duration or width, and settling parameters, depend on the estimate of the levels for the low and high states. So, these algorithms are the foundation for the proper estimation of pulse parameters. Some other names for the low and high state levels of pulses are \"base magnitude\" and \"top magnitude\", as well as \"base-line\", \"bottom line\" and \"top-line\". Previous work described algorithms for estimating the magnitude of the state 1 and state 2 levels that are based on histograms of the pulse waveform. However, the algorithms leave many choices to the user. Due to these user choices, different results can be obtained for the state 1 and state 2 levels that are all compliant with the standard. We compare the results of several different algorithms.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"101 1","pages":"96-101 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73466578","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: 19
Applications using a low-cost baseband pulsed microwave radar sensor 应用采用低成本基带脉冲微波雷达传感器
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928819
A. Duzdar, G. Kompa
{"title":"Applications using a low-cost baseband pulsed microwave radar sensor","authors":"A. Duzdar, G. Kompa","doi":"10.1109/IMTC.2001.928819","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928819","url":null,"abstract":"This paper presents several measurement applications using a low-cost baseband pulsed microwave radar sensor. The sensor transmits and receives Gaussian pulses having a full width half maximum of 150 ps and peak amplitude of 7 V via two ultrawide band antennas in a bistatic configuration. Time-domain scattering and ranging measurements of metallic plates and cylinders in addition to fluid volume gauging were performed Target range was calculated by applying the time-of-flight concept. Range uncertainty was less than 6 mm. For a pulse repetition frequency of 5 MHz, an upper limit on the power spectral density (PSD) of the radiated pulses was calculated. The PSD upper limit had a peak of -74 dBm/Hz at a frequency of 1.5 GHz.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"72 1","pages":"239-243 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76550951","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: 21
A new method for a self-calibrating capacitive sensor 一种电容式自校准传感器的新方法
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928859
T. Mohr, U. Ehrenberg, H. Uhlmann
{"title":"A new method for a self-calibrating capacitive sensor","authors":"T. Mohr, U. Ehrenberg, H. Uhlmann","doi":"10.1109/IMTC.2001.928859","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928859","url":null,"abstract":"In this paper a new method for a self-calibrating capacitive sensor for threshold liquid level measurement is presented. The basic theoretical ideas are described and illustrated. The theoretical results are proven by field simulations. For practical experiments, a container was manufactured and special electronic circuits were developed. The values of the capacitors are measured, converted into digital values and transferred to the computer. Experimental results are depicted.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"194 1","pages":"454-459 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76623540","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
Detection of airway obstruction and sleep apnea by analyzing the phase relation of respiration movement signals 通过分析呼吸运动信号的相位关系检测气道阻塞和睡眠呼吸暂停
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928810
P. Várady, S. Bongár
{"title":"Detection of airway obstruction and sleep apnea by analyzing the phase relation of respiration movement signals","authors":"P. Várady, S. Bongár","doi":"10.1109/IMTC.2001.928810","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928810","url":null,"abstract":"The authors introduce a novel diagnostic method of a sleep disorder, sleep apnea syndrome (SAS), which may cause numerous irreversible complications with severe consequences without treatment. The sleep laboratory test called polysomnography is the main aid to the experts to recognize and obtain the grade of SAS. A polysomnographic record consists of several channels such as nasal air flow, blood pressure, abdominal and thoracic excursion, blood oxygen saturation etc. Several well-known methods exist to analyze one or more of these signals. We present a method, which uses the phase relation information between the abdominal and thoracic respiration movements in order to detect the grade and type of SAS.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"4 1","pages":"185-190 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76678833","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: 10
Interface design for smart transducers 智能传感器接口设计
Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929481
W. Elmenreich, W. Haidinger, H. Kopetz
{"title":"Interface design for smart transducers","authors":"W. Elmenreich, W. Haidinger, H. Kopetz","doi":"10.1109/IMTC.2001.929481","DOIUrl":"https://doi.org/10.1109/IMTC.2001.929481","url":null,"abstract":"This paper describes design issues on smart transducer interfaces to hide the internal node properties and allow a decoupling of applications from communication properties like message timing, flow control and bus access. We present a smart transducer interface that incorporates three different interfaces (real-time service, diagnostic/maintenance, configuration/planning). Further decomposition of real-time systems can be provided by hiding the sensor properties from the application program. Therefore, a data structure that represents a model of the environment is introduced. This extra interface reduces the complexity of the application and enables reuse of the application code. Finally, an application of the presented concepts is described in a case study featuring a mobile robot.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"38 1","pages":"1642-1647 vol.3"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78272612","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: 23
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