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Neural modelling of dynamic systems with non-measurable state variables 具有不可测量状态变量的动态系统的神经建模
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612371
C. Alippi, V. Piuri
{"title":"Neural modelling of dynamic systems with non-measurable state variables","authors":"C. Alippi, V. Piuri","doi":"10.1109/IMTC.1997.612371","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612371","url":null,"abstract":"The paper deals with neural modelling of dynamic processes. Attention is focused on processes characterised by non-measurable states and their modelling with nonlinear recurrent neural networks. A relationship is developed which, for such models, correlates the actual prediction error with the past ones.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132193145","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
An integrated current-controlled current source with programmable gain for charge amplifier applications 集成电流控制电流源与可编程增益的电荷放大器应用
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612381
M. Stockinger, G. Brasseur, N. Kero, T. Sauter
{"title":"An integrated current-controlled current source with programmable gain for charge amplifier applications","authors":"M. Stockinger, G. Brasseur, N. Kero, T. Sauter","doi":"10.1109/IMTC.1997.612381","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612381","url":null,"abstract":"We present an integrated current-controlled current source (CCCS) for an n-well 1.2 /spl mu/m-CMOS-process with 5 V supply voltage allowing positive and negative current values. The gain is digitally programmable within a range of 1/16 to 1 by switching four binary weighted input branches on or off, which facilitates automatic gain control. Its output resistance is higher than 10 G/spl Omega/ due to active-feedback cascode techniques. Linearity is better than 0.25%, the bandwidth varies from 1 MHz for unity gain to 10 MHz for a gain of 1/16 without any gain overshoot, as simulations with Cadence/SpectreS show. With an on-chip capacitor connected to the output, a precise current integrator ASIC can be created. We discuss its application as a charge amplifier for capacitive sensors. Sensitivity can be adjusted to different values of the sensor capacitance by simply changing the CCCS-gain. The charge amplifier shows a bandwidth ranging from 3.5 Hz to 350 kHz and an output voltage settling time of 2 /spl mu/s for a 1 V/sub pp/ output voltage.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134108323","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
High pressure measurements-the state of the art 高压测量——最先进的技术
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.610186
R. Wisniewski
{"title":"High pressure measurements-the state of the art","authors":"R. Wisniewski","doi":"10.1109/IMTC.1997.610186","DOIUrl":"https://doi.org/10.1109/IMTC.1997.610186","url":null,"abstract":"The actual pressure measurement problems related to pressure standards, transducers, high pressure scales and their fixed points for pressure ranges up to 3 GPa are discussed.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117309311","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: 1
A new approach to improve the testing accuracy of ball bearing guide 一种提高滚珠导轨检测精度的新方法
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612357
Xiaofeng Cai, E. Zhang, R. Gao
{"title":"A new approach to improve the testing accuracy of ball bearing guide","authors":"Xiaofeng Cai, E. Zhang, R. Gao","doi":"10.1109/IMTC.1997.612357","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612357","url":null,"abstract":"In this paper, a novel measurement system that can precisely measure the accuracy of recirculation ball bearing guide is described. This system can effectively realize precise measurement of the parallelism /spl delta/1 between the center of the upper face of sliding block and the bottom face of rail and the parallelism /spl delta/2 between the side face of sliding block and the same side face of rail. At the same time, it can also measure the friction force between sliding block and rail. DSP techniques are applied to improve testing accuracy and analyze error sources. Some suggestions for further analysis on this subject are provided.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115885791","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: 0
Optimization of generalized predictors 广义预测器的优化
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.603916
K. Koppinen, J. Yli-Hietanen, U. Astola
{"title":"Optimization of generalized predictors","authors":"K. Koppinen, J. Yli-Hietanen, U. Astola","doi":"10.1109/IMTC.1997.603916","DOIUrl":"https://doi.org/10.1109/IMTC.1997.603916","url":null,"abstract":"Polynomial FIR predictors are generalized to include also the prediction of sinusoidal signals. A general optimization method is presented for optimizing these predictors, which gives optimal FIR predictors with respect to the noise gain, the autocorrelation matrix of additive noise and frequency response as special cases.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116245977","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: 11
Improvements of reactive power and energy measurements insensitive to frequency variations 对频率变化不敏感的无功功率和能量测量的改进
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612428
B. Djokic, P. Bosnjakovic
{"title":"Improvements of reactive power and energy measurements insensitive to frequency variations","authors":"B. Djokic, P. Bosnjakovic","doi":"10.1109/IMTC.1997.612428","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612428","url":null,"abstract":"The paper describes the implementation of successive frequency-to-voltage and voltage-to-frequency conversion instead of phase locked loop (PLL) to achieve a wide band of frequency multiplication allowing reactive power and energy measurements in the range of 40-70 Hz of input signal frequency. A phase shifting which provides independence of the shifted signal on the capacitor value used in the phase shifter is described. This feature ensures better long term stability and wider temperature operating range of the meter with retention of high accuracy.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124700657","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: 0
A new low-cost voltage-to-voltage transducer for distorted signals 一种用于畸变信号的新型低成本电压-电压传感器
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612427
A. Ferrero, R. Ottoboni
{"title":"A new low-cost voltage-to-voltage transducer for distorted signals","authors":"A. Ferrero, R. Ottoboni","doi":"10.1109/IMTC.1997.612427","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612427","url":null,"abstract":"During the last few years, measuring equipment has evolved towards the massive use of digital techniques and devices. The performance of the Analog-to-Digital Converters (ADC) and the computing devices has constantly improved, and very accurate and flexible instruments can now be realized with bandwidth up to several kilohertzs. Unfortunately, the transducers used to adapt the input signals to the suitable ADC input levels have not improved in the same may, so that the metrological characteristics of a DSP-based measuring equipment are mainly determined by its input transducers. Hence, trying to improve the performance of such transducers is of utmost importance. This paper proposes a new voltage-to-voltage transducer, based on a capacitive divider and /spl Sigma//spl Delta/ modulation techniques. It features a bandwidth wider than that of traditional magnetic and capacitive voltage transformers. Indications are given on the transducer design, and the results of experimental tests on a lab prototype with primary voltage up to 500 V are reported.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124750659","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: 14
Validating surface temperature measurements 验证表面温度测量
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612425
L. de Vries-Venter, G. Hancke
{"title":"Validating surface temperature measurements","authors":"L. de Vries-Venter, G. Hancke","doi":"10.1109/IMTC.1997.612425","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612425","url":null,"abstract":"The object of this experiment was the establishment of the best measurement capability (BMC) of surface temperature measurement. The BMC of a laboratory is an indication of the care taken in improving the accuracy of measurement and the methods used to avoid the introduction of errors. Experiments were done and a positive conclusion could be made on the validity of the proposed method.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121476167","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: 1
A new direction in nuclear medicine imaging: Pinhole tomography 核医学成像的新方向:针孔断层成像
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612418
B. McKee, M. Chamberlain, T. Hewitt
{"title":"A new direction in nuclear medicine imaging: Pinhole tomography","authors":"B. McKee, M. Chamberlain, T. Hewitt","doi":"10.1109/IMTC.1997.612418","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612418","url":null,"abstract":"We have mounted a pinhole collimator on a rotating gamma camera and used it to assess the imaging characteristics of pinhole SPECT. Phantoms consisting of point and line sources of technicium-99 m have been imaged to determine the response function of the system throughout the field of view. The images were reconstructed using a filtered-backprojection algorithm for cone-beam geometry, equivalent to the Feldkamp algorithm. The reconstructed images indicated that the system response function is quite constant in width throughout the field of view, but varies in amplitude by about 30%. Some streak artifacts are visible, particularly from activity near the edges of the field of view, and may arise because of the incomplete projection sampling. These preliminary studies will be extended by assessing the potential for improved reconstruction techniques, and assessing the performance at lower counting rates, as in potential clinical applications.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122692404","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: 1
A Gray-code-based fiber optic liquid level transducer 一种基于灰度码的光纤液位传感器
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.604043
G. Betta, A. Pietrosanto, A. Scaglione
{"title":"A Gray-code-based fiber optic liquid level transducer","authors":"G. Betta, A. Pietrosanto, A. Scaglione","doi":"10.1109/IMTC.1997.604043","DOIUrl":"https://doi.org/10.1109/IMTC.1997.604043","url":null,"abstract":"A level transducer based on a six fiber sensing elements is proposed. A 1 m full scale, 4 mm resolution prototype was realized and tested. The adopted hardware and software strategies assure high static and dynamic performance, and good reliability, as confirmed by the experimental tests carried out on fuel liquids. The possibility of remote control together with a low cost suggests its applicability in a large number of applications.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129979839","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: 50
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