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[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference最新文献

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Optimized windows for FIR filter design to perform maximally flat decimation stages in signal conditioning 优化窗口的FIR滤波器设计，以执行最大程度的平坦抽取阶段的信号调理
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161666
G. Andria, M. Savino, A. Trotta
{"title":"Optimized windows for FIR filter design to perform maximally flat decimation stages in signal conditioning","authors":"G. Andria, M. Savino, A. Trotta","doi":"10.1109/IMTC.1991.161666","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161666","url":null,"abstract":"New cosine windows are proposed which allow maximally flat low-pass FIR filter realizations in a multistage decimation process. In digital measuring devices, this strategy is performed in order to adjust the amount of data to the storage-capabilities of the processor, in conjunction with filtering the data set available after oversampling to remove digitally the noise power produced by quantization. The consequent increase of the number of effective bits improves the dynamic performances of digital instrumentation, especially at lower frequencies.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128884510","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: 6
The interpolated fast Fourier transform: a comparative study 内插式快速傅里叶变换的比较研究
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161614
J. Schoukens, R. Pintelon, H. Van Kamme
{"title":"The interpolated fast Fourier transform: a comparative study","authors":"J. Schoukens, R. Pintelon, H. Van Kamme","doi":"10.1109/IMTC.1991.161614","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161614","url":null,"abstract":"The properties of five interpolating fast Fourier transform methods (IFFT) are studied with respect to their systematic errors and their noise sensitivity, for a monofrequency signal. It is shown that windows with small spectral sidelobes do not always result in a better overall performance of the IFFT and that time-domain estimators can be more efficient than the IFFT methods analyzed. It is also, shown that time-domain techniques have a lower Cramer-Rao lower bound than the IFFT methods, which can result in more efficient estimates.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130740648","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: 303
C-V advisor knowledge base (CVA-KB): a high frequency C-V plot analysis tool C-V顾问知识库(CVA-KB):一个高频C-V图分析工具
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161658
B. Anders
{"title":"C-V advisor knowledge base (CVA-KB): a high frequency C-V plot analysis tool","authors":"B. Anders","doi":"10.1109/IMTC.1991.161658","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161658","url":null,"abstract":"A high-frequency capacitance-voltage (C-V) plot analysis tool, the CVA-KB, has been developed using an expert system shell. The CVA-KB is designed to be used by semiconductor diffusion engineers and technicians to help solve problems with the interpretation of C-V plots and to suggest a course of action in the solution of diffusion area problems as revealed by C-V analysis. The CVA-KB also aids in the training of C-V plot interpretation by providing a context-sensitive on-line help system.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132932595","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 review on the development of piezoelectric composites for underwater acoustic transducer applications 水声换能器用压电复合材料的研究进展
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161623
R. Ting
{"title":"A review on the development of piezoelectric composites for underwater acoustic transducer applications","authors":"R. Ting","doi":"10.1109/IMTC.1991.161623","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161623","url":null,"abstract":"For future sonar transducer applications that emphasize the detection of acoustical signals in a hydrostatic mode, new piezoelectric composite materials have been developed. Ceramic-polymer composites having '1-3' and '0-3' connectivity patterns are shown to exhibit much higher sensitivities than conventional PZT ceramics. Glass-ceramic composites are free of aging and have potential applications in standard transducers.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128229187","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: 27
Design of a real-time rotor inertia estimation system for DC motors with a personal computer 基于个人计算机的直流电机转子惯量实时估计系统的设计
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161598
P. Lin, E. E. Messal
{"title":"Design of a real-time rotor inertia estimation system for DC motors with a personal computer","authors":"P. Lin, E. E. Messal","doi":"10.1109/IMTC.1991.161598","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161598","url":null,"abstract":"Various traditional measurement techniques of moment of inertia were examined. Two computer-based measurement methods using the motor's torque constant, back EMF (electromotive force) constant, mechanical time constant, and armature resistance with straightforward formulations were investigated. A PC-based inertia measuring unit was designed by using a multifunction interface card for signal processing and acquisition circuits. This low-cost inertia computation and measurement system can be used to assist in modeling and controlling DC drives in real-time. The system can also be integrated into an existing DC motor measurement or testing laboratory. Experimental results are presented.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128641710","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: 13
Microwave probe for in situ observations of vegetation dielectric 植被介质原位观测用微波探头
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161674
F. Ulaby, M. Dobson, D. Brunfeldt
{"title":"Microwave probe for in situ observations of vegetation dielectric","authors":"F. Ulaby, M. Dobson, D. Brunfeldt","doi":"10.1109/IMTC.1991.161674","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161674","url":null,"abstract":"Field-portable dielectric probes have been developed using a vector network analyzer incorporating a voltage-controlled oscillator (VCO) with two double-balanced mixers for single-frequency operation from 400 MHz to 10 GHz. A capacitor model is used to obtain the reflection coefficient from the measured admittance of an open-ended coaxial line terminated in the material under test. Although the technique was designed for media of uniform dielectric and with thickness greater than or equal to the probe radius, simple modifications permit measurements of thin dielectric sheets and also disaggregated particles (such as needles) immersed in a host material. The portability and relatively low cost of the instrument make feasible in situ observations at remote locations. For many applications where sharp resonances are not expected, continuous dielectric spectra are not required. The data acquisition rate of the device is commensurate with measuring a variety of natural media where the dielectric constant, epsilon /sub r/, is found to be highly time variant. The device has been extensively field-tested.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134450769","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: 4
Control of particulate magnetic coating properties using dispersion quality measurement 用分散质量测量控制颗粒磁性涂层性能
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161619
M. J. Shah, T. Karis, G. M. Cuka
{"title":"Control of particulate magnetic coating properties using dispersion quality measurement","authors":"M. J. Shah, T. Karis, G. M. Cuka","doi":"10.1109/IMTC.1991.161619","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161619","url":null,"abstract":"A description is given of the use of a rheomagnetic instrument which provides an indirect measurement of the dispersion quality of a magnetic ink suspension used for coating application in the manufacture of magnetic disks. The instrument was designed, tested, and put on a pilot line to characterize the relationships between the dispersion quality measurement and functional characteristics of the magnetic disks. The results of tests performed during pilot production suggest that it is possible to predict some of the disk coating properties based on the dispersion quality of the magnetic particle suspension measured prior to coating. The results yielded a qualitative correlation between the in-situ measurements made on the magnetic particle suspension at the coater with the surface roughness due to flocs, the on-disk orientation ratio, and the signal to noise ratio. The instrument then can be used in a feedforward process control scheme to monitor and control the dispersion quality of the coating suspension to maintain the uniformity of magnetic and wear properties of the magnetic disks.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134640550","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 room temperature set-up to compare the quantized Hall resistance with 1 Omega standards 一个室温设置来比较量子化霍尔电阻与1欧米茄标准
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161567
G. Boella, G. Reedtz
{"title":"A room temperature set-up to compare the quantized Hall resistance with 1 Omega standards","authors":"G. Boella, G. Reedtz","doi":"10.1109/IMTC.1991.161567","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161567","url":null,"abstract":"A method has been developed to relate the mean value of the IEN primary group of 1- Omega standard resistors to the i=2 quantum level of the Hall resistance. It is based on an automated potentiometric system, a 36*360 Omega Hamon network, and a commercial Kusters current comparator bridge. A description of the equipment and of the measurement technique is given together with a detailed uncertainty budget. The typical fractional global uncertainty of the measurement of one standard deviation level is 5*10/sup -8/.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133523343","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: 5
A digital signal processing chip for iterative deconvolution restoration algorithms 一种用于迭代反褶积恢复算法的数字信号处理芯片
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161600
R.B. Whitted, P. Crilly
{"title":"A digital signal processing chip for iterative deconvolution restoration algorithms","authors":"R.B. Whitted, P. Crilly","doi":"10.1109/IMTC.1991.161600","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161600","url":null,"abstract":"A VLSI DSP chip is presented that will significantly improve the processing throughput for a general class of iterative deconvolution algorithms. The design will be based on a systolic array concept. This will enable these algorithms to be used for real time DSP applications which formerly due to speed limitations were not possible. The increased class of applications will enable further understanding of these applications. The higher throughput will also enable the researcher to further take advantage of the features unique to iterative deconvolution.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"22 14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116553683","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: 6
Dynamic imaging method of time fluctuating magnetic field distribution using CT technique 时间波动磁场分布的CT动态成像方法
[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference Pub Date : 1991-05-14 DOI: 10.1109/IMTC.1991.161606
H. Saito, K. Taniguchi, M. Nakajima
{"title":"Dynamic imaging method of time fluctuating magnetic field distribution using CT technique","authors":"H. Saito, K. Taniguchi, M. Nakajima","doi":"10.1109/IMTC.1991.161606","DOIUrl":"https://doi.org/10.1109/IMTC.1991.161606","url":null,"abstract":"A new method for imaging the time fluctuation of a dynamic magnetic field distribution using the computed tomography (CT) technique is described. Employing this method, the time fluctuation of a magnetic flux density distribution can be imaged as a moving image. The principle of this method is based on the static magnetic field imaging method which has already been proposed by the authors. An imaging experiment for demonstrating the efficacy of the proposed method is also shown.<<ETX>>","PeriodicalId":439545,"journal":{"name":"[1991] Conference Record. IEEE Instrumentation and Measurement Technology Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121986929","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
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