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IEEE Transactions on Instrumentation and Measurement

Issue 2 • June 1983

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Displaying Results 1 - 23 of 23
  • Table of contents

    Publication Year: 1983, Page(s): c1
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  • IEEE Instrumentation and Measurement Society

    Publication Year: 1983, Page(s): c2
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  • A High-Speed Digital Divider

    Publication Year: 1983, Page(s):309 - 312
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    This paper describes an efficient method for generating the quotient of two binary numbers at speeds comparable to existing multiplier chips. A digital divider is designed using the BEST LINE segmentation approximation. The reciprocal curve is subdivided into small sections, and a least squares straight line approximation is used to recreate each section. An analysis is presented to determine the ... View full abstract»

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  • Harmonic Analyzer/Generator

    Publication Year: 1983, Page(s):312 - 315
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (719 KB)

    A method of measuring the phase angle and magnitude of "n" harmonics corresponding to a periodic signal is described. The method includes the generation of sinusoidal bursts to reproduce significant components of distorted and complex signals; burst amplitude, burst initial phase, and burst frequency correspond, respectively, to harmonic amplitude, harmonic phase angle, and harmonic frequency. View full abstract»

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  • An RC Discharge Digital Capacitance Meter

    Publication Year: 1983, Page(s):316 - 321
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1873 KB)

    A simple digital capacitance meter which utilizes the RC discharge is proposed and the wide range capability from 0.1 pF to 10 mF and the excellent linearity to ± (0.02 percent of reading + 1 digit) are shown. The RC discharge capacitance meter provides the capacitance to be measured at a frequency which is reciprocal to the product of the discharge resistance and the measured capacitance. Theref... View full abstract»

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  • Frequency Control Loop with Digital Integrator

    Publication Year: 1983, Page(s):322 - 326
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (859 KB)

    A frequency control loop which locks the frequency of a 5-MHz quartz crystal oscillator to a value defined by the hyperfine transition of 199Hg+ ions is described. The properties of the closed loop are studied using the z-transform technique. The loop parameters are calculated in order to optimize the response time to some usual deterministic perturbations of the VCXO frequency. The results of thi... View full abstract»

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  • A Technique for Photoelectric and Photodielectric Effect Measurements at Microwave Frequencies

    Publication Year: 1983, Page(s):326 - 331
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1049 KB)

    This paper describes a novel technique, based on the use of a microwave bridge, for the determination of very small changes in the phase and attenuation constants of semiconductor materials. Using this technique, the photoelectric and photodielectric effects in a semiconductor sample under external illumination can be determined. The room-temperature photodielectric effect ¿¿¿r and the photoele... View full abstract»

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  • The Design of Extremely Low-Noise Camera-Tube Preamplifiers

    Publication Year: 1983, Page(s):331 - 336
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (923 KB)

    The design of current amplifiers suitable for amplifying the signal of camera tubes (or other similar transducers) is presented. Excellent noise performance can be obtained especially at low frequencies. Only one adjustment is required for shaping the frequency response and a very large bandwidth can be obtained. Experimental results are given for an amplifier designed for a camera tube with 15-pF... View full abstract»

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  • Interface Software Development for a Digital Cartridge Tape Drive

    Publication Year: 1983, Page(s):337 - 342
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1125 KB)

    A microcomputer-based controller for a digital cartridge tape drive is developed. Minimum interface hardware is used to achieve the required control by making the best use of the I/O ports available on a single board computer. The software-intensive approach gives increased reliability and flexibility to the control scheme while keeping the development time short. A simple two-processor multiproce... View full abstract»

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  • Design of Algorithms to Extract Data from Capacitance Sensors to Measure Fastener Hole Profiles

    Publication Year: 1983, Page(s):343 - 349
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1992 KB)

    This paper discusses algorithms used to process data from a multisegmented capacitance probe as the basis for a system for nondestructive testing of aircraft fastener holes. Measurement accuracies on the order of tenths of mils are achieved through a combination of accurate electronic measurement of capacity and use of the computer-implemented algorithms for estimating hole profiles. The estimatio... View full abstract»

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  • Interpolation Algorithms for Discrete Fourier Transforms of Weighted Signals

    Publication Year: 1983, Page(s):350 - 355
    Cited by:  Papers (229)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1221 KB)

    A new scheme is presented for the determination of the parameters that characterize a multifrequency signal. The essential innovation is that the signal is weighted before the discrete Fourier transform (DFT) is calculated from which the frequencies and complex amplitudes of the various components of the signal are obtained by interpolation. It is shown that by using the Hanning window for taperin... View full abstract»

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  • A Battery-Operated Data-Acquisition System

    Publication Year: 1983, Page(s):356 - 360
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2656 KB)

    We have developed a microprocessor-controlled data-acquistion system for unattended operation in locations where battery power is required. The system design incorporates flexibility into both the analog signal conditioning and the microprocessor control program, so as to accommodate a wide variety of sampling situations. Foremost among the special operational characteristics are: 1) continuous, b... View full abstract»

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  • Measurement of Small Dielectric Loss by Time-Domain Spectroscopy: Application to Water/Oil Emulsions

    Publication Year: 1983, Page(s):360 - 363
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (766 KB)

    Total reflection time-domain spectroscopic method as applied to moderate to strongly polar liquids is described. A difference method based on total reflection is applied to the study of dielectric properties of water/oil emulsions. Measurement of maximum dielectric loss as small as Emax = 0.005 is discussed. View full abstract»

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  • A Structure Function Representation Theorem with Applications to Frequency Stability Estimation

    Publication Year: 1983, Page(s):364 - 370
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1180 KB)

    Random processes with stationary nth differences serve as models for oscillator phase noise. The theorem proved here allows one to obtain the structure function (covariances of the nth differences) of such a process in terms of the differences of a single function of one time variable. In turn, this function can easily be obtained from the spectral density of the process. The theorem is used for c... View full abstract»

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  • A High-Precision Phase-Comparison Experiment Using a Geostationary Satellite

    Publication Year: 1983, Page(s):370 - 376
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1433 KB)

    A phase-comparison experiment using a two-way communication link at 14.2/11.5 GHz via a geostationary satellite and a single groundstation is described. Links of this kind can be used in applications where a high degree of phase synchronization is required between signals at frequencies of the order of gigahertz, which are derived from remotely located high-stability clocks, or where a high degree... View full abstract»

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  • A Microwave Method for the Determination of the Real Parts of the Magnetic and Dielectric Material Parameters of Premagnetized Microwave Ferrites

    Publication Year: 1983, Page(s):377 - 382
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1098 KB)

    A microwave method is presented for the determination of the real parts of the magnetic and dielectric material parameters of premagnetized microwave ferrites. It is based on the simultaneous utilization of certain dynamic modes that occur in a cylindrical cavity partly filled with a ferrite sample. Employing the corresponding eigenvalue equations of these modes, the material parameters are comput... View full abstract»

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  • Measurement of the Individual Harmonics Reactive Power in Nonsinusoidal Systems

    Publication Year: 1983, Page(s):383 - 384
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (379 KB)

    This paper presents a method of individual harmonics reactive power measurement for a load supplied by a nonsinusoidal source. The method consists of transforming the load-voltage and the load-current frequency spectra by multiplying both quantities by the quadrature voltages. Next, the products obtained are filtered with a pair of mutually symmetrical narrow-band filters. The mean value of the fi... View full abstract»

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  • ANA Calibration Method for Measurements of Dielectric Properties

    Publication Year: 1983, Page(s):385 - 387
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (650 KB)

    Routine network analyzer calibration procedures in measurements of the dielectric properties of materials using an open-ended coaxial line probe are frequently inadequate and limit the accuracy of measurements. A calibration method, which makes use of liquids whose properties are well known, is proposed to alleviate this limitation. It is shown that even one liquid used as a standard in place of a... View full abstract»

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  • A Photosensor-Based Measuring System for Precision Mechanics

    Publication Year: 1983, Page(s):387 - 388
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (391 KB)

    In this short paper we describe a general measurement method for quality control of curved surfaces, obtained by means of machine-tools. Such control can be performed by measuring the surfaces in correspondence to a discrete number of adjacent points. Our system is based on a matrix of analog position transducers using commercially available photocouplers, microprocessor controlled by appropriate ... View full abstract»

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  • Thevenin Equivalents and the Matrix Inverse

    Publication Year: 1983, Page(s):388 - 389
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  • Contributors

    Publication Year: 1983, Page(s):390 - 394
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  • [Advertisement]

    Publication Year: 1983, Page(s):394-a - 394-d
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  • IEEE Instrumentation and Measurement Society

    Publication Year: 1983, Page(s): 394-c
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Aims & Scope

Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications.

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Meet Our Editors

Editor-in-Chief
Prof. Alessandro Ferrero
Dipartimento di Elettrotecnica
Piazza Leonardo da Vinci 32
Politecnico di Milano
Milano 20133 Italy
alessandro.ferrero@polimi.it
Phone: 39-02-2399-3751
Fax: 39-02-2399-3703