Scheduled System Maintenance
On Friday, October 20, IEEE Xplore will be unavailable from 9:00 PM-midnight ET. We apologize for the inconvenience.
Notice: There is currently an issue with the citation download feature. Learn more.

IEEE Transactions on Instrumentation and Measurement

Issue 4 • Dec. 1987

Filter Results

Displaying Results 1 - 25 of 49
  • Table of contents

    Publication Year: 1987, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (2181 KB)
    Freely Available from IEEE
  • [Inside front cover]

    Publication Year: 1987, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (276 KB)
    Freely Available from IEEE
  • IMTC/87 paper survey [Special Issue intro.]

    Publication Year: 1987, Page(s): 865
    Request permission for commercial reuse | PDF file iconPDF (501 KB)
    Freely Available from IEEE
  • A nod of thanks

    Publication Year: 1987, Page(s): 866
    Request permission for commercial reuse | PDF file iconPDF (449 KB)
    Freely Available from IEEE
  • 1986 Instrumentation and Measurement Society awards

    Publication Year: 1987, Page(s): 867
    Request permission for commercial reuse | PDF file iconPDF (143 KB)
    Freely Available from IEEE
  • Capacitance-to-phase angle conversion for the detection of extremely small capacities

    Publication Year: 1987, Page(s):868 - 872
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1522 KB)

    Much progress has been made over the last few years in scaling down the dimensions of transducers. In particular, silicon micromachining technology has allowed small integrated sensors to be developed. The advantage of scaling of integrated capacitive transducers is mainly restricted by the limitations imposed by the capacitance change that can be resolved by the readout circuits. This paper descr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A switched-capacitor charge-balancing analog-to-digital converter and its application to capacitance measurement

    Publication Year: 1987, Page(s):873 - 878
    Cited by:  Papers (50)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1239 KB)

    An analog-to-digital converter is developed based on the charge-balancing principle. It consists of a switched-capacitor integrator, comparator, and digital logic circuit. Driven by the two phase clock, the integrator accumulates consecutively the incremental signal charge while extracting the quantized reference charge from the accumulated signal charge each time its output becomes positive, to k... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An autoranging switched-capacitor analog-to digital converter

    Publication Year: 1987, Page(s):879 - 882
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1100 KB)

    A novel switched-capacitor serial analog-to-digital (A/D) converter is developed based on the dual-slope integration. The analog voltage being converted is first accumulated into the capacitor in the form of charge. The quantized reference charge is then extracted from the accumulated signal charge until the voltage across the capacitor becomes zero. To increase the resolution, the autoranging fun... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A high-accuracy 10 Hz-1 MHz automatic AC voltage calibration system

    Publication Year: 1987, Page(s):883 - 887
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1010 KB)

    An automatic system for calibrating high-accuracy ac voltmeters and calibrators is described. The system is based on traditional coaxial, thermal voltage converters to provide ac voltage measurement uncertainties of 5–20 ppm in the audiofrequency range and 5–250 ppm over the full range from 10 Hz to 1 MHz at voltages between 0.5–600 V. Lower levels (0.01–0.5 V) are real... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer-aided DMM calibration software with enhanced AC precision

    Publication Year: 1987, Page(s):888 - 893
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4332 KB)

    In recent years small computers have come to an important role in the calibration of test and measurement instrumentation. They have been very effective in reducing the cost and increasing the quality and repeatability of these calibrations. This paper describes a system for calibrating digital multimeters in which the software is menu-based to give the user flexibility and ease of use. The user n... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An application of an LMS adaptive algorithm for a digital AC bridge

    Publication Year: 1987, Page(s):894 - 897
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (770 KB)

    This paper describes a new microprocessor controlled ac bridge method using an LMS adaptive algorithm. The main advantages of the method include: (i) the algorithm is simple to implement because no complex computations are actually involved, and (ii) slowly time varying impedances may also be measured or monitored. A realtime implementation of the bridge has been made and test results obtained hav... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Acquisition of small-signal frequency-domain measurements from switch-mode power supplies

    Publication Year: 1987, Page(s):898 - 901
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    An algorithm is presented for selecting an appropriate perturbation amplitude for acquisition of small-signal frequency-domain characteristics from switch-mode power supplies. Among a range of perturbation amplitudes, measured data characteristics are categorized as linear or nonlinear, based on user-specified tolerances. This algorithm is especially useful for computer-aided measurements which pe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improvements to numerical testability evaluation

    Publication Year: 1987, Page(s):902 - 907
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1155 KB)

    In this paper, some recent theoretical developments are reviewed and associated algorithms are proposed to determine the numerical testability for large multiinput multioutput systems. In our approach, the modified nodal analysis and the usual techniques for the sensitivity computation in the frequency domain are employed. According to the theoretical basis provided by Sen and Saeks [1] the testab... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A primary standard of voltage maintained in solid-state references

    Publication Year: 1987, Page(s):908 - 912
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1233 KB)

    In September 1984, the 54 saturated standard cells which had been used to maintain the Fluke corporate volt were removed from service and placed in storage. Since that time, Fluke's corporate volt has been maintained in 4 solid-state, 10-V references. Discarding the cells has much reduced the time and cost of maintaining the standard, has significantly decreased its uncertainty, and has much impro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Assessment of the performance of zener references of the highest quality

    Publication Year: 1987, Page(s):913 - 917
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (967 KB)

    Zener diodes are now playing an important part in the development of transfer voltage standards. The computer-controlled equipment that is described is capable of measuring these devices to 1 part in 107 at the 6-V level. A technique is described for characterizing the data obtained at various currents and temperatures in order to produce quantitative figures for the important parameter... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Precision calibration of phase meters

    Publication Year: 1987, Page(s):918 - 922
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1057 KB)

    Using the calibration of a phase meter with a nominally linear response as an example, a statistical approach is discussed for predicting worst-case offsets of the meter response characteristic from the value of the reference standard. A linear calibration curve is used to model the meter response, and statistical tests are described which test the appropriateness of the model and whether the calc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of a high-precision Universal Measuring Machine in standards laboratory measurements

    Publication Year: 1987, Page(s):923 - 927
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4294 KB)

    A computer-controlled high-precision Universal Measuring Machine (UMM) of advanced design is being applied to the calibration of high-precision artifacts in one- and two-dimensional space, aided by checks against master length reference standards. These artifacts, principally step-gages and roundness standards, require ratio-type techniques similar to those employed in calibration of electrical ra... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer tracking of white blood cells on protein-coated surfaces

    Publication Year: 1987, Page(s):928 - 933
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2619 KB)

    The kinetics of human white blood cell adhesion and detachment is of interest in evaluating the effects of synthetic materials for blood damage. In an experimental setup, a suspension of fluorescently labeled white blood cells and unlabeled red blood cells is drawn through a protein-coated glass tube at a constant flow rate. Interaction of the white cells with the inside surface of the tube is mon... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A versatile cardiac arrhythmia simulator

    Publication Year: 1987, Page(s):934 - 939
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2105 KB)

    This paper presents a versatile cardiac arrhythmia simulator whose generated waveform could be used in simulated testing of medical equipment, in demonstration, education or calibration processes. The linearization of an electrocardiogram (ECG) signal, the principle of coding and the programmability are analyzed. Finally, the implementation of the simulator using a CMOS 8-bit microprocessor and pe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Microcomputer-based data acquisition system for transient studies in hydrology

    Publication Year: 1987, Page(s):940 - 944
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (952 KB)

    The implementation of a microcomputer-based data acquisition system for transient studies in hydrology is presented. The system can be used with a sand tank model or an electrical analog model. The software and hardware aspects of the system are discussed and some preliminary results are presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of a high pressure secondary gauge using AuCr spin-glass system

    Publication Year: 1987, Page(s):945 - 949
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (995 KB)

    This paper offers an original approach to explain the metrologica! behavior of an Au + 6.4% at Cr pressure gauge under the influence of external parameters, at standard range of temperatures and for pressures up to 600 MPa. This is based on pressure and temperature effects on indirect RKKY and direct d-d exchange interactions between the spins associated with magnetic Cr impurities in spin-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Absolute-type position transducers using a pseudorandom encoding

    Publication Year: 1987, Page(s):950 - 955
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1071 KB)

    This paper describes an application of pseudorandom sequences to the encoding of absolute-type position transducers. A notable reduction in code-track number, and implicitly in the manufacturing complexity of the encoded disk, is achieved in this way. An absolute 360-position shaft encoder illustrates the features of the pseudorandom encoding technique that is described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characterization of a sampling voltage tracker for measuring fast, repetitive signals

    Publication Year: 1987, Page(s):956 - 960
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1056 KB)

    An equivalent-time sampling and digitizing system is described, together with test methods for characterizing its dynamic performance. Time-base errors, linearity errors, step response parameters, harmonic distortion, and frequency response are considered, and typical measurement results are included. The system is capable of state of the art measurements for signal frequencies up to 200 MHz. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characterizing square and triangular waveforms

    Publication Year: 1987, Page(s):961 - 963
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (610 KB)

    A method has been developed for determining the parameters and errors of square and triangular waveforms relative to idealized waveforms, even when the waveforms are highly distorted. The method is based on measurements obtained by sampling the waveform. Then, an idealized waveform is fitted to this sampled data using a least squared error algorithm. The errors in the waveform are defined as the d... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Real-time high accuracy measurement of multifrequency waveforms

    Publication Year: 1987, Page(s):964 - 970
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1559 KB)

    This paper discusses the operating principles and the main characteristics of a digital instrument for multifrequency signal analysis. The instrument provides real-time performance in a frequency range of 5–6 kHz with high measurement accuracy, obtained by combined windowing and interpolation of computed discrete Fourier transform (DFT) coefficients. Its hardware structure and measurement s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

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.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

SHERVIN SHIRMOHAMMADI
School of EECS
University of Ottawa
800 King Edward Ave.
Ottawa, Ontario
K1N 6N5 CANADA
Fax: 613-562-5664
shervin@discover.uottawa.ca