IEEE Transactions on Instrumentation and Measurement

Issue 1 • March 1967

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Displaying Results 1 - 20 of 20
  • [Front cover]

    Publication Year: 1967, Page(s): c1
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  • IEEE Instrumentation and Measurement Group

    Publication Year: 1967, Page(s): c2
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  • Table of contents

    Publication Year: 1967, Page(s): 1
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  • A K-Band Phase-Locked Transmitter-Receiver System for CW Balanced-Bridge Measurements

    Publication Year: 1967, Page(s):2 - 13
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4173 KB)

    A major sensitivity limitation common to most microwave CW balanced-bridge systems must be attributed to bridge distortion noise, caused by residual FM in the transmitted signal. The described superheterodyne transceiver minimizes this limit for a narrowband K-band bridge system by utilizing precise, coherent IF detection. A phase-locked local oscillator provides means for an arbitrary, stable pre... View full abstract»

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  • The Fundamental Limit to the Balance of a Microwave Bridge Containing a Dispersive Element

    Publication Year: 1967, Page(s):13 - 18
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1272 KB)

    An expression is derived for the maximum balance obtainable with a magic-T microwave bridge as a function of the variance of the frequency modulation (FM) noise pedestal of the microwave power source when one arm of the bridge is terminated by a dispersive component. This expression is verified experimentally and the long-term stability of the balance with/without a dispersive component is studied... View full abstract»

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  • Time Standards and Statistics

    Publication Year: 1967, Page(s):19 - 22
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    Time standards are usually characterized by terms such as "stability," "accuracy," and "precision," without general agreement as to what these terms mean. As a logical substitute to these terms, "relative instability,' "reliability," and "unreproducibility" are offered. Relative instability is the standard deviation of several measurements of the frequency ratio of any two clocks, divided by the s... View full abstract»

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  • A Pseudo-Random Noise Generator

    Publication Year: 1967, Page(s):23 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3224 KB)

    If the individual outputs of a cascade of bistable multivibrators are combined, we get useful waveshape, spectral, and probability-density function properties. Four modes are examined: equal amplitude, amplitude proportional to square root of frequency, amplitude proportional to frequency, and amplitude inversely proportional to frequency. View full abstract»

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  • Modified Technique for Measuring Dielectric Constants Using a Rectangular Cavity Resonator

    Publication Year: 1967, Page(s):32 - 48
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3672 KB)

    A modified technique using a partially filled rectangular cavity-resonator is described. This technique is analogous to the technique described earlier by the author in which a partially filled tunable cylindrical cavity resonator is employed. The theory and the method of operation of this technique are discussed, and the special advantages resulting from its use are pointed out. View full abstract»

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  • A Telemetering Unit for Radio Transmitter Output Power

    Publication Year: 1967, Page(s):49 - 50
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (363 KB)

    This paper describes a telemetering unit which monitors a varying dc voltage over a chosen period and then generates a code pulse train indicating the minimum and maximum values of voltage over that period. The unit was developed to permit remote monitoring of a radio transmitter output power and to use that transmitter to telemeter the information to a distant receiver. View full abstract»

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  • An Electronic Scheme for Measuring Exploding Wire Energy

    Publication Year: 1967, Page(s):51 - 62
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6669 KB)

    An improved electronic scheme has been developed for measuring exploding wire energy as a function of time. It eliminates the problem of serious errors due to induced voltages resulting from high rates of change of current. Such induced voltages can rise to many tens of kilovolts, completely masking the desired signals, unless they are nullified in some fashion. In this scheme only passive circuit... View full abstract»

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  • Application of Precision Connectors to High-Frequency Measurements

    Publication Year: 1967, Page(s):62 - 68
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2431 KB)

    The availability of precision coaxial connectors which meet the specifications of the IEEE Subcommittee on Precision Coaxial Connectors has removed an important obstacle to the development of higher accuracy measurements systems over the frequency range from audio to 18 GHz. Some of the advances in techniques and standards which have resulted or are presently possible for measurements of impedance... View full abstract»

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  • The Signal-to-Noise Ratios of Constant-Current and Constant-Temperature Hot-Wire Anemometers

    Publication Year: 1967, Page(s):68 - 73
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (965 KB)

    Expressions are derived for the signal-to-noise ratios of transistorized constant-current anemometers and constant-temperature anemometers. It is shown that the respective signal-to-noise ratios (in the same bandwidth) are not equal, but do not differ appreciably in a practical case. The minimum detectable signal (defined on the basis of unity signal-to-noise ratio and expressed in terms of equiva... View full abstract»

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  • A Low Speed Correlator

    Publication Year: 1967, Page(s):74 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1201 KB)

    For the purpose of determining the correlation between two given stationary time functions e1(t) and e2(t), a correlator capable of providing the value of the correlation coefficient was developed. The theory of operation and performance evaluation is discussed. The minimum discernible correlation coefficient of the correlator is found to be about 0.01. View full abstract»

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  • Improvements on a Device for Plotting Electrostatic Probe Characteristics in Variable Plasmas

    Publication Year: 1967, Page(s):77 - 80
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (770 KB)

    Langmuir-probe and double-probe characteristics corresponding to time-varying plasma properties can be displayed instant by instant on the screen of an oscillosope, provided the variation is periodical or at least meets certain requirements of reproducibility. The technique used, essentially an electronic stroboscope, has been described elsewhere under the name "plasmograph." The aim of this paper... View full abstract»

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  • A Solid-State Synchronous Switch for Use in Transient and Modeling Stuies

    Publication Year: 1967, Page(s):81 - 86
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1890 KB)

    This paper describes a new synchronous switch employing solid-state electronics, that extends the usefulness of the CRO in viewing transient phenomena in electrical circuits by means of a repetitive trace on the CRO. This device is particularly useful in normal research projects and has a unique place in repetitive and "one-time" switching in power system models such as the conventional transient ... View full abstract»

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  • Vectorsyn Force Generators for Three Axes Acceleration Measurement

    Publication Year: 1967, Page(s):86 - 94
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2170 KB)

    This paper discusses the design and test results of a proposed electromagnetic component, to be named the Vectorsyn, which provides an improved means of mass element restraint and support for a three axes acceleration measurement system. The principle of operation of the Vectorsyn and a functional block diagram for a three axes acceleration measurement system are given. An expression is derived fo... View full abstract»

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  • A Standard Attenuator and the Precise Measurement of Attenuation

    Publication Year: 1967, Page(s): 95
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  • Contributors

    Publication Year: 1967, Page(s):96 - 98
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  • IEEE Instrumentation and Measurement Group

    Publication Year: 1967, Page(s): 98a
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  • Invitation for Contributions

    Publication Year: 1967, Page(s): 98-b
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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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Editor-in-Chief

SHERVIN SHIRMOHAMMADI
School of EECS
University of Ottawa
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