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IEEE Transactions on Instrumentation and Measurement

Issue 4 • Dec. 1967

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Displaying Results 1 - 15 of 15
  • [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): 281
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  • A Proposed Ranging System with Application to VLF Timing

    Publication Year: 1967, Page(s):282 - 285
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (755 KB)

    In general, without a clock it is not possible to determine the range between a radio transmitting and receiving site by making only passive observations at the receiving site. However, if the medium is dispersive, signals transmitted simultaneously from the same site, at different carrier frequencies, will not arrive simultaneously at some distant point. Thus, the difference in arrival time is re... View full abstract»

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  • Phase-Sensitive Detector Nonlinearity at the Signal Detection in the Presence of Noise

    Publication Year: 1967, Page(s):285 - 294
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1961 KB)

    The essential nonlinearity characteristics of a phase-sensitive detector are studied theoretically, assuming that the input signal is a sine wave in the presence of additive narrow-band Gaussian noise. Three interesting cases of the nonlinearity of the phase-sensitive detector characteristics are analyzed by means of the expression which has been derived for the output signal-to-input noise ratio ... View full abstract»

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  • Statistical Effects in Automatic Random Equalizers

    Publication Year: 1967, Page(s):294 - 302
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1432 KB)

    As vibration testing becomes increasingly sophisticated, the statistical and operation interrelationships occurring in wideband random equalizers become more and more important. An underlying theory of equalizer operation is worked out, in order to refine the semiempirical methods presently used in equalizer design. Emphasis is placed on the interrelationships between control parameters and statis... View full abstract»

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  • False Interpretations of Point-Recorded Diagrams

    Publication Year: 1967, Page(s):302 - 306
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (746 KB)

    A formula is developed giving the exact mathematical expression of the simplest and usual interpretation of a point-recorded diagram, as is obtained by connecting the successive points with straight-line segments. The formula clearly indicates the spectrum of frequencies existing in such a straight-line interpretation. The most significant aspect of this analysis is represented by some low-frequen... View full abstract»

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  • Leakage Inductance and Interwinding Capacitance in Toroidal Ratio Transformers

    Publication Year: 1967, Page(s):307 - 314
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1261 KB)

    The small, but often significant, voltage ratio error of a ratio transformer is caused by leakage of magnetic flux and the flow of displacement currents around the windings. A model of the flux leakage pattern within a toroidal transformer is used in conjunction with an analysis of the effect of interwinding capacitances to predict the change of voltage ratio with frequency. Reasonably close agree... View full abstract»

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  • A New Type of Q Meter Using Variable-Width Pulse Excitation

    Publication Year: 1967, Page(s):315 - 319
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2384 KB)

    There are several well-known methods of measuring the Q of a resonant circuit, each with its limitations. Errors are introduced into measurements of high-Q values due to loading effects and radiation losses. A theoretical basis for the development of a Q meter which will not load a high-Q resonant circuit has been established. This new type of Q meter will use variable-width pulse excitation in li... View full abstract»

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  • The Design, Construction, and Performance of a Cesium-Beam Tube

    Publication Year: 1967, Page(s):319 - 325
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2592 KB)

    A discussion of salient aspects of the design, construction, and performance of the National Research Council 2.1-meter cesium-beam frequency standard is presented. Emphasis is placed on the characteristics of the cesium (F = 4)↔(F = 3) σ transitions as they are affected by a range of microwave power and weak dc-magnetic C-field intensities. The technique of C-field determination b... View full abstract»

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  • Simple Divider Yields Low-Frequency Calibration Pulses

    Publication Year: 1967, Page(s):325 - 328
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (654 KB)

    A single-stage pulse-frequency divider is presented which operates on 60 Hz to yield low-frequency pulses. The divider exhibits unusual stability against disrupting influences and the resulting pulses have exceptional timing accuracy. For example, the 1-second pulses (division by 60) are reliable over an ambient temperature range of from -40 to + 80°C. Division by 300, yielding pulses at 5-second... View full abstract»

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  • The pulse-width stability of multivibrators-power supply effects

    Publication Year: 1967, Page(s):329 - 338
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2430 KB)

    Those factors which influence the timing cycle of astable and monostable multivibrators are discussed in detail and a relation is derived which may be used to predict the sensitivity of frequency (or pulse width) to supply voltage changes. A compensating technique based upon the insertion of a compensating voltage into the multivibrator circuit is presented and discussed. Several compensating circ... View full abstract»

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  • Contributors

    Publication Year: 1967, Page(s):339 - 341
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  • IEEE Instrumentation and Measurement Group

    Publication Year: 1967, Page(s): 341a
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  • Invitation for Contributions

    Publication Year: 1967, Page(s): 341-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.

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