IEEE Transactions on Instrumentation and Measurement

Volume IM-20 Issue 3 • Aug. 1971

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Displaying Results 1 - 14 of 14
  • [Front cover]

    Publication Year: 1971, Page(s): c1
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  • IEEE Instrumentation and Measurement Group

    Publication Year: 1971, Page(s): nil1
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  • [Breaker page]

    Publication Year: 1971, Page(s): nil1
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  • Table of contents

    Publication Year: 1971, Page(s): 137
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  • Automatic Data Plotting Method for Functions of Many Variables

    Publication Year: 1971, Page(s):138 - 142
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2095 KB)

    A general method for automatically plotting a function of many variables is described. The variables, as analog signals, are sampled by a voltage-sensor circuit, and data are recorded only when the variables are at predetermined values. Presentation is on an intensity modulated X-Y oscilloscope. Thus if y = y(x1, x2, ..., xn), then graphical displays can be made of... View full abstract»

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  • Impulse-Peak Measurement by Means of Pulse-Lengthener Circuit With Source Follower

    Publication Year: 1971, Page(s):143 - 146
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (503 KB)

    A method of measuring peak voltage of an impulse by a cascaded two-stage pulse-lengthener circuit followed by a source follower is described. The method permits the measurement of the peak voltage of an impulse with a width as narrow as 15 ns. The measurable peak voltage ranges from +1 to +5 V. The 1 percent decay time of the meter reading is about 5 s. The meter can therefore be read without hurr... View full abstract»

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  • One-Way Time Synchronization via Geostationary Satellites at UHF

    Publication Year: 1971, Page(s):147 - 153
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2003 KB)

    This paper describes an experiment designed to evaluate the accuracy of one-way clock synchronization using geostationary satellites with the propagation delays calculated from the satellite's orbital elements. Propagation delays from a ground transmitter via satellite to each of five locations in the North and South American continents were measured and compared with the calculated values. Three ... View full abstract»

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  • Fiber Optics in Explosive Functioning-Time Measurement

    Publication Year: 1971, Page(s):154 - 158
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (917 KB)

    Functioning time of an explosive device can be defined as the first indication of light output after the application of a stimulus. A technique based on the use of fiber optics in conjunction with an optical sensor and amplifier is described. View full abstract»

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  • Frequency Stability Analysis of a Grounded-Base Voltage-Controlled Crystal Oscillator

    Publication Year: 1971, Page(s):158 - 161
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1262 KB)

    The frequency stability is analyzed for a voltage-controlled grounded-base crystal oscillator by matrix algebra. The validity of the resulting equation was verified by measurements on an oscillator with a 110-MHz fifth-overtone quartz crystal. Sensitivity coefficients for the oscillator are computed with the aid of a time share computer program and its sweep range is drawn by a plotting routine. View full abstract»

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  • A First-Order Correction to Sliding Short Behavior With Application to the Problem of Measuring Small Losses

    Publication Year: 1971, Page(s):162 - 169
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (962 KB)

    This paper describes a theoretical and practical investigation of the effect of the losses in a sliding short and associated line, using the G-reflectometer measuring technique for the determination of small losses. The evaluation of the modified measuring method is based on Engen's method for the description of microwave systems. Practical examples are included. View full abstract»

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  • Preliminary Study of a Nonbridge Method for Precision Measurement of Capacitors at Low Frequencies Using Operational Amplifiers and Resistance Standards

    Publication Year: 1971, Page(s):170 - 176
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1399 KB)

    High-precision measurements of capacitance and dissipation factor can be made without capacitor standards using active circuits known as gyrators, which are constructed with high-gain operational amplifiers and precision resistors. A theoretical analysis of the technique is carried out here using one particular gyrator circuit. A preliminary experimental study yielded values of dissipation factor,... View full abstract»

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  • Real-Time Spectrum Analyzer

    Publication Year: 1971, Page(s):176 - 177
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (343 KB)

    A technique is described that has made it possible to build a multichannel analyzer with the final resolution determined by a set of identical filters rather than a series of different filters. View full abstract»

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  • Active I-V Characteristic Measurement

    Publication Year: 1971, Page(s):177 - 178
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (287 KB)

    The use of I-V characteristics to determine the behavior of active devices is increasing. The standard swept frequency schemes suffer from frequency limitations. A technique for pulsed I-V measurements that can be employed in most laboratories is described and its application to measuring the active behavior of an IMPATT device is demonstrated. View full abstract»

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  • Contributors

    Publication Year: 1971, Page(s):179 - 180
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    Freely Available from IEEE

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
800 King Edward Ave.
Ottawa, Ontario
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