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IEEE Transactions on Instrumentation and Measurement

Issue 2 & 3 • June-September 1964

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Displaying Results 1 - 22 of 22
  • [Front cover]

    Publication Year: 1964, Page(s): c1
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  • IEEE Instrumentation and Measurement Group

    Publication Year: 1964, Page(s): c2
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  • Table of contents

    Publication Year: 1964, Page(s): 47
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  • Notes on Voltage-Tunable Nonlinear Resistance-Capacitance Networks

    Publication Year: 1964, Page(s):49 - 52
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (698 KB)

    Nonlinear resistances possess dynamic resistances that can be electrically varied over a range of many orders of magnitude. In this respect, they are far more nonlinear than contemporary nonlinear reactances. Some general criteria for obtaining maximum voltage tunability are discussed and several networks possessing zero-phase frequencies are presented for possible use in wide-range voltage-tunabl... View full abstract»

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  • In-Circuit Transistor Leakage Current Testing

    Publication Year: 1964, Page(s):52 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1779 KB)

    An instrument capable of measuring leakage current of transistors while the trarisistor remains in the circuit was developed. This instrument gives an accurate leakage current measurement in a large variety of circuits as well as being simple to operate, lightweight, battery powered, and portable for use in the field. This was accomplished by the measurement of the transistor leakage current ICBX,... View full abstract»

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  • A DC-RF Substitution Error in Duel-Element Bolometer Mounts

    Publication Year: 1964, Page(s):58 - 64
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1327 KB)

    Most of the coaxial type bolometer mounts in current use employ a pair of bolometer elements which are connected in series for the dc or audio-frequency bias powers, and in parallel at radio or microwave frequencies. In the frequency range where these techniques are most often employed, the dc-RF substitution error has been generally believed to be negligible. It is quite possible, however, for th... View full abstract»

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  • A New High-Speed Method of Testing Capacitors

    Publication Year: 1964, Page(s):65 - 71
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1294 KB)

    A new high-speed method of determining the capacitance and a quantity which the writers call the pulse series resistance (PSR) of an unknown capacitor is presented. The unknown capacitor is assumed to consist of an ideal capacitor and a series resistor. The test circuit consists of a low-impedance driver, a low-loss coupling capacitor, and a wide-band high-input/low-output impedance video-type amp... View full abstract»

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  • Further Analysis of the Modulated Subcarrier Technique of Attenuation Measurement

    Publication Year: 1964, Page(s):71 - 76
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1032 KB)

    The modulated subcarrier technique of attenuation measurement offers an accurate and convenient means of calibrating rotary vane attenuators. The technique also presents the possibility of being extended to other types of attenuation measurement. This paper gives an analysis of the output of the microwave detector, assuming it is completely linear; an error analysis of the technique; and a compari... View full abstract»

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  • Precision Detector for Complex Insertion Ratio Measuring Systems

    Publication Year: 1964, Page(s):76 - 81
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1815 KB)

    A precision, low-noise, highly sensitive, synchronous RF detector is described that permits simultaneous phase and level nulling in complex insertion ratio measuring systems. This insertion ratio is a measure of both the phase shift and magnitude change produced by a network when inserted in a transmission path. View full abstract»

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  • Swept Frequency Measurement of Phase Shift and Gain of a Pulsed Microwave Amplifier

    Publication Year: 1964, Page(s):81 - 88
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1236 KB)

    A system for measuring the gain and phase-shift properties of an amplifier with CW input and a pulsed output is presented. It uses commercially available components in simple circuitry and is free from balanced or calibrated detectors and amplifiers. It is readily automated. Specific equipment used to measure phase characteristics of a 15-kw pulsed traveling-wave tube in the 5.3- to 8.0-gigacycle ... View full abstract»

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  • Accuracy Standards for Phase-Shifting Transformers for Var Measurement

    Publication Year: 1964, Page(s):89 - 93
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1052 KB)

    New accuracy standards are proposed for phase-shifting transformers generally applied in polyphase circuits for var (reactive volt-amperes) measurement. Limiting values of ratio correction factor (RCF) and phase angle defect (PD) are given for three proposed standard accuracy levels, namely, 0.3 per cent, 0.6 per cent, and 1.2 per cent. These levels represent the maximum error in var measurement o... View full abstract»

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  • A Magnetic Null-Balance Displacement Measuring System Using Radio-Frequency Modulation

    Publication Year: 1964, Page(s):94 - 102
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3366 KB)

    Magnetic null-balance and a unique magnetic method of radio-frequency modulation combine to relate an electrical output precisely to the displacement of a small permanent magnet probe. The magnetic null-balance eliminates undesirable effects of magnetic material characteristics, and the use of a radio-frequency carrier provides large stabilizing gain with simple circuitry. The electrical analog ou... View full abstract»

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  • A New Approach to the Measurement of Power, Reactive Volt-Amperes, and Volt-Amperes by Electronic Analog Multiplication

    Publication Year: 1964, Page(s):103 - 107
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (890 KB)

    Present-day methods for the measurement and telemetering of active power and reactive volt-amperes (var) are, in general, based upon the zero-frequency term produced by the multiplication of two signals corresponding to the line voltage and the line current. Although these methods are usually satisfactory for local metering, various problems are presented when telemetering over long lines is consi... View full abstract»

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  • The Compensated Current Comparator; A New Reference Standard for Current-Transformer Calibrations in Industry

    Publication Year: 1964, Page(s):107 - 114
    Cited by:  Papers (55)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2346 KB)

    The compensated current comparator combines in one device the high ratio accuracy of the three winding ratio transformer or current comparator with the energy-transfer properties of a normal current transformer. Its ratio error is very small and so independent of the energy-transfer function that it can be operated at very high burden. Even negative burdens may be imposed, and, when operated in th... View full abstract»

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  • A Direct-Coupled DC Amplifier Compensated to 20 kc for Use with Photoemissive Devices

    Publication Year: 1964, Page(s):115 - 118
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (694 KB)

    The relative advantages of the use of a negative-feedback operational amplifier as an electrometer amplifier are investigated. This investigation was made because of the need for a detection system with a frequency response from dc to 20 kc. A theoretical analysis of the compensation circuits used to obtain extended frequency response is given. This analysis indicates a dependence of the compensat... View full abstract»

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  • Direct Display of Varying Current Ratio

    Publication Year: 1964, Page(s):119 - 122
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1393 KB)

    The ratio of two currents in function of any third quantity may be measured directly with the aid of pulse techniques. Sample pulses are taken from both currents by the same gating process while the duty cycle is changed in order to keep the time average of the pulsed denominator current constant. The time average of the numerator current is then proportional to the ratio of both currents. This pr... View full abstract»

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  • On the Applicability of the Comparison Method for Picosecond Pulse Instrumentation

    Publication Year: 1964, Page(s):123 - 128
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1037 KB)

    A graphical technique has been developed to allow the determination of the applicability of the Gaddy pulse-comparison system to the measurement of picosecond pulse characteristics. This paper presents the development of this graphical technique and its application to several pulse shapes. Experimental results are given which illustrate the usefulness of the graphical technique for the determinati... View full abstract»

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  • Calibration of a Kelvin-Varley Voltage Divider

    Publication Year: 1964, Page(s):129 - 139
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1735 KB)

    Earlier descriptions of methods for providing corrections to be applied to a Kelvin-Varley voltage divider can be misconstrued, particularly as the reasons for applying the corrections in the manner outlined are not obvious. The new method removes any ambiguity and presents the theoretical reasons leading to the procedure which may be carried as far as is justified by the instrument. The magnitude... View full abstract»

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  • Design and Error Analysis of High-Accuracy DC Voltage-Measuring Systems

    Publication Year: 1964, Page(s):139 - 145
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2016 KB)

    A systematic analysis of the errors inherent in the application of a resistance voltage divider to the measurement of high voltages is presented. The effects of potentiometer errors, leakage errors, and rod resistance are considered in turn. A newly developed high accuracy volt box providing output voltages of 0.5 v, 1.0 v, and 1.5 v for all input voltages ranging from 1.5 to 1600 v in steps of 0.... View full abstract»

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  • Atomic Clock Using Microwave Pulse-Coherent Techniques

    Publication Year: 1964, Page(s):146 - 152
    Cited by:  Papers (26)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3801 KB)

    In order to eliminate the light shifts and to increase the stability of gas-cell atomic clocks using optical pumping of the alkali atoms, the detection of a microwave pulse-induced coherent emission is used as the correction signal to lock a crystal oscillator to the atomic transition. Also, the line width of the O-O hyperfine transition is artificially narrowed by subjecting the atoms in the cell... View full abstract»

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  • Contributors

    Publication Year: 1964, Page(s):153 - 156
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  • Invitation for contributions

    Publication Year: 1964, Page(s): 156-a
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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
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Politecnico di Milano
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