Scheduled System Maintenance
On Tuesday, September 26, IEEE Xplore will undergo scheduled maintenance from 1:00-4:00 PM ET.
During this time, there may be intermittent impact on performance. We apologize for any inconvenience.

IEEE Transactions on Instrumentation and Measurement

Issue 4 • Dec. 1965

Filter Results

Displaying Results 1 - 17 of 17
  • [Front cover]

    Publication Year: 1965, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (113 KB)
    Freely Available from IEEE
  • IEEE Instrumentation and Measurement Group

    Publication Year: 1965, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (86 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 1965, Page(s): 171
    Request permission for commercial reuse | PDF file iconPDF (80 KB)
    Freely Available from IEEE
  • An International Comparison of Current-Ratio Standards at Audio Frequencies

    Publication Year: 1965, Page(s):172 - 177
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1149 KB)

    The results and analysis of an intercomparison between the National Research Council (NRC), Canada, and the National Bureau of Standards (NBS), Washington, D. C., of two contrasting types of current ratio standards (current comparator and current transformer) are presented. The agreement achieved between the two laboratories when their respective designs and methods of measurement were quite diffe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Development and Performance of Current Comparators for Audio Frequencies

    Publication Year: 1965, Page(s):178 - 190
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3865 KB)

    The design and construction of five different multiratio current comparators developed for use at audio frequencies is presented. The effectiveness of the various shields on the reduction of the current null detector error over the operating frequency range is shown. Equations are developed which illustrate the effect of several different arrangements of windings and grounded shields on the ratio ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Design and Performance of Multirange Current Transformer Standards for Audio Frequencies

    Publication Year: 1965, Page(s):190 - 204
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2684 KB)

    The design, construction, and performance of two nearly identical, multirange current transformers for operation 400 Hz to 10 kHz and with errors of only a few ppm are discussed. A general discussion of the parameters that influence the performance of single-stage transformers and their consideration in effecting minimum errors throughout a wide frequency band is included. Construction of the two ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transistor RC Oscillator with Single-Element Tuning

    Publication Year: 1965, Page(s):204 - 208
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (813 KB)

    RC oscillators based on two active phase shifters of the all-pass type prove to be tunable over a 10-to-1 frequency range by varying a single resistance. Harmonic distortion can be less than 1 percent over this range. Analysis is made of the variation of Q with tuning and the dependence of phase shift on detailed circuit parameters. Oscillators of this type can be used in telemetry to generate a s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Rejection of Coherent Interference in Optical Modulation-Demodulation Experiments

    Publication Year: 1965, Page(s):209 - 214
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1125 KB)

    Systems are described which reject both coherent interference (modulator-leakage pickup) and noise in laboratory modulation-demodulation systems, such as those used in microwave laser-communications experiments. The approach involves the use of audio-rate chopping and phase sensitive detection along with zero-IF or homodyne detection. Using these techniques, it is possible to make quantitative mea... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A System for Accurate Direct and Alternating Voltage Measurements

    Publication Year: 1965, Page(s):215 - 224
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2846 KB)

    A system for calibrating and using a group of dc and ac standards has been developed at NBS to meet increasing needs for greater accuracy in the measurement of direct and rms alternating voltages at audio frequencies. With a group of saturated cells, a universal ratio set as a potentiometer, a simplified self-calibrating volt box, and a new differential-thermocouple ac-dc comparator, an accuracy o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A New Bridge Network for Alternating-Current Magnetic Measurements

    Publication Year: 1965, Page(s):224 - 228
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (857 KB)

    The paper describes a transformer-coupled bridge suitable for magnetic measurements in the entire audio-frequency range. The bridge is simple in operation and the earth-capacitance effects of the components are extremely small. It does not require elaborate multiple screening of components or any special form of earthing, e.g., Wagner Earthing. It can be adapted easily for measurements under incre... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The NBS-A Time Scale-Its Generation and Dissemination

    Publication Year: 1965, Page(s):228 - 232
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1319 KB)

    In conjunction with the United States Frequency Standard (USFS) located at the National Bureau of Standards, Boulder Laboratories, two time scales have been established. The NBS-A time scale is referenced to the USFS in accordance with the definition of the atomic second as adopted by the 12th General Conference of Weights and Measures in October, 1964. The epoch of this scale was set to be nearly... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • LF-VLF Frequency and Time Services of the National Bureau of Standards

    Publication Year: 1965, Page(s):233 - 237
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1838 KB)

    The United States Frequency Standard and National Bureau of Standards Time Scale are described, and the techniques by which they are used to control the broadcasts from WWVB and WWVL, Fort Collins, Colo., are presented. A practical method for control of frequency and time broadcasts from WWV, Greenbelt, Md., is described and actual results shown. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Experimental Applications of Hall-Effect Wattmeters at 50 Hz

    Publication Year: 1965, Page(s):238 - 247
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1550 KB)

    Since Hall effect is the result of multiplying together a magnetic and an electric field, taking into account any phase difference between them, a wattmeter employing a semiconductor device of this kind is a logical development. The paper describes three experimental applications in the United Kingdom, including single- and three-phase instruments metering the power input to 132 kV grid lines and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Quantitative Theory of Magnetic Anisotropy Torque Transducers

    Publication Year: 1965, Page(s):247 - 254
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1324 KB)

    A companion paper [1] has given a historical review of torque transducers using the phenomena of magnetic-stress anisotropy and has described the design and operating principles which will yield devices of high precision. The present paper describes a physical theory of operation which yields quantitative results in reasonable accord with the measured data. View full abstract»

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

    Publication Year: 1965, Page(s):255 - 257
    Request permission for commercial reuse | PDF file iconPDF (3146 KB)
    Freely Available from IEEE
  • Index to IEEE Transactions on Instrumentation and Measurement Volume IM-14, 1965

    Publication Year: 1965, Page(s):258 - 4
    Request permission for commercial reuse | PDF file iconPDF (613 KB)
    Freely Available from IEEE
  • Invitation for contributions

    Publication Year: 1965, Page(s): 4-a
    Request permission for commercial reuse | PDF file iconPDF (101 KB)
    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.

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