By Topic

IEEE Transactions on Instrumentation and Measurement

Issue 1 • Feb. 1971

Filter Results

Displaying Results 1 - 25 of 31
  • [Front cover]

    Publication Year: 1971, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (770 KB)
    Freely Available from IEEE
  • IEEE Instrumentation and Measurement Group

    Publication Year: 1971, Page(s): nil1
    Request permission for commercial reuse | PDF file iconPDF (127 KB)
    Freely Available from IEEE
  • IEEE Instrumentation and Measurement Group

    Publication Year: 1971, Page(s): nil1
    Request permission for commercial reuse | PDF file iconPDF (127 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 1971, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (120 KB)
    Freely Available from IEEE
  • Maintenance of a Laboratory Unit of Voltage

    Publication Year: 1971, Page(s):2 - 10
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1452 KB)

    Many of the problems involved in maintaining a laboratory reference group of standard cells with a reliability better than one part per million are outlined and solutions suggested. Methods are presented for reducing the number of measurements by approximately 40 percent from the ideal without seriously reducing the accuracy achieved, and procedures for assessing the quality of the group are indic... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An Excitation System for Piston Attenuators

    Publication Year: 1971, Page(s):10 - 16
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2017 KB)

    The problems of mode purity and the interaction effect generally necessitate a large insertion loss in precision waveguide-below-cutoff (piston) attenuators to obtain a linear output. An attenuator excitation system, used on a precision attenuation measuring system, that reduces these problems is described. Experimental work as well as theoretical considerations are discussed and designs are prese... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of a Low-Zero-Drift Thermocouple Element

    Publication Year: 1971, Page(s):16 - 19
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (713 KB)

    The criteria for the optinum design of a low-zero-drift thermocouple element for coaxial line power measurement is established. A procedure is presented for determining the thermoelectric voltages of a circuit and the geometric design of the element. The thermal and electrical resistivity of the component parts of the element are derived. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Laser Frequency Stabilization Techniques and Applications

    Publication Year: 1971, Page(s):19 - 22
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1390 KB)

    A review of progress in laser stabilization techniques and laser frequency measurement is given. Methods for relating laser frequencies to the time standard and methods for absolute laser frequency stabilization are described. Experimental information on reproducibility and noise characteristics is reported. Application to frequency and wavelength standards is discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Time and Frequency Transfer via Microwave Link

    Publication Year: 1971, Page(s):23 - 28
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2458 KB)

    A two-way microwave link between the Naval Research Laboratory and the Naval Observatory has been established to transfer both time and frequency information with high accuracy. Time and frequency information are transmitted simultaneously by algebraically adding together a precision 1-MHz signal and 1 pps, thus providing continuous phase information for frequency comparison and epoch time by the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cesium-Beam Servo System Using Square-Wave Frequency Modulation

    Publication Year: 1971, Page(s):28 - 32
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    This paper describes a new modulation and servo system that is being tested in the NRC long-beam cesium-frequency standard. Square-wave frequency modulation is employed; it is introduced by switching between two separately generated frequencies. The synthesizer producing these frequencies and the problems caused by switching transients are described. Since in a laboratory standard systematic error... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of an Ionization Chamber: Aerosol and Combustion Sensing System

    Publication Year: 1971, Page(s):33 - 37
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    What is the relationship that exists between an ionization chamber's current and the atmosphere to which it is exposed and what are the important considerations in ionization chamber design? The objective of this paper is to provide an answer to this question so that an ionization chamber type sensor can be designed to determine changes in the composition of a gas. The theory of ionization chamber... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Theoretical Response of a Polar-Display Instantaneous-Frequency Meter

    Publication Year: 1971, Page(s):38 - 48
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2865 KB)

    Polar-display instantaneous-frequency meters are finding increasing application as frequency monitor receivers and as modulation analyzers. These systems indicate signal frequency by the angular coordinate of a cathode-ray-tube spot and signal amplitude by the radial coordinate. This paper derives the responses (spot loci) produced by signals of interest, including the sum of two sinusoids, amplit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power Equations: A New Concept in the Description and Evaluation of Microwave Systems

    Publication Year: 1971, Page(s):49 - 57
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2003 KB)

    In the existing art, the description and evaluation of microwave systems is usually in terms of the complex wave amplitudes in the (assumed) uniform waveguide by which the components are interconnected. The interrelationships among these amplitudes are given by the scattering equations or indirectly by impedance parameters. This paper introduces an alternative description, based on power equations... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Direct-Reading Microwave Refractometer With Quartz-Crystal Reference

    Publication Year: 1971, Page(s): 58
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (922 KB)

    A microwave refractometer is described in which the usual reference cavity is replaced by a stable quartz-crystal oscillator. Direct digital readout of refractive index with least count of 0.01 N unit is provided. View full abstract»

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

    Publication Year: 1971, Page(s):58 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1134 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Computer-Aided Optimum Design of DC Measuring Instruments Using the D'Arsonval Mechanism

    Publication Year: 1971, Page(s):59 - 62
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (810 KB)

    A computer program has been developed for optimum design of dc measuring instruments that use the D'Arsonval mechanism. The computer selects specific components, mostly from a standard set, to produce an optimum design satisfying given performance specifications and constraints. The program allows the designer to interact with the computer and limit the choices available to it. It also enables the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multiframe High-Speed Image Converter Camera

    Publication Year: 1971, Page(s):62 - 64
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1177 KB)

    A twelve-frame 38 mm ?? 4 mm high-speed image converter camera is described. The exposure times can be step varied between 50 ns and 100 ms and the time interval between the first two frames step varied from 100 ns to 100 ms. The frame sequence can be chosen to be linear or geometrical. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Direct-Reading Method for Nonlinearity Index of Silicon Carbide Varistor

    Publication Year: 1971, Page(s):64 - 66
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1247 KB)

    This paper presents a direct-reading method for the nonlinearity index of silicon carbide varistor. Varistors of voltage rated from 50 V to 700 V can be measured without range switching. Measurement is made either at 0.1 and 1 mA or 1 and 10 mA of the varistor current. Precalibration is made by using an ordinary resistor. Measurement accuracy is -3 percent. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Measurement of Q in Low-Impedance Resonators

    Publication Year: 1971, Page(s):66 - 67
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1099 KB)

    This paper describes a modification to a conventional Q meter that permits direct measurement of Q in low-impedance tank circuits. The Q-meter voltage source was replaced by a wide-band current transformer operated in reverse, thereby lowering the instrument's insertion resistance from 0.02 to 0.0002 ohm. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On Temperature-Compensation Systems in Hydrostatic Pressure Transducers with Zener Piezodiodes

    Publication Year: 1971, Page(s):67 - 68
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    In this paper temperature-compensation systems in compensated pressure transducers with Zener piezodiodes are considered from the viewpoint of the pressure sensitivity obtained. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Equipment for Measurement of Road Surface Roughness as Applied to Rumble Strip Evaluation

    Publication Year: 1971, Page(s):68 - 70
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1983 KB)

    Equipment for evaluating the relative roughness (or smoothness) of a road surface is described. Although the equipment was developed primarily for investigation of various types and patterns of rumble strips for traffic control, it could also be applied to the evaluation of street or highway pavement conditions. The equipment measures the vertical movement of the rear axle of the test vehicle with... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Amplifier Whose Amplification Is the Exponential of an External Parameter

    Publication Year: 1971, Page(s):70 - 72
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1096 KB)

    A method is described to achieve the current amplification of an amplifier equal to ex, x being the angle of rotation of an axis. The systematic error is lower than 1 percent for |x| < 0.5. This device, used for the analog recording of the neutron monitor1 counting rate, solves the equation N(po) = N(p)??ex. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of a Test Set for Measuring Large-Scale-Integration Systems

    Publication Year: 1971, Page(s):72 - 74
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (669 KB)

    The ability to manufacture large-scale-integration (LSI) systems necessitated our building a special type of test set. The set is capable of controlling test equipment to produce measurements, storing the results, performing arithmetic operations on the results, and then carrying out logical decisions. The set contains a PDP8/S computer to which is interfaced a teletype unit, an A/D converter, var... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • RC Logarithmic Analog-to-Digital (LAD) Conversion

    Publication Year: 1971, Page(s):74 - 76
    Cited by:  Papers (7)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (490 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Interference Effect of Hot Wires

    Publication Year: 1971, Page(s):76 - 78
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (491 KB)

    Interference between two axially separated and crossed hot wires has been found. The effect was caused by the hot wake of the upstream wire and the effect of the wake could still be detected even after 4 ?? 103 diameters downstream. View full abstract»

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

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