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IRE Transactions on Instrumentation

Volume I-11: 1962

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Displaying Results 1 - 25 of 52
  • PDF Not Yet Available In IEEE Xplore

    Publication Year: 1962, Page(s): c2
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    Freely Available from IEEE
  • Index to IRE Transactions on Instrumentation

    Publication Year: 1962, Page(s):323 - 326
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    Freely Available from IEEE
  • Contributors

    Publication Year: 1962, Page(s):313 - 322
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  • Abstracts

    Publication Year: 1962, Page(s):310 - 312
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  • Improvements in Precision Coaxial Resistor Design

    Publication Year: 1962, Page(s):305 - 309
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1596 KB)

    The increasing demand for higher accuracy in coaxial line measurements and standards, particularly for the VHF and UHF bands, has led to the development of cylindrical metal film resistors of uniform surface resistivity in which the main characteristics have been considerably improved when compared to the cracked-carbon film resistors which have hitherto been used in precision coaxial resistor mou... View full abstract»

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  • A Technique for Precise Measurement of the Radio Frequency Structure of Pulsed Signals

    Publication Year: 1962, Page(s):302 - 304
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (451 KB)

    The development and evaluation of a technique for precise measurement of the instantaneous carrier phase of a pulsed signal is discussed1. This technique has an accuracy exceeding that of currently available discriminators and interferometers and provides a more complete measurement of the pulse frequency by measuring both leading and trailing edge frequencies. An accurate phase compari... View full abstract»

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  • A Phase Measuring System for Short RF Pulses

    Publication Year: 1962, Page(s):298 - 302
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (883 KB)

    The phase measuring system described in this paper was developed primarily for the purpose of determining the phase variation along a narrow RF pulse generated by a high-power traveling-wave tube. This techniques is also suitable for the precision measurement of relative phase shifts that arise when the tube parameters are varied over their operating range. It is a two-channel system that employs ... View full abstract»

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  • An Elastic Wave Method for the Measurement of Pulse-Power Density

    Publication Year: 1962, Page(s):294 - 298
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2185 KB)

    Experiments have shown that in addition to the well-known radiation pressure, another more efficient thermal mechanism results in the production of an elastic stress wave when an energy pulse is absorbed at the surface of an elastic body. This mechanism permits measurement of the peak-power density of pulses of electromagnetic energy by the use of an energy-absorbing surface, an elastic wave senso... View full abstract»

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  • A Precision Attenuation Standard for X Band

    Publication Year: 1962, Page(s):291 - 293
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1416 KB)

    The X-band attenuation is compared with that of a calibrated 30-Mc reference attenuator by means of a linear superheterodyne detector. Estimated accuracy is ±(0.010 db+0.005 db/10 db) for a dynamic range of 40 db. Frequency control of the signal and local oscillator klystrons, stabilization of the signal power level, and use of a stable IF amplifier have resulted in a drift for the standard of le... View full abstract»

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  • A High-Accuracy Microwave-Attenuation Standard for Use in Primary Calibration Laboratories

    Publication Year: 1962, Page(s):285 - 290
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1745 KB)

    This paper describes the theory and construction of an improved X-band rotary-vane attenuator. A maximum error of the order of 0.02 db per 10 db is obtained as opposed to 0.2 db per 10 db in commercially available models. Error reduction was achieved by careful attention to the mechanical construction of the unit and the reference setting at the maximum attenuation position. Deviations from the ca... View full abstract»

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  • Measurement of RF Peak-Pulse Power by a Sampling-Comparison Method

    Publication Year: 1962, Page(s):280 - 284
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2394 KB)

    A method is described whereby RF peak-pulse power may be measured by comparison with CW power at the same frequency. Comparison is made by first sampling the power in a small portion of the RF pulse width and subsequently sampling the same portion of the CW signal whose power level is accurately known. Sampling is accomplished with a fast SPDT coaxial solid-state switch synchronized with the RF pu... View full abstract»

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  • Microwave Pulse-Power Measurements

    Publication Year: 1962, Page(s):276 - 280
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (919 KB)

    This paper describes two techniques (crystal switch and pulsed receiver) for measuring peak power. Both systems sample the unknown RF pulse. The sample is then compared to an identical sample taken from an accurately known CW signal. A coherent detector is used to compare the levels of the two samples. Measurement can be made on pulse power levels down to -60 dbm. Neither measurement system is aff... View full abstract»

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  • A Millimeter-Wave Microcalorimeter

    Publication Year: 1962, Page(s):270 - 276
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2287 KB)

    A new type of microcalorimeter has been developed at the Electrotechnical Laboratory as the national millimeter-wave power standard in Japan. This is the single load type calorimeter using semiconductor Peltier thermoelements and a standard bolometer mount. The experiment has been successful in the frequency region of 35 kMc, and this method is considered to be suitable for millimeter-wave regions... View full abstract»

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  • The Application of Hall-Effect Devices to the Measurement of Microwave Power Density

    Publication Year: 1962, Page(s):264 - 269
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1082 KB)

    A theory is developed that indicates a Hall-effect device should function as both a collector and transducer of microwave electromagnetic energy giving an output dc voltage signal proportional to power density. Results are described of experiments using Hall-effect devices in coaxial lines and free fields. These are concerned with Hall device output voltage and VSWR of the coaxial line as frequenc... View full abstract»

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  • Microwave Power Measurements

    Publication Year: 1962, Page(s):257 - 263
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB)

    The essential requirements for accurate measurement of power at ultra-high frequencies are discussed and some comparisons made with corresponding achievements at low frequency. Attention is drawn to the limitations of well-established microwave techniques and to recent developments in the United Kingdom offering improved methods of dealing with some of the problems and new approaches toward their ... View full abstract»

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  • Recent Advances in Cesium Beam Technology and Characteristics of Rabi and Ramsey Cesium Beam Tubes 17 Inches Long

    Publication Year: 1962, Page(s):250 - 256
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1750 KB)

    The design characteristics for both Rabi and Ramsey microwave structure cesium beam tubes 17 inches long are presented. A discussion on the effects of the orientation of the oscillaing magnetic component of the microwave field with respect to the steady dc weak magnetic C field is given. Energy state spectra of both π and σ hyperfine energy transitions as a function of Hosc View full abstract»

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  • A Technique for Precise Measurement ot Short- and Long-Term Stability of Oscillators

    Publication Year: 1962, Page(s):248 - 250
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1151 KB)

    In the study of frequency and time measurement, it is necessary to measure and often to record the difference between unknown and standard frequency sources. The technique and equipment described are capable of making the measurement and recording the difference directly in parts from 1 in 106 to 1 in 1010. Neither the standard nor the unknown source need be offset. Variation... View full abstract»

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  • Performance of Precision Quartz-Crystal Controlled Frequency Generators

    Publication Year: 1962, Page(s):243 - 247
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1732 KB)

    The present nearly universally accepted frequency standard is the atomic cesium resonance at 9.192631770 Gc. However, for many reasons it is not practical to use a cesium device for continuous frequency generation. Secondary frequency standards such as quartz-crystal controlled oscillators are commonly used for this purpose. Recent improvements in oscillator, oven and crystal unit design have prod... View full abstract»

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  • The Atomic Time Scale

    Publication Year: 1962, Page(s):239 - 242
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (874 KB)

    The atomic time scale A.1 is based on an assumed frequency of 9 192 631 770 cps of Ephemeris time, and is derived from the operation of cesium resonators at 9 laboratories. Coordinated transmissions of time and frequency make the atomic time scale available. The International Committee of Weights and Measures may redefine the unit of time interval, the second, by an atomic transition in 1966. View full abstract»

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  • A Comparison of Direct and Servo Methods for Utilizing Cesium Beam Resonators as Frequency Standards

    Publication Year: 1962, Page(s):231 - 238
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2141 KB)

    Two systems, in which the frequency of a high quality quartz crystal oscillator can be controlled by a servo system employing as a reference frequency the (F = 4, mF = 0)↔(F = 3, mF = 0) transition in the ground electronic state of cesium133, have been in operation for about one year at the National Bureau of Standards. These systems are presently used in c... View full abstract»

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  • Operation and Improvements of a Cesium Beam Standard Having 4-Meter Interaction Length

    Publication Year: 1962, Page(s):224 - 230
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2601 KB)

    Some factors affecting a long cesium beam standard's accuracy are discussed and the results of two year's operation are given. Increasing the interaction length reduces the linewidth and thus the errors in measuring the line center, as long as the signal-to-noise ratio is sufficient. Errors due to nonlinearity of FM used in servo locking a crystal oscillator to the resonance are below 1¿¿10-1... View full abstract»

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  • The Optically Pumped Rubidium Vapor Frequency Standard

    Publication Year: 1962, Page(s):215 - 223
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1673 KB)

    Recent work on gas cell frequency standards has led to a clearer understanding of the capabilities of such systems. The physics of the quantum mechanical system allows the designer to start with a linewidth of approximately 1 part in 108 and with a signal-to-noise ratio, in a one-second noise bandwidth, in excess of 104. Carefully engineered systems have been demonstrated to ... View full abstract»

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  • A Thallium Beam Frequency Standard

    Publication Year: 1962, Page(s):212 - 215
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (733 KB)

    Following a proposal by Kusch a thallium atomic beam frequency standard has been constructed and put into operation. The main characteristic is that its frequency of 21,310 Mc is only very weakly affected by inhomogeneities of the C-field. The construction, which is similar to conventional cesium standards, differs from these in the following main points: a high (1000¿¿K) oven temperature, high (1... View full abstract»

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  • Characteristics of the 3-2 Line Double-Beam Maser of N14H3 and the Precision of Frequency Comparison

    Publication Year: 1962, Page(s):204 - 211
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1772 KB)

    The characteristics of a double-beam maser of N14H3 3-2 line were investigated. In the experiment, Zeeman effect is used for the determination of the reference frequency. The shift of the reference frequency due to a variation of 30 per cent in the ammonia pressure, that of 20 per cent in the focuser voltage or that of 10 per cent in the intensity of the perturbing magnetic f... View full abstract»

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  • N15H3 Double-Beam Maser as a Primary Frequency Standard

    Publication Year: 1962, Page(s):200 - 203
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    Ammonia masers are studied concerning their use as frequency standards. They oscillate on the J = K = 3 inversion line of N15H3. Single beam masers allow the realization of a frequency standard with a stability of 2-3.10-11, and an accuracy of about 10-9. Experiments on double beam masers suggest that their use makes it possible to obtain a stability of ... View full abstract»

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Aims & Scope

This Transactions ceased publication in 1962. The current retitled publication is IEEE Transactions on Instrumentation and Measurement.

Full Aims & Scope