Showing papers on "Electromagnetic compatibility published in 1972"
TL;DR: In this article, the electromagnetic fields produced by a circular loop of current were considered for a homogeneous half-space model of the earth and integral representations for the subsurface field were evaluated numerically and presented in graphical form.
Abstract: The electromagnetic fields produced by a circular loop of current is considered for a homogeneous half-space model of the earth. The integral representations for the subsurface field are evaluated numerically and presented in graphical form.
32 citations
TL;DR: In this article, a probe using thin-film techniques to construct an array of extremely lossy dipoles makes possible an electromagnetic radiation monitor, having a 3dB bandwidth from 300 MHz to 18 GHz, isotropic response, and independence of polarization.
Abstract: A probe using thin-film techniques to construct an array of extremely lossy dipoles makes possible an electromagnetic radiation monitor, having a 3-dB bandwidth from 300 MHz to 18 GHz, isotropic response, and independence of polarization. The measurement range is from 20 ?W/cm2 to 20 mW/cm2.
16 citations
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01 Jan 1972
TL;DR: A submitted manuscript is the version of the article upon submission and before peer-review as discussed by the authors, while a published version is the final layout of the paper including the volume, issue and page numbers.
Abstract: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
14 citations
TL;DR: In this paper, the authors derived formulas for the currents in the load impedances of the three circuit configurations described in the preceding, and then presented a heuristic argument to the effect that solutions of these problems bracket the response of exposed unshielded one-and two-wire transmission lines arranged parallel to the axis of a rocket and close to its surface.
Abstract: Three circuits are analyzed. One consists of an isolated two-wire transmission line with terminating impedances; another of a single conductor with terminating impedances grounded to an infinite perfectly conducting plane; and, finally, a terminated two-wire transmission line in the vicinity of an infinite perfectly conducting plane. In all cases a plane monochromatic electromagnetic wave is incident on the wires with the electric vector parallel to their axes. The wires are oriented with respect to the incident field and the ground plane, if present, for maximum response. The objective is to derive formulas for the currents in the load impedances of the three circuit configurations described in the preceding. The writer then presents a heuristic argument to the effect that solutions of these problems bracket the response of exposed unshielded one-and two-wire transmission lines arranged parallel to the axis of a rocket and close to its surface. The established upper and lower bounds for the load currents are sufficiently close together to be of considerable practical value in the study of the electromagnetic compatibility of rockets.
11 citations
Patent•
04 Aug 1972
TL;DR: In this article, an electromagnetic coupling is connected mechanically with an electric machine whose armature winding is connected electrically with that of the electromagnetic coupling, and one of the two rotors of the coupling drives a load and the other rotor is driven by a driving machine.
Abstract: An electromagnetic coupling is connected mechanically with an electric machine whose armature winding is connected electrically with that of the electromagnetic coupling, and one of the two rotors of the electromagnetic coupling drives a load and the other rotor is driven by a driving machine. There is provided a transformer whose primary winding is supplied with electric power from the armature winding of the electromagnetic coupling and from which an exciting current is supplied to the field winding of the electromagnetic coupling or of the electric machine. By this arrangement, the whole installation will be compact and the stability will be high.
10 citations
TL;DR: Five comments are made on the above paper.
Abstract: Five comments are made on the above paper.' The first pertains to the overall approach used in this model in comparison with an earlier model. Other comments pertain to what appear to be errors in the paper. An important, but originally incorrect, equation is derived in the Appendix.
5 citations
18 Jul 1972
4 citations
01 May 1972
TL;DR: In this article, the authors provide a reference on methods for the reduction of electromagnetic interference and accomplishing electromagnetic compatibility in and between aircraft weapons systems, with contributions for improvements in the state-of-the-art of electromagnetic compatibility.
Abstract: : The material in the manual, with its contributions for improvements in the state-of-the-art of electromagnetic compatibility, provides a reference on methods for the reduction of electromagnetic interference and accomplishing electromagnetic compatibility in and between aircraft weapons systems.
3 citations
TL;DR: In this paper, the effect of the laser pulse on a metal in a static magnetic field has been studied and it is shown that the signal shape strongly depends on the sample dimension.
2 citations
18 Jul 1972
TL;DR: In this article, the antenna configuration and superstructure of the DD-963 Class Ship for electromagnetic compatibility was designed for the top-side electromagnetic environment and the various electronic subsystems.
Abstract: A systems approach to designing the antenna configuration and superstructure of the DD-963 Class Ship for electromagnetic compatibility is presented. Simulation of the topside electromagnetic environment and the various electronic subsystems is used to facilitate EMC analysis.
2 citations
01 Jul 1972
TL;DR: In this article, the effect of selected technical and operational considerations on the electromagnetic compatibility of present and projected deployments of radars in the 2.7 to 2.9 GHz frequency band is analyzed.
Abstract: : The effect of selected technical and operational considerations on the electromagnetic compatibility of present and projected deployments of radars in the 2.7 to 2.9 GHz frequency band is analyzed. The spectrum channel width relationship to transmitter power amplifier characteristics and pulse waveform parameters is explored. The results of assigning discrete channels for individual radars are presented.
01 Jun 1972
TL;DR: In this article, the potential effects of electromagnetic pulse (EMP) radiation on the Federal Aviation Administration electronic and electric systems with a focus on the determination of the feasibility of protecting these systems from EMP effects.
Abstract: : The purpose of the study was to assess the potential effects of electromagnetic pulse (EMP) radiation on the Federal Aviation Administration electronic and electric systems with a focus on the determination of the feasibility of protecting these systems from EMP effects. The report consists of five brief chapters on the characteristics of the high energy EMP phenomenon of a nuclear blast and subsequent equipment susceptibility via radiated and conducted interference. Six appendices document in detail the aspects of grounding, cable coupling, metallic penetrations, shielding, system susceptibility, circuit susceptibility, and the phenomenology of semiconductor damage. (Author)
01 Oct 1972
TL;DR: In this paper, a review and summary of the work completed to date to assess the interference potential of a Sanguine system to collocated pipeline systems is presented, which includes theoretical analysis of the problem, parametric studies of the influence of the important factors involved in ELF electromagnetic coupling between long conductors, assessment of the potential of an SanguINE system to produce corrosion on buried pipes, and field studies of voltages induced on pipes by commercial power systems.
Abstract: : The report is a review and summary of the work completed to date to assess the interference potential of a Sanguine System to collocated pipeline systems. The work includes theoretical analysis of the problem, parametric studies of the influence of the important factors involved in ELF electromagnetic coupling between long conductors, assessment of the potential of a Sanguine System to produce corrosion on buried pipes, and field studies of voltages induced on pipes by commercial power systems.
Patent•
27 Sep 1972
TL;DR: In this article, an array of mutually insulated electromagnetic wave absorber elements each responsive to an electric field component of the wave as it impinges thereon are arranged in a two-dimensional array to provide power conversion of randomly polarized electromagnetic waves such as sunlight.
Abstract: Electromagnetic wave energy is converted into electric power with an array of mutually insulated electromagnetic wave absorber elements each responsive to an electric field component of the wave as it impinges thereon. Each element includes a portion tapered in the direction of wave propagation to provide a relatively wideband response spectrum. Each element includes an output for deriving a voltage replica of the electric field variations intercepted by it. Adjacent elements are positioned relative to each other so that an electric field subsists between adjacent elements in response to the impinging wave. The electric field results in a voltage difference between adjacent elements that is fed to a rectifier to derive d.c. output power. The element pairs may be arranged in a two-dimensional array to provide power conversion of randomly polarized electromagnetic waves, such as sunlight.
01 Jul 1972