A Spiral-Transmission-Line Technique for Detecting Slot Apertures in Shield Enclosures

Abstract

This note presents another concept, SPIRA, for monitoring the integrity of a shield enclosure. In this concept a helically wound conductor is used as a transmission line in conjunction with the shield enclosure. This type of structure produces an external magnetic field with a strong component parallel to the axis of the helix. This allows the helix to lie parallel to potential slot apertures in the shield enclosure. A similar helix is used on the other side of the shield wall to monitor penetrating magnetic fields.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1987
Accession Number
ADA200082

Entities

People

  • Carl E. Baum

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Delta Functions
  • Detectors
  • Electric Fields
  • Equivalent Circuits
  • Frequency
  • Generators
  • Impedance
  • Inductance
  • Magnetic Fields
  • Magnetic Flux
  • Simulations
  • Simulators
  • Solenoids
  • Transmission Lines
  • Wavefronts
  • Waves

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Mathematical Modeling and Probability Theory.
  • Plasma Physics / Magnetohydrodynamics