Investigation of an Improved Design for a Break-In Relay

Abstract

A design of break-in relay is proposed which uses the tested principles of the Creed relay for the magnet system, operating the contact system through the angular motion of a shaft mounted on the armature. The magnet system has no springs. It depends on the magnetic relations between a permanent magnet and a soft iron armature, the flux through which is controlled from the sending key. The contact system consists of two fixed terminals for each circuit joined by the contact arm on the armature shaft. Endurance and operating test show reliability of performance and freedom from keying transients.

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Document Details

Document Type
Technical Report
Publication Date
Apr 26, 1939
Accession Number
AD1158002

Entities

People

  • H. R. Miller

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Gaps
  • Aircrafts
  • Amplifiers
  • Angular Motion
  • Armatures
  • Circuits
  • Coils
  • Determinants (Mathematics)
  • Engineering
  • High Altitude
  • Long Life
  • Magnet Coils
  • Magnetic Circuits
  • Magnets
  • Materials
  • Military Research
  • Permanent Magnets
  • Power Amplifiers
  • Transmitters

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Radio communications and signal processing.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).