PRINCIPLE OF A TRACK SWITCH EQUIPMENT OPERATED WITHOUT CONTACT BY THE PREMAGNETISATION OF AN INDUCTION COIL

KONZIPIERUNG EINES KONTAKTLOS ARBEITENDEN GLEISSCHALTMITTELS AUF DER GRUNDLAGE EINER VORMAGNETISIERTEN DROSSELSPULE

The article recalls the drawbacks of the conventional mechanical pedal, especially for operating axle counters, and then explains the theory of magnetic control by means of a circuit in which an acoustic frequency generator, a resistance and an induction coil are mounted in series. The control action is effected when the permeability of the induction coil is changed by the field of a permanent magnet of which the magnetic circuit is closed when wheel flanges pass over it.

• Corporate Authors:

  Transpress VEB Verlag fuer Verkehrswesen

  Franzoesische Strasse 13/14, Postfach 1235
  108 Berlin,   Germany 
• Authors:
  • Puschendorf, H
• Publication Date: 1977-9

Language

• German

Media Info

• Features: Figures; References;
• Pagination: p. 306-308
• Serial:
  • Signal und Schiene
  • Volume: 21
  • Issue Number: 9
  • Publisher: Transpress VEB Verlag fuer Verkehrswesen

Subject/Index Terms

• TRT Terms: Axles; Detectors; Proximity detectors; Signal devices; Signaling; Traffic counts
• Uncontrolled Terms: Axle counting
• Old TRIS Terms: Inductive signaling; Presence detectors
• Subject Areas: Operations and Traffic Management; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00172657
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM