NONCONTACT MEASUREMENT OF SPEED BY MEANS OF CORRELATION METHODS

BERUEHRUNGSLOSE GESCHWINDIGKEITSMESSUNG MITTELS KORRELATIONSVERFAHREN

An instrument for the measuremnt of speed and covered distance by railroad trains. It is independent of the wheels. Two optical detectors sequentially scan the surface of the rails. The resulting electric signals are displaced by the traveling time between the two scanning spots. By means of a correlation technique and a control circuit a value is obtained which corresponds to the traveling time.

• Corporate Authors:

  Hasler Limited

  Belpstrasse 23
  3000 Bern 14,   Switzerland 
• Authors:
  • Meyer, H
  • Ryser, H
  • ZIMMER, C
• Publication Date: 1975-9

Language

• German

Media Info

• Features: References;
• Pagination: p. 33-47
• Serial:
  • Hasler Mitteilungen/Hasler Review
  • Volume: 34
  • Issue Number: 2
  • Publisher: Hasler Limited

Subject/Index Terms

• TRT Terms: Detectors; Measuring instruments; Tachographs
• Subject Areas: Railroads;

Filing Info

• Accession Number: 00130913
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Apr 21 2003 12:00AM