A PROBING LOOK INTO LOOPS

THIS ARTICLE CONTAINS PRACTICAL SUGGESTIONS FOR SATISFACTORY INSTALLATION OF A LOOP DETECTION SYSTEM. EQUIPMENT IS NOT INTERCHANABLE IN THE TWO TYPES OF SYSTEMS IN USE, ONE OPERATING IN THE 20 KHZ RANGE AND THE OTHER IN THE 100 KHZ RANGE. PROBLEMS RELATING TO FIGURING THE INDUCTANCE OF A LOOP ARE DESCRIBED. SHIELDED CABLE IS RECOMMENDED FOR LEAD-IN. A DIAGRAM IS INCLUDED THAT SHOWS HOW TO BUILD AN INSTRUMENT THAT WILL MEASURE THE FIELD STRENGTH IN THE LOOP ABOVE THE PAVEMENT. /AUTHOR/

• Supplemental Notes:
  • VOL 7 NO 2 PP 17, 23, 30
• Authors:
  • MUIR, D
• Publication Date: 0

Media Info

• Serial:
  • IMSA Signal Magazine
  • Publisher: International Municipal Signal Association

Subject/Index Terms

• TRT Terms: Field strength; Inductance; Loops (Control systems); Vehicle detectors
• Old TRIS Terms: Loops (Electrical)
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226338
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 18 1972 12:00AM