×

Method of installing magnetic sensor loops in a multiple lane highway

  • US 4,239,415 A
  • Filed: 11/06/1978
  • Issued: 12/16/1980
  • Est. Priority Date: 11/06/1978
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of installing magnetic sensor loops in a multiple lane highway comprising the steps of(a) placing magnetic field sensor means at one lateral edge of a first highway traffic lane,(b) locating a test loop having an adjustable contour in said lane laterally adjacent said sensor means,(c) varying the contour of said test loop while maintaining a steady electrical signal therein until a magnetic field of preselected magnitude is sensed at said sensor means, and then(d) permanently installing a magnetic sensor loop in said lane at the location and adjusted contour of said test loop.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×