PORTABLE, EASILY INSTALLED WEIGHT ANALYZER RECORDS AXLE LOADING OF VEHICLES IN MOTION

SEVERAL DEVICES HAVE BEEN DEVELOPED OVER THE PAST 20 YEARS THAT WILL RECORD AXLE LOADS OF VEHICLES IN MOTION, BUT THEY HAVE BEEN LIMITED IN SCOPE BECAUSE THEY REQUIRE PERMANENT OR SEMIPERMANENT INSTALLATION IN THE PAVEMENT AND CAANOT BE TRANSFERRED READILY FROM ONE SITE TO ANOTHER. A NEW DEVICE, CURRENTLY UNDER TEST IN SEVERAL HIGHWAY DEPARTMENTS, OFFERS A FULLY PORTABLE CAPABILITY AND ALLOWS COMPLETE FREEDOM IN THE CHOICE OF MEASUREMENT SITES. THE AXLE WEIGHT ANALYZER MODEL WA 1 IS MANUFACTURED BY THE TELLUROMETER DIVISION OF PLESSEY ELECTRONICS CORPORATION, FARMINGDALE, NEW YORK, AND CAN BE INSTALLED ON ANY ROAD BY TWO TECHNICIANS IN LESS THAN 1 HOUR. IT IS POWERED BY A VEHICLE TYPE OF BATTERY AND WILL REMAIN UNATTENDED AS LONG AS REQUIRED, AUTOMATICALLY RECORDING AND CLASSIFYING, ACCORDING TO WEIGHT GROUPS, THE AXLES OF PASSING VEHICLES. THE SYSTEM CONSISTS BASICALLY OF TWO UNITS, A SENSOR AND A CLASSIFIER. THE SENSOR, WHICH IS ATTACHED TO THE ROAD SURFACE BY MEANS OF HIGH-MELTING-POINT ASPHALT, IS ESSENTIALLY A LARGE CAPACITOR THAT HAS A RUBBER-AIR DIELECTRIC. THE COMPRESSION OF THE DIELECTRIC UNDER THE WHEEL IS CONVERTED INTO A VOLTAGE PULSE BY THE CLASSIFIER AND IS THEN RECORDED INTO ONE OF ELEVEN WEIGHT GROUPS UP TO 40,000 LB. SATISFACTORY RESLTS ARE CLAIMED AT SPEEDS FROM 3 MPH TO 140 MPH FOR SINGLE AXLES AND 3 MPH TO 60 MPH FOR TANDEM AXLES. MALFUNCTONS ARE SENSED AUTOMATICALLY, TRIGGERING A CONTINUOUS BLAST FROM A BUILT-IN HOOTER. /HRB/

  • Supplemental Notes:
    • No 43, P 43
  • Publication Date: 1971

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00228115
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 3 1971 12:00AM