PIEZO-ELECTRICAL AXLE LOAD SENSORS

This paper is presented in two parts. The first part descibes some of the findings of the programme of laboratory investigations into the fundamental properties of Vibracoax piezo-electric axle load sensors. After a brief outline of the composition and theory of operation of the sensors, some causes of variations in sensor sensitivity are examined. Sensor mountings are idenetified as a major cause of inconsistencies in signals produced by specific wheel loads, though significant problems have also been associated with non-uniformities along the lengths of unmounted cables. The development of new mounting techniques for piezo-electric axle load sensors is discussed. The second part of the paper describes a practical application of these sensors in providing the vehicle overweight bridge protection system at Coalport Bridge. For the covering abstract of the conference see TRIS 394811. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0852963041
• Supplemental Notes:
  • Papers from the International Conference on Road Traffic Data Collection, Institution of Electrical Engineers, London, December 5-7, 1984.
• Corporate Authors:

  Institution of Electrical Engineers

  Savoy Place
  London WC2R 0BL, NY  England  10016-5997
• Authors:
  • Moore, R C
  • Bettison, M
  • Davies, P
  • Stevenson, J T
  • FISHER, J
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 40-45
• Serial:
  • Publication of: INSTITUTION OF ELECTRICAL ENGINEERS
  • Issue Number: 242
  • Publisher: Institution of Electrical Engineers
  • ISSN: 0537-9989

Subject/Index Terms

• TRT Terms: Axle load force; Bridges; Cables; Conferences; Errors; Highway bridges; Installation; Load limits; Oversize loads; Overweight loads; Piezoelectricity; Protection; Sensitivity; Sensors; Variables; Vehicle weight
• Uncontrolled Terms: Causes
• Geographic Terms: United Kingdom
• Old TRIS Terms: Variations
• ITRD Terms: 3067: Axle load; 3455: Bridge; 4530: Cable; 8525: Conference; 6440: Error; 1527: Excess load (veh); 3840: Installation; 6911: Piezoelectricity; 9149: Prevention; 5928: Sensitivity; 6120: Sensor; 8119: United Kingdom
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Operations and Traffic Management; Planning and Forecasting; Security and Emergencies; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00394815
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0 85296304 1
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Aug 31 1985 12:00AM