Jiunnjyh Wang, J. C. Wambold, J. J. Henry

Research output: Contribution to journalArticlepeer-review


A microprocessor-based noncontact ranging system is discussed, which, along with a computer-based videographics system, constitutes a noncontact texture profiling system developed at the Pennsylvania Transportation Institute. Consisting of a 6502-based single board computer and a Polaroid ultrasonic circuit board, the ranging system is used to monitor the displacement between a traveling test vehicle and the road surface. The texture measurement is performed by the videographic system, which is capable of acquiring data only when it is within a range of plus or minus 1. 2 mm from the pavement.

Original languageEnglish
Pages (from-to)42-48
Number of pages7
JournalTransportation Research Record
Publication statusPublished - 1984 Dec 1

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Mechanical Engineering

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