Travelling Beam Device

Travelling Beam Device

Product Code : EL-BTLE-10461

Quick Answer: The Travelling Beam Device detects road surface irregularity on concrete or asphalt pavements. A 3 m beam with rigid wheels at each end and a wheel at the middle detects vertical deviation of the surface from a straight line between the end wheels, with a recording unit producing a graph of the deviations; the scale reads in 2 mm increments up to 10 mm and 5 mm increments from 10 to 25 mm, with a maximum vertical deviation of ±25 mm and a weight of approximately 55 kg.
The apparatus consists essentially of a beam with rigid wheels at the extremities and a wheel at the middle, which can detect any vertical deviation of the surface from a straight-line between the two wheels at the ends of the apparatus. It is used for detecting road surface irregularity and can be used for either concrete or asphalt pavements, and is supplied complete with a recording unit to obtain a graph of vertical deviations.

Technical Specifications :
Beam length: 3 m
Scale: 2 mm increments up to 10 mm; 5 mm increments from 10 to 25 mm
Max vertical deviation: ± 25 mm
Weight approx.: 55 kg

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Last Updated: September 2026

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