Vaisala Road / Runway Surface and Depth Sensor DRS511

    Overview
     

     Overview

     


      Several measurements combined compactly in one sensor:

      • Surface Temperature Sensor
      • Ground Temperature Sensor at 60mm depth
      • Additional Depth Temperature Sensor at 300mm depth
      • Depression of Freezing Point  /  Chemical Amount
      • Black Ice Detection
      • Surface State; (water / ice layer thickness, presence of snow):
        • Dry
        • Moist
        • Wet
        • Frost
        • Ice
        • Snow
        • Trace (Moist & Treated)
        • Wet & Treated
      • Alarms and Warnings
        • Rain Warning
        • Frost Warning
        • Ice Warning
        • Ice Alarm
      • Thermally passive principle - does not disturb the measured surface
      • Thermal properties matched to road properties
      • 3cm wide so thermal characteristics adjust to match the road very quickly - improved accuracy
      • Robust epoxy design; the sensor may wear down by as much as 35mm
      • Can be installed in wheel track
      Services
      Documents