Skip to main content

Reflective values from DELTA

Danish company DELTA is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision. The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.
March 16, 2012 Read time: 2 mins
Danish company 199 Delta is introducing its new RetroSign GR3 Retroreflectometer for quality control and asset management of road signs and retroreflective materials with laboratory precision.

The company says that to achieve these goals the triple geometry retroreflectometer is offered with GPS and RFID (radio frequency identification) reader.

The handheld instrument is used for measuring the retroreflection of traffic signs. It measures the coefficient of retroreflection (RA) according to US and European standards.

"The triple geometry facilitates simultaneous measurements at various observation angles as proposed by ASTM (The 3930 American Society for Testing and Materials). The RetroSign GR3 measures simultaneously at observation angles at 0.2/0.33º, 0.5º, and 1º," says DELTA.

"The point aperture geometry specified by ASTM ensures realistic and accurate readings replicating realistic driving conditions. Furthermore it enables the user to determine if a microprismatic sign sheeting material has been applied correctly.

Due to the DELTA proprietary gradient index ultra hard coating (UHC) technology the sensor response meets the ASTM 1709 requirements combining the CIE (International Commission on Illumination) eye response and CIE illuminant A." DELTA says that the RetroSign GR3 is designed to easily interface with current and future ID tagging and asset management systems, and the internal memory stores up to 250,000 readings, "which essentially means that the instrument never runs out of memory."

For more information on companies in this article

Related Content

  • Construction trends in North America, looking to the future
    June 10, 2019
    Exciting changes in construction will reward the aware contractor - *Jeff Winke comments Hop in a car and drive anywhere in the US and chances are the drive will be on roads and highways that need patching, resurfacing, or widening, and bridges often show signs of needed maintenance. Sadly, things are in bad shape. On the last two report cards from the American Society of Civil Engineers, the US infrastructure scored a D+. This year’s report urges the government and private sector to increase spending
  • Stirling Lloyd launches Bond Coat 3, part of the Eliminator series
    July 7, 2016
    Stirling Lloyd Polychem has introduced a cold, spray-applied bond coat that it says provides enhanced adhesion values and superior in-situ performance Bond Coat 3, part of the Eliminator bridge deck waterproofing system, “represents a significant development” in the provision of tack and bond coats that are used to adhere the asphalt surfacing to the waterproofing. It provides a fast-curing tack-free, durable protective finish that resists contamination and damage from traffic. It removes the risk of
  • The AI-based SBM REMAX 600 mobile impact crusher
    October 26, 2022
    SBM Mineral Processing (SBM) has developed the REMAX 600 track-mobile impact crusher as a ‘technological platform’ for an AI (artificial intelligence)-based, fully automatic production monitoring and control system.
  • Cultivate better on-site safety awareness by leveraging technology with Leica Geosystems
    August 10, 2023
    When a vital fiber-optic cable was cut during construction work in Germany, the impact was huge. There were telecom disruptions affecting the greater Frankfurt area, all departures and landings at Frankfurt Airport were suspended, and Lufthansa’s global IT system crashed. Leica Geosystems says it is vital to put in place “strategies to protect people, equipment, and assets… and to emphasise the crucial role digital solutions play in ensuring safety.”