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

  • Leica launch next generation machine control receiver
    March 6, 2014
    The Leica iCON gps 80 machine control receiver is a compact and rugged GNSS receiver especially developed for a wide range of machine control applications to increase the overall positioning performance on all construction equipment. It easily and safely fits into any construction machine cabin, communicates seamlessly with all iCONtrol solutions on-site and integrates the iCON telematics fleet management software. The flexible communication provides smooth integration with equipment and solutions for OEM p
  • Cost effective road maintenance
    February 8, 2012
    Highway maintenance and repair is an easy target for cuts in highway budgets, but there are cost-effective measures that can be adopted as Patrick Smith reports. Road maintenance is an increasingly important industry that spans a worldwide market. Awareness of the need for a stable and sustainable international infrastructure, maintenance and creative rural road technologies are taking a stronger role as viable sources for a cost-effective means of preserving, developing and prolonging the life of roads wit
  • Controls rethinks compression machines
    August 12, 2019
    CONTROLS is aiming to stay one step ahead of its competitors with a new suite of fully automatic compression machines which also offer an extra dimension of connectivity, inside and outside the laboratory - Kristina Smith writes It is just over 50 years since CONTROLS started selling its first testing equipment, beginning with compression machines. Today, it is redeveloping all its compression machines, unveiling two out of a new range of four at this year’s bauma exhibition in March. “CONTROLS has comp
  • EU project looks at highway parking areas
    February 24, 2012
    Under the EU-funded LABEL project there will be an analysis of secure trucking stops. The European Union Road Federation (ERF) - International Road Federation (IRF), Brussels Programme Centre, looks at what it can achieve Whenever we have to travel long distances by car we are faced with the prospect of having to stop in order to refuel our vehicle and to rest a bit. As a consequence motorways can boast the presence of a high number of service stations, usually spread out at 20 to 30km intervals, ready to