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

  • Topcon’s new earthmoving machine control system
    March 12, 2018
    Topcon Positioning Group announces a new 3D machine control system designed to offer a faster, modular and easily upgradeable aftermarket solution for excavation — the X-53x. “It features fully integrated GR-i3 receivers for precise positioning of the boom, stick and bucket at all times, as well as the MC-X1 controller, which offers compatibility with all brands and models of excavators and provides a customisable machine control platform to address future project demands,” said Murray Lodge, senior vice
  • The use of telematics in construction machines is growing
    May 20, 2015
    Demand for telematics technology is growing, as equipment users begin to lean the value of these systems – Alan Dron reports With construction projects increasingly operating to wafer-thin profit margins, any technological assistance that can keep the accounts in the black is welcome. This is particularly the case with those projects where contractors can share a larger slice of the profits if they complete their work ahead of schedule. The downside, of course, is that they also share the pain if the
  • Conference focuses on road design software
    February 23, 2012
    Trimble Dimensions 2009 takes a hard look at opportunities in a tough economy If attendance is the standard by which user conferences are measured, then Trimble Dimensions 2009 should be considered a success. The conference, which took place from 23-25 February at the Mirage Hotel in Las Vegas, USA, hosted more than 2,400 attendees, slightly exceeding last year. The strong attendance, in the face of global economic concerns, was seen by Trimble CEO Steven Berglund as a show of support for the company's tech
  • Europe’s drive for safer roads sets new targets
    January 9, 2019
    Europe’s drive for improved road safety will see new targets being set. Previous ambitious plans to reduce road casualty rates have not been achieved, so new strategies are being devised. The European Transport Safety Commission (ETSC) is setting out its latest plans. In 2010, the European Union renewed its commitment to improve road safety by setting a target of reducing road deaths by 50% by 2020, compared to 2010 levels. This target followed an earlier target set in 2001 to halve road deaths by 2010. A n