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RoadVista Awarded Patent For Handheld Retroreflection Measurement Technology

RoadVista, a Gamma Scientific Company and leading manufacturer of precision highway-safety measurement instruments, today announced it has been awarded a patent for the technology underlying its innovative handheld, multiple-angle retroreflectometers. U.S. Patent # 7,961,328 B2 has been awarded for the technology’s unique ability to simultaneously measure two or more annular bands of retroreflected light, as well as provide users with continuous, user-adjustable entrance and observation angles. This technology is field-proven in RoadVista’s Model 922 and Model 932 handheld retroreflectometers, which also feature lab-grade accuracy and comprehensive data management tools.

 

The Model 922: Simultaneous, dual-angle measurement.

 

The industry's only annular aperture instrument, the Model 922 measures observation angles of 0.2°and 0.5°, with an entrance angle of -4°(European specifications also available)....

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Handheld Instruments: StripeMaster

For cost-effective pavement-marking measurements, look no further than the RoadVista StripeMaster retroreflectometer. This rugged, field-portable instrument measures retroreflectivity of pavement markings per ASTM E1710 and EN 1436 30-meter geometry. Providing accurate measurements on wet (per ASTM E2176 and ASTM E2177) or dry surfaces, the lightweight StripeMaster has an RS-232C interface that allows data to be downloaded into any traffic inventory system. The instrument comes with wheels to make the measurement process a breeze. With the touch of a button, you can make quick and easy measurements. For added functionality, you can specify an optional external GPS and external printer.

The internal memory will store up to 10,000 measurements before downloading to a computer. The data transfer is simple with our datalogging software. The StripeMaster connects to any standard computer using an RS-232C interface. Our mapping software allows the user to plot the data on a clickable and printable map to quickly identify problem areas that need attention.

Microprocessor-controlled calibration, together with ease of use, has made the StripeMaster one of the most widely used instruments of its kind in the industry.

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