Overview
ZTT-301V inverse reflection markings measurement instrument is a professional measuring instrument of Tiandi Spark brand, used for the measurement of road markings reflective performance, the parameter is inverse reflection coefficient R ' (specific luminance), unit mcd · lx-1 · m-2. The instrument is easy to operate, reliable in magnitude, suitable for laboratory and field measurement, and is the preferred tool for the measurement of pavement marking line reverse reflection performance in production, mass supervision, engineering construction, supervision units, etc.
Features
1. Large capacity, long standby
2. LCD Color Touchscreen Display
3. With voice broadcast function
4. One-click calibrating, quick detection
5. Humidity environment at a glance
6. Data storage function (built-in Data storage card can be connected to the computer to export storage data)
7. Support testing under drying, humid and continuous rainfall conditions
8. Aluminum alloy main structure, beautiful and rust-proof
9. Dimensions of the host are small and exquisite, easy to carry
10. The weight of the host is light, only 4.30KG
Principle
The Geometry conditions of the ZTT-301V touch screen version of the marking line inverse reflection detector simulate the scene where the headlights illuminate the road surface inverse reflection marking line when the car is driving at night, and are observed by the driver after reflection. The incident angle β is 88.76 °, and the observation angle α is 1.05 °. The Illuminant and Optical inspection system project the marking line according to the incident angle. The size of the measured marking line is 200 X 95mm. The reflection ray of light is emitted to the detector equipped with a V (lambda) filter for collection according to the observation angle. After processing, the inverse reflection coefficient R 'Measured value is displayed.
Standards
International Commission on Illumination (CIE) No. 72, American ASTM D4061-94, German DIN67520, DIN67521, China GB/T 26377-2010 "Retroreflectometer", GB/T 16311-2009 "Road traffic marking mass requirements and monitoring methods", JJG (traffic) 059-2004 "Retroreflectometer verification regulations"
