Road Marking Paint and Machine Manufacturer
+86-15668659958
Please refer to the requirements of relevant standards such as GB/T 26377-2010 “Retroreflective Measuring Instruments”, GB/T 16311-2009 “Quality Requirements and Monitoring Methods for Road Traffic Markings”, and JJG (Transportation) 059-2004 “Retroreflective Measuring Instrument Verification Regulations” for the standard of retroreflective coefficient for traffic markings.
The top road retroreflective marking measuring instrument is a professional measuring instrument used to measure the reflective performance of road markings. The measured parameter is the reflection coefficient R ‘or specific brightness of the marking, in units of mcd · lx-1 · m-2. This instrument is easy to operate, reliable in measurement, and suitable for both laboratory environments and on-site measurements. It is a preferred instrument for measuring the retroreflective performance of road markings in production, quality supervision, engineering construction, and supervision units. Main functional characteristics and technical parameters
- 1.Product basis and standard 15910665564
This instrument is designed and developed in accordance with relevant international technical documents and specifications. Complies with the requirements of relevant standards published by the International Commission on Illumination (CIE) No. 72, ASTM D4061-94 in the United States, DIN6752067521 in Germany, GB/T 26377-2010 Retroreflective Measuring Instruments in China, GB/T 16311-2009 Quality Requirements and Monitoring Methods for Road Traffic Markings, and JJG (Transportation) 059-2004 Retroreflective Measuring Instrument Verification Regulations.
Product features
- 1.One time calibration of white and yellow standard coefficients, long-term use
- 2.Color touch screen display
- 3.With voice broadcasting function
- 4.Temperature and humidity display mode
- 5.Data storage function (built-in data storage card can be connected to the computer to export and store data)
- 6.Aluminum alloy host, rust proof
- 7.The host has a compact and exquisite appearance, making it easy to carry
Measurement principle
The geometric condition of the STT-301C retroreflective marking instrument is to simulate the scene where a car’s headlights illuminate the retroreflective material on the road surface during nighttime driving, and after reflection, it is observed by the driver inside the cab. The schematic diagram of its optical path is shown in the following figure.
The angle between the optical axis of the headlight and the normal (reference axis) of the road surface is called the incidence angle (β), which is specified as 88.76 °. The angle between the optical axis of the headlight and the backlight is called the observation angle (α), which is specified as 1.05 °. The light source and optical system are projected towards the marking line according to the incident angle β, and the size of the measured marking line is 200 X 95mm. The light reflected from the marking line is emitted at an observation angle α of 1.05 °, and is detected and collected inside a V (λ) filter. After processing, it is displayed on the measurement value display, which is the measured value of the backreflection coefficient R ‘.
main parameter
l The observation angle of the instrument is α=1.05 °, the incident angle is β=88.76 °, and the complementary angle is 1.24 °.
l The color temperature of the light source is 2856K ± 50K (CIEA light source)
l The detector is a silicon diode+V (λ) corrector, which meets the spectral visual efficiency V (λ) requirements of CIE standard photometric observers after being corrected by a filter.
l The measurement range of the reflection coefficient R ‘is 0-3000 mcd · lx-1 · m-2
l Battery continuous working time: ≈ 72 hours
l Data storage: 10000 test messages
l Screen: 4.5 “854×480 (touch screen)
l Computer connection method: TF storage card
l Charging method: 220VAC 50HZ; DC8.4V
l Power supply: Lithium ion (6600mAh)
l Protection level: IP54
l Operating temperature: -15 ° C~+50 ° C
l Storage temperature: -30 ° C~+85 ° C
l Operating humidity: 10~90%, no condensation
l Volume (length x width x height): 450mm x 132mm x 132mm
l Net weight: 4.35kg (main engine)
Our company is a professional manufacturer of road hot-melt coatings, road retroreflective measuring instruments, and road marking machines. If you are interested, please feel free to communicate with me via email at any time export@toproadtraffic.com.
