Serve For Real Test
Serve For Real Test
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| Place of Origin: | China mainland |
| Brand Name: | SRI |
| Certification: | ISO 9001 |
| Model Number: | JT-CFT03 |
| Minimum Order Quantity: | 1set |
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| Price: | 40,000-50000USD |
| Packaging Details: | Wooden case |
| Delivery Time: | 25-30 working days |
| Supply Ability: | 20sets/Month |
| Standards: | ASTM E670-09 | Functions: | Surface Friction Coefficient Test |
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Standards
ASTM E670-09, JTG-E60-2008, JT/T752-2009, JJG100-2010; JT/T778-2010
The Continuous friction tester (CFT) is used to measure the surface friction coefficient of highway or runway of airport.
Constructions
The whole system comprised the measuring unit, 3-wheel walking unit, road surface temperature sensor and non-contact environmental temperature sensor, specialized test software, and water-spray system and wheel-lift system can be optional equipped. The 3-wheel trailer is connected to the front tractor through a tow hook to quickly test the road friction coefficient.
Working principle
The included angle between CFT wheel and the driving direction is of 7.5°,
and when driving on a wet road at a certain speed, the lateral friction force
on the test wheel is compared with the load acting on the test wheel,
the ratio is called as the lateral force coefficient, and this method is called as the
deflection wheel trailer method.
Its advantage is it does not hinder the traffic during the measurement, and
can be continuously and quickly measured. High-grade highways often uses the CFT
to evaluate the anti-skid performance of the road surface.
Features & Advantages
High sturdy structure and innovative design make the JT-CFT03 can perform road friction coefficient detection under almost all road conditions
Wide application range, not only meet the road test standards of most countries, also meet the FAA Standard.
Multi-language option for test software, better meets the operation requirements of different countries and areas.
Touch screen operation of test interface
Real time display of parameters: walking speed, test distance, friction coefficient value, SFC conversion value, air temperature
road temperature; the graph of friction coefficient VS distance
powerful software functions(see software part)
Technical specifications
| Trailer size | L1553mm *W60mm*H570mm |
| Trailer connector height | 350 ±12 mm |
| Trailer running weight including mass but not supporting wheels | 254kg |
| Weight distribution | Left wheel: At the calibration height 761 ± 5N |
| Weight distribution | right wheel –At the calibration height 761 ± 5N |
| Test wheel adjustment Two-wheel adjustment: | Left and right adjustment 7.5°; single wheel adjustment: right wheel adjustment 15° |
| Rear wheel | 525N nominal load |
| Special test wheel for friction coefficient | ASTM 1551E |
| Distance test wheel | Standard tyre |
| Tire pressure |
Coefficient of friction test wheel 0.7 ± 0.035 kg/cm2, Distance test wheel: 2.1 ± 0.137 kg/cm2 |
| Traction speed | 0~100km/h |
| International standard airport runway test speed | 65km/h and 96km/h |
| China standard road inspection test speed | 50km/h |
| Operating Voltage | 9-36V DC (12V and 24V vehicle power supply) |
| Electronic components | Processor with Ethernet interface, connect to laptop or test computer |
| Friction coefficient test accuracy | At least 15m of measured distance, ± 0.01 |
| Distance measurement accuracy | ± 0.1% plus tyre abrasion |
| Temperature measurement | Road infrared temperature sensor*1; Air temperature sensor*1 |
| Temperature test accuracy | ± 0.5% |
| Sprinkler system (optional) | Automatic and manual |
| Processing software | Can directly output test software |
