Response-Type Automatic Pavement Roughness Evaluation System The roughness instrument is a computer -based pavement flat -level data collection and analysis system. It is a response detection class. The non -contact detection principle detects the dynamic response of the vehicle's vertical surface of the pavement surface (unable to rectangle), and through mathematics The model will be calculated as a variety of roughness indicators. This instrument is equipped with speed and distance detection device, and the distance/speed detector is installed on the rear wheel of the detection vehicle. Under the condition of normal speed, the existing pavement (including roads and airport runways) can be used. acceptance. When detecting the roughness, no mechanical modification of the detection vehicle is required. The roughness indicators measured by this detector are in line with the national pavement acceptance and maintenance standard specifications (highway roads on-site test regulations: JTJ059-95, highway engineering quality inspection and assessment standard: JTJ071-98). This instrument is mainly used for: 1. Road pavement management system or airport runway pavement flat test and evaluation 2. Acceptance of road or airport runway road surface construction quality The main characteristics of the bumpy accumulation of the flattera is: intuitive and simple operation, no mechanical modification, reliable operation, good data processing and output function during installation, which can be measured and processed with all kinds of flat flats with any road length. Degree index [International roughness Index (IRI), roughness standard deviation (s), bumpy cumulative value (VBI), driving quality index (RQI), etc.] can be obtained The roughness indicator can directly enter the pavement management system (CPMS). The data collection and data processing of this detector are completed by a portable computer (laptop). The roughness index and various flat degree curves can be printed directly on the spot without any post -processing, and the software is complete. The power supply of this detector is taken to the 12V power supply or laptop power supply of the vehicle dot socket, without any external power supply. The detection performance of bumpy cumulative flatterations is ahead of similar products around of world. Instrument configuration (The basic offer of the detector only includes only the necessary configuration) 1. The tester box (one, necessary) The inspection instrument box (also known as the detection box) is equipped with a detection system hardware. 2. Notebook computer (one, optional) The laptop can be provided by the company, or it can be provided by the user. It needs to be explained when ordering. The laptop must be equipped with Windows 98 or updated versions and Chinese platform software. 3. Detection system software (one set) 4. distance/speed detector (one set, necessary) The distance/speed detector includes sensors, supporting electronic devices and software and mechanical components. 5. Portable printer (one, optional) Portable printer can be provided by the company or provided by users. It needs to be explained when ordering. 6. Data transmission and power cable (one set, necessary) 7. Instruction manual (one, necessary) 8. Power inverter (one, optional) This power inverter can convert DC 12V power supply to AC power supply, providing external power for laptop and portable printer. Both laptop and portable printer have internal power supply. It can last for about 2 hours during normal operation. There is no need for external power supply. It is only provided by the external power supply without electricity. If the wild is required, the power supply inverter can be used to convert the 12V DC voltage in the inner cigarette lighter into the AC voltage as an external power supply. The power inverter can be provided by the company or provided by the user. It needs to be explained when ordering. 9. Portable box (two, necessary) Portable boxes can be loaded into all sensors and electronic accessories and cables for easy carry.
Technical Parameters 1. Testable roughness indicator: International roughness Index (IRI) roughness standard deviation (s) Bumping cumulative value (VBI) Driving Quality Index (RQI) 2. Output results: Various roughness indicators (segments of the entire segment and any length) Various roughness index curves and original data Use an automatic detection device to measure the speed and distance 3. Operation characteristics: Detection speed: 20 km/h - 100 km/h Sampling spacing:> 6 cm Calculate the length of the section: any length of 5m or more Number of operators (including drivers): 1-2 people Operating environmental temperature: -30 ºC to 60 ºC System power supply: 12V DC power supply on the car cigarette socket in the car during detection On -site output: can directly analyze the data on the spot and print the results 4. Performance indicators: Related to reference results (reference level instrument): related coefficient R2> 0.95 Detection Vertical vibration detection range: ± 5 g Follow detection resolution: <0.1M 5. Size and weight (excluding test car self -weight): Box size: 500 mm × 350 mm × 150 mm Gross weight: 8 kg
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