红外差热机理分析及沥青路面透水性红外检测仪的研发

为了能通过识别沥青路面在雨天饱水后的表面温度差异性对其透水性进行评价,首先对路表温度场与透水性的相关性进行分析,然后基于高速红外调制探头等硬件以及红外路表测温、信号转换和色谱绘制等软件系统,开发了一种该领域内首台连续测速达到100 km/h的沥青路面透水性红外差热检测仪.研究结果表明,通过用红外测温技术检测的路面温度差...

Analysis of Infrared Differential Thermal Mechanism and Development of Infrared Detector for Asphalt Pavement Permeability

An infrared differential thermal detector for asphalt pavement permeability is developed. The detector is based on a high speed infrared detector system and a software system including infrared surface temperature measurement, signal conversion, chromatography, etc. It is the first infrared differential thermal detector which can continuously operate at a speed of 100 km/h in the field of asphalt pavement permeability measurement. The research result shows that it is feasible to evaluate the permeability of asphalt pavement by measuring the surface temperature difference of asphalt pavement with the infrared temperature measurement technology. Compared with the traditional fixed-point permeability detector, its detection effectiveness is improved by a factor of 50 and its correlation coefficient is up to 0.8985. Because the system can share the pavement permeability information with an intelligent fog seal asphalt distributor, it can form a complete asphalt pavement permeability treatment technology which meets the requirements of different highways in China.