The road surface roughness meter adopts ARM microcomputer processing and large-scale integrated circuit technology, which improves the integration of the whole machine, reduces many unnecessary connectors in the original instrument, thereby increasing the reliability of the system and making the various items of the entire system Performance is more stable.
The instrument contains a real-time clock, which can display the time and date, and automatically record. The display uses a liquid crystal display method, which reduces power consumption and makes the display clearer. The displacement sensor adopts high-precision displacement sensor, with higher accuracy, better stability and faster testing speed. The power supply uses 12V7.2AH colloid maintenance-free battery, which replaces the traditional battery.
In terms of machinery, on the premise of ensuring test accuracy, test accuracy and frame rigidity, the weight of the instrument is reduced as much as possible, making the transportation and loading and unloading of the instrument more convenient and flexible. Therefore, compared with the current three-meter ruler measurement and other similar measuring instruments, this instrument not only has the advantages of high measurement accuracy, fast speed, reliable data, and scientific evaluation, but also has simple operation, reliable work, and greatly reduces labor intensity and improves Work efficiency and economic benefits. It is suitable for the construction inspection, completion acceptance and road maintenance of roads such as highways, urban roads, squares, and airport runways, as well as the maintenance of roads. It can also provide reliable pavement data for teaching, design, and scientific research units. This instrument is re-listed as the standard measuring instrument in the national standard "Code for Construction and Acceptance of Asphalt Pavement" (GBJ02-86) and "Technical Specifications for Maintenance" (JTJ073-85) of the Ministry of Communications.