Application: widely applied in construction inspection and road maintenance acceptance, and providing reliable analytical pavement data for teaching, design and research institutes. Specification: 1. Benchmark measuring length: 3m 2. Error: 1% 3. Environment temperature shall be between -10℃ and +40℃ 4. Measurement: 4061×800×600mm 5. Elongation: 4061mm compression: 2450mm 6. Apparatus weight:235kg 7. Controller weight: 6kg Features: advanced micro-processing systems and large-scale integrated circuit technology are adopted in the apparatus, continuous measurement, automatic calculation, display and print standard deviation of pavement roughness; with high accuracy and speed while significantly reducing the labor intensity and improve working efficiency.
