Automatic Falling Weight Deflectometer
Fast. Cost-effective. Accurate.
The SA100-1A falling weight deflectometer (FWD) is an automatic trailer-type system for non-destructive testing of road surface strength. The FWD measures dynamic deflection of the pavement surface and calculates the resulting rebound modulus. |
Features
|
Technical Specifications
Hammer weight | 450 kg |
Operating speed | 0 – 120 km/h |
Testing speed per point | 25 – 30 s |
Deflection type | Magnet electric speed sensor |
Number of deflection sensors | Up to 9 |
Deflection range | ±2500 um |
Deflection accuracy | 2% |
Deflection repeatability | 1% |
Loading force | 12 – 150 kN (can be extended to 250 kN) |
Loading pulse type | Half-sine |
Loading repeatability | 2% |
Loading resolution | 0.1 kN, 1 kPa |
Temp. range | -50 – 100℃ |
Temp. resolution | 0.1℃ |
Temp. accuracy | 0.50% |
DMI sensor (1 pc) type | Pulse coder |
GPS horizontal accuracy | ±2 m |
