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Falling Weight Deflectometer | FWD-Light

Supplier: Bestech Australia

The FWD-Light from Bestech Australia has excellent portability and enables simple and quick measurement of coefficient of subgrade reaction.

Price Guide: POA

Two measurement methods are offered with 2-wire digital line measurement system as well as wireless measurement system.

By measuring the test work conducted by experts in the dodecahedron to reduce test time, in order to assess the stiffness of the ground, the ground reaction force coefficient K30 and one indicator of equivalent value to calculate accurately.

In this system, weight of main body of Small FWD is made to fall freely, and shock load and displacement by the falling are measured by load cell and acceleration transducer. Displacement is obtained by integrating the acceleration twice. Measurement of external displacement of 4 points at maximum is available by combining external displacement sensor KFDS-1B.

FWD (Falling Weight Deflectometer) from Bestech Australia is used for estimating construction of pavement or rigidity of sub-grade. Also, plate loading test is used for estimating characteristics of sub-grade. However, these methods require much time and works for their preparation, data acquisition and analysis.

TML small FWD System "FWD-Light" features excellent portability and enables simple and quick measurement of coefficient of sub-grade reaction which is called K value and modulus of sub-grade elasticity which is called E value.

FWD-Light consists of main body KFD-100A and indicator TC-351F. The main body includes load cell and acceleration transducer whose measuring ranges are 20kN of load and 2.5mm of displacement at maximum. Values of maximum load and displacement, and analysis results of K value and E value are indicated on the indicator. Each analysis result can be stored in memory card and printed by exclusive printer. Data stored in memory card can be transferred to a personal computer by directly connecting the card or via the indicator.

Measurement and processing software TC-7100 is available as an optional item for indicating waveforms of load, acceleration, velocity and displacement, O-P time and time product using personal computer.

Measurement/Analysis software (TC-7100) is required for measurement system with personal computer. In this system, data indicated on the indicator are transferred to the computer through the indicator without modification. Personal computer displays waveforms of load and displacement and also processes each analysis.