System and method for metering impact load of FWD (falling weight deflectometer)

Abstract

The invention relates to the field of an FWD (falling weight deflectometer), and particularly provides a system and a method for metering impact load of the FWD. The system for metering the impact load of the FWD comprises a substrate, a bearing plate, pressure sensors, a data collecting device and a data processing device, wherein the bearing plate is stacked right above the substrate; the multiple pressure sensors are uniformly distributed between the upper surface of the substrate and the lower surface of the bearing plate; the data collecting device is connected with the pressure sensors;the data processing device is connected with the data collecting device through a data transmission line. The device for metering the impact load of the FWD is low in manufacture cost, simple in structure and capable of being recycled, moved randomly and moved to the scene for use, accuracy of values measured by the pressure sensors is guaranteed, and accordingly, the FWD can be accurately calibrated.

Description

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AI Technical Summary

Benefits of technology

This technology allows for precise measurement with fewer expensive components than current methods like weigh-inches or tires. By measuring the impact loads over many different areas simultaneously, it becomes easier to move around quickly without having to stop working altogether due to its simplicity design. Additionally, this system has several advantages such as being able to work continuously during operation while maintaining accuracy compared to traditional methodologies.

Problems solved by technology

Technological Problem addressed in this patents are how to efficiently calibrulate a type called FWD used during traffic monitoring without causing any errors caused by changes made over time such as wear out or damage. Current techniques involve static measurements taken under specific conditions like gravity loading, but they have limitations because these factors affect the amount of force needed to change the shape of the material being tested.

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