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Laser calibration device for falling weight deflectometer

A drop weight deflection meter and calibration device technology, applied in the direction of measuring devices, instruments, etc., to achieve the effect of high-precision non-destructive testing of road surface deflection

Active Publication Date: 2014-07-30
珠海神箭路通科技有限公司
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Problems solved by technology

[0005] The present invention aims to solve the problems described above

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  • Laser calibration device for falling weight deflectometer
  • Laser calibration device for falling weight deflectometer
  • Laser calibration device for falling weight deflectometer

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] The invention provides a laser calibration device for a drop weight deflection meter, which realizes high-precision non-destructive detection of road surface deflection by adopting a method of combining a mass inertia system with a laser sensing system. The inertial mass system system is used to obtain the road surface sinking distance, and the sensor system is used to measure the road surface sinking distance obtained by the inertial mass system system.

[0020] The laser sensing system includes a laser sensor and a laser sensor housing. The mass-inertial system includes a mass-inertial sy...

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Abstract

The invention provides a laser calibration device for falling weight deflectometer. The calibration device is characterized by comprising a sensor system and an inertial mass system; and the inertial mass system is used to obtain the pavement subsidence distance, and the sensor system is used for measuring the pavement subsidence distance obtained by the inertia mass system. the inertial mass system and the laser sensor system are combined to realize high-precision pavement deflection nondestructive test.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing of roadbed pavement strength, in particular to a laser calibration device for a drop weight deflection meter. Background technique [0002] The research and development of pavement non-destructive testing technology has been paid more and more attention at home and abroad. Deflection is the most important evaluation index of pavement structural strength, and its detection equipment and analysis technology have developed rapidly. [0003] Since the 1980s, the Falling Weight Deflectometer (FWD), as a non-destructive testing and evaluation equipment for subgrade pavement deflection, has been widely used at home and abroad. It has the advantages of no damage, fast measurement speed, high precision, etc., and it simulates the driving load well, and the test result is the deflection basin data, so it is widely used in the world. Its scope of application is mainly in road maintenance ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 彭京武
Owner 珠海神箭路通科技有限公司
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