Three-dimensional space position continuous change combined measurement device and measurement method

Abstract

The invention discloses a three-dimensional space position continuous change combined measurement device and a measurement method. The device comprises a positioning sensor, a three-way tilt angle sensor, a continuous deformation measuring tube, a fixing module, a strain sensing optical fiber and a data collecting and processing module, and the positioning sensor, the three-way tilt angle sensor and the continuous deformation measuring tube are directly or indirectly fixed to a measured target through the fixing module. The strain sensing optical fiber is arranged on the continuous deformation measuring tube, and the data acquisition and processing module is used for receiving data acquired by the positioning sensor, the three-way tilt angle sensor and the continuous deformation measuring tube and calculating and determining a position continuous change value of a measured target in a three-dimensional space. According to the invention, continuous change measurement of the three-dimensional space position of the target can be realized, the full length of the measured target can be covered, three kinds of displacement components of translation, rotation and deformation can be completely acquired, the measurement result information is complete, the monitoring blind area is avoided, and the structure safety monitoring level is improved.

Description

technical field [0001] The invention belongs to the technical field of structural safety monitoring, and more specifically relates to a three-dimensional space position continuous change combination measuring device and a measuring method. Background technique [0002] During the long-term service of long-distance engineering structures such as bridges, pipelines, and tunnels, due to various factors such as material aging, fatigue loading, foundation settlement, support displacement, and eccentric loads, the structure gradually develops complex spatial position changes. Without timely monitoring, there will be serious consequences such as bridge beam falling, pipeline cracking, and tunnel collapse. However, the current monitoring methods for the three-dimensional space position change of the structure are still insufficient, mainly reflected in: first, the coverage capacity is insufficient, and the measured target cannot be continuously covered, and only a single point can b...

AI Technical Summary

Problems solved by technology

However, the current monitoring methods for the three-dimensional space position change of the structure are still insufficient, mainly reflected in: first, the coverage capacity is insufficient, and the measured target cannot be continuously covered, and only a single point can be measured; second, the parameters are missing, and the three-dimensional space of the structure The position change is composed of three types of displacement parameters, which are overall translation, overall rotation, and continuous deformation. However, the current technical means only measure one or two parameters one-sidedly, and cannot achieve full coverage of the three types of parameters.

The lack of spatial position leads to monitoring blind spots, and the lack of displacement parameters leads to monitoring risks. Therefore, it is urgent to develop a comprehensive and safe new structural safety monitoring technology to obtain the continuous change of the three-dimensional spatial position of the target structure and increase the level of structural safety assurance.

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