A bending sensor structure and method for pipeline deformation detection

Abstract

The invention relates to a bending sensor and especially relates to a bending sensor structure and method used for pipeline deformation detection. The structure at least comprises four bending sensorson a flexible film. A first bending sensor is parallel to one edge of the flexible film. A second bending sensor is vertical to the first bending sensor. The first bending sensor and the second bending sensor form a T shape. A third bending sensor and a fourth bending sensor are fixed to two right angles of the T shape. Output ends of the first bending sensor, the second bending sensor, the thirdbending sensor and the fourth bending sensor are electrically connected to an interface. The invention provides the bending sensor structure and method used for pipeline deformation detection, whichhas the advantages of a simple structure, convenient monitoring, and long-distance, continuous and real-time online monitoring of pipeline deformation.

Description

technical field [0001] The invention relates to a bend sensor, in particular to a bend sensor structure and method for pipeline deformation detection. Background technique [0002] With the rapid development of our national economy, the demand for energy is becoming more and more urgent. As an important energy source, oil and gas resources play a vital role in production and life. Among the many transportation methods, pipeline transportation has high reliability and low transportation cost, and has played an increasingly important role in the transportation of petroleum resources, and has become the main transportation channel of petroleum. However, with the continuous increase of oil pipelines in our country and the extension of oil pipelines, the accidents of oil pipelines have also increased. Therefore, effective measures must be taken to prevent and reduce accidents before pipeline failure. Excessive deformation is one of the forms of pipeline failure, so monitoring t...

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Problems solved by technology

[0003] The traditional monitoring method of pipeline deformation requires manual monitoring of the pipeline on a regular basis. Although this method is easy to implement, it is difficult for these technologies to process the collected signals, and it is easily affected by the outside world. The most important thing is that it cannot be carried out Real-time monitoring, it is difficult to reflect the actual deformation state of the pipeline

[0004] In recent years, the deformation of the pipeline should be monitored by optical fiber, which can measure long-distance, continuous, and real-time online strain, and has become a new method of pipeline health monitoring, but its evaluation ability is relatively poor, and the cost of optical fiber is also relatively high. Suitable for monitoring long-distance pipelines

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