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Detection method for pipeline defects, sensor and packaging method of sensor

A detection method and sensor technology, applied in the detection field, can solve problems such as ineffective detection of pipeline defects

Inactive Publication Date: 2019-07-23
LASER RES INST OF SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application aims to provide a detection method for pipeline defects, a sensor and a packaging method for sensors, so as to solve the technical problem that pipeline defects cannot be effectively detected

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0045] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0046] It should be noted that like nume...

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Abstract

The invention provides a detection method for pipeline defects, a sensor and a packaging method of the sensor. The detection method includes the steps that a first sensor and a second sensor are arranged at corresponding positions of a pipeline in the preset direction, and the area, located between the first sensor and the second sensor, of the pipeline is an effective detection area; an excitation signal is provided for the first sensor so that the first sensor can generate an ultrasonic signal, and the ultrasonic signal can be spread in the preset direction; whether the second sensor receives the ultrasonic signal or not is detected, and a detection result is obtained; and whether the defects exist in the effective detection area or not is determined according to the detection result. Bymeans of the detection method, ultrasonic waves are used for detecting the defects, and the pipeline defects can be effectively detected.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection method for pipeline defects, a sensor and a packaging method for the sensor. Background technique [0002] As a means of transportation, the working environment of the pipeline is relatively harsh, and it is prone to corrosion, fatigue damage or potential defects inside the pipeline to expand into cracks. The leakage of toxic and harmful gases and gas pipelines will cause huge damage to human normal life and life and property safety. threat. Therefore, detection of pipe wall thinning, defects and cracks is important. [0003] At present, the commonly used defect detection methods include eddy current testing and magnetic flux leakage testing. Among the commonly used testing methods, such as eddy current testing, the coil does not need to be in direct contact with the object to be tested, which is not suitable for parts with complex shapes, and the test results are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/06G01N29/04G01N29/265
CPCF17D5/06G01N29/04G01N29/265G01N2291/023G01N2291/269
Inventor 陈建伟赵扬马健宋江峰郭锐刘帅白雪南钢洋张振振
Owner LASER RES INST OF SHANDONG ACAD OF SCI
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