A method for calibrating phased array ultrasonic testing parameters of flue gas turbine blades

By establishing a test block system to calibrate the phased array ultrasonic testing parameters of the flue gas turbine blades, the problem of instability of testing parameters was solved, and the stability and reliability of the testing results were improved.

CN122306958APending Publication Date: 2026-06-30SHENZHEN ZHONGCHANG DETECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN ZHONGCHANG DETECTION TECH CO LTD
Filing Date
2026-05-20
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, the phased array ultrasonic testing of flue gas turbine blades suffers from insufficient stability, uniformity and adaptability of testing parameters due to the complex structure of the workpiece and significant differences in the testing location, which affects the consistency and reliability of the testing results.

Method used

By establishing a test block system, including standard test blocks, comparison test blocks, and simulation test blocks, basic calibration, sensitivity calibration, and compensation parameter calibration are carried out to gradually form a set of target detection process parameters, ensuring that the parameters match the detection object.

Benefits of technology

It improves the stability, reliability and consistency of test results, reduces test deviations caused by insufficient parameter matching, and provides a more reliable basis for process parameters.

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Abstract

This invention relates to the field of detection technology, specifically to a method for calibrating phased array ultrasonic testing parameters for flue gas turbine motorized blades. Addressing the application scenario where the blade body, root, and their interface regions of flue gas turbine motorized blades have complex structures and significant differences in testing locations, this method establishes a test block system adapted to the specific testing object. It then sequentially completes basic calibration, sensitivity and compensation parameter calibration, and verification correction. This ensures that the formation process of the testing process parameters has a clear hierarchy, specificity, and closed-loop nature, thereby enabling the final set of target testing process parameters to match the actual structural characteristics of the flue gas turbine motorized blades, the acoustic beam entry conditions, and subsequent testing requirements.
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