An inductance detection method for multi-section and time-sharing measurement of blade profile

Abstract

The invention provides a blade profile inductive detection method with a multi-section sharing measurement function. A special electric measuring device consists of an industrial computer (1), an inductive transducer (2), inductive detection equipment (3), a section positioning circuit module (4) and a blade and guide rail link mechanism (5), wherein the industrial computer (1), the inductive detection equipment (3), the inductive transducer (2), the blade and guide rail link mechanism (5), detected blades and the section positioning circuit module (4) are sequentially connected in series, and the industrial computer (1) is connected with the section positioning circuit module (4). The detection method comprises the following steps in sequence: numbering the sections to be detected of the detected blades and inputting the numbers into the industrial computer (1); reading out the numbers of the current sections and achieving data computation; measuring the relative displacement value, calculating the thickness and the bending parameter of the point and saving data. The blade profile inductive detection method is simple to implement, and has strong maneuverability and favorable technical effects, as well as higher predictable economic values and social values.

Description

technical field [0001] The invention relates to a detection method of blade profiles, and in particular provides an inductance detection method for multi-section and time-sharing measurement of blade profiles. Background technique [0002] With the development of engine research and development, the number of mass-produced engines is increasing day by day. Each engine has dozens of high-pressure working blades and high-pressure rectifying blades. Due to the limitation of the structure of the inductance sensor, the traditional inductance meter can only measure a few points on the limited section of the blade for the blade with small size and large axial curvature, and cannot measure all the sections of the blade, and can only The measurement of blades with relatively flat axial variation of the measured blade surface cannot meet the requirements for the measurement of blades with large axial curvature of the new engine. [0003] People are eager to obtain an inductance detec...

AI Technical Summary

Problems solved by technology

[0002] With the development of engine research and development, the number of mass-produced engines is increasing day by day. Each engine has dozens of high-pressure working blades and high-pressure rectifying blades. Due to the limitation of the structure of the inductance sensor, the traditional inductance meter can only measure a few points on the limited section of the blade for the blade with small size and large axial curvature, and cannot measure all the sections of the blade, and can only Measuring the relatively straight type of axial variation of the measured blade surface, the measurement of blades with large axial curvature of the new engine can no longer meet the requirements

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