Solid rocket engine inner cavity surface image acquisition device and method

Abstract

The invention relates to the field of complex curved surface inner cavity surface image acquisition, and discloses a solid rocket engine inner cavity surface image acquisition device and method. The image acquisition device comprises a line-scan digital camera, a rotary connecting mechanism, a steering engine, a base and a servo motor, wherein the steering engine controls rotation of a lens of the line-scan digital camera by means of the rotary connecting mechanism, the servo motor is arranged outside a solid rocket engine and drives the steering engine to move in an axis direction of an inner cavity of the solid rocket engine, and then the line-scan digital camera is driven to move by means of the rotary connecting mechanism. According to the solid rocket engine inner cavity surface image acquisition method, full-area and missing-free image acquisition can be performed on the surface of the inner cavity of a shell of the solid rocket engine, the motion logic of the image acquisition device is simplified, and the image acquisition efficiency is improved.

Description

technical field [0001] The invention relates to the field of image acquisition of the inner cavity surface of complex curved surfaces, in particular to an image acquisition device and method for the inner cavity surface of a solid rocket motor based on a line array camera. Background technique [0002] As the power plant of missiles or aerospace vehicles, solid rocket motors have specific requirements for the structure of heat insulation layer-lining layer-grain column on the inner wall of the engine casing. There are wrinkles between the heat insulation layer and the inner wall of the engine casing, or there is incompleteness of the heat insulation layer, or there are impurities in the inner wall of the engine casing, resulting in insecure bonding between the lining layer, the heat insulation layer, and the grain, and detachment. The sticking phenomenon will affect the integrity and overall mechanical properties of the heat insulation layer-liner-grain structure, so that wh...

AI Technical Summary

Problems solved by technology

[0004] In summary, the existing manual detection methods cannot meet the high accuracy and efficiency requirements for the detection of debris or linings on the inner cavity of solid rocket motor shells, and new detection methods for the integrity of debris or linings in the inner cavity of solid rocket motors should be explored. It is necessary to design a new detection device

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