Portable nondestructive testing system for flashlight excitation heat waves

Abstract

The invention discloses a portable nondestructive testing system for flashlight excitation heat waves. The system comprises a high-power flashlight, an infrared imager, a data processing and displaying system, a touch screen displayer, a flashlight control unit and a flashlight power source. The portable nondestructive testing system has the advantages that the designed equipment structure is compact and portable, the infrared imager, the high-power flashlight, a data processing unit and the touch screen displayer are integrated in a portable detection module, the flashlight control unit and a power source supply unit are integrated in a power source control system module, and other external power sources are not needed during use; operators can hold a detection unit by one hand to generate heat waves on sample surfaces through high-energy pulse thermal excitation and test the heat waves; the equipment is operated and controlled by a touch screen, and a man-machine interface is simple and convenient.

Description

technical field [0001] The invention relates to a non-destructive testing system based on thermal wave imaging technology, especially the way of thermal excitation using a flash lamp, which can be used for the detection of structures and defects of various materials, including metals, non-metals and various composite materials, and belongs to infrared Non-destructive testing technology field. Background technique [0002] With the rapid development of new materials, new energy, high-speed railway, nuclear industry and aerospace industries, the demand for non-destructive testing of various materials is increasing, especially in the field of aerospace, where composite materials are used in fuselage, wings, Rocket casings have been widely used, and the use of composite materials has become one of the symbols of the advanced equipment in the modern aerospace field. The composite material structure usually adopts multi-layer fiber viscose or honeycomb sandwich structure, which h...

AI Technical Summary

Problems solved by technology

During testing, the operator needs to hold the flashlight and imaging unit to the surface of the specimen with both hands, and the computer control and acquisition part is usually a separate unit, and the independent flashlight power supply part is also very heavy, so it is extremely inconvenient to operate by a single person

In addition, the capacitor in the flash power supply needs to be powered by an external AC power supply, which is often limited by the detection conditions of the external field and cannot be used.

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