Integrated pulse eddy current sensing infrared thermal imaging detection apparatus and detection method thereof

Abstract

The invention provides an integrated pulse eddy current sensing infrared thermal imaging detection apparatus and a detection method thereof. The integrated pulse eddy current sensing infrared thermal imaging detection apparatus comprises an electromagnetic induction actuator for generating an alternating magnetic field, an infrared thermal imager and an embedded industrial control plate, wherein one end of the actuator coil of the electromagnetic induction actuator is connected to the embedded industrial control plate, the other end is aligned with the crack defect on a specimen, the infrared thermal imager is connected to the embedded industrial control plate, and the infrared thermal imager collects the infrared image of the specimen and transmits the image to the embedded industrial control plate. According to the present invention, the pulse eddy current sensor is used as the excitation source, and the excitation of the infrared thermal imaging detection and the collection device are integrated, such that the structure design is compact and reasonable, the single-hand operation can be achieved, and the field practicability is strong; the synchronization of the infrared image acquisition and the actuator excitation is achieved by the industrial control tablet PC, such that the operation of the apparatus is simple and convenient; and the infrared detection method provided by the embodiments can achieve the simple and rapid detection of various defects.

Description

technical field [0001] The invention relates to the field of non-destructive testing of conductive materials and test pieces thereof, in particular to an integrated pulsed eddy current induction excitation thermal imaging detection device and a detection method thereof. Background technique [0002] Conductive materials such as metals are the main construction materials in the fields of modern mechanical structures, engineering construction, and transportation industries. Manufacturing automotive half shaft parts, aero engine blades, suspension bridge slings, and railway transportation rails, etc. The wide application of conductive materials such as metals will inevitably lead to corresponding health conditions under the influence of complex environments. For example, due to the influence of various uncertain factors such as climate, the inside or outside of parts and materials will be bent, twisted, and compressed due to external effects. , elongation, wear, fracture and o...

AI Technical Summary

Problems solved by technology

At present, there are two types of infrared thermal imaging detectors on the market: one is a powerful infrared image analysis system composed of an infrared thermal imaging camera and a computer with high measurement accuracy to perform infrared thermal image detection and analysis. It is inconvenient to operate on site; the other is a handheld thermal imaging camera, but its functions often cannot meet the needs of customers.

The above two systems often need to be reconfigured with a thermal excitation source. Therefore, the existing infrared imaging detection system has defects in the actual application process, and it is difficult to meet the application requirements well.

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