Thermal actuation device for infrared thermal imaging non-destructive testing of concrete structures

Abstract

The invention discloses a thermal excitation device for infrared thermal imaging nondestructive detection on a concrete structure. The device comprises an infrared radiation device, a boiler cradle, a boiler cradle rotation device and a boiler cradle lifting device, wherein the infrared radiation device comprises a radiation device array consisting of a plurality of ceramic radiation devices and a temperature control device electrically connected with the radiation device array; the radiation device array is fixed on the boiler cradle which is made of smooth stainless steel, and is connected with a moving component of the boiler cradle lifting device by the boiler cradle rotation device. According to the invention, a thermal source used by the technique of infrared imaging nondestructive detection on concrete not only is small in spatial gradient, high in time gradient, high in heating efficiency, and high in heating temperature controllable precision, but also can move conveniently and can be regulated in height and angle.

Description

technical field [0001] The invention relates to a thermal excitation device for infrared thermal imaging non-destructive detection of internal defects of concrete. Background technique [0002] Seeking a non-destructive, rapid, low-cost, and large-scale concrete survey method is a matter of great concern to the civil engineering field, and it has very practical significance. Infrared imaging detection technology is introduced into the field of civil engineering under such circumstances. Research on the application of infrared imaging technology first appeared in the United States in the 1960s. In the late 1970s, some scholars have applied infrared imaging technology to diagnose heat loss of buildings, roof water seepage, wall defects, and find subsurface defects of road surfaces. This technology started relatively late in our country. In the early 1990s, Chinese scholars combined infrared imaging diagnosis technology with civil engineering, and carried out research on buil...

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Problems solved by technology

[0016] The purpose of the present invention is to provide a thermal excitation device for infrared thermal imaging non-destructive testing of concrete structures to solve the problem that the heat source used in the non-destructive testing technology of infrared thermal imaging of concrete not only has small spatial gradient, large time gradient, high heating efficiency, and fine controllable heating temperature. , and can be easily moved, height and angle can be adjusted and other technical issues

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