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Method and apparatus for the portable identification of material thickness and defects along uneven surfaces using spatially controlled heat application
Method and apparatus for the portable identification of material thickness and defects along uneven surfaces using spatially controlled heat application
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机译:使用空间控制的热施加来便携式识别沿不平坦表面的材料厚度和缺陷的方法和设备
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摘要
A method and apparatus for testing a material such as the water-wall tubes in boilers includes the use of a portable thermal line heater having radiation shields to control the amount of thermal radiation that reaches a thermal imager. A procedure corrects for variations in the initial temperature of the material being inspected. A method of calibrating the testing device to determine an equation relating thickness of the material to temperatures created by the thermal line heater uses empirical data derived from tests performed on test specimens for each material type, geometry, density, specific heat, speed at which the line heater is moved across the material and heat intensity.
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