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Infrared Technologies Measure the Effects of Thermal Materials
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A study published in the Measurement Science and Technology Journal showed how researchers are working to develop an infrared IR method to measure and analyze the resistance of fire composite materials and its thermal properties. The advances could lead to applications in aerospace engineering technologies or other engineering applications in which fire safety and the composite materials used need to be able to withstand extreme temperatures.
One of the drawbacks associated with attempts to measure the impact of fire on materials is because the flame’s temperatures exceed 1000 degrees C. The temperature of the flame negates the actual temperatures of the materials being tested. The concentration of the gases, CO2, H2O, and others, make it challenging to capture clear images of the composite material being subjected to the fire. To solve these issues, researchers used a measurement utilizing the IR spectrum. A camera that is specially equipped with IR devices has been found to utilize the proper spectral settings so researchers could determine the heat measurement while effectively discounting the effects of the flames and the gases.
Researchers discovered that the IR camera could effectively analyze the thermal properties and resistance of the composite materials. This method impacts aerospace engineering technology where knowing the effects fire will have on carbon fiber and fiberglass and other materials such as those used in airplanes is critical. Knowing the ability of composite materials to resist the effects of fire damage could also be crucial knowledge in the construction of housing projects, rail and land transportation vehicles.
One of the main benefits of using the IR camera technology is that the tests can be run without researchers having any direct contact with the composite materials. The objective of the testing is to precisely measure the real temperatures of the entire surface of the sample. The IR technologies can also capture and measure the temperatures even in the presence of “dirty” flames, those that include other sub-products that are a result of the fire and heat emitted during the testing process.
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