Infrared Theory 101
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Infrared Theory 101 |
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Theory of Thermography |
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The Theory of infrared radiation and the related techniques of thermography are new to many who would like to make use of Infrared Cameras and Non-contact Thermometers. The electromagnetic spectrum is divided arbitrarily into a number of wavelength regions called "bands", distinguished by the methods utilized to produce and detect the radiation. There is no fundamental difference between radiation in the different bands of the electromagnetic spectrum. |
They are all governed by the same laws and the only differences are those due to differences in wavelength.
Infrared Thermography makes use of the infrared spectral band. At the short-wavelength end of the boundary lies the limit of visual perception, in the deep red. At the long-wavelength end it merges with the microwave radio wavelengths, in the millimeter range. |
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| Light at frequencies below red is called infrared. The human eye cannot see it, but infrared detectors and imaging devices can. All objects emit infrared energy at ordinary temperatures. The hotter the object, the more infrared energy it emits. | The human eye is capable of seeing small range of frequencies of the Electromagnetic Spectrum, visible light. Objects emit visible light only at very high temperatures. | |||
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Providing
Thermal Imaging Solutions to Business and Industry |
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