Glossary |
Terms that are on use on this site.
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| There are 6 entries in the glossary. |
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| Electromagnetic Radiation | These waves travel at the speed of light (approximately 3 x 108 m/s), and can be characterized by their wavelength. |
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| Electromagnetic Spectrum | The electromagnetic spectrum describes all the possible electromagnetic radiation in the universe. Electromagnetic radiation consists of particles of energy that move through space in a wave. The distance between wave peaks is called the wavelength and is used to describe the different forms of electromagnetic radiation. The spectrum includes gamma, xray, ultraviolet, visible, Infrared, microwaves and radio waves. Fundamentally, everything from the light that we see to the xrays the doctor uses to the microwaves that cook our food are the same electromagnetic energy with a different wave length. For example in the infrared region as an object gets hotter its wavelength gets shorter. If the object is hot enough it will begin to emit energy in the neighboring visible spectrum. This is why light bulbs light-up and hot molten metal glows brightly. |
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| Emittance | The ratio of the energy emitted by an object to the energy that a ‘perfect’ emitter (blackbody) would emit at the same temperature. Related to absorptance through the assumptions in Kirchoff’s Law. See Conservation of Energy. |
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| Error Analysis (Uncertainty Analysis) | A method by which the uncertainty in a measurement is quantified, to give an indication of ‘how good’ a measurement is. |
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| ESA | European Space Agency |
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| EVA | Extravehicular activity; outside the spacecraft; activity in space conducted by suited astronauts. This is also known as a spacewalk. |
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Glossary V2.0 |
Thermal Camera in the world. Above are actual thermal images taken with the RAZ-IR We have more information, videos, links and contact information with an emphasis on electrical audits and monitoring. 
