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One of the easiest, and often safest, types of electrical apparatus to inspect are oil-filled transformer cooling [...]
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If you’ve had Level I Thermographic Applications training course you most likely heard the mantra of “Focus First!” from your instructor, and with good reason! Of all of the camera settings that can be adjusted by the camera operator, focus is by far the most important. Focus is essential to both image quality and temperature [...] This time we’re finishing up our discussion of thermal diffusivity before moving on to further discussion of thermodynamics. Hopefully taking these topics a step at a time is doing its job and will allow you to absorb the knowledge more easily, and hold onto it longer. In The Snell Group’s Level I course, we see several [...] We’re partly through our discussion of thermal diffusivity in our series on basic thermodynamics for the field thermographer. It is not our intent to have the reader become an expert in heat transfer theory. But it is important to understand the variables that effect thermal diffusivity and how this concept impacts the thermal world we [...] Whether it’s high rise office buildings, hospitals, or an industrial facility, the approaches to accomplishing an infrared electrical scan vary as much as the locations. One universal thread throughout these inspections is the manner in which most electrical maintenance folks expose panels for inspection.
Most industrial grade panels have a two part cover but these configurations [...] To watch this video, click on the Ti125: Ti125 Thermal Imaging Made Easy
I’ve been working on a project this past week with a couple of young people. I’m impressed with two things. First, they have more energy than I have. Second, I have more experience than they have. While energy is great, relying on experience often means I know how to do things “smarter,” using less energy. [...] For young children and pets, the first look in a mirror can be very confusing! They may be asking themselves. “Is that real or…?” Most thermographers share a similar exasperation the first time they see a thermal reflection, most commonly from a bright piece of metal. Many go on to understand that reflections are not [...] For the past several weeks, we’ve been reviewing heat transfer. Thermographers must understand the basics if they are to successfully interpret their images. Over the next two weeks, we’ll wrap up the review with a discussion of radiation. Electromagnetic radiation is not only a powerful mode of heat transfer, it is also the way energy moves [...] As we continue the discussion about convective heat transfer, it is useful to define two types of convection, natural and forced. When quantities of fluids are moved in either way, we also use the term “bulk energy transfer” because it is really the movement of the fluid itself, and the energy inherent in it, that [...] |
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