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What Kind of Hot is It?

The discovery that accurate temperature measurements are many times difficult in electrical applications of thermography can be a hard pill to swallow.  Electrical apparatus are often made from metal that’s bare, so emissivity is low, and thus temperature measurements are unreliable.

The good news is that despite this fact, electrical anomalies can be relatively easy to [...]

Focus First

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 [...]

Thermodynamics 101: Thermal Diffusivity Part III

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 [...]

Themodynamics and Diffusivity 101: Part II

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 [...]

Auto Draft

We’re going to explore some principles of thermodynamics in three, smaller blog installments because, like the old riddle suggests, you eat an elephant one bite at a [...]

Mechanical IR Safety

There’s a lot written about electrical safety as it applies to infrared inspections.  The danger of electric shock and exposure to arc flash hazards must be considered when inspecting electrical apparatus with thermography. What isn’t discussed nearly as often are the hazards associated with mechanical infrared inspections, of which there are many.

Roller Bearing

How do You Get to Carnegie Hall?

The punch line to the old joke, “How do you get to Carnegie Hall?” is three simple words, “Practice, practice, practice.”  The same would hold true if there was a thermographic equivalent to Carnegie Hall. You’d get there with practice … lots of it!

Some folks who come to Level I infrared training, however, express that [...]

How To Test Surface Temperatures With A Thermal Imager

To watch this video, click on the Ti125:

Ti125 Thermal Imaging Made Easy

 

Are Extra IR Lenses Needed?

The choices in the infrared camera market extend beyond just camera features like resolution, Bluetooth capability and storage card size. These days the market of infrared camera accessories is a separate category in its own right.  Additional lenses are among the most popular choices for addition to your basic thermal imaging camera platform, but does [...]

The “Auto” Range Feature: Best Friend or Worst Enemy?

One of the most widely used features added to cameras in recent years is the “auto” button or “auto range” setting.  In “auto mode,” or with the touch of the “auto button,” your imager will automatically adjust the level and span setting to account for the warmest and coolest items in the field of view [...]