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Adjusting Level & Span Manually

Last week we discussed how to adjust level and span automatically and when that feature is best used. While using AUTO can be very convenient in many situations, you’ll quickly find times when MANUAL adjustment is essential, either to getting the best image or understanding what you are seeing.

Use AUTO adjust to get “in […]

Adjusting Level & Span Automatically

I’m all for using the AUTO adjust feature found on most thermal imagers. That said, it does not mean I can turn my brain off! Many new thermographers believe they can just put their system on AUTO and life will be good. Not true.

AUTO adjusts the span of the image to accommodate all three […]

What Palette to Use?

The image palettes we have available to us are remarkable. They’ve come so far since I first got into this business in 1983. We can now also easily change the palette in the software. Wow!

The Fluke AMBER palette with red and blue saturation indicators is a nearly perfect palette to use, especially in the […]

Image Fusion

When Fluke IR-fusion® was first launched, I wondered whether or not it would be perceived as just another marketing gimmick, and if not, how well it would be used. Time has proven that few find it gimmicky and most use it very well.

In the field I nearly always use the Full Infrared setting (left) for […]

Radiometric Temperatures

We’ve spent the past several weeks discussing heat transfer. Radiation is a special mode of transfer because that is the mode by which energy is transferred from surfaces to our imagers.

All of what we see in the thermal image is nearly always based on the amount of radiation emitted from or reflected by the surface. […]

Heat Transfer by Radiation Part 2

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 […]

“h” or the Convective Heat Transfer Coefficient

When heat transfer occurs in fluids—defined simply as non-solids—the rate and total transfer are governed by several factors, two of which are easily known: temperature difference and area. More challenging to define precisely is “h” or the Convective Heat Transfer Coefficient. This all-important variable is the amalgamation of a number of influences on heat transfer […]

Learning From Each Other

One of my Thermal Resolutions for 2011 was as follows:
“I’ve learned nearly all I know about thermography from others and have, honestly, barely scratched the surface, so I resolve to learn more from my professional colleagues.”

I was fortunate to visit the home of Sir William Herschel in the Fall of 2010. Here I am […]

Chip Wade Inspects a Commercial Property

Many of the same principles of a thermal inspection in a home can be applied to a commercial property inspection.  In this video, Chip Wade shows you how you can take your business to the next level by offering commercial property inspections. He spots a problem in a warehouse that is being converted to an […]

Chip Wade Uncovers Common HVAC Problems

In our fifth video presented by Chip Wade, common problems in a home’s HVAC system are easily unveiled with the use of a thermal imager. Especially in a home that is 100 years old, inefficient vents and ducts are likely to be draining money on your energy bill. Chip spots a couple of problems that can […]