
Everything infrared thermography including discussions on thermal imaging equipment, the applications, limitations of the technology, educational tips & videos and much more!
Wednesday, March 7, 2018
Less Expensive Thermal Imagers Never Meant Less Training

Friday, January 26, 2018
Lens Choice for Looking Through IR Windows
More and more organizations are installing IR windows or sight glasses in their electrical equipment so inspections can be made with an infrared camera.
The advantages are obvious: worker safety is improved as thermographers and electricians don't have to open live electrical cabinets, and inspection times can be reduced.
However, what lens choice is the best to use with your infrared camera to provide adequate resolution, and yet see as much of the electrical equipment as possible?
Here are three images that were taken at a power plant looking at an ISO phase buss. The buss is only about a foot away and is taken looking through an infrared window (crystal type).
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25 deg. |
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45 deg. |
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90 deg. |
As you can plainly see, the 90° lens is clearly the way to go. It provides enough detail for analysis, yet extends your field of view by a huge amount.
Thursday, September 7, 2017
IR finds Yellow Jackets Nest in House
by Sanin Mulic, Barber Foods
After attending my level one instruction during the week, and ITC wetting my appetite for thermal imaging, I returned home with my company's P-65 camera. I decided to scan my own house to practice what I was taught all week. All looked good until I went upstairs and noticed a bright spot on the inside wall. I took several images of the spot and come Monday, I talked to two level 2 associates about what I had found. There were several possibilities and I was told to take several more shots at different times to see if it moved or varied in temperature. When we found it never moved I suggested that it might be insects (wasps, hornets, etc.) and talked with one of the other thermographers who would bring in a stethoscope to see if I could hear them before opening up the wall.
Thermal image of the wasp nest (left).
I couldn’t wait, so that night armed with a drill, a can of flying insect killer, and the enthusiasm of a new thermographer, I went up to the room; my pet cat, who loves to lay in the window there, had to investigate with me too. I approximated where the hotspot was and drilled a 1/8 “ hole through the wall board. As I removed the drill bit, about 8 to 10 yellow jackets came charging through the hole and I started to spray the bug spray at the hole. By this time, the yellow jackets were in an attack mode and I started to swing at them in defense. Out of the corner of my eye I saw my cat speeding to the door with his tail bigger than I have ever seen it. I finally killed the last one, sprayed about 1/3 of the can, and plugged the hole; but not before being stung twice. I went outside and saw a swarm just outside the window. I drilled a second hole a few inches above it and knowing what was going to follow, I had the spray ready to go as soon as the drill came out. I sprayed about 1/3 of the can and then plugged the hole. I returned several hours later and the swarm was gone. I climbed a ladder and found a small hole where they were coming and going. I plugged that from the outside. As I came back inside I saw my cat peaking from around the door as if to ask “Is it safe to come out now?”
After a few days I took another thermal image and there was no evidence of the yellow jackets remaining. I submitted this investigation as my level one field report and it passed, but the memory of this initial experience will last a long time (the cat won’t forget it either!)
Tuesday, August 29, 2017
Why does my Infrared Camera read higher than my Infrared Temperature Gun?
The answer is, in a word, resolution. Take a look at the image below.
The infrared camera is able to locate and measure much smaller objects than an IR temperature gun. Note the spot measurement on the infrared image; its reading is 250 F. Contrast that to the average area measurement typical of an infrared gun at a reading of 184 F. The gun is averaging all the hot areas along with the cold areas of the grating we see in the image.
Another common question is why the IR camera reads a higher temperature than a contact temperature probe? Contact temperature probes require an extremely good contact in order to read a decent temperature. In fact these probes measure their own temperature, so if the heat transfer is not good from the substrate, and the probe sensor is colder than the surface, the temperature will be lower. Also remember that contact thermometers act as heat sinks, sucking heat out of a surface.
Tuesday, February 7, 2017
Call for Papers: ITC International User Conference - September 2017
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Main paper presentations at the 2014 ITC User Conference in Stockholm, Sweden |
- Long paper - duration of the presentation about 40 minutes
- Short paper - duration of the presentation about 20 minutes
- Poster
- Seminar - highlight trends and technologies with future importance for the field of thermography and infrared measurement.
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FLIR Tools was just one of the many seminars offered at the 2014 event in Sweden |
Monday, January 30, 2017
New Training Dates Announced for sUAS Level I Thermography Certification
The following dates and locations have been announced in 2017:
Atlanta, GA
April 25-28
Boston, MA (ITC Headquarters - Nashua, NH)
May 15-18
Dallas, TX
June 6-9
King of Prussia, PA
August 22-25
Nashville, TN
September 19-22
Learn More and Register Here
Attendees who successfully complete all course requirements, including their field assignment, will receive a sUAS level 1 Infrared thermography certification from ITC.
Wednesday, September 21, 2016
PUT YOUR MASK ON BEFORE HELPING OTHERS…
Infrared Training Center
Nashua, NH 03063
Yes, another “Ron travel story!”
Those of us who travel react differently to the Flight Attendant Safety Instructions. Some ignore them, some sleep through, the rare person actually pays attention and the multi-million miler has heard it thousands of times. That doesn’t mean that we don’t listen still and take it seriously. Many years ago I actually had a flight abort a takeoff and ended up going down the emergency chute!
On 8/30/2016 I was flying Delta 1480 from Hartford, CT to Detroit, MI. The flight had 80 empty seats, strange. When I arrived at the gate and saw this I wondered what did other people know that I didn’t…
I had been upgraded to First Class five days earlier and chose seat 2D to get a snooze as the flight was to depart at 540 am. The graph to the right (www.flightware.com) shows we took off about 545 am, right on time. The pilot brought us to 36,000 feet about 15 minutes later. I was dozing off when my ears started popping, seriously popping. This was sometime around 615 am. I had to keep swallowing. The plane was level so that meant one thing – depressurization! Sure enough the Oxygen masks dropped down!
Well, even after 3 Million miles I must admit my heart raced a bit but I remembered the instructions on how to put my mask on. My seat mate did too. The other 10 First Class passengers did not! Maybe they think hypoxia is a joke. Maybe they can’t spell hypoxia? If we were going to be a lawn dart I sure wanted to see it end!
Anyway, the pilot headed to lower altitudes (24,000 feet) pretty quickly while we were told it was a problem with the A/C Unit (maybe a valve?). You can see the descent rate and final altitude below.
Wednesday, March 16, 2016
Why Would I Need a Mid-Wave Infrared Camera?
We are often asked this question in our infrared certification classes. There are a number of important reasons...to detect certain gasses including methane, to better measure the temperature of glass (it has a high emissivity, >.90 in MWIR) and to minimize reflections when inspecting certain low-slope roof membranes.
It also allows us to successfully inspect inside a furnace because mid-wave cameras can see clearly through flame at specific mid-IR wavelengths, something that a long-wave imaging system does not provide due to the radiation transmission properties of fire. This capability improves the accuracy of temperature readings and allows for better analysis of thermal patterns when evaluating the efficiency of burners, capturing the temperatures of tubes or detecting the build-up of coking.
Tuesday, December 22, 2015
Inspecting Solar Panels with UAVs
This application of infrared thermography has come a long way and now, with a new aerial perspective, is an extremely efficient tool for maintenance and quality assurance inspections of solar systems. In contrast to time consuming traditional methods, large solar installations can now be inspected quickly from the right distance and view point.
Even with these advancements in the technology, however, a thermal imager still does not have the ability to detect problems on its own – you still need a qualified operator with the right knowledge and skills to use it properly.
That’s where ITC can help with training and certification! Check out our website for a complete list of course locations and dates now available through September 2016.
Wednesday, November 4, 2015
New Live Webcasts and On-Demand Webinars
Learn more and register here, plus get access to 20 on-demand webinars that are free and available for viewing any time:
www.infraredtraining.com/webinars
Besides US-based live webcasts and on-demand webinars, ITC also offers European-based sessions with more convenient times for those attending internationally:
http://www.irtraining.eu/en/webinars/webinars.html
Live Webcasts - North American Broadcast Schedule
November - January
FLIR Tools Software Basics
Friday, November 6
FLIR Tools+ Advanced
Friday, November 6
Introduction to IR for Building Systems
Friday, November 13
Introduction to IR for Electrical Applications
Tuesday, November 24
Hands-On Operation of Your FLIR Thermal Imager
Friday, December 11
Building Moisture Inspection Basics
Friday, December 18
Overview of IR Optical Gas Imaging Webinar
Monday, December 21
Infrared Thermography Basics
Wednesday, December 30
Thermographer Q&A: Capturing Great Thermal Images
Friday, January 8, 2016
Monday, November 2, 2015
InfraMation 2018 - Call for Papers and Abstracts
InfraMation 2016 will be held in Las Vegas, Nevada, at the Rio All-Suite Las Vegas Hotel and Casino September 27-29, 2016, with a pre-conference training day on September 26. Join other thermal imaging experts to learn the latest thermal imaging techniques and applications, and make valuable connections!
The InfraMation 2016 Call for Papers is now open through February 5, 2016. FLIR Systems and the Infrared Training Center (ITC) are currently accepting 150-250 word abstracts of presentations and/or clinics to be delivered to InfraMation 2016 conference attendees. The audience will consist of more than 500 condition monitoring engineers, maintenance technicians, building inspectors, restoration contractors, research and science professionals, optical gas imaging specialists, and test and measurement buyers. Submit your abstract through this simple online form.
Benefits & Requirements
Why should you present at InfraMation 2016?
- Qualify for a deeply discounted conference registration fee
- Identify yourself as an infrared thermal imaging expert in your field
- Earn valuable certification renewal credits
- Further validate your expertise for clients and customers
- Expand your professional and business referral network
- Represent your organization on a big stage
- Publish your paper on a searchable CD that every InfraMation attendee receives
InfraMation is the leading infrared training experience in the world. As thermal imaging becomes more mainstream, early adopters such as yourself will be sought out for your extensive knowhow and experience. Simply put: InfraMation is the place to get recognized!
The only "hard" requirements are that your paper be non-commercial in nature (for sponsorship or exhibition opportunities, click here) and submitted in English. Abstract approval is based on clarity, suitability, and technical merit of work.
Suggested Topic Areas
- Buildings - Roofing Systems
- Buildings - Water Ingress / Moisture / Remediation / Mold Testing
- Buildings - Insulation / Air Leakage / Energy Loss
- Buildings - Standards & Certification
- Buildings - Pest Detection and Control
- Condition Monitoring - Electrical Distribution - Indoor, Outdoor, Transmission, Distribution
- Condition Monitoring - Mechanical Applications - Bearings, Gearboxes, Conveyors, Steam, Hydraulic
- Condition Monitoring - Standards & Certification
- Condition Monitoring - Petrochemical Applications
- Business - Marketing/Sales/Pricing
- Business - Program Management / Cost Avoidance / Cost Saving
- Business - Safety
- Research & Science Applications
- Medical/Veterinary Applications
- Optical Gas Imaging Applications
- IR Report Preparation Techniques
- NEW - Aerial Drone and UAV Applications / Techniques
- Non-Destructive Testing - Material flaws, voids, etc.
- Alternative / other Applications / Other Technologies
The Shadow Man Cometh
By Ronald Lucier, ASNT NDT Level III, Infrared Training Center
When I use the term “Radiation Heat Transfer” in my classes I sometimes get puzzled or even frightened looks as some folks associate the term radiation to Chernobyl and atomic weapons. It takes only a few minutes and a couple demonstrations to put them at ease though.
One of the simpler demonstrations is done outdoors on a sunny, warm day. It is common knowledge that the Sun is HOT – roughly 6000 ˚C or 10800 ˚F. Happily the Inverse Square Law and our atmosphere attenuate the thermal radiation to livable levels here on Earth!
But it is still thermal radiation! What happens if we interrupt that radiation? A simple experiment is to take a thermal camera into a safe area, like a parking lot, and create your own shadow!
I did this in the middle of my street the other day. Fortunately we don’t get much traffic, usually only the postman drives by and that’s to turn around and deliver mail.
Setting my camera up (a FLIR T650sc) to record a radiometric .csq file, I started recording and walked into the scene and made a shadow. The change in roadway temperature WAS INSTANTANEOUS! After 30 plus years in the business we sometimes get surprised and I was! Look at the raw plot data, ignore the spikes and where I walked into the scene:
The two spots started out at the same temperature. Just look at the table data.
Time (sec) | Roadway | Shadow | Difference |
0:00 | 98.2 | 98.3 | 0.1 |
9.37 | 98.9 | 98.5 | -0.5 |
14.77 | 99.1 | 97.7 | -1.4 |
22.2 | 99.4 | 97.2 | -2.2 |
29.8 | 99.7 | 97.1 | -2.6 |
50.13 | 99.9 | 96.1 | -3.8 |
61.6 | 100.0 | 95.5 | -4.5 |
67.3 | 100.0 | 95.4 | -4.6 |
All temperatures are in degrees Fahrenheit.I stopped taking data at 67 seconds as it was indeed a partly cloudy day and the clouds came by. Here are my start, middle and end jpegs:
Engineers love graphs so I can’t resist! I took five seconds of data and drew a trend line through both sets to show that the roadway wasn’t cooling, just the shadow.
This doesn’t require a high end camera such as the FLIR T650sc – any IR camera, a little Sun, an absorbing surface such as a sidewalk or even a wall will suffice.
The best way to learn is to teach! I encourage all the readers of this article to go teach your friends, co-workers and family a little bit about radiation heat transfer!
Wednesday, September 30, 2015
InfraMation 2016 - The Leading IR Training Experience
The main conference will run Tuesday, September 27 through Thursday, September 29, with a pre-conference training day scheduled on Monday, September 26. Join other thermography experts from around the world to learn the latest thermal imaging techniques and applications while making valuable connections!
And don’t just take our word for it…check out this video to see what past InfraMation attendees are saying about their experiences at the world’s largest conference for professional thermographers:
The best registration deal available for a limited time is the Platinum Package that not only includes full access to all four days of the event and conference meals, but also a FLIR C2 compact thermal imager, free ITC certification renewal, and entry into a drawing for a free FLIR E8 infrared camera.
The pre-conference training day on Monday, September 26, is a must for any thermographer looking to expand their knowledge in one of four available educational tracks that include two new certificate training areas:
- Optical Gas Imaging and Research & Science
- FLIR Tools Software and Thermography Inspections with UAVs
- Advanced Thermography for Condition Monitoring – Certificate Training
- Fundamentals of Thermography & Home Inspections – Certificate Training
Monday, August 17, 2015
New FLIR Tools Videos Added to ITC's YouTube Channel

- Import Images: This video has been updated to show the new import window and UltraMax option. There is also a section about managing the library images and folders (adding, deleting, etc.).
- Analyze Images: This segment shows the new user interface and new features such as the regional auto-adjust, CSV export, and color distribution modes.
- Create Report: A new video demonstrating how to create and edit a REPX report.
Tuesday, July 21, 2015
Building Thermal Envelope Commissioning - Free White Paper
Click Here to Download
InfraMation 2016 will be held in Las Vegas, Nevada at the Rio Hotel and Casino on September 27-29, 2016. The event will also include a pre-conference training day on Monday, September 26. Save the date and plan to join hundreds of other thermography professionals where you’ll learn the latest thermal imaging techniques and applications while making valuable connections! If you’re not sure what to expect, here’s just some of the great content and entertainment that attendees experienced at InfraMation 2015 in Nashville.
Tuesday, July 14, 2015
Live Webcast Schedule Continues Through September 2015
In addition, ITC now has 20 on-demand webinars available for viewing at any time including sessions in German and French with more to come throughout the rest of 2015.
Registration for all US-based live webcasts and on-demand webinars can be found at www.infraredtraining.com/webinars
Or head to http://www.irtraining.eu/en/webinars/webinars.html for more information on our Europe-based live webcasts and on-demand sessions.
New Live Webcasts: July – September 2015
Infrared Thermography Basics
Friday, July 24
Ask the Expert: IR & Electrical Safety
Friday, July 31
FLIR Tools Software Basics
Friday, August 7
FLIR Tools+ Advanced Software
Friday, August 7
HVAC and IR Inspection Basics
Friday, August 14
Ask the Expert: Capturing Great Thermal Images
Wednesday, September 2
Introduction to ResearchIR Software for Thermography Cameras
Thursday, September 10
IR Basics for Home Inspectors
Thursday, September 10
Introduction to IR for Mechanical Applications
Friday, September 25
Tuesday, June 16, 2015
ITC’s Live Webcasts and On-Demand Webinars Go Global
About 18 months ago the Infrared Training Center (ITC) launched a new and improved webinar program covering a variety of free topics on the basics of thermography and its many applications. Since January 2014 we have successfully hosted 40 live webcasts and are now offering 15 on-demand webinars that are available for viewing at any time. Stay tuned in the coming weeks as additional live webinar dates for July, August and September are announced.
Starting next week, however, our webinars will also take on a more global focus as ITC begins hosting regularly scheduled topics specific to certain countries, regions and languages with a variety of new live broadcasts that originate from the United Kingdom, France, and Sweden.
The benefit of running these webinars globally will not only improve the overall viewing experience by offering more convenient local broadcast times, it also allows ITC to start presenting live sessions in other native languages, beginning with French and German. Content of course will be delivered by global ITC instructors in their respective home countries and will eventually contain material that is more appropriate, and better customized, for their regional audiences.
For those of you who still may not be familiar with these, ITC’s complimentary educational webinars are designed to provide a valuable overview of thermal imaging and its many applications. By attending these free, interactive, online sessions participants learn not only the basics of infrared thermography, but also where IR can reduce costs, save energy and increase safety for professionals across a variety of industries.
To view the latest topics, dates and times of ITC’s new global webinar schedule, please visit the ITC EMEA website at www.irtraining.eu. For the latest US-based live webcasts, and a listing of all on-demand webinars currently available, please visit www.infraredtraining.com/webinars
Thursday, May 28, 2015
InfraMation 2015 Conference Review
The industry’s leading thermal training experience offered that, and a whole lot more, as the 2015 InfraMation conference rode through downtown Nashville, Tennessee May 11-14 at the Renaissance Hotel. Approximately 60 paper presentations, training clinics & poster sessions provided the nearly 500 attendees with a wealth of learning and networking opportunities not seen anywhere else in the world of thermography:
The main conference continued on Tuesday, May 12 with an opening keynote by Brent Bushnell, CEO of Two Bit Circus, a Los Angeles-based experiential entertainment company.
Wednesday, April 29, 2015
All About the Timing: Insulation Inspections and Solar Loading
Matt Schwoegler, Infrared Training Center
The effects of the Sun on the surface of a building can make inspections quite challenging for thermographers looking for missing insulation. The transient conditions created by solar loading not only mask infrared patterns on the exterior, it also impacts the thermal signature on the interior, perhaps leading one to believe (in the right conditions) that a wall appears to be uninsulated, when in fact it is insulated.
To capture this, I recently set-up an infrared camera at home to monitor thermal changes on a south facing wall from the interior. The plan was to image the pattern reversal that occurs on an interior surface when the Sun heats the exterior up to a point where the direction of heat flow in the wall reverses, even though the air temperature remains colder outside.
I programmed the camera to record an image every 15 minutes starting at 7:00 a.m. Conditions at the time were ideal to check for insulation problems in a wood-frame building given the interior air temperature of 68˚F (20˚C) and an exterior air temperature of 33˚F (0.5˚C). The first image taken, seen here on the right, shows a wall which appears to be mostly well insulated (warm cavities and cooler framing). As the day progressed, however, the situation changed dramatically.
Tuesday, April 14, 2015
Infrared Training Center Visits Local Elementary School
by Alex Chrusciel
Infrared Training Center