Latest Blogs

The Think Thermally and MotorTalk blogs are updated monthly, written by Snell instructors and consultants for those interested or involved with infrared thermography and electric motor testing (EMT). Electrical, mechanical, building applications, and EMT are covered in this blog along with discussions on theory, equipment, tips, news, and much more.
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Motor Talk

The Snell Group | Feb 13, 2020
Many of the modern motor testers today utilize a spectral analysis tool known as a Fast Fourier Transform.
Many of the modern motor testers today utilize a spectral analysis tool known as a Fast Fourier Transform or FFT for short. When reading up on motor test theory, this is a topic that is mentioned often and repeated almost as often, but when pressed for...
The Snell Group | Dec 16, 2019
You have heard the phrase “NEW doesn’t necessarily mean good.” How about this one from way back in my high school football days, “Your team is only as good as the worst guy on the bench.” Both these phrases can be applied to your spare motor...

IR Talk

The Snell Group | Jan 30, 2020
How to critically assess the level of maturity of you inspection program.
I quite often comment that I immensely enjoy my job, meeting new people, talking about IR thermography and all of its various applications, and assisting students after they get back to their respective facilities after class are all fun for me. As long as I’ve been...


The Snell Group | Jan 10, 2020
Field Calibration of Your imaging system
El tema de calibración y exactitud de las mediciones de las cámaras infrarrojas podría muchas veces desatar diferentes opiniones. Aun los usuarios de la termografía más capacitados podrían conocer las limitaciones de las mediciones de temperatura radiométrica, y también podrían haber aprendido técnicas para mejorar la...


The Snell Group | Jan 03, 2020
The young women seated has a glass door behind her and is waving at the thermographer, who can be seen in the reflection of the glass waving back.
During the Introduction portion of our Level II course, I like to mention the value of understanding the limitations of your imager. Obviously, it’s important to understand what your imager can do, but often it’s as important to understand what it can’t do. This is especially...
The Snell Group | Dec 04, 2019
Questioning your interpretation of an image.
I'm not in the holiday spirit, that's not what I'm going for here, although I must admit when I typed that the song popped into my head. Now I can't get rid of it. The things I subject myself to for the edification of our faithful...