What priority classification should be used for CUI (corrosion under insulation) thermography inspections? CUI is more difficult to classify than electrical thermography. There are many criteria that affect the likelihood of corrosion, including condition of insulation, operating temperature, and surface protection. To classify the risk based on temperature is normally done as follows*; High between … Read More
I have been asked this again. In short the answer is maybe, it depends, but it is not recommended. ISO 18436 does make allowances for previous learning and permits people to move directly to Level 2 in certain circumstances. Every case is really assessed individually. It is likely that if you recently completed a degree … Read More
I am often asked by student to explain the difference between ASNT and ISO certification systems. Proper certification is pure written proof of qualification. So while I agree very much that you can be competent without certification, this is not to say that certification has no value. There are various types of certification; 1 Training company … Read More
Yet again I am faced with the question “How can I make a thermal imaging camera from a Webcam?” I am often asked this, and in particular if the webcam can be converted to work as a thermal imaging camera. The answer to this is that you cannot make a true thermal imaging camera from a webcam. … Read More
I am often asked which is more important, training or experience? I can only really answer this from my own point of view, and this is heavily influenced by my background in the electrical and thermography industries. Some people will argue that training is more important as you cannot gain experience without training. There are … Read More
What is emissivity? Emissivity describes an objects ability to radiate energy. Some objects have a high emissivity, these are typically non metals. Other objects have a low emissivity, these are generally metallic. Emissivity of a material is a value between 0 and 1. A blackbody would have an emissivity of 1, this means that it emits … Read More
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