Computer Programming – Basics
We assume you are well aware of English Language, which is a well-known Human Interface Language. English has a predefined grammar, which needs to be followed to write English statements in…
Introduction to Computer Programming
If you understood what a computer program is, then we will say: the act of writing computer programs is called computer programming. As we mentioned earlier, there are hundreds of programming languages, which…
Computer Programming – Overview
Why Programming? You may already have used software, perhaps for word processing or spreadsheets, to solve problems. Perhaps now you are curious to learn how programmers write software. A program is a…
Quality Control of Dwell
The dwell step involves allowing the test component to sit for a sufficient period of time for the penetrant to fill any surface breaking defects that happen to be present.…
Health and Safety Precautions in Liquid Penetrant Inspection
When proper health and safety precautions are followed, liquid penetrant inspection operations can be completed without harm to inspection personnel. However, there are a number of health and safety related…
Nature of the Defect
The nature of the defect can have a large affect on sensitivity of a liquid penetrant inspection. Sensitivity is defined as the smallest defect that can be detected with a…
System Performance Check
System performance checks involve processing a test specimen with known defects to determine if the process will reveal discontinuities of the size required. The specimen must be processed following the…
Quality Control of Lighting
After a component has been properly processed, it is ready for inspection. While automated vision inspection systems are sometimes used, the focus here will be on inspections performed visually by…
Quality Control of Developer
The function of the developer is very important in a penetrant inspection. It must draw out of the discontinuity a sufficient amount of penetrant to form an indication, and it…
Quality Control of Penetrant
The quality of a penetrant inspection is highly dependent on the quality of the penetrant materials used. Only products meeting the requirements of an industry specification, such as AMS 2644,…
