Infrared Thermography and Nondestructive Evaluation
The domain of infrared thermography is recent and covers vast fields of applications. In the industrial context, infrared thermography, or TNDE (Thermographic Non Destructive Evaluation), is deployed either by the…
Wet Suspension Inspection
Wet suspension magnetic particle inspection, more commonly known as wet magnetic particle inspection, involves applying the particles while they are suspended in a liquid carrier. Wet magnetic particle inspection is…
Suspension Liquids
Suspension liquids used in the wet magnetic particle inspection method can be either a well refined light petroleum distillate or water containing additives. Petroleum-based liquids are the most desirable carriers…
How Sleeping Less than 7 Hours a Night Can Lead to Weight Gain
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
Electromagnetic Fields
Magnets are not the only source of magnetic fields. In 1820, Hans Christian Oersted discovered that an electric current flowing through a wire caused a nearby compass to deflect. This…
Magnetic Field Characteristics
Magnetic Field In and Around a Bar Magnet As discussed previously, a magnetic field is a change in energy within a volume of space. The magnetic field surrounding a bar…
PRINCIPLE OF DIRECT PRESSURE (DROP) TYPE AIR LEAK TEST
In this method, a leak is detected by charging test pressure to the work and measuring the change in the test pressure in the work after a given time. Relationship…
Electromagnetic Testing Inspections
What is an electromagnetic testing inspection? An electromagnetic testing inspection is a form of NDT/NDE inspection with a wide range of applications. From boilers, storage tanks and heat exchangers to…
Discuss advantages, limitations and applications of NDT method
Advantages Provides permanent record on filmTechnique standardizedReference standards availableAdjustable energy level gives high sensitivityFluoroscopy techniques available Limitations Trained technician neededRadiation hazardsHigh cost of equipmentPower source needed Gamma-ray Radiography Advantages Provides…
Developers
The role of the developer is to pull the trapped penetrant material out of defects and spread it out on the surface of the part so it can be seen…
