Thermal Imaging
Thermography – Non destructive Testing :
Infrared Thermography is the science of acquisition and analysis of thermal information by using non-contact thermal imaging devices.
What makes Thermography Useful?
It is non-contact –uses remote sensing
- Keeps the user out of danger
- Does not intrude upon or affect the target at all
It is two dimensional:
- Comparison between areas of the target is possible
- The image allows for excellent overview of the target
- Thermal patterns can be visualized for analysis
- Identification can be done via normal digital photographs along with thermal view.
It is real time
- Enables very fast scanning of stationary targets
- Enables capture of fast moving targets
- Enables capture of fast changing thermal patterns.
Condition Monitoring – NDT Technique Thermography:
An infrared camera scans the surface of a component and records any changes in temperature. The presence of a defect appears as a cold or hot spot and can be rapidly located. Very often, the component inspected has to be pre-heated before inspection. Thermography is a non-contact method which provides rapid visual qualitative information about the structural integrity of a material. It is used for condition monitoring of composite materials and concrete and to check alignment of parts
- Electrical Maintenance
- Buildings
- Furnaces and boilers
- Mechanical, friction
- Fluid flow problems
- Tanks and vessels
Applications:
- Condition based maintenance
- R&D
- Medical and veterinary
- QC and process monitoring
- Non-destructive testing
- others
Every object with a temperature above absolute zero (0 Kelvin =-273.15 °C) emits infrared radiation. This infrared radiation is invisible to the human eye. As the physicist Max. It is one of the best tool for preventive maintenance activity.
It can be used to identify
- Abnormal heating points
- Detecting loose or corroded electrical connections
- Detecting electrical unbalance and overloads
- Inspecting bearings
- Inspecting electrical motors
- Inspecting steam systems.