Thermography

Thermography

• 1.
  THERMOGRAPHY PRESENTED BY:Shakil Muhammad. UET Peshawar,Pak
• 2.
  Infra Red Thermographyis a technique for producing a visible image of invisible (to our eyes) infra red radiation emitted by objects due to their thermal conditions
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  OBJECTIVES.  Todetect hot or cold areas.  To determine absolute temperature  To view Thermal profiles  To detect temperature loss
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  Infra Red ispart of the Electromagnetic Spectrum  It travels in straight lines at the speed of light  The useful part is divided between Short and Long wavelengths  Use of the correct wavelength is essential
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   Hand heldportable camera  Battery Powered  Operating at correct wavelength  Range…..-20°c to +1500°c.  Real time display  Image Recording capability
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   Non Contact  Rapid Scanning  Data can be recorded in differing formats  Images produced are comprehensive & reliable
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   Object radiatesinfra red radiation  Temperature difference  Differences are detected and displayed visually  Emissivity values must be observed
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   Non Contact  Non Intrusive  Can work at a distance  Fast and Reliable  Portable  Convincing Results
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   There mustbe a temperature difference for certain surveys  Operator experience is essential  Filters may be needed for certain applications  Sensitivity and Resolution reduce with distance and angle of view
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   Switch Gear  Fuse boxes  Cable runs  Electrical connectors  Insulation  Transformers
• 11.
  43.7°C 40 35 30 25 22.7°C SP01
• 12.
  Used for thedetection of;  Corroded connections  Slack / loose connectors  Connectors at too high an operating temperature  Hot spots
• 13.
   The detectionof process or manufacturing faults  Can be used as a quality control tool