Download - Thermography
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THERMOGRAPHY
PRESENTED BY: Shakil Muhammad. UET Peshawar,Pak
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Infra Red Thermography is a technique for producing a visible image of invisible (to our eyes) infra red radiation emitted by objects due to their thermal condit ions
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OBJECTIVES. To detect hot or cold areas. To determine absolute temperature To view Thermal profi les To detect temperature loss
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Infra Red is part of the Electromagnetic Spectrum
It travels in straight l ines at the speed of l ight
The useful part is divided between Short and Long wavelengths
Use of the correct wavelength is essential
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Hand held portable camera
Battery Powered Operating at correct
wavelength Range…..-20°c to
+1500°c. Real t ime display Image Recording
capabil i ty
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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 radiates infra 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 must be a temperature difference for certain surveys
Operator experience is essential Filters may be needed for certain
applications Sensit ivity and Resolution reduce with
distance and angle of view
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Switch Gear Fuse boxes Cable runs Electrical
connectors Insulat ion Transformers
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22.7°C
43.7°C
25
30
35
40
SP01
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Used for the detection of;
Corroded connections Slack / loose connectors Connectors at too high an
operating temperature Hot spots
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The detection of process or manufacturing faults
Can be used as a quality control tool
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