THERMOGRAPHY

PRESENTED BY: Shakil Muhammad. UET Peshawar,Pak

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 conditions

OBJECTIVES. To detect hot or cold areas. To determine absolute temperature To view Thermal profiles To detect temperature loss

Infra Red is part 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

Hand held portable camera

Battery Powered Operating at correct

wavelength Range…..-20°c to

+1500°c. Real time display Image Recording

capability

Non Contact Rapid Scanning Data can be recorded in differing

formats Images produced are comprehensive &

reliable

Object radiates infra red radiation Temperature difference Differences are detected and

displayed visually Emissivity values must be observed

Non Contact Non Intrusive Can work at a distance Fast and Reliable Portable Convincing Results

There must be 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

Switch Gear Fuse boxes Cable runs Electrical

connectors Insulation Transformers

22.7°C

43.7°C

25

30

35

40

SP01

Used for the detection of;

Corroded connections Slack / loose

connectors Connectors at too

high an operating temperature

Hot spots

The detection of process or manufacturing faults

Can be used as a quality control tool