The document discusses infrared thermography, which uses infrared cameras to produce visible images of invisible infrared radiation emitted by objects based on their thermal conditions. It describes how infrared radiation travels and the electromagnetic spectrum. Infrared cameras can rapidly scan objects from a distance and record temperature differences to detect issues like overheating components or insulation problems. Thermography is useful for electrical equipment maintenance and quality control in manufacturing.

1. THERMOGRAPHY
PRESENTED BY: Shakil Muhammad.
UET Peshawar,Pak

2. 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

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

4. 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

5.  Hand held portable
camera
 Battery Powered
 Operating at correct
wavelength
 Range…..-20°c to
+1500°c.
 Real time display
 Image Recording
capability

6.  Non Contact
 Rapid Scanning
 Data can be recorded in differing formats
 Images produced are comprehensive &
reliable

7.  Object radiates infra red radiation
 Temperature difference
 Differences are detected and displayed
visually
 Emissivity values must be observed

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

9.  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

10.  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 the detection
of;
 Corroded connections
 Slack / loose connectors
 Connectors at too high an
operating temperature
 Hot spots

13.  The detection of
process or
manufacturing
faults
 Can be used as a
quality control tool