Infrared and thermal imaging is a global area inspection technique that detects and measures temperature and temperature differences to detect indication of disbond, delamination, cracks, residual stress and other conditions that impact heat flow. IR images provides temperature maps. Thermography is the use of IR imaging and measurement camera to see and measure thermal energy. Thus thermography measures heat which is constantly radiating away from any surface. This method is attractive for diagnosis because of its safe and non-invasive nature. Thermal images are observed in a color gradation from hot to cold. We can see a spectrum of colors from darker to lighter ones as a temperature increase is being examined.As temperature increase is an indication of most of the diseases IR imaging technique can be used for diagnostic purposes. IR imaging techniques are used in industries for checking the corrosion damage of exposed pipelines, delamination, cracks etc.

hello
i would like to get details of infrared & thermal imaging

please go through
http://electrophysicse/dl-files/whitepapers_ph/WP-Ph-TIQ.pdf
http://temperaturesthermalimaging.html (basics of INFRARED AND THERMAL IMAGING )
http://en.wikipediawiki/Thermography


Infrared Thermography, thermal imaging, thermographic imaging, or thermal video, is a type of infrared imaging science. Thermographic cameras detect radiation in the infrared range of the electromagnetic spectrum (roughly 900“14,000 nanometers or 0.9“14 µm) and produce images of that radiation, called thermograms, Best performace given by Indium Gallium Arsenide (InGaAs) detectors which is highly resistant to damage from intense lasers, allowing direct illumination onto the focal plane for beam profiling. Integration times can be set to provide a very wide dynamic range

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https://tspace.library.utoronto.ca/bitst...maging.pdf
http://prtech-thermalimagingproducts/infrared_technotes/tech_driving.pdf
http://prtech-thermalimagingproducts/pdfs/tech_pubsafe.pdf

hey http://cctv-information.co.uk/i/Thermal_Imaging this page link is very useful for thermal imaging

use to read this page link also http://inframedcentralPUB/acu-poster.pdf
http://staffnet.kingston.ac.uk/~ku33185/...idal03.pdf

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ELECTRICAL INSPECTIONS


Recent technical manuals published by National Fire Protection Association (NFPA) and the Inter-National Electrical Testing Association (NETA) prominently recommend the use of infrared inspection in the testing and maintenance of electrical systems

Dan Playforth
Thermographer Level II


Infrared Thermography

An Infrared Camera Senses Infrared Radiation
A Processor In The Camera Assigns Color To The Infrared Radiation-Different Color Equals Different Temperature
Enabling Us To Visualize The Thermal World

Benefits of Periodic Electrical Infrared Inspections

Predictive Maintenance...Allows Scheduling Of Repairs, Forward Buying

Reduces Downtime… Find It, Repair It, Before It Blows Up and Stops Production

Qualitative Infrared Electrical Inspection

Qualitative Inspection: The practice of gathering information about an electrical system by observing infrared radiation, recording findings, analyzing findings, and presenting that information.

Exceptions: are abnormally warm components that may be a potential problem. Exceptions are usually identified by comparing the thermal patterns of like components.

Electrical Inspection Items

Transformer
Pad Mount
Dry
Overhead
Service Entrance
Main Switchgear
Motor Control Centers
Disconnects


Bus Duct
Distribution Panels
Control Panels
Rectifiers
Drives
Capacitor Banks
Any Electrical Connection

Exception Analysis

Below is an exception. One of the conductor terminals is hot.
Hot Terminal Temperature…..203F
Left Terminal Temperature….156F
Temperature difference is …… 47F

Infrared Tips

Use a Certified Thermographer
Proper Training is vital to understand thermography
Cost Effective - Quality Camera is $20,000 to $50,000
Scan should cost from $800 to $1500 per day
Inspect When System Load Is High
Useless To Scan Under Light or No Load
Keep in mind that an infrared electrical inspection is only a report of the electrical system at the time of the inspection. Equipment that was off or unloaded because of cycling or scheduling may have problems that were not evident at the time of the inspection.
Do Inspections On A Periodic Basis
--Annually Good - Semi-Annually Better (at least first couple of times)
Insures that over period of time all equipment is inspected

Benefit of Electrical Infrared Inspections

"...From a return on investment perspective, infrared inspection programs have proven that on average for every $1 spent on infrared electrical inspections, there is a $4 return on investment for materials and labor from fixing the problems before it fails..."
"Cost/Benefits Analysis of Infrared Programs." Maintenance Technology Magazine June 2001

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[attachment=9095]
INFRARED THERMOGRAPHY
Infrared Radiation
Infrared Thermography
• An Infrared Camera Senses Infrared Radiation
• A Processor In The Camera Assigns Color To The Infrared Radiation-Different Color Equals Different Temperature
• Enabling Us To Visualize The Thermal World
Infrared Image
Color Palette Range Is Chosen For Clarity
Some Uses Of Infrared Thermography
• Electrical Inspections Hot Connections Failing Components Overloaded Circuits
• Mechanical Inspections Motors, Bearings, Drives, Steam Systems, Boilers
• Fire Hot Spots People Rescue
• Building Thermal Envelope Roof Leaks
• Military

• Medical Severe Acute Respiratory Syndrome (SARS)
• Manufacturing Processes Plastics Carpet Heat/Chilling Processes
• Mill Operations Slag Detection
• Police Work Fugitive Search Drug Enforcement Missing Persons Search
• Animal Equine Hot Joints Ligaments
Benefits of Periodic Electrical Infrared Inspections
• Predictive Maintenance...Allows Scheduling Of Repairs, Forward Buying
• Reduces Downtime… Find It, Repair It, Before It Blows Up and Stops Production
Qualitative Infrared Electrical Inspection
Qualitative Inspection: The practice of gathering information about an electrical system by observing infrared radiation, recording findings, analyzing findings, and presenting that information.
Exceptions: are abnormally warm components that may be a potential problem. Exceptions are usually identified by comparing the thermal patterns of like components.
Electrical Inspection Items
• Transformer
– Pad Mount
– Dry
– Overhead
• Service Entrance
• Main Switchgear
• Motor Control Centers
• Disconnects
• Bus Duct
• Distribution Panels
• Control Panels
• Rectifiers
• Drives
• Capacitor Banks
• Any Electrical Connection