Welcome to the NEW Infrared Training Forum. To view the old message board, please click here.World Class Infrared Training for Thermography Professionals


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Thermal Imaging of Glass
06-12-2012, 04:01 PM (This post was last modified: 06-19-2012 12:28 PM by Gary Orlove.)
Post: #1
ITC Thermal Imaging of Glass
A user asks:

Hi all, I have been asked to justify the expenditure of re-glazing an office block by thermal imaging a section of the existing glass and then another image of a an upgraded glass panel. Do you think it would be best done at night in the darkness (hopefully there will be no refection from street lighting) .
Find all posts by this user
Quote this message in a reply
06-18-2012, 01:53 PM (This post was last modified: 06-19-2012 12:29 PM by Gary Orlove.)
Post: #2
ITC RE: Thermal Imaging of Glass
I would recommend imaging the glass on an overcast day or night. Compare glass from the same level on the building.

Here is what often happens when the Reflected temperature of the windows is different, making an obvious comparison impossible. Click on the images for a magnified view.

   

Now look at this image of the same house taken from a longer distance where the reflected temperature components are the same. The area of the previous images is shown in the black rectangle inset and comparisons are much easier to portray.

   
Find all posts by this user
Quote this message in a reply
07-12-2012, 05:21 AM
Post: #3
RE: Thermal Imaging of Glass
That makes wonder how usefull are wide angle lenses?
Should we avoid them if possible?
Find all posts by this user
Quote this message in a reply
07-12-2012, 08:32 AM
Post: #4
RE: Thermal Imaging of Glass
Wide angle lenses are extremely useful for building investigations and are usually the lens of choice for these applications.

It is the thermographer's responsibility to choose the appropriate equipment, environmental conditions, and views to produce a good survey result based on knowledge, training, and experience.
Find all posts by this user
Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Thermal Imaging Camera omputpu 2 3,203 01-04-2019 03:09 PM
Last Post: MICHEL DION
  Can thermal imaging be used to evaluate window glass performance? timoss 3 0 07-03-2018 03:40 AM
Last Post: Bobberry
  Mirrors for thermal imaging dpocius 3 6,486 06-26-2013 04:40 PM
Last Post: Gary Orlove
  Veterinary Thermal Imaging Course Vetel Diagnostics 0 3,928 04-22-2013 04:12 PM
Last Post: Vetel Diagnostics
  Thermal Imaging for mechanical components Nishantkumar 5 10,205 07-18-2012 11:15 PM
Last Post: chicago infrared

Forum Jump:


User(s) browsing this thread: 1 Guest(s)
Copyright © 1999-2012 FLIR Systems, Inc.