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:
  • 2 Votes - 3 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Why two different object temperature ranges in FLIR Uncooled A3xx, A6xxsc series
12-22-2015, 03:14 AM
Post: #1
Why two different object temperature ranges in FLIR Uncooled A3xx, A6xxsc series
Please explain me why there are two object temperature ranges mentioned in FLIR uncooled model A655sc, -40C to 150C and 100C to 650C instead of -40C to +650C. Somewhere it is explained that two ranges are done in order to avoid the saturation. Please explain in simpler way.. it will be conducive for me.


Please find attached datasheet of the model.


Attached File(s)
.pdf  FLIR-A655sc-Datasheet.pdf (Size: 292.29 KB / Downloads: 0)
Find all posts by this user
Quote this message in a reply
12-22-2015, 10:41 AM
Post: #2
RE: Why two different object temperature ranges in FLIR Uncooled A3xx, A6xxsc series
The analogue to digital converters in many bolometer cameras are 14 bits or more. However, the usable dynamic range of the system is less than that.

We optimise the response and try to find the most linear part of the detector signal, avoiding non-linearities at the extreme ends of the response curve and also try to get rid of pixels far from the ideal gauss function to reduce background patterns and noise. This will reduce the dynamic range. There are different technical solutions for different types of detectors, this is true for most types of FPA's.

Therefore to stay within the linear part of the detector signal (and to avoid detector saturation), more than one range is necessary.
Find all posts by this user
Quote this message in a reply
12-23-2015, 12:33 PM
Post: #3
RE: Why two different object temperature ranges in FLIR Uncooled A3xx, A6xxsc series
Thank you very much Gary sir!!
Find all posts by this user
Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  New Online Course: FLIR K Series Basics Gary Orlove 0 1,511 01-10-2014 01:47 PM
Last Post: Gary Orlove
  New Online Course: FLIR Ex Series Basics Gary Orlove 0 2,005 01-10-2014 01:44 PM
Last Post: Gary Orlove

Forum Jump:


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