[AZ-Observing] TEC Cool Down Effect on a DSI Pro
- From: Jeff Hopkins <phxjeff@xxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Sat, 18 Aug 2007 18:16:25 -0700
I have had a chance to do some experimenting with simple TEC/Heat
Sink/Fan on a DSI Pro. The referenced image is a graph of the
Histogram counts for a 1 second exposure starting out at an ambient
temperature of about 80 deg F.
As can be seen the ADU counts start out around 21,600 and after about
5 minutes are leveling off around 7,000. The graph can be seen at:
http://www.hposoft.com/CoolDown.jpg
I have tried to take darks before and after cooling, but while there
is certainly an improvement it is not as dynamic as watching the ADU
counts go down.
For a few dollars (under $50 total including power supply) and only
modifying the DSI by drilling two mounting hole, the camera can see a
significant improvement.
Jeff
--
Jeff Hopkins
HPO SOFT
Counting Photons
http://www.hposoft.com/Astro/astro.html
Hopkins Phoenix Observatory
7812 West Clayton Drive
Phoenix, Arizona 85033-2439 U.S.A.
(623)849-5889
(623) 247-1190 (Fax)
www.hposoft.com
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
- » [AZ-Observing] TEC Cool Down Effect on a DSI Pro
