Author Topic: QHY9 final production released  (Read 34850 times)

fjcortes

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Re: QHY9 final production released
« Reply #30 on: October 07, 2008, 02:47:15 AM »
Hello,

Please, are there some news?:
- About dark noise information.
- Remaining time to deliver the cameras to the dealers.
- Will the filter wheel ready to go at the time of the camera delivering.

Thank you very much.
Regards,
Francisco Jesus

QiuHY

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Re: QHY9 final production released
« Reply #31 on: October 07, 2008, 08:28:24 AM »
QHY9 Dark frame testing

The setting is :  Gain=0  Offset=120   Exposure time:  0sec, 100sec,  600sec (two) 

http://qhyccd.com/QHY9/dark image 600sec.rar
http://qhyccd.com/QHY9/dark frame 600sec 2.rar
http://qhyccd.com/QHY9/dark frame 100sec.rar
http://qhyccd.com/QHY9/dark frame 0sec.rar



In the 600sec exposure dark image, there is some cosmos ray  ,so I capture two image to do compare.The cosmos ray is in random position.


From the 0sec dark frame , the background STD = 21 ADU.  The system gain is about 0.4e-/adu. So readout noise is about 8e-.


Best regards,

« Last Edit: October 07, 2008, 07:36:33 PM by QiuHY »

xmcvs

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Re: QHY9 final production released
« Reply #32 on: October 07, 2008, 11:40:50 AM »
Hello !

can you please check the links ? i can't download the frames.

Did you calculate the gain from files ?
 g= ( average value in flat ) / ( 0.5 * square(std ( flat1 - flat2 ))
from a curve ?
The way you get the gain is very to me, because important because it is used in the noise calculation.

Thanks
Vincent

xmcvs

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Re: QHY9 final production released
« Reply #33 on: October 09, 2008, 02:12:07 PM »
Hello,

thanks, links are ok now.

Vincent

VentsiBo

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Re: QHY9 final production released
« Reply #34 on: June 30, 2013, 11:33:30 AM »
Hello,

My setup is powered by car battery, so power consumption is important to me... Could you give details about the total consumption of QHY9C? So far the TEC consumption is specified at max 20W, but what about total?

QiuHY

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Re: QHY9 final production released
« Reply #35 on: July 07, 2013, 12:43:40 PM »
Hello,
         The QHY9 is use the same TEC like QHY8PRO/10/12.So you can take a reference of it.  In 50% power it is about 13.5W.

Best regards,