| 04:28 | Bertl_zZ | changed nick to: Bertl
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| 04:28 | Bertl | back now ...
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| 11:14 | Bertl | off to bed now ... have a good one everyone!
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| 12:51 | derWalter | @bertl_zZ Hey Herbert, how can I use an arduino to controll the Beta and how could I prototype this?
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| 17:19 | Bertl_zZ | changed nick to: Bertl
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| 17:19 | Bertl | morning folks! :)
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| 18:13 | troisdsman | hi
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| 18:14 | Bertl | hey troisdsman!
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| 18:15 | troisdsman | i looked at the 3d model of the axiom enclosure and, maybe i'm wrong (i hope) but the fan will be useless at this place
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| 18:18 | Bertl | that might very well be, I don't think it was tested yet
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| 18:18 | Bertl | (tested or simulated that is)
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| 18:19 | Bertl | what are your main concerns?
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| 18:21 | troisdsman | i make a screenshot
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| 18:24 | troisdsman | https://moncloud.nohost.me/owncloud/index.php/s/XwnlemuKtVyEJwk
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| 18:24 | Bertl | derWalter: the best way would be with an ethernet shield
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| 18:24 | troisdsman | if you look at this screenshot the fan is represented by the black wire bloc
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| 18:25 | Bertl | The owner of moncloud.nohost.me has configured their website improperly. To protect your information from being stolen, Firefox has not connected to this website.
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| 18:25 | troisdsman | connectors are in red and the radiator in blue
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| 18:27 | troisdsman | is there real need of active cooling?
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| 18:27 | troisdsman | on the axiom alpha was it an isue?
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| 18:28 | troisdsman | what are the parts that realy need cooling?
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| 18:28 | Bertl | yep, thus the Alpha got the huge fan :)
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| 18:28 | Bertl | there are two 'problematic' points regarding cooling
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| 18:28 | troisdsman | on the sensor or the fpga?
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| 18:28 | Bertl | first, the Zynq on MicroZed doesn't survive without cooling
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| 18:29 | Bertl | i.e. remove the fan, it ends up shutting down at 140+ °C
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| 18:29 | Bertl | the second point is the sensor itself, which doesn't get very hot (typically 10-15° over environment) but will heat up in an enclosure
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| 18:30 | Bertl | the power boards produces some heat as well (that's the one right after the MicroZed)
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| 18:31 | Bertl | so some kind of air circulation has to be present ... it doesn't need to be much though
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| 18:33 | troisdsman | can it be passive?
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| 18:36 | troisdsman | is there something on top of the microzed card on the current design?
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| 18:37 | troisdsman | is there available place?
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| 18:37 | Bertl | the problem with passive cooling is that it will inadvertendly move the heat from the Zynq (which is happy at 90°C) to the sensor (which should be at room temperature(
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| 18:37 | Bertl | s/))
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| 18:38 | Bertl | define 'on top' of the MicroZed
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| 18:40 | troisdsman | here in the 3d model there is a lot of place back of the microzed
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| 18:41 | troisdsman | "a lot" mean the size of the usb/rj45 conector
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| 18:45 | Bertl | https://www.film-tv-video.de/wp-content/gallery/nab2015-open-source-kamera-axiom-von-ap/B_NAB_Axiom_Beta_2.jpg
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| 18:45 | Bertl | https://apertus.org/sites/default/files/styles/frontpage-slider/public/beta_slider_neu.jpg
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| 18:46 | Bertl | https://wiki.apertus.org/images/thumb/a/a9/BetaGuide.jpg/500px-BetaGuide.jpg
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| 18:47 | Bertl | https://wiki.apertus.org/images/a/a9/BetaGuide.jpg
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| 18:49 | troisdsman | how, cool pictures
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| 18:51 | troisdsman | is the current fan suficient for the fpga?
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| 18:57 | Bertl | yep, we tested two different setups, a 5V fan (30x30x10) which works great but is a little noisy
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| 18:57 | Bertl | and a 12V fan (running on 5V) which is very quiet but still sufficient on the open Beta
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| 18:58 | Bertl | keeps the FPGA below 70°C
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| 19:00 | troisdsman | :/
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| 19:06 | troisdsman | did you try with a radial one?
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| 19:13 | Bertl | nope
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| 19:20 | troisdsman | sory, disconnected
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| 23:36 | Bertl | off to bed now ... have a good one everyone!
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