Changes between Version 17 and Version 18 of WikiStart/Documentation


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Timestamp:
Oct 8, 2018, 2:58:46 PM (6 years ago)
Author:
Jörg Uwe Pott
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  • WikiStart/Documentation

    v17 v18  
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    31'''__KING 70cm Telescope__'''
    42
     3 * '''Mechanical Characteristics '''
    54
    6 * '''Mechanical Characteristics '''
    75|| || || ||
    86|| || || ||
    97
     8 * '''Optical Characteristics '''
    109
    11 * '''Optical Characteristics '''
    1210|| || || ||
    1311|| || || ||
    … …  
    1513|| || || ||
    1614
     15 * '''Other Characteristics '''
    1716
    18 * '''Other Characteristics '''
    1917||Pointing || || ||
    2018||Tracking || || ||
    2119
    22 
    23 * '''Documentation '''
    24  * [./Maintenace]: xxx, xxx
    25  * [./Operation manual]
     20 * '''Documentation '''
     21   * [./Maintenace ./Maintenace]: xxx, xxx
     22   * [./Operation manual]
    2623
    2724= KING 70cm Telescope Documentation =
     25A bit of history (according to Ulrich Grözinger's excellent memory):  Design and construction at MPIA, start of project ~1981 (as filler project). A very similar copy was build. The copy was originally planned for the [https://de.wikipedia.org/wiki/Gamsberg Gamsberg] in Namibia, partially owned by MPIA, but eventually given away to an association of amateur astronomers. KING was erected in the Eastern dome of the Elsässer lab in May 1986, first light in June 1986, first presentation to the public at the open-house day in July 1986 (ELT designers can only dream of such an implementation speed...).
    2826
     27Furthermore:
    2928
    30 A bit of history (according to Ulrich Grözinger's excellent memory):
    31 Design and construction at MPIA, start of project ~1981 (as filler project). A very similar copy was build. The copy was originally planned for the [https://de.wikipedia.org/wiki/Gamsberg Gamsberg] in Namibia, partially owned by MPIA, but eventually given away to an association of amateur astronomers. KING was erected in the Eastern dome of the Elsässer lab in May 1986, first light in June 1986, first presentation to the public at the open-house day in July 1986 (ELT designers can only dream of such an implementation speed...).
    32 
    33 Furthermore:
    3429{{{
    3530Spiegel wurden von Fa. Kaufmann in Crailsheim beschafft.
    … …  
    3934Die Auflösung der Inkremental-Positionsencoder beträgt rechnerisch 50 marcsec.
    4035}}}
    41 
    4236The telescope uses a ''German'' mount: [https://de.wikipedia.org/wiki/Deutsche_Montierung link].
    4337
    44 We uploaded the scanned original documentation including all schematics. For detailed construction drawings please consult the archive of the MPIA construction department [http://www.mpia.de/en/institute/technical-depts/eng-design link].
    45 Downloads:
    46 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/MPIA_70cm_Teleskop_4343_001.pdf MPIA_70cm_Teleskop design] A few drawings to start with giving the size scale of the hardware.
    47 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_intro.pdf ​ Introduction of scanned documentation (PDF, 1.5MB)] This includes instructions how to get the telescope back out of the horizon limits!
    48 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_overview_drawings.pdf Overview drawing from scanned documentation (PDF, 2.1MB)] Includes schematic drawings of control desk, main electric installation and motor drive principle.
    49 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_schematics.pdf The scanned electronics schematics (PDF, 22.5MB)] Let's hope you will never need it.
    50 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_cabling.pdf Scanned cabling plans (PDF, 3.7MB)] Let's sincerely hope you will never ever need it.
    51 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_encoders.pdf Various encoder datasheets (PDF, 7.1MB)]
    52 * [http://www.mpia.de/ASTRALUX/Papers/AstraLux_Diploma_Thesis_2007.pdf Diploma] thesis of Felix Hormuth lists some technical details of KING, the Lucky Imaging experiment AstraLux, and a pointing model of the telescope, reducing the 10' uncalibrated pointing accuracy down to ~1'.
     38We uploaded the scanned original documentation including all schematics. For detailed construction drawings please consult the archive of the MPIA construction department [http://www.mpia.de/en/institute/technical-depts/eng-design link]. Downloads:
     39
     40 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/MPIA_70cm_Teleskop_4343_001.pdf MPIA_70cm_Teleskop design] A few drawings to start with giving the size scale of the hardware.
     41 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_intro.pdf ​ Introduction of scanned documentation (PDF, 1.5MB)] This includes instructions how to get the telescope back out of the horizon limits!
     42 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_overview_drawings.pdf Overview drawing from scanned documentation (PDF, 2.1MB)] Includes schematic drawings of control desk, main electric installation and motor drive principle.
     43 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_schematics.pdf The scanned electronics schematics (PDF, 22.5MB)] Let's hope you will never need it.
     44 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_cabling.pdf Scanned cabling plans (PDF, 3.7MB)] Let's sincerely hope you will never ever need it.
     45 * [https://svn.mpia.de/trac/gulli/king/attachment/wiki/WikiStart/Documentation/king70_docu_orig_encoders.pdf Various encoder datasheets (PDF, 7.1MB)]
     46 * [http://www.mpia.de/ASTRALUX/Papers/AstraLux_Diploma_Thesis_2007.pdf Diploma] thesis of Felix Hormuth lists some technical details of KING, the Lucky Imaging experiment AstraLux, and a pointing model of the telescope, reducing the 10' uncalibrated pointing accuracy down to ~1'.
     47 * Mirror re-coating: {{{ Lief damals schon über das e-Procurement, sollte also im Einkauf noch einen Paper Trail geben.
     48
     49Bei Bedarf in Hamburg anfragen, wer gerade der Ansprechpartner für's Bedampfen ist, dann mit demjenigen einen Termin finden und den Preis erfragen, dann über unsere Verwaltung den Transport organisieren.
     50
     51Damals war dort Arnis Levits (alevits@hs.uni-hamburg.de) der Kontakt, Bedampfung hatte 1300.- netto gekostet.
     52
     53Unser Primär- und Sekundärspiegel haben damals gleichzeitig reingepaßt, das macht die Sache günstig. Jetzt haben beide aber auch eine SiO2-Schicht oben drauf, können also schonend gereinigt werden, ohne daß man gleich das Alu ablöst. }}}
    5354
    5455= Issues, Problems, Upgrade plans (should be moved to a ticket list one day) =
    5556[[CollapsibleStart]]
    56 * pointing model of the telescope
    57   automatic defocus (change for each filter)
    58   pointing model is off by 15-20min
    59 * tracking issue (gets stuck, or jumps once in a while)
    60 * turbo pump:
    61   * Das Problem war die defekte Anzeige der Turbopumpe. Meistens funktioniert die automatische Umschaltung der Anzeigebereiche nicht und sehr häufig bleibt die Nadel einfach irgendwo stehen, obwohl der Druck noch weiter absinkt. Die Pumpe an sich ist in Ordnung, lediglich der Druckmesser sollte gegen ein neues Gerät ersetzt werden.
    62     * Solved. Werner kindly installed a new digital display which should serve our needs.
    63 * cleaning of the camera (needs to be opened and thoroughly cleaned)
    64 * have a maintenance plan for camera and telescope at some point
    65 * have a basic operations manual, in addition to the [https://svn.mpia.de/trac/gulli/king/wiki/WikiStart/Observing#no2 FAQs]
    66 * have a automated dome operation
    67   * requires motor encoders to know where you are
    68   * the telescope uses a German mount with the azimuth axis off-centered with respect to the dome, which requires some differential tracking between telescope and dome
    69 * computer:
    70   * remove ''hormuth@mpia'' account and related data
    71   * TRAC admin
    72     * introduce the moderator list with write permissions (should have four groups of users: anonymous, autheticated, moderator, admin / superuser)
    73     * update the general KING user list
    74    
    75   * enable TRAC-blog as lab diary, by posting some basic how-to-use somewhere on these pages
    76   * enable NX-access / integration of ''king'' in the MPIA NX environment
    77   * setup powerfolder; not sure what this referred to probably I meant SVN integration
    78 * have a webcam (on TRAC) from inside the dome, and maybe link other cams from outside
    79   * since it runs 24/7, the webcam should NOT emit any light (no LEDs etc), and ideally it sends via WLAN, so we only need a power plug
    80 * go solar
     57
     58 * pointing model of the telescope automatic defocus (change for each filter) pointing model is off by 15-20min
     59 * tracking issue (gets stuck, or jumps once in a while)
     60 * turbo pump:
     61   * Das Problem war die defekte Anzeige der Turbopumpe. Meistens funktioniert die automatische Umschaltung der Anzeigebereiche nicht und sehr häufig bleibt die Nadel einfach irgendwo stehen, obwohl der Druck noch weiter absinkt. Die Pumpe an sich ist in Ordnung, lediglich der Druckmesser sollte gegen ein neues Gerät ersetzt werden.
     62     * Solved. Werner kindly installed a new digital display which should serve our needs.
     63 * cleaning of the camera (needs to be opened and thoroughly cleaned)
     64 * have a maintenance plan for camera and telescope at some point
     65 * have a basic operations manual, in addition to the [https://svn.mpia.de/trac/gulli/king/wiki/WikiStart/Observing#no2 FAQs]
     66 * have a automated dome operation
     67   * requires motor encoders to know where you are
     68   * the telescope uses a German mount with the azimuth axis off-centered with respect to the dome, which requires some differential tracking between telescope and dome
     69 * computer:
     70   * remove ''hormuth@mpia'' account and related data
     71   * TRAC admin
     72     * introduce the moderator list with write permissions (should have four groups of users: anonymous, autheticated, moderator, admin / superuser)
     73     * update the general KING user list
     74
     75 * enable TRAC-blog as lab diary, by posting some basic how-to-use somewhere on these pages
     76 * enable NX-access / integration of ''king'' in the MPIA NX environment
     77 * setup powerfolder; not sure what this referred to probably I meant SVN integration
     78 * have a webcam (on TRAC) from inside the dome, and maybe link other cams from outside
     79   * since it runs 24/7, the webcam should NOT emit any light (no LEDs etc), and ideally it sends via WLAN, so we only need a power plug
     80 * go solar
    8181
    8282[[CollapsibleEnd]]
    8383
    84 = ticket administration
     84= ticket administration =
    8585https://svn.mpia.de/trac/gulli/king/report