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HPT

HPT. Roland Lemke Thomas Jürges (NRAO) Martin Paegert. Introduction. History Program inception 1986 Feasibility studies 1988 fund of 8M DM by the Ministry of Economics, Trade and Technology, NRW 1989 Poltical problems, between AIRUB and industry and reunifcation 1992

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HPT

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  1. HPT Roland Lemke Thomas Jürges (NRAO) Martin Paegert Astronomisches Institut der Ruhr-Universität Bochum

  2. Introduction • History • Program inception 1986 • Feasibility studies 1988 • fund of 8M DM by the Ministry of Economics, Trade and Technology, NRW 1989 • Poltical problems, between AIRUB and industry and reunifcation 1992 • Several attempts meanwhile

  3. History (cont.) • Ministry of School, Education, Science and Research (MSWWF), NRW grants new funds 1997 • HPT comes to Bochum 1999 • Replacing of the old driving system 2001 • Replacing of the old software system 2002 • First pointing tests 2003 • Shipment to Chile June 2005

  4. Technical concept • direct-motor driven roller screw, accuracy 10 nm • weight of a single leg is about 200 kg • Optical configuration • 1.5m primary mirror • Focal ratio f/D = 2.5 • Field rotation 45 deg

  5. M1 • 55mmthin meniscus, weight 120kg, 1.2 t/sqm VLT 10 t/sqm • an actively controlled primary which consists of a thin Zerodur meniscus that is permanently fixed to a CFRP grid structure

  6. M2 a secondary whose support legs are also designed as a Hexapod to compensate for gravitational deformation

  7. Code generation • Automatic generation of an Component from a given IDL, including • *.h and *.cpp files • Makefile • *.body function body • *.xsd and *.xml files for CDB • QT GUI talk tomorrow by Martin Paegert

  8. Software

  9. CCD software • Different types of camera hardware but only one ACS module • Camera factory class • One interface class Class structure:

  10. CCD: class structure

  11. ACS in CCD´s real life: What is in use now? • Monitoring possibilities • Triggering of applications • Data transfer via sequences (later via Notification Channel or bulk data channel) • 1 Module – 3 CCD camera manufacturer (+ 1 simulation) – 4 different configurations

  12. Next steps • After infrastructural problems are solved, assembly of telescope and electronics • Commissioning • Science verification

  13. The usage of ACS • Easy to integrate peripherials (GPS clocks, Game pads, WebCams, CCDs, Motor control units, DIO and AIO boards) • Easy to develop GUIs with Python and Qt • MS-Windows drivers • Directly ported to Linux • Using an ACS Version ported to Cygwin

  14. Conclusions • ACS does what is required • Sharing code among projects • Discussions between the groups using ACS

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