NGAO Controls Team Kickoff Meeting August 5, 2008 Erik Johansson.

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Presentation transcript:

NGAO Controls Team Kickoff Meeting August 5, 2008 Erik Johansson

2 Controls Team Erik Johansson (Lead) Jimmy Johnson (Technologist) Ed Wetherell (Electronics) Doug Morrison (Software)

3 NGAO Block Diagram

4 Narrow field (left) and wide field (right) LGS asterisms.

5 AO system optical layout perspective view

6

7 AO system optical layout (Zemax)

8 The image rotator and low order “wide” field relay.

9 Laser Guide Star Wavefront Sensor and Interferometer Pickoffs.

10 Narrow Field Relay.

11 The LOWFS assembly

12 LOWFS OSM probe arm.

13 Four configurations of the LOWFS OSM arms.

14 (a)Zemax model of LOWFS probe arm. (b) Probe arm patrol field.

15 Plan view of the LGS object selection  /φ pickoff scheme

16 LGS WFS assembly enclosure

17 Laser facility optical schematic

18 Secondary mirror module and Keck I laser launch telescope.

19 A distributed controls system block diagram of the NGAO system

20 AO controls infrastructure block diagram

21 Motion Control Vibration sensor (3 DOF) Calibration source (4 DOF) Rotator (1 DOF) LGS WFS assembly (61 DOF) Dichroic changer (2 DOF) Interferometer pickoff, pointing and centering (5 DOF) Acquisition camera pickoff, focus (2 DOF) LOWFS assembly (22 DOF) NGS WFS and truth sensor (14 DOF) Visible imager (5 DOF) NIR imager (3 DOF) OSIRIS pickoff (1 DOF) Laser pointing and centering (36 DOF) Laser constellation generator (19 DOF) Other laser motion control (11 DOF)

22 Device Control Detectors –Vibration sensor –LGS WFS cameras (9) –NGS acquisition camera –LOWFS tip-tilt sensors (2) –LOWFS TWFS camera –LOWFS TTFA camera –NGS WFS camera –NGS TWFS camera Mirrors –Woofer DM/TT –Tweeter DM/TT –LOWFS DM/TT (3) –d-IFS DM/TT (6) –UTT mirror (1 or 9) RTC control Environmental control –Power –Temperature –Humidity –Particulates –Instrument glycol or other cooling Laser system control –Diagnostics cameras –Power and environmental control

23 AO systems control hierarchy block diagram

24 Motion control software architecture block diagram

25 Generic device control paradigm block diagram

26 Laser system controls hierarchy block diagram

27 Laser motion control software architecture block diagram

28 Acquisition, guiding and pointing control software architecture block diagram

29 Data server architecture block diagram

30 Science operations tools block diagram

31 Controls WBS Items Systems Engineering –SW Architecture (EJ, JJ, DM) –Controls Systems Architecture (EJ, EW) AO System Design (EW) AO Controls (EJ, EW, DM) Laser (EJ, EW, DM) MCS (EJ, JJ, DLM)

32 Controls Assignments EJ – Overall Lead, Architecture, AO Sequencer JJ – Technologist, Architecture EW – Electronics, Motion Control HW DM – Software, Motion Control SW, AO Sequencer, Device Control DM – Work started 7/1/08 (What’s your status?) JJ – Work started 7/1/08 EW – Work starts 12/08