european solar telescope design study

Freiburg, 17-20 May 2011 EST Design Study. End of Phase-III Meeting

European Solar Telescope Design Study

End of Phase III MeetingWP 10300

Instrument Control System

Cosentino, R., Romano, P.Belluso, M., Comparato, M., Giorgi, F., Grivel, C., Laforgue, D., Paez, E.

Freiburg, 17-20 May 2011 EST Design Study. End of Phase-III Meeting 2

Instrument Control Software Overview

The instruments are designed and constructed to be used simultaneously and synchronized.

There will be also a deep interaction among the ICS and some external sub-system developed by other sub-WPs


EST ICS architecture

Two options are available to send a command to ICS. In the former case an already defined configuration, i.e., list of commands and parameters, can be send to the ICS through the sequencer. In the latter case a generic user can select a configuration by the GUI. Moreover, the user can download a complete configuration and can use the GUI to modify some parameters or part of the setup.


ICS coordinator classes


Broad Band Imager


DevicesNumbe

r of devices

Type of movement Comments

Mechanism to insert appropriate optical

targets1 TBD

TBD if it will be common for all the instruments

Linear stage to switch between the two

different resolution modes

2 2 positionsMechanism: linear stage

TBC

Focus system 1or 2 LinearTBD, along the optical

axis

Filter wheels or linear stages

2 TBDThe number of slots is

TBD

Instrument sensors TBD N/A

hw controlled; temperature monitoring;environment monitoring

(TBD at ICS level?)

Filter electronic device

TBD N/Ahw controlled;

temperature monitoring

Linear stage for out of focus detector

1 Linear Along the optical axis

Detector controller 3 N/A 1 controller per detector

Crossed polarizer drive

1 or 2 rotation

1 in continuum sub channel and 1 (TBC) in

“narrow band” sub channel

Broad Band Imager


BB class diagram


BB use case


Narrow Band tunable filter Spectropolarimetr

DevicesNumber of

devicesType of

movement Comments

Stop wheel 1 rotational with 4 slots

Filter wheel for filtergram channel

1 rotational the number of slots is TBD

Filter wheel for continuum channel

1 rotational the number of slots is TBD

Pre filter tilt device 2 tilt tuning purpose

Focus drive 2 linearfor focusing purposes; with 2 linear stages

Linear stage for laser channel 1 linearto insert and remove the laser flip mirror

ICOS / controller of each FP 3 piezo3 actuators and 5 air capacitors; hw controlled and monitoring

Instrument sensors TBD N/Ahw controlled; temperature monitoring

Modulator package 2 linearto remove and insert the modulator and the Wollaston prism

Linear stage for etalons 3 linearto remove and insert an individual etalon

Tilt device for etalons 3 tilt to tilt an individual etalon

Tilt devices for collimator mirrors

2 tilt for collimation purposes

High precision rotation table 1 rotational for alignment purposes

Crossed polarizer drive 1 rotational to adjust the light level

Detector controller 2 N/A 1 controller per detector (TBC)

Linear stage for out of focus detector (TBC)

1 Linear Along the optical axis


NB class diagram


NB use case


Grating Spectropolarimeter


SP class diagram


GS use case


Deployment diagram


Plan for the next future

• Detailed definition of classes and methods

• Implementation of instrument simulator

• Development of instrument control system in “simulation mode” (prototyping)

• Test of the communication software

• Final design of the node deployment

• Reliability and failure analysis of critical parts

• Development of instrument user interfaces (GUI)

european solar telescope design study

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