Changes between Version 76 and Version 77 of AstroTechTalk

Timestamp:

12 Mar 2015, 14:11:20 (9 years ago)

Author:

Ralph Hofferbert

Comment:

--

AstroTechTalk

@@ -35 +35 @@
 || '''06.03.2015''' || '''Uwe Graser''' || '''MATISSE - the successor of MIDI at VLTI'''[[BR]][[BR]]During these days, MIDI gets dismounted at Paranal to make room for the two new "2nd generation VLTI instruments" GRAVITY und MATISSE. MIDI was in use at VLTI between December 2002 (installation) and February 2015. In this talk its successor, MATISSE, will be presented.[[BR]][[BR]]The features of MATISSE (for tongue-twister-enthusiasts: Multi-Aperture  Mid-Infrared         Spectroscopic Experiment) can be easily deduced from its name: Multi-Aperture means several telescopes (at least 2, maximum 4), Mid-infrared is clear anyway ("the wavelength range, in which we mostly emit radiation"), and Spectroscopic is something you don't have to explain at an institute like this.[[BR]][[BR]]More details of MATISSE, like its function (comprising a short intermezzo to "interferometry for dummies") and the composition of the instrument, MPIA's contribution and a bit of side-features like schedule and consortium structure will be briefly presented in this talk as well.[[BR]][[BR]]Talk: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2015-03-06_MATISSE.pdf Slides: English, German][[BR]]Questions: German, English ||
 || '''13.03.2015''' || '''Silvia Scheithauer''' || '''The Mid-Infrared Instrument (MIRI) [[BR]]aboard the James Webb Space  Telescope'''[[BR]] [[BR]]The James Webb Space Telescope shall be launched in 2018. Aboard it will  have four scientific instruments: two of them - MIRI and NIRSpec - being  European deliveries with contributions from MPIA. MIRI has been built by  a European science consortium involving more than a dozen scientific  institutes - among them MPIA. [[BR]][[BR]]MIRI includes an imager and two spectrometers capable of doing imaging,  coronography as well as spectroscopy. MPIA has been responsible for the filter wheel and the two  dichroic-grating wheel mechanisms of the instrument. They have been  designed, partly manufactured and tested at MPIA with great involvements  of the design engineering department, the mechanical and the electronics workshops, respectively. The  scientific performance has been tested extensively in 2011 in the UK by  the MIRI test team.[[BR]] [[BR]]MIRI has been delivered to NASA in 2012, since then the test team is  supporting the cryo-test campaigns at the Goddard Space Flight Center,  is preparing the calibration pipeline and science cases. The talk will give an overview of MIRI's history at MPIA, its  scientific performance and the future till the launch in 2018. [[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
-|| '''20.03.2015''' || '''Michael Lehmitz''' || '''PLC control for MATISSE'''[[BR]][[BR]]Before the use of PLCs ("Programmable Logic Controllers") control tasks for scientific instruments were usually implemented with the help of discrete contact switches, relays and other electro-mechanical components in conjunction with a complex wiring. With increasing complexity of the scientific instruments and their infratructure also the demands with respect to the required control systems and their flexibility have grown.[[BR]][[BR]]For MATISSE, the "Multi-!AperTure mid-Infrared !SpectroScopic  Experiment" for the Very Large Telescope, MPIA applied for the first time PLCs for supervising the instrument's two cryogenic systems, for controlling its calibration light sources and for reading-out sensors on the optical bench.  [[BR]][[BR]]In this talk Michael Lehmitz gives an introduction to PLC-based control technology and presents, via a live-demo, the performance of the MATISSE system.[[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
+|| 20.03.2015 || -- || No talk (LN consortium meeting) ||
 || 27.03.2015 || Tom Herbst [[BR]]Patrick Fopp || LBT all-sky camera ||
+|| 03.04.2015 || -- || Good Friday ||
+|| 10.04.2015 || -- || No talk (Easter break) ||
+|| '''17.04.2015''' || '''Michael Lehmitz''' || '''PLC control for MATISSE'''[[BR]][[BR]]Before the use of PLCs  ("Programmable Logic Controllers") control tasks for scientific  instruments were usually implemented with the help of discrete contact  switches, relays and other electro-mechanical components in conjunction  with a complex wiring. With increasing complexity of the scientific  instruments and their infratructure also the demands with respect to the  required control systems and their flexibility have grown.[[BR]][[BR]]For MATISSE, the "Multi-!AperTure mid-Infrared !SpectroScopic   Experiment" for the Very Large Telescope, MPIA applied for the first  time PLCs for supervising the instrument's two cryogenic systems, for  controlling its calibration light sources and for reading-out sensors on  the optical bench.  [[BR]][[BR]]In this talk Michael Lehmitz gives an  introduction to PLC-based control technology and presents, via a  live-demo, the performance of the MATISSE system.[[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
 
 '''Preview:'''
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-03.04.2015 Good Friday
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-10.04.2015 No talk (Easter break)
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-17.04.2015
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-24.04.2015
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-08.05.2015
 
 15.05.2015 4MOST (M. Bergemann, W. Gaessler)