| COMPUTARIUM LCD |
|
| From the Computarium Crew | back |
| ASSELBORN, Jean-Claude (+ 2011) |
Konrad
ZUSE et l'invention de l'ordinateur ZUSE et la racine carrée (Zuse and the computing of the square root) |
Powerpoint
presentation for the Computarium, Diekirch, 26 Oct. 2010. In French. Supplementary part showing the solution of the square root by Zuse. |
| L'art du secret: Part 1, Part 2, Part 3 (unfinished) | 3 first parts
of a 5 part lecture series prepared by Jean-Claude
Asselborn. These conferences could not be held due to his illness. Powerpoint. Mixed French and English. |
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| BAUMANN, Claude | Communication with SD cards | Lab report (24 pages, version 1.0, 13 Feb 2023) how to read and write an SD card from a PIC-type microcontroller or a Raspberry Pico (with microPython). Uses PICLab and Labview. This is heavy stuff! |
| BAUMANN, Claude | A simple and fast look-up table method to compute the exp(x) and ln(x) functions | Paper (14
pages) written in 2004; downloaded as PDF from EBIN (original
link) after online conversion to PDF. This new algorithm was developed
to be used in programming the LEGO RCX controller using Robolab. It uses a
lookup table to make fast calculations of ln(x) and exp(x) compatible with
the IEEE754 single precision standard. This is heavy mathematical stuff! |
| BAUMANN, Claude | Das Kalman Filter wird 50 | Article in the
Luxemburger Wort (18 March 2010); co-author Francis Massen. PDF. In German |
| BAUMANN, Claude | EUREKA! Problem Solving with LEGO Robotics (2013) | 500 page book
written by Claude Baumann and published by NTS (National Technology and
Science Press) in 2013. ISBN 978-1934891-13-1. Click for a view of the cover and back |
| BAUMANN, Claude (co-authors Chris ROGERS, Francis MASSEN)
|
Dynamic
binaural sound localization based on variations of interaural time delays
and system rotations
(JASA, 138 (2), Aug. 2015) |
Claude Baumann,
a Computarium crew member, has published an outstanding paper in JASA, the
Journal of the Acoustical Society of America. The co-authors are Chris
Rogers (Tuft University, USA) and Francis Massen (Computarium). The paper gives new insights on how to locate a sound source in space, using calculations performed on the interaural delay-time. The PDF is here. [Copyright 2015 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in JASA, vol. 138 (2), August 2015 and may be found at DOI: 10.1121/1.4923448 ]
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| BAUMANN, Claude |
Bringing back
to life a COLINBUS Profiler CNC_Router 29 Mar 2021 |
A very
extensive 62-pages report of the restoration of a Colinbus CNC profiler, an
heritage of our late member
Jean
Mootz.
This is as a major research project by Computarium
member Claude Baumann and also an original endeavor to combine modern
stepper motor drivers, Arduino and self- developed electronic interface to
revive a dead machine (which many would have thought being unsalvageable)
which was sold in 2009 by the
Elektor magazine as a kit. 46 pictures or schemata.
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| BAUMANN, Claude
(co-author Francis MASSEN) |
Lab report of the TTY converter (version 1.1, 02 November 2022)) | A very extensive, complete and long report on the design, creation and programming of the TTY/USB converter for communicating between a vintage ASR-32 TELEX and a PC. This is heavy PIC and Labview stuff! |
| BAUMANN Claude | Lab report on the PIC signal generator (version 1.0, 05 December 2022) | A report on the
construction of a very small battery-powered signal generator, to be used in
a demo of the HP16500A logic analyzer. |
| MASSEN, Francis |
Analog Computers
(.ppt) (pdf version)
Handling Vintage Media (11-Dec-2021) |
Conference at the LCD held the 28th April 2017. Link to
the Powerpoint presentation covering mechanical and electronic analog
computers and calculators. Click
here for the flyer.
|
Francis Massen
last edited: 13 Feb 2023
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