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Our workshop group build a sci-fi electronic drone instrument whose pitch and tone oscillation can be controlled by light, dials and even touch. Final outcome is a six oscillator synth from scratch under the instruction of artist, Sam Underwood.
ILIOS preparing "Symphony for electronics and internal combustion engine vibrations" at Kyriakidis car lab using a WW2, Kübelwagen (Volkswagen's military version of the Beetle). Symphony to be premiered live at the Athens Biennale, June 2009 Photo by Kima
The photographs should be shared only with permission, and in the form they have been uploaded here, with no cropping or further editing, and the watermark must remain in place. Copyright on all these images remains with the photographer, Neil Fellowes
The photographs should be shared only with permission, and in the form they have been uploaded here, with no cropping or further editing, and the watermark must remain in place. Copyright on all these images remains with the photographer, Neil Fellowes
Student Research Symposium
C6. "Diffusion Coupled Chemical Oscillators"
Rumeng Zhang
Illinois Wesleyan University
Recently Lin et al. have reported that the temporal behavior of the oscillating B-R chemical reaction displays an intriguing, small but reproducible, dependence upon the dimensions of the reaction vessel. This suggests that diffusional effects, while small, are not negligible for these fascinating oscillating chemical reactions. That observation has motivated this study, where we have explored diffusionally coupled oscillating B- Z reactions. They were implemented as shallow wells of circular cross section, machined into a thick Teflon sheet, and connected to each other via narrow channels of fixed width but varying lengths, and filled with the appropriate reactants of the B-Z reaction. Video macroscopy is used to record the spatiotemporal patterns that emerge. The videos are imported into Mathematica, where they are analyzed into their R,G,B components, and then exported into Logger Pro for further analysis. We will present our early results, and the methodology being developed to of the analysis.
Photo by Dave Renneke
PROGRAM
1) Luc Ferrari : 36 Enfilades (piano and tape)
2) Peter Adriaansz : Waves (piano, oscillators and 5 e-bows)
3) Michael Pisaro : Fields Have Ears 1 (piano, oscillators and field recordings)
4) Alvin Curran: Endangered Species (piano)
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Spectrum
Reinier van Houdt
The things I would do to own any or all of these props is really something I shouldn't go into in public. Suffice it to say, these are the most magnificent things I've ever had the pleasure of seeing in person. I did manage to pick up a small scale prop, which is probably the closest I'll ever get to owning one of these beauties.
Maze of patchcords in the oscillator 1-4 section. Blue tape surrounds VCO patch points. Basic wave shaper section is surrounded by red tape. VCA patch points have green tape around them
ILIOS live at Centre Octubre (OCCC), 11 March 2009, Valencia, Spain. VIBRA: cicle d'art sonorI i musica experimental organitzat per Octubre i coordinat per Rubén García. Foto: ©PRATS i CAMPS.
ILIOS Symphony n.3 for oscillators and internal combustion engine vibrations,
live at ARTe SONoro, La Casa Encendida, Madrid, 24 April 2010. Photo by Miguel Cazo
The photographs should be shared only with permission, and in the form they have been uploaded here, with no cropping or further editing, and the watermark must remain in place. Copyright on all these images remains with the photographer, Neil Fellowes
PROGRAM
1) Luc Ferrari : 36 Enfilades (piano and tape)
2) Peter Adriaansz : Waves (piano, oscillators and 5 e-bows)
3) Michael Pisaro : Fields Have Ears 1 (piano, oscillators and field recordings)
4) Alvin Curran: Endangered Species (piano)
------------------------
Spectrum
Reinier van Houdt
Astronomical pointing accuracy is a big topic, some BLOGS below.
Some history, "Centrifugal governor to Servomotor" at: www.flickr.com/photos/edhiker/8457417916
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200 inch scope used Vibrating Wire calteches.library.caltech.edu/638/1/ES11.6.1948.pdf pg 16
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Shown above is temperature compensated Crystal Oscillator.
IMG_8294 - Bisque MKS 4000 oscillator
This lilliputian noise machine by Modal Electronics is hiding some serious power. 4 voices, 8 oscillators per voice, duo and polyphonic modes, unison/spread for choral effects, a real-time sequencer, arpeggiator, midi clock syncing, a 16-key touch keyboard… Where did they fit it all? Measuring in at 10″ X 5 1/2″ X 3″, SKULPT doesn’t let…
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"Carcinotron" - backward wave oscillator (BWO), also called backward wave tube, unknown brand
author: Jan Helebrant
license CC0 Public Domain Dedication
Oscillator / multiplier / IPA section.
8036.25 KC xtal
6j5 oscillator
3x 6v6 buffer multipliers
829B IPA.
TRW swap meet 7/30/11
Texas Instruments (TI) MSP430 evaluation board (top); Phase lock loop with required circuit including reference oscillator, voltage controlled oscillator and linear power supplies (middle); various amplifiers and filters (bottom).
The MSP evaluation board was supplied and someone other than myself wrote the controlling application. Someone else designed and built the various amplifiers and filters. I completely designed, etched, populated and tested the PLL board (middle).
WR625G is a gigabit dual-band mesh WIFI router that supports AC 1200 dual-frequency, it has a 2.4g 2X2 and 5G 2X2 omnidirectional multi-band high-gain antenna, and 802.11AC MU-MIMO supports Wave2. The multi-oscillator high-gain omnidirectional antenna has a strong ability to pass through the wall and has a wider coverage, making the already strong signal more powerful, signal coverage is wider and data transmission is smoother. Mu-Mimo multi-device transceiver technology has low latency and stable connection of multiple devices at the same time to ensure a good experience of using multiple devices.
WR625G mesh wifi router is an ad-hoc routing network distributed Mesh router. Mesh WIFI routers with multiple ethernet ports are perfectly matched and work together to eliminate signal dead spots, easily satisfying family scenes such as large flat, duplex, and villa, so that good signals can be achieved everywhere. Wherever you go, there is a good signal automatic switching network, no wiring, support 802.11k/ V protocol, when the device moves between multiple Mesh routes, it can automatically switch to a better Wi-Fi network. The switching process constantly net, the whole house seamless roaming.
Hardware Specification
CharacteristicWR625G-M10
Dimensions166*120*80mm
Interface1*10/100/1000 Base-Tx Ethernet WAN port
2*10/100/1000 Base-Tx Ethernet LAN port
1*DC12V power port
1*Reset port
WIFI Speed2.4G WiFi:2*2 (Speed 300Mbps)
5G WiFi:2*2 (Speed 866.7Mbps)
Frequency2.4G WiFi frequency:2.4GHz～2.4835GHz
5G WiFi frequency:5.150GHz～5.85GHz
Antennabuilt-in 4*5dBi high gain omnidirectional antennas
Wireless Transmit Power2.4GHz:
11b 11Mbps：19dBm；
11g 6Mbps ：20dBm；
11g 54Mbps：17dBm；
11n MCS0-HT20：19dBm；
11n MCS7-HT20：16dBm；
11n MCS0-HT40：19dBm；
11n MCS7-HT40：16dBm
5GHz:
11a 6Mbps ：20dBm；
11a 54Mbps ：17dBm；
11n MCS0-HT20：18dBm；
11n MCS7-HT20：16dBm；
11n MCS0-HT40：18dBm；
11n MCS7-HT40：16dBm；
11ac MCS0-VHT20 ：18dBm；
11ac MCS8-VHT20 ：15dBm；
11ac MCS0-VHT40 ：18dBm；
11ac MCS9-VHT40 ：15dBm；
11ac MCS0-VHT80 ：18dBm；
11ac MCS9-VHT80 ：15dBm；
Receiver Sensitivity2.4GHz:
11b 1Mbps：-96 dBm；
11b 11Mbps：-90 dBm；
11g 6Mbps：-91 dBm；
11g 54Mbps：-75 dBm；
11n MCS7-HT20：-70 dBm；
11n MCS7-HT40：-67 dBm；
5GHz:
11a 6Mbps：-91 dBm；
11a 54Mbps ：-75 dBm；
11n MCS7-HT20：-72 dBm；
11n MCS7-HT40：-69 dBm；
11ac MCS8-VHT20：-65 dBm；
11ac MCS9-VHT40：-60 dBm；
11ac MCS9-VHT80：-58 dBm
CPUMTK CPU MT7621A MIPS dual core 880MHz
ChipsetMT7621+MT7613B+MT7603
Memory128MB DDR3 RAM
Flash16MB
Power supplyDC12V/1A
Operating Temperature-10～50℃
Storage Temperature-40～70℃
Operating Humidity5～95％(non condensation)
Consumption＜10W
CertificationCCC, ROHS
Software Specification
CharacteristicWR625G-M10
Network protocolPPPoE
DHCP client
DHCP server
Internet modePPPoE
Static IP
DHCP
Wireless2.4G，5G
Support national channel selection
Signal strength selection
WI-FI timing function
System serviceALG (IPsec, L2TP, FTP)
Port Mapping
DMZ host
Remote WEB
Telnet server
DDNS
SecurityIP filter
MAC filter
URL filter
Port filter
QoSNetwork speed statistics for connected devices
MAC-based network traffic rate limit
Time synchronizationTime-zone selection
NTP client
Can add candidate NTP server
ManagementSetup Wizard for quick and easy configuration
Management password modification
Route restart, restore factory
Firmware upgrade (retain the original configuration)
System logSystem log