asteroza + transmission   160

R3E | R3E
Skateboard platform using a highly integrated single motor/transmission/suspension/steering/wheel module. Notably NOT using a hub motor, and they have a stupidly compact small transmission as well.
compact  transmission  integrated  electric  wheel  automotive  transportation  research  technology  steering  skateboard  EV 
10 weeks ago by asteroza
Storing data in music | ETH Zurich
Embedding small data in music, preferably with lots of dominant notes in 9.1-10KHz range, so pop music. Might be useful for data smuggling in the open, if you are within 24m and can stand 400 baud...
data  smuggling  low  tone  audio  modem  communication  transmission  embed  music  sound  dominant  smartphone  OFDM  differential  acoustic  research  technology  security  hacking  pentesting 
10 weeks ago by asteroza
Electric Sky
Some sort of wizardry allows new highly spare arrays for RF power beaming, for medium ranges (looking at 1000km or less), which causes beam refocusing. All solid state, looking at 915MHz UHF.
external  power  beaming  wireless  transmission  transfer  space  propulsion  RF  UHF  whisper  refocus  sparse  array 
april 2019 by asteroza
Power generator using cycling waste heat hot water/cooling water to drive a shape memory alloy wire actuator piston, which drives a hydraulic transmission and power generator. Made a discovery for high cycle ninitol alloy (10 million versus 1 million cycles for regular NT wire) to make the linear actuator work for industrial applications. Uses direct impingement of hot water and cold water to cycle the actuator though...
nitinol  shape  memory  metal  alloy  materials  science  research  technology  wasteheat  power  generator  linear  actuator  piston  hydraulic  transmission  drive  scavenging  harvesting  high  cycle  fatigue  resistance 
march 2019 by asteroza
Techology & Fluidification | Ferox Advanced Vehicles
Some sort of new hydraulic drive/transmission system, using 95% water and at a lot lower pressure than conventional hydraulics.
water  working  fluid  hydraulic  drive  transmission  automotive  research  technology  in-wheel  motor 
december 2018 by asteroza
Fleet Satellite Communications System - Wikipedia
So brazilian pirate radio is using these, wonder if the prepper/HAM crowd is as well
satcom  UHF  EHF  unauthenticated  microwave  transmission  repeater  transponder  GEO  satellite  satcomms  survivalist  communication 
september 2018 by asteroza
Optonicus – Intelligent Optical Systems
Now doing lasercomm, laser power beaming, and laser weapons
laser  Wireless  power  transmission 
september 2018 by asteroza
Protecting the power grid: Advanced plasma switch for more efficient transmission -- ScienceDaily
low pressure, high voltage helium gas breakdown behavior for a plasma switch demonstrates 100 KV, might be able to do 300KV
inverter  high  voltage  DC  AC  conversion  plasma  switch  physics  research  technology  electricity  long  distance  transmission  hardware  electronics 
august 2018 by asteroza
Advanced Hybrid
some sort of magnetic gearbox, so effectively a CVT?
magnetic  gearbox  CVT  transmission 
may 2018 by asteroza
GLOBAL ENERGY TRANSMISSION – Making our wireless energy transmission breakthrough a reality
Some sort of resonant coupling type wireless power transmission, relying on a long-ish receiver antenna to allow a 20m charge range?
magnetic  resonant  resonance  coupling  wireless  power  transmission  WPT  UAV  drone  recharger  charger  remote  hardware  electronics  devices 
march 2018 by asteroza
NASA Technical Reports Server (NTRS) - Torque Transmission Device at Zero Leakage
Oddball mechanical torque transmission through a sealed wall, using elastic deformation of a tube, rather than a magnetic gear or similar EMF coupling
NASA  sealed  mechanical  torque  transmission  through  wall 
march 2018 by asteroza
Transactions of the Symposium on Space Nuclear Power Systems, (5th) Held at Albuquerque, New Mexico on January 11, 1988. | National Technical Reports Library - NTIS
The PDF contains info on wheelguns, giant counterrotating flywheel hoops in space to supply power to SDI weapons, mainly railguns/particle accelerator cannons/free electron lasers that need huge amounts of power right now. Appears to expect to be trickle charged over time by a small space nuclear reactor (SNAP? atomic teakettle?). Also has an interesting microwave power beaming scenario from a nuke in mars synchronous orbit to a ground rover, high performance radiators, including a fabric heatpipe radiator, a curie point magnetic liquid droplet radiator, and other power conversion concepts.
SDI  wheelgun  space  counterrotating  flywheel  hoop  energy  storage  power  generator  FEL  free  electron  laser  railgun  neutraal  particle  accelerator  cannon  military  WPT  microwave  transmission  mars  MSO  rectenna  rotating  loop  pulsed  fabric  radiator  heat  thermal  management 
march 2018 by asteroza
Inception Drive: A Compact, Infinitely Variable Transmission for Robotics - IEEE Spectrum
Some sort of mix between a belt type CVT and planetary gear, with precession? From the designer of the abacus drive and the harmonic drive (strain wave).
mechanics  mechanism  transmission  engineering  torque  convert  CVT  infinitely  variable  IVT  robotics  hardware 
september 2017 by asteroza
Japan Renewable Energy Foundation
Softbank, via this JREF foundation, is pushing for an Asia Super Grid Plan, to pump power between china/korea/russia/japan.
japan  renewable  energy  foudnation  industry  advocacy  asia  supergrid  electricity  transmission  network  Delicious 
september 2016 by asteroza
ABB develops complete system solution for 1,100 kV HVDC power transmission
Wow, 1100kV HVDC long range power transmission is a reality now, though terrestrial at the moment...
HVDC  high  voltage  long  distance  transmission  power  line  ABB  UHVDC  DC  Delicious 
september 2014 by asteroza
Image Sensor for Free-Space Optical Communication and Imaging
Interesting hybrid sensor, with dedicated pixels for imaging purposes and optical communication receiving. Separate LED transmitters complete the optical communication loop, though I suppose the next step is embedding the LED laser in the sensor as well, much like those LCD displays with embedded imaging sensors.
Toyota  research  technology  hybrid  image  imaging  sensor  optical  communication  receiver  transmission  free  space  visible  Delicious 
july 2014 by asteroza
Marked ghost imaging
I wonder if this can be applied to an all digital information scenario (no image or imaging sensor per se)? The usage of sending dummy data is workable, but is this a special type of keying/encryption setup or does this already exist in classical cryptography?
market  ghost  imaging  transmission  information  security  encryption  cryptography  research  technology  optical  network  encoding  Delicious 
july 2014 by asteroza
Magnetic Gears | Technology | Magnomatics
Interesting contactless magnetic gear transmission (for low ratios anyways)
non-contact  contactless  gear  transmission  magnetic  Delicious 
april 2014 by asteroza
Laser Demonstration Reveals Bright Future for Space Communication | NASA
LLCD had higher performance than expected, with thin cloud penetration capability, and low angle support (meaning thick atmospheric turbulence layer wasn't as much of a problem as expected) down to 4 degrees above the horizon. Handoffs between ground stations went well too (though wouldn't the use of a single telescope mean you have a cutoff period as you track to the other ground station though?)
NASA  LADEE  LLCD  space  laser  communication  transmission  research  technology  Delicious 
january 2014 by asteroza
New Wave Energy UK - Home
Um, a PV panel toting quadcopter that beams down power? What could possibly go wrong...
solar  PV  power  generator  electric  quadcopter  helicopter  drone  UAV  WPT  wireless  transmission  green  Delicious 
november 2013 by asteroza
Disney Research » Ishin-Den-Shin: Transmitting Sound Through Touch
Interesting, a physical contact type of telepathy almost. Unfortunately, the e-field can probably be picked up at a distance, if not the actual vibration occurring at the earlobe itself with a directional mic, so no anti-NSA gear for you.
field  touch  audio  sound  electrostatic  disney  transmission  research  modulated  Delicious 
october 2013 by asteroza
Cota, Real wireless power
WPT using ISM 2.4GHz band magnetic resonance techniques.
wireless  resonance  2.4GHz  WPT  power  magnetic  transmission  Delicious 
september 2013 by asteroza
Press Release, A. James Clark School of Engineering, University of Maryland
Interesting research into using small magnetic fields for formation flight, plus a secondary thing to try wireless power transmission to recharge mag field formation fliers.
SPHERES  resonant  transfer  technology  ISS  WPT  RINGS  space  research  transmission  propulsion  inductive  field  flying  wireless  system  near  electromagnetic  NASA  power  propellantless  generation  EMFF  formation  Delicious 
august 2013 by asteroza
Kymeta | Connected. Anywhere.
Using digitally switched resonators and a metamaterial surface, you gain the abilities of phased array without all the associated phased array parts, and solid state to boot.
satellite  technology  surface  RF  hardware  directional  subwavelength  communication  metamaterial  state  space  research  transmission  antenna  solid  forming  steering  active  beam  resonator  devices  electronics  Delicious 
august 2013 by asteroza
Audio modem communications SDK, to use the speaker/mic on smartphones as an auxiliary low data rate transmission channel, as an alternative to NFC, around 50-100Kbps.
app  audio  android  data  alternative  transmission  SDK  NearBytes  software  iPhone  rate  sound  NFC  low  channel  iOS  modem 
august 2013 by asteroza
IEEE Proceedings for June 2013, lots of SSP wireless power transmission stuff
RF  technology  2013  IEEE  june  WPT  microwave  solar  space  transmission  research  wireless  SPS  SSP  power  Delicious 
july 2013 by asteroza
PowerPoint Presentation - Nebel.pdf
Interesting DC-DC transformer concept, based on the linear variant of a MHD dynamo current drive, from one of the researchers behind the Polywell fusion reactor research. Intended for HVDC lines greater than 400 miles.
hardware  plasma  technology  conversion  dynamo  physics  HVDC  DC  transformer  research  transmission  MHD  Delicious 
april 2013 by asteroza
Low-tech Magazine: The Mechanical Transmission of Power (1): Stangenkunst
Pre-steampunk (woodpunk? ironpunk? probably not stonepunk...) mechanical motion systems for transmitting power over long distances.
technology  vintage  lowtech  retro  power  mechanical  engineering  transmission  Stangenkunst  Delicious 
february 2013 by asteroza
Govt aims to triple wind power : Business : DAILY YOMIURI ONLINE (The Daily Yomiuri)
Oh that's sleazy, forcing the wind power generators to basically underwrite half the cost of the transmission system upgrades to send power south from the cold windy northern prefectures that the local utilities and conventional power producers were totally unwilling to put up with the cost of putting in such transmission networks themselves. The interesting takeaway is the planned grid energy storage at major substations to even out wind power production. Sine the wind companies are forced to make their own independent transmission networks, I wonder if they will charge penalty fees on the local utilities to use the network, since they forced the capex onto the wind companies.
wind  distance  japan  green  grid  power  long  transmission  network  energy  storage  Delicious 
february 2013 by asteroza
Connectify Dispatch - Connectify
A new heterogeneous modern version of the old shotgun modem trick, to increase aggregate bandwidth.
bonding  link  transmission  communication  software  aggregator  bandwidth  modem  shotgun  heterogeneous  Delicious 
december 2012 by asteroza
New Wireless Power Transmission Method Improves Efficiency of Entire System -- Tech-On!
Using some sort of high speed switching of DC, they avoid inverter/rectifier losses otherwise incurred by wireless power transmission systems that rely on AC transmission methods, when connected to end user devices that normally use DC current, such as most consumer electronics.
technology  research  physics  japan  transmission  power  wireless  resonance  current  direct  DC  Delicious 
december 2012 by asteroza
RIKEN | Press Release | 2012 | A New Route to Dissipationless Electronics
Interesting work on a actual magnetic topological insulator. In theory this should allow reductions in line transmission losses. But this needs magnetic materials, and currently requires cryogenic cooling, so on the face of it, it isn't much better than current high temperature superconductors. Might be more applicable to chip scale stuff, especially if they can get the working temperature up.
dirac  fermion  ferromagnetism  magnetic  topological  insulator  quantum  anomalous  hall  effect  materials  science  research  technology  power  transmission  energy  electricity  current  Delicious 
august 2012 by asteroza
Fraunhofer Announces New Wireless Power Transmission Technology -- Tech-On!
Some kind of bizarre wide gap motor/transmission setup utilizing magnetic resonance coupling to physically rotate a remote magnet. I wonder if you could embed this technique in a vacuum flywheel to avoid a rotating shaft seal?
Fraunhofer  wireless  power  transmission  mechanical  magnet  rotation  magnetic  resonance  coupling  Delicious 
april 2012 by asteroza
Encoding many channels on the same frequency through radio vorticity: first experimental test
New trick of adding vortex twist rather than traditional polarization to a signal to boost encoding for a single frequency. The requirement for what appears to be a directional helicoidal parabolic antenna ( does this mean the antenna needs to be a few wavelengths in depth?) means no love for mobile omnidirectional antennas though.
radio  vorticity  vortex  twisted  transmission  helical  OAM  SAM  polarization  encoding  helicoidal  parabolic  antenna  physics  EM  EMF  research  Delicious 
march 2012 by asteroza
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