S.W.I.M. to see and photograph rotating magnetic field in motors

Muse mind-over-motor with brainwave-controlled wheelchair

Calibration:

Other motors:

See also MoTEAL and http://wearcam.org/swim/MoTEAL_DerekLam/.

Linear SWIM for typical zero-volt ground positive-going-only signals like 0 to 3.3 volts has a simple 3.3 volt ref, e.g. a blue LED and diode works out to about this much, as Kyle likes to do:

However, for rotary SWIM, motors, etc., we often have a signal to be referenced such as to be able to swing positive or negative, and thus center the lower and upper references with the lower reference not necessarily to ground, as shown in some of the research. See below.

Research papers on rotary SWIM:

• Moveillance: Visualizing Electric Machines, Steve Mann; Danson Evan Garcia; Phillip V. Do; Derek Lam; Pete Scourboutakos
• Understanding Electric Machines with S.W.I.M. (shows wiring diagram for 100 LED SWIM)
  
  
  
• EncephalogamesTM (Brain/Mind Games): Inclusive health and wellbeing for people of all abilities, Steve Mann, Diego Defaz, Tamer Abdulazim, Derek Lam, Mike Alford, Jeremy Stairs, Cayden Pierce, Christina Mann, IEEE GEM2019
• Electrical Engineering Design with the Subconscious Mind, Steve Mann; Phillip V. Do; Danson Evan Garcia; Jesse Hernandez; Humza Khokhar

Linear SWIM for powertrenography:
Powertrain photography and visualization using SWIM... (submitted version directly compiled from Overleaf LaTeX)

See also, this "SWIMulator" (SWIM simulator): https://www.desmos.com/calculator/wfb5149tff

Simplified version, single phase, not animated: https://www.desmos.com/calculator/1ov41iay7t