EM Field Head Tracking System specifications: Difference between revisions
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Created page with "==Introduction== The EMF head" |
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==Introduction== | ==Introduction== | ||
The EMF head | The EMF head tracking system consists of field coils in the walls of a booth that create X,Y and Z (or Horizontal, Frontal and Vertical) oscillating EM fields with different frequencies. The fields are sensed by a small pick-up coil mounted on a glasses frame worn by a subject. The signal is analysed and converted into a position of the subjects head relative to his/her default forward looking resting position. | ||
==Parts== | |||
[[EMF Head Tracking System Schematics.png]] %todo | |||
*X, Y and Z Oscillators | |||
*three amplifiers | |||
*three resonance circuits | |||
*three sets of opposite facing wall coils | |||
*pick-up coil | |||
*three lock-in amplifiers | |||
*three ADC's | |||
*recording device (RZ6 or RA16) | |||
Revision as of 13:51, 20 November 2023
Introduction
The EMF head tracking system consists of field coils in the walls of a booth that create X,Y and Z (or Horizontal, Frontal and Vertical) oscillating EM fields with different frequencies. The fields are sensed by a small pick-up coil mounted on a glasses frame worn by a subject. The signal is analysed and converted into a position of the subjects head relative to his/her default forward looking resting position.
Parts
EMF Head Tracking System Schematics.png %todo
- X, Y and Z Oscillators
- three amplifiers
- three resonance circuits
- three sets of opposite facing wall coils
- pick-up coil
- three lock-in amplifiers
- three ADC's
- recording device (RZ6 or RA16)