Brainfeedback ® Hardware

The latest innovative technology in order to reach the highest possible reliability. This makes us possible to build smart, lightweight, efficient and safe systems with a high quality of signal processing.

Real time impedance measuring combined with FGT (Fast Gabor Transform) signal processing ensures objective and precise results. It also escalates therapeutic effects. (If you prefer classic Fast Fourier Transform, one mouse click can change it.)

  • Electrodes watching
  • Battery charge online measure
  • Portable amplifier (pocket size / weight), notebook adjusted

Supply: 3 cells 1,5 V (AA size) Battery duty duration: 700 hours

SCANNING UNIT TECHNICAL PARAMETERS:

  • Number of channels (optional): 2 / 4 / 8 / 20 / 24 / 32 / 64 / 128, separate, differential
  • Frequency Band Width: (+0 -1 dB) 500 Hz
  • Analog Time Constant: 1s +- 5 % (possible up to 10 s)
  • Maximum AC Input Range: +- 2 mV
  • Maximum DC Input Range: +- 140 mV
  • Equivalent Referred Input Noise: 2uV p-p in 0.16 – 100 Hz band *
  • Voltage Measurement Accuracy: +- 2 %
  • Time Measurement Accuracy: +- 0.1 %
  • Internaln Analog Sample Rate: 4 096 Hz per channel
  • Saved Data Sample Rate: 128 – 1024 Hz per channel
  • High Frequency Reaction: from 525 Hz to 4 kHz: 115 dB / from 4 kHz: 50 dB
  • Common Mode Rejection Ratio: 120 dB (in frequency band 0 – 60 Hz) **
  • Input Differential Impedance: 100 GOhm // 35 pF
  • Input Skin Impedance Range: 0 – 99 kOhm
  • Measured Impedance Accuracy: +- 10 %
  • Measurable Transition Impedance: 1 – 50 kOhm

(*) Referred to the average electrode – skin impedance max. 10 kOhm
(**) With difference of input impedance’s max. 10 kOhm.
CMRR sufficient for battery run equipment:
Ground electrode connected to a person measures its potential to the environment perfectly