Neurosoft CloudEEG, Техническое руководство

Страница: 7 / 44

Description and Operation
7
Table 1. Continued
Parameters Values
Sensitivity 1–1000 µV/mm
(step 1 µV/mm)
Ratio error of sensitivity within ±5%
Sweep speed at EEG recording 3–960 mm/s (step 1 mm/s)
Sweep speed at EP recording 5, 10, 20, 50, 100, 200,
500 ms/div.
Ratio error of sweep speed within ±2%
High pass filter 0.05–10 Hz (step 0.01 Hz)
Low pass filter 5–200 Hz (step 0.1 Hz)
Bandpass flatness in range from 0.5 up to 60 Hz from –10 up to +5%
Suppression ratio of power frequency by notch filter not less than 40 dB
Common-mode rejection not less than 110 dB
Input noise level within 0.5-200 Hz (rms value) not more than 2 µV
(not more than 0.3 µV)
Input impedance not less than 400 M
Ω
Patient leakage current not more than 50 nA
Polygraphic Channels
Number of channels 1/4**
Input range 0.2–100 mV
Ratio error of voltage measurement in the range:
·
from 200 up to 500 µV
·
from 0.5 up to 100 mV
within ±15%
within ±7%
Sensitivity 0.001, 0.002, 0.005, 0.007,
0.01, 0.02, 0.05, 0.07, 0.1,
0.2, 0.5 mV/mm
High pass filter 0.05, 0.1, 0.2, 0.5, 0.7, 1.5, 2,
5, 10 Hz
Low pass filter 5, 10, 15, 35, 75, 100, 150,
200 Hz
Bandpass flatness in the range:
·
from 0.5 up to 200 Hz
·
from 0.05 up to 0.5 Hz and from 200 up to 250 Hz
from –10 up to +5%
from –30 up to +5%
Suppression ratio of power frequency by notch filter not less than 40 dB
Input noise level within 0.05-200 Hz not more than 3 µV
Input impedance not less than 400 M
Ω
Patient leakage current not more than 50 nA
Common mode rejection not less than 100 dB