Charm Engineering Co. Ltd CAI001-BT33 Benutzerhandbuch
CORITICAL ACTIVITY INDEX
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2.1.4 Input Signal Range
Input signal condition
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Amplitude: Increase until output is saturated
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Frequency: 10Hz(EEG), 100Hz(EMG)
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Waveform: Sine wave
Measurement method
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Connect lines as shown in Fig. 2.1 waveform generator and obtain output signal
amplitude with viewer program.
amplitude with viewer program.
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Increase input signal until the output is saturated. Amplitude of output signal at this time
is maximum input signal amplitude.
is maximum input signal amplitude.
Measurement results
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Measurement value: +/-400uVp (EEG); less than +/-550uVp (EMG).
2.1.5 Input Referred Noise
Input signal condition: None
Measurement method
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Connect lines according to below diagram and obtain output signal amplitude with the
viewer program. At this time, the signal amplitude should be obtained as rms. (rms is
obtained from 1000 samples)
viewer program. At this time, the signal amplitude should be obtained as rms. (rms is
obtained from 1000 samples)
Figure 2.6 Connection diagram to obtain input referred noise size