Charm Engineering Co. Ltd CAI001-BT33 Benutzerhandbuch
CORITICAL ACTIVITY INDEX
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3.4 Displaying CAI index data
When the sensor inspection is completed successfully, monitoring starts automatically and
relevant information is displayed on the screen.
relevant information is displayed on the screen.
Figure 3.4 Main screen
3.4.1 Calculation method
CAI calculation method is to create index based on combination of 4 energy frequencies, offset
EEG suppression ratio ( BSR, Burst Suppression Ratio), and operate final CAI index.
Calculates brain activity values within the range of 2.5Hz ~ 48Hz
Brain activity is calculated by measuring brainwave value above a certain level by dividing
measured brainwave into certain time.
Calculates muscular activity by measuring electromyogram in the range of 80Hz ~ 130Hz.
EEG suppression ratio ( BSR, Burst Suppression Ratio), and operate final CAI index.
Calculates brain activity values within the range of 2.5Hz ~ 48Hz
Brain activity is calculated by measuring brainwave value above a certain level by dividing
measured brainwave into certain time.
Calculates muscular activity by measuring electromyogram in the range of 80Hz ~ 130Hz.