A novel method for analog measuring of pulse width and rise time of defibrillating shocks

A novel method and the instrumentation developed for analog measuring of pulse width (T/sub 10/ or T/sub 50/) and rise time (T/sub 10-90/) of cardiac defibrillator discharges are presented. The input pulse is applied to an analog delay network and to a peak detector which determines reference voltag...

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Bibliographic Details
Main Authors: Nohama, P., Crespi, L.M., Farias, M.A.C.
Format: Conference Proceeding
Language:English
Subjects:
Bioelectric potentials
Counting circuits
Decoding
Detectors
Electrophysiology
Instruments
Liquid crystal displays
Phase shift
Pulse generation
Pulse measurements
Signal generators
Space vector pulse width modulation
Time measurement
Voltage
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Description
Summary:A novel method and the instrumentation developed for analog measuring of pulse width (T/sub 10/ or T/sub 50/) and rise time (T/sub 10-90/) of cardiac defibrillator discharges are presented. The input pulse is applied to an analog delay network and to a peak detector which determines reference voltages. Those phase-shifted signals go to a comparator that generates the control pulse. A counter and a decoder excite the LCD display that shows the measured parameters with accuracy better than 0.33%.
ISSN:1094-687X
0589-1019
1558-4615
DOI:10.1109/IEMBS.1999.802395