A Three Directional Ballistocardiograph

概要

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A design was made of a new simultaneous recording device for three directional ballistocardiograms on the dog's frontal chest using a direct-body system. Physical characteristics of the pick-up device was analysed by a specially de-signed detector. Frequency response showed an accurate operation of the pick-up in a frequency range from I to 350cps. Output linearity of the pick-up was satisfactory within a maximum vibration amplitude of 0.25mm at 100cps. The anesthetized dog's ballistocardiograms obtained by the present pick-up showed a marked resemblance to that obtained from a non-anesthetized normal man except a few findings. The present device may be favorably employed to pursue the composing factors of ballistocardiographic waves on an experimental basis.
社団法人日本循環器学会の論文
1966-03-20