Manual or automatic nulling DC offset for physiological DC amplifier. 1994

M Verbeke, and S Gur, and S Ron, and R Iraqi
Occupational Health and Rehabilitation Institute, Loewenstein Hospital, Raanana, Israel.

An inexpensive circuit to compensate for DC offset is presented. The circuit may be connected in a straightforward manner to any currently existing DC isolation amplifier and causes no deterioration in the performance of the system. The offset voltage is measured at discrete time intervals and then subtracted from the input signal. A switch is provided to bypass the offset compensation when the latter is not required.

UI MeSH Term Description Entries
D004582 Electronics, Medical The research and development of ELECTRICAL EQUIPMENT AND SUPPLIES for such medical applications as diagnosis, therapy, research, anesthesia control, cardiac control, and surgery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Medical Electronics
D001698 Biomedical Engineering Application of principles and practices of engineering science to biomedical research and health care. Clinical Engineering,Engineering, Clinical,Engineering, Biomedical

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