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Electrode paste ____________(a) increases contact impedance(b) equates contact impedance(c) reduces contact impedance(d) absorbs contact impedanceThe question was posed to me in examination.Query is from Recording Electrodes in section Bioelectric Signal and Electrodes of Biomedical Instrumentation

Answer»

The correct option is (c) reduces contact impedance

Easy explanation: In order to obtain a clearly established contact (low contact impedance) an electrolyte or electrode paste is usually employed as an interface between the electrode and the surface of the SOURCE of the event. It is placed between the skin and the electrode. It HELPS to get BETTER signal ACQUISITION.



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