IEEE Transactions on Biomedical Engineering · 1970 · 32 citations · 1 references
EngineeringBiomedical EngineeringElectrical EngineeringElectrochemistrySemiconductor DevicesDielectricsElectrode MaterialsImplantable Biomedical DevicesImplantable MicrodevicesThin-film TransistorsWorking ElectrodesCapacitanceElectrode - Skin InterfaceElectrode CapacitanceElectrode Surface EngineeringElectrode-skin InterfaceSurface Coating Of ElectrodesVarnish Materials
A suitable dielectric for a capacitive biomedical electrode is presented. In application a thin (2-mil) film of pyre varnish is deposited on the electrode surface and heat cured. Capacitance values of 800 pF for a 0.5-inch-diameter electrode are typical. A field-effect transistor source follower circuit is used in conjunction with this type of electrode.
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