Driving point immittance

Driving point immittance is defined with excitation and response at the same port, the result is not influenced hy any contrihution from transmittance components. There are two possible ratios vi/ii (impedance) and ii/vi (admittance). 

The one-port two-electrode network measures the driving point immittance of the tissue without any transmission component. The two-port, four-electrode network measures the transfer immittance from one port to another. It can be completely defined with four ratios (constants) characterizing the network, and four variables. Here we will introduce two equation sets ... 

The classical immittance concept is linked to sine waves. The driving point admittance of a black box port is for instance defined as the ratio Y = i/v, where v is a sine wave as the independent variable. However, such ratios may be defined also for other waveforms than DC or sine waves. The immittance concept may be extended by the Laplace transform. 

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See also in sourсe #XX -- [ ]

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