Galvano-Static Mode

The quantity of oxygen m removed from the liquid metal by time x through the surface S = 2%Rh, in accordance with the Faraday law at i = const, can be determined as 

The deepness of the liquid metal purification from oxygen at the moment x can be given as 

On the other hand, the diffusion flow, which determines the oxygen transfer from the metal to the boundary r = R, is given as 

The relative oxygen concentration in Equation (4.128) can be expressed by using the electrophysical parameters of the pump at the initial moment Tq and at the moment T when an electronic conductivity appears in the solid electrolyte. The purification time can then be calculated for the obtained correlation  

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Figure 9. Block diagram of the computerized CORRCONTROL system in the galvano-static mode.

The two codes, written in basic language for an Apple He computer, use the galvano-static mode and drive, respectively, the Solartron mod. 1286 electrochemical interface and the EG G mod. 173 potentiostat, which is equipped with a mod. 276 interface. In both cases use is made of a Solartron mod. 1250 frequency response analyzer. 

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