Liquid resistance compensating circuit in polarization measuring circuit
專利匯可以提供Liquid resistance compensating circuit in polarization measuring circuit專利檢索，專利查詢，專利分析的服務(wù)。并且PURPOSE:To compensate reference pole output voltage accurately without the effect of liquid of low conductivity, the liquid resistance change during measurement, etc. by multiplying the liquid resistance component by the AC current flowing in a test tank and DC electrolytic component thereby calculating compensating voltage. CONSTITUTION:The AC current (i) from an AC power source 5 and the DC current I through a potentiostat 6, and an AC blocking circuit 14 is applied to the counter electrode 2 in the liquid flowing in a test tank 1, and a potentiostat 6 is subjected to constant potential control through a reference pole 4, whereby the polarization curve of the relation between the potential of a sample pole 3 with respect to the pole 4 and DC electrolytic current density is measured. Based on the liquid resistance component voltage through an amplifier 10 or the like through this pole 4, and the DC electrolytic component voltage by the pole 3 and an amplifier 12, the compensating voltage formed by a multiplier 11 is applied to a subtractor 13. If the amplification factors of the amplifiers 10, 12 and the subtractor 13 are so set as to be made as prescribed, the accurate polarization measurement through the correct constant potential control by way of the potentiostat is accomplished irrespectively of the liquid of low conductivity and the liquid resistance change during measurement.，下面是Liquid resistance compensating circuit in polarization measuring circuit專利的具體信息內(nèi)容。
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