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US 4,301,413 AGranted
Circuit arrangement for amperometric titration
AssigneeSiemens Aktiengesellschaft
InventorHubert De Steur
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AssigneeSiemens Aktiengesellschaft
InventorHubert De Steur
Estimating the term…
A circuit arrangement is disclosed for determining the end point in an amperometric titration, in which the current between a working electrode and a counter electrode is measured as a function of the total volume of the titration agent added in volume units. The working electrode is operated with a constant polarization voltage with respect to a reference electrode and a closed-loop control is provided for holding the polarization voltage prescribed between the working electrode and the reference electrode at a constant. The prescribed rated value voltage is compared to the actual value voltage identified between the working electrode and the reference electrodes. The reference value voltage is prescribed with the assistance of a reference value generator, the actual value voltage is identified in a high resistance manner with the assistance of an impedance transformer and the reference value/actual value deviation is compensated by way of a summing integrator.
A circuit arrangement for an amperometric titration for determining the end point, in which the current is measured between a working electrode and a counter electrode in a vessel in which the titration agent is introduced and the current is measured as a function of the total volume of the titration agent added in volume units, and in which a reference electrode is provided in the vessel, comprising:
Dependencies are inferred from the claim text.