DISPOSITIF DE BRANCHEMENT D'UN COMMUTATEUR ELECTRIQUE D'EMPLACEMENTS DE MESURE AVEC SEPARATION DE POTENTIEL

摘要

The invention relates to a circuit arrangement of an electrical measurement point changeover switch having potential isolation, for use in process metrology, for example in recording apparatuses and analog/digital converters. The aim of the invention is to create an electrical measurement point changeover switch having potential isolation which makes more cost-effective production possible without using noble metals, the object being to improve reliability with simplification in production-engineering terms, a smaller structural volume and reduced consumption of auxiliary power, and to increase the life of electrical measurement point changeover switches having potential isolation. The idea of the invention is that the circuit arrangement consists of at least one primary winding, and at least one secondary winding is provided for each input terminal, a switch being located between the secondary winding and the input terminal, and the primary winding being connected to an output terminal via a drive circuit. The measurement point changeover switch according to the invention can be used in process metrology, for example in recording apparatuses and analog/digital converters. <IMAGE>