CONNECTION OF REGISTRATING QUICK-MEASURING SET FOR DRIVING RAIL VEHICLES

摘要

The design concerns the connection of the speed recording indicator for driving rail vehicles /also the name locomotive tachograph is used/ and its constructional arrangement. The invention handles mutual interconnection of the individual functional blocks and circuits in the way that one achieves maximal resistance against external interfering voltages that are superimposed in practice both on the supply voltage of the network of the vehicle and on all the input and output signal loops. One also achieves high precision of measurement and record in comparison with formerly used connections. The constructional arrangement and separation of circuits into three mutually electromagnetically screened areas enables attainment of high resistance against external electromagnetic interferences and quick diagnosis of the device directly on the vehicle and its easy and quick repairability.<IMAGE>