| 摘要 |
FIELD: railway signaling and combustion. ^ SUBSTANCE: invention is designed to check conditions of rail lines in case of change of shunt conductance in wide range. Proposed device operates by determining difference in signals of two frequencies transmitted by rail line and determining condition of rail line bashing on value of difference in voltages. ^ EFFECT: includes reliability of checking condition of rail lines by processing of signals of lower and higher frequencies by one rectifier and introduction of compensating capacitor. ^ 4 dwg |
