DEVICE FOR MULTIPLE PARAMETER CHECKING OF RAILWAY COMMUNICATION LINE FACILITIES Russian patent published in 1997 - IPC

FIELD: railway transport. SUBSTANCE: device has generator, matrix eddy current converter of facility parameter into electric signal, electric calibrator, information processing and registration processor unit, device for shaping signals simulating interaction of matrix converter and checked facility with normalized parameters made in form of parallel connected simulating circuits, each including amplifying element built around field-effect transistor with capacitor connected to output circuit of amplifying element. Inputs of amplifying elements form inputs, and combined outputs of amplifying elements form output of above indicated signal shaping device. Number of simulating circuits is not less than number of parameters of checked facilities. Both inductance coils in matrix converter are matched with their geometric centers with axis of symmetry which is square to plane of converter, and are turned around this axis relative to each other through 90 degrees. Each section of 8-shaped coils has independent inputs and outputs. EFFECT: improved reliability of checking. 6 dwg