| 摘要 |
FIELD: railway transport. ^ SUBSTANCE: wheel pair passage recorder consists of remote power supply (12), wheel pair passage signal channel (11), high-frequency oscillator (6), transmitter (7), receiver (10), circulator (8) and spot beam transceiving antenna (9). Note here that high-frequency oscillator output is connected with transmitter first input, transmitter output being connected with circulator first output. Circulator second output is connected with aforesaid antenna, while circulator third output is connected with receiver first input. Receiver output is connected with wheel pair passage signal channel first input. Note that remote power supply output is connected with high-frequency oscillator input and transmitter second input, and with wheel pair passage signal channel second input. ^ EFFECT: higher reliability and validity of output data. ^ 4 cl, 7 dwg |
