| 摘要 |
1. A spark-safe device determining the position of a mining machine equipped with its own drive unit in mine excavations, containing a motion sensor located on the mining machine and coupled through a gear with a driving tractor, characterized in that the motion sensor (2) is equipped with a measuring code disc and is connected to a transmitter (3), the output of which is connected to a receiver (8) by means of a power cable (6) on which are a transmitting antenna (4) and receiving antenna (7), while the output of the receiver (8) is connected through a mine transmission system (11, 12, 13) to the input of the receiving translator (14), to the output of which a pen recorder (16) and data processing computer system (17) are connected in parallel.<IMAGE>
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