| 摘要 |
The invention relates to a high-frequency monitoring system comprising an emission unit ( 2 ) for emitting a high-frequency monitoring beam ( 16 ) and a reception unit ( 4 ) for receiving the same. According to the invention, said high-frequency monitoring system comprises a beam deflection means ( 8 a-f) which is used to deflect the monitoring beam ( 16 ) and is arranged at a distance from the emission unit ( 2 ) and the reception unit ( 4 ) along at least one monitoring path ( 18 ). |
