| 摘要 |
An electronic safety system for the detection of a shaft failure and for the interruption of the energy supply to the shaft includes at least one measuring light guide ( 13 ) which is firmly routed in the shaft longitudinal direction, co-rotates with the shaft ( 1 ) and is connected to a light source ( 18 ) on a light inlet side ( 14 ). In the event of a shaft failure, the measuring light guide will break to diminish light transmission therethrough, with the absence of light on a light outlet side ( 15 ) being detected by an optical sensor ( 19 ) and being used, via evaluation and control electronics ( 20, 21 ), as a signal for the shut-off of the further energy supply at a fuel shut-off valve ( 22 ). The measuring light guide is fixed to a measuring sleeve ( 4 ) attached at both ends to the shaft.
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