MONITORING DEVICE FOR A SLIP-FORM PAVER FOR MONITORING THE COMPRESSION OF CONCRETE AND METHOD FOR MONITORING THE COMPRESSION OF CONCRETE DURING OPERATION OF A SLIP-FORM PAVER

摘要

Monitoring device for a slipform paver for monitoring the compaction of concrete introduced into a slipform of the slipform paver with at least one concrete compacting device which has an asynchronous motor for driving an imbalance which generates vibrations. A method for monitoring the compaction of concrete is also disclosed. The monitoring device and the corresponding method are characterized in that, on the basis of an analysis of the stator current (I stator ), a change in the compaction of the concrete is concluded. The monitoring device 8 has a device 13 for monitoring the stator current of the asynchronous motor, which is configured such that a change in the compaction of the concrete is concluded on the basis of an analysis of the stator current (I stator). The device 13 for monitoring the stator current of the asynchronous motor is preferably configured in such a way that the amplitude spectrum of the stator current is determined in order to analyze the stator current (I stator). The advantage is that the monitoring of the compaction of the concrete does not take place by means of sensors which are exposed to the rough ambient conditions during the operation of the slipform paver.