Abstract: The invention relates to the positioning of an additional photo receiver in addition to the known laser sensors for detecting double parts during transport and during the loading of machines, which are situated opposite each other. The additional photo receiver receives the laser beam from a laser sensor located opposite, exactly when there is no material in the measuring gap and the two laser sensors are precisely aligned. This arrangement makes it possible to improve the measuring process and the analysis of the measurement, and thereby increases process reliability during the monitoring of transport and the loading of machines.

Abstract: The invention relates to the positioning of an additional photo receiver in addition to the known laser sensors for detecting double parts during transport and during the loading of machines, which are situated opposite each other. The additional photo receiver receives the laser beam from a laser sensor located opposite, exactly when there is no material in the measuring gap and the two laser sensors are precisely aligned. This arrangement makes it possible to improve the measuring process and the analysis of the measurement, and thereby increases process reliability during the monitoring of transport and the loading of machines.