Hirschmann Automation and Control Gmbh

Robert Tordy

Helmuth Kettenbach

Method for determining the overall length (GL) of a jib () of a crane in a wear-free manner, characterized in that a signal is coupled in at a first point () of the jib () and is coupled out at a second point () of the jib (), the overall length (GL) being determined from the time required for the signal to go from the first point () to the second point ().

Measuring jib length of a crane

Device for determining the force of an operational arrangement acting on a load receiver, wherein the load receiver is arranged movably relative to a component of the operational arrangement, wherein sensor means are provided, determining the force acting on the load receiver, wherein transmission means are provided, which wirelessly transmit a signal representing the force generated and emitted by the sensor means to a control device of the operational arrangement, and wherein energy supply means providing the power supply at least for the sensor means and/or for the transmission means are provided on the load receiver.

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Hassloch, Germany

Robert Tordy