The Cable Drums
can be used to measure the length, inclination and speed depending on the version. A further application is the possibility of transfer the supply voltage and measuring data via the measuring cable. They are mainly used for the measurement of telescopic arms and telescopic booms in cranes and lifting platforms as well as for the control of stage constructions in the event technology.
The angle measurement
will be carried out e. g. via a high-resolution micro-electromechanical inclination measuring system. In the standard version is for the output a current or a voltage signal available.
The length measurement
will be made according to the wire measuring principle.
A multi-core measuring cable is used, which is winded one or multi-layered on a cable drum. The cable drum is equipped with a pull-back spring. In large measuring lengths a spindle roll guide makes sure that in case of multi-layered cable windings exactly lay on lay is winded.
The number of length proportional drum rotations will be measured, e. g. via a magnetic angular transducer, optional with voltage or current output.
In identical construction the length and inclination values can also be measured with digital transducer systems and read out in data type CANopen, also in redundant version for security-relevant applications, e. g. SIL2 according to IEC 61508.
of the measuring data and control signals will be made via the cable conductors of the measuring cable, which will be gripped on a multi-layered slip ring body and bounded to terminal strip.
All electric components are inside of a completely closed aluminium casing of IP65