Sensors & Transducers


Multiposition measurement

October 2008 Sensors & Transducers

The non-contact MTS Temposonics position sensors are now able to measure up to 30 positions along a common axis using only one sensor. Depending on the number of measuring points, an appropriate number of position magnets are provided that all generate an individual signal travel along the sensor housing simultaneously. Each magnet is firmly assigned to a mobile machine part. Due to a decreased number of position measurement systems and the compact construction of the Temposonics sensor, the costs of displacement measurement and space requirements are reduced.

Multiposition measurement is available for all sensors with fieldbus interface, allowing CANbus and Profibus sensors to measure up to 30 positions simultaneously. The version with EtherCAT output provide measurement of up to 20 positions in one cycle in the asynchronous mode, or five positions and five velocities during the synchronous mode (distributed clock). For high flexibility of operation, the sensors are available as profile or rod-shaped versions, with detached electronics or with flexible sensing element. With a linearity better than ±0,01% F.S. and a repeatability of <±0,001% F.S., measurement lengths up to 20 m are available.

The field of application for multiposition measurement includes mainly quick, precise adjustment of the cutting width, eg, in the paper, ceramics, metal, textile or wood industry. Each cutting tool has its own position magnet on the sensor that is mounted in parallel to the motion axis and travels independently. The advantages of multiposition measurement are also evident in materials handling, plastics and construction machinery.



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