Sensors & Transducers


Compact sensors for absolute measurement

August 2003 Sensors & Transducers CCTV, Surveillance & Remote Monitoring Smart Home Automation

The SIKO magnetic absolute sensor MSA510 is an absolute linear sensor combining high precision, robustness and a compact size. This system is suitable for measuring lengths up to 5000 mm giving a resolution of 10 µm and a precision of 50 µm. Any referencing - as needed with incremental systems - is no longer required.

The system is comprised of a flexible 20 mm wide magnetic tape with an absolute coding and a sensing head with integral sensing electronics, signal conversion and interface. The sensors dimensions have been reduced to 20 x 67 x 33,5 mm (width x length x height). Additional interface electronics are no longer required. The sensor can be directly linked to master controls or bus systems. Standard interfaces are SSI and RS485 with further options, such as CAN-Bus or Profibus also available.

Technical features (such as system accuracy 50 µm, resolution + repeat accuracy 10 µm over a measuring length of a max 5000 mm) have so far only been possible with similar incremental measuring systems. Another advantage of the new sensor is the possibility to reduce machine setting times due to its absolute operation: no more time-consuming referencing moves are required. When switched on, the system immediately indicates the absolute position value.

For more information contact Andrew Huart, Instrotech, 011 462 1920, info@instrotech.co.za, www.instrotech.co.za



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