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Low cost optical distance measurement

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IFM efector's pmd received the prestigious Hermes 2005 award in Germany. It is designed for distance measurement to within a millimetre at high ranges, operating on the time-of-flight principle.

With a measuring range of 10,000mm, applications include collision avoidance on overhead conveyors, "shelf-occupied" detection and level control.

efector pmd can be used for measuring tasks at shorter operating distances from 200mm, including detection of products eg. in packaging areas of a production line. It can also be used for level monitoring of food products.

In comparison to traditional time-of-flight sensors that use a photodiode as the receiver element, the pmd's sensor's receiver element is a "System-on-Chip" design.

Both sensor element and electronics for signal evaluation are integrated on a single silicon chip called a Photonic Mixer Device (PMD).

This innovative design offers maximum performance in a compact, industrially compatible housing - at a fraction of the price of traditional systems.

Visit ifm at National Manufacturing Week, stand 3003, call on 1300 365 088, or go to http://www.ifm-electronic.com.

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