All sensing disciplines have an
‘Achilles heel’. For example, ultrasonic devices struggle to operate correctly in high winds, as the sound wave emitted and received back to the unit can literally be blown off course, resulting in poor response. Similarly, most photo-electric sensors, when used outside, can suffer the effects of adverse weather – snow, fog, heavy rain and humidity. Even good weather can present problems, as bright sunlight can affect correct operation. In addition a build- up of dust and dirt on the lens will impede accurate sensing. This often makes both types a poor choice for use outside. Radar sensors, however, are
unaffected by dirt, wind, rain, fog, light, humidity or air temperatures (operating temperatures are between -40 and +65 degrees). Radar sensors use a frequency modulated continuous wave in the GHz frequency band to detect both stationary andmoving targets. Their field of view can typically vary from 10˚ to 90˚, and ranges from 3.5m to 100m are available. The target must
contain metal, water or a similar high-dielectric material. Features such as analogue outputs, multiple measuring zones, multiple outputs, three- dimensional data, IO-Link, level control and visual outputs are all available. Radar sensors are particularly suited
to detecting stationary or moving vehicles in rain, snow, high and low temperatures andwind. They canalsobeusedtodetect a poor target in front of a good reference target. Radar sensors can be hidden behind a plastic fascia panel or in a plastic box with negligible effect in performance. Their reliability over long distances
in extreme weather conditions make radar sensors the ideal choice for collision avoidance on board mobile equipment such as reach stackers, forklifts, and mining vehicles. In fact if you would like to use an
ultrasonic sensor, but can’t because of environmental limitations, a radar sensor will probably be the best solution. Turck Banner is able to offer the widest
range of sensing solutions, across all industry sectors.
Dual Zone Radar Reduce costs
Dual Zone Radar Reduce costs
Reliable in all wlRe iable in all weather conditions ther conditions
Q90 Radar Highly configurable independent sensing zones, based upon distance, radial position and speed thresholds, allows the Q90R2 to accurately detect multiple trucks or other objects.
Wide 120 x 40 degree field of view, permits the detection of trucks at two adjacent loading docks.
Radar reliably works in weather conditions that can affect other sensors.
Sensing range of 150mm to 20m
Available with configurable NPN/PNP or analogue outputs and IO-Link.
IO-Link provides real-time process data, parameter adjustment and diagnostics.
www turckbanner
co.uk www..turckbanner.co.uk
Turck Banner Ltd. Blenheim House, Blenheim Court, Wickford, Essex SS11 8YT Tel: 01268 578888
sensors@turckbanner.co.uk
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