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6 Installation of the ultrasonic sensors
Observe the following safety instructions for handling ultrasonic sensors:
Thesurfacetowhichtheultrasonicsensorismountedmustbeevenand
mustbeatleast2mmlargerthantheultrasonicsensor(thisisrequired
toprotectthedrainageholesintherearagainstdirecthigh-pressure
cleaning).
UltrasonicsensorsmustnottobemountedinaU-prolebecausethis
couldcausereections.WABCOrecommendstomounttheultrasonic
sensorsmechanicallyprotectedtoavoiddamage.
Theabilitytodetectobjectslargelydependsontheultrasonicsensors'
positioningonthevehicle.Makesurethattheultrasonicsensorsare
installedataheightofatleast40cm.
Noothervehiclecomponentsshouldbeinstalledwithintheultrasonic
sensor'srangeofvision.
Therateofdetectiondependsonobjectsurfaces:
Ultrasoundisbestreectedbysmoothsurfacesthatarepositionedata
rightangletothesound'sdirection.
Smallandunfavourablesurfacessuchasmeshedstructures,furry
orhairysurfacesatanobliqueangletothesound'sdirectionarenot
detected so easily.
Installation of the ultrasonic sensors