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The BMW Range
3 Series
Auto Rain Sensor - Smart enuf for u?
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<blockquote data-quote="KL2DC" data-source="post: 181676" data-attributes="member: 3452"><p>In actual fact... the sensor is comprised of a sending unit and a receiving unit. Light (infrared?) is sent out into the windshield on an angle, bounces around between in the inside and outside surfaces and is detected by the receiving unit. When the windshield is wet, light escapes due to differing levels of refraction so less light is received by the receiving unit. The less light received, the "wetter" the windshield.</p></blockquote><p></p>
[QUOTE="KL2DC, post: 181676, member: 3452"] In actual fact... the sensor is comprised of a sending unit and a receiving unit. Light (infrared?) is sent out into the windshield on an angle, bounces around between in the inside and outside surfaces and is detected by the receiving unit. When the windshield is wet, light escapes due to differing levels of refraction so less light is received by the receiving unit. The less light received, the "wetter" the windshield. [/QUOTE]
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Auto Rain Sensor - Smart enuf for u?
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