Alfa Romeo Forum banner

Rain sensor: how does it work???

Tags
rain work
2K views 16 replies 9 participants last post by  THROTTLEMAN 
#1 ·
I've been trying to figure this one out, but I don't seem to find an answer... :(

How does the rain sensor work?? I believe that it has something to do with light being diverted (???) to the sensor, but i'm not sure.

Does anyone know this?? :confused:
 
#3 ·
The rain sensor is sending infrared signals to the windscreen. The windscreen reflects these signals so the signals go to a receiver. If the windscreen gets wet, a part of the signal gets lost by distortion and the receiver will get less signals. A little computer can calculate the intensity of the rain by the amount of signals it receives.
 
#4 ·
Seems a bit bloody complicated. My 145's rain sensor is much simpler. I look through the windscreen, if there's rain on it, I move a little stalk, and the wipers work. :p :p
laughing laughing laughing
 
#5 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by bazza:
<strong>Seems a bit bloody complicated. My 145's rain sensor is much simpler. I look through the windscreen, if there's rain on it, I move a little stalk, and the wipers work. :p :p
laughing laughing laughing </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">laughing laughing laughing F-A-N-T-A-S-T-I-C!!!!!

So you have the "Edizione Limitata" laughing laughing laughing
 
#6 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Mel Bonkers:
<strong>
So you have the "Edizione Limitata" laughing laughing laughing </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">That's right Mel, I've been told (sarcastically) that it's the QA, rather than the QV, since I have blue cloverleafs. It also has special darkness sensing lights, corner sensing steering, and someone-needing-to-enter-or-exit-the-vehicle sensing opening doors. All again involving me seeing the need and pressing the relevant button.
You 147 owners are just lazy!
What's that? No 145 owners allowed in this lounge, especially not sarcastic little b@st@rds? :eek:
I'll get me coat... :rolleyes:
 
#7 ·
Bazza-bear,

I'm still pi$$ing my pants when reading your comment laughing

It's just so unbelievably simple, it's almost stupid laughing

F-A-N-T-A-S-T-I-C!

Can I please use your wiper comment as my signature?

Ant would've said: wiper cheese laughing
 
#8 ·
Mel, you're welcome to use any comment I post as a signature. After all, it gets much more air-time when it's on your posts than mine, so my brilliance and comic genius is shared with more of the people. :D :D
 
#9 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Mel Bonkers:
<strong>It's just so unbelievably simple, it's almost stupid laughing
</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Unless it just was stupid, and you're giving me too much credit... :confused: :confused:
 
#10 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by bazza:
<strong> <blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Mel Bonkers:
<strong>It's just so unbelievably simple, it's almost stupid laughing
</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Unless it just was stupid, and you're giving me too much credit... :confused: :confused: </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Oooh, you might have made your first real point in this thread, just now! wink :D :D
 
#11 ·
Sorry all, I kind of hijacked this thread. But Selespeed seemed to have already provided the definitive answer, so I thought it was about time some sillyness was added.
David, only one thing can be said to you: :p
I'll vacate the premises now...
 
#12 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by bazza:
<strong>

It also has special darkness sensing lights, corner sensing steering, and someone-needing-to-enter-or-exit-the-vehicle sensing opening doors. All again involving me seeing the need and pressing the relevant button.
</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Bazza!!!! laughing laughing You're driving the knight Rider!!!!! laughing laughing laughing

Is ther an injection seat? :D :D wink
 
#13 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by hugo147:
<strong> <blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by bazza:
<strong>

It also has special darkness sensing lights, corner sensing steering, and someone-needing-to-enter-or-exit-the-vehicle sensing opening doors. All again involving me seeing the need and pressing the relevant button.
</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Bazza!!!! laughing laughing You're driving the knight Rider!!!!! laughing laughing laughing

Is ther an injection seat? :D :D wink </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">What?? The seat now gives flu shots?!?!? :) :D laughing laughing laughing laughing
 
#14 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Mel Bonkers:
<strong>Bazza-bear,

I'm still pi$$ing my pants when reading your comment laughing

It's just so unbelievably simple, it's almost stupid laughing

F-A-N-T-A-S-T-I-C!

Can I please use your wiper comment as my signature?

Ant would've said: wiper cheese laughing </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Do you think so Mel??

Wiper cheese,

Ant :D

BTW, my rain sensor works just like Bazza's. AND, it only works when I want it to. :D
 
#15 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by selespeed:
<strong>The rain sensor is sending infrared signals to the windscreen. The windscreen reflects these signals so the signals go to a receiver. If the windscreen gets wet, a part of the signal gets lost by distortion and the receiver will get less signals. A little computer can calculate the intensity of the rain by the amount of signals it receives.</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">I had a rain sensor on my Peugeot 206 GTi that used visible light.

The light was reflected off the window at a flat angle, and the amount of reflection off the window was used to measure the amount of rain.

This works because the refraction changes when there is water and not air on the outside of the window. Subsequently more or less light gets reflected back from the window.

/Mogens
 
#16 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by bazza:
<strong>Seems a bit bloody complicated. My 145's rain sensor is much simpler. I look through the windscreen, if there's rain on it, I move a little stalk, and the wipers work. :p :p
laughing laughing laughing </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Was that an optional extra bazza??
 
#17 ·
<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Antonio Chico:
<strong>What?? The seat now gives flu shots?!?!? :) :D laughing laughing laughing laughing </strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">:rolleyes: :rolleyes: :D :D
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top