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Repair / hack STW sensor.
#1
   
Yes i used to be a hand model
   
I am attempting to repair a old STW sensor from my boat. i thought it had a magnetic switch as when i measure the paddle spinning i would get beeps out of my meter in diode mode.
The paddle has 2 magnets in it with opposing polesĀ  and is mounted in a though hull fitting.
with a black and red wire leaving the though hull.
today i decide to test for ac. after looking at the signet site when i spin it i get an ac voltage.
I assume the frequency of the signal equals the rpm of the paddles * 2
I don't have a scope.
Resistance is about 1.8K
flicking it with my finger i get about 10V AC max
How should I read this device?
What is inside the though hull a coil?
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Messages In This Thread
Repair / hack STW sensor. - by ddelorme - 2020-02-14, 05:25 PM
RE: Repair / hack STW sensor. - by seandepagnier - 2020-02-15, 03:44 AM
RE: Repair / hack STW sensor. - by ddelorme - 2020-02-15, 04:22 AM
RE: Repair / hack STW sensor. - by ddelorme - 2020-03-02, 09:28 PM
RE: Repair / hack STW sensor. - by abarrow - 2020-03-03, 02:58 PM
RE: Repair / hack STW sensor. - by ddelorme - 2020-03-04, 01:29 PM
RE: Repair / hack STW sensor. - by ddelorme - 2020-03-07, 06:08 PM
RE: Repair / hack STW sensor. - by abarrow - 2020-03-07, 06:32 PM
RE: Repair / hack STW sensor. - by ddelorme - 2020-03-07, 08:14 PM
RE: Repair / hack STW sensor. - by ddelorme - 2020-04-05, 03:07 PM
RE: Repair / hack STW sensor. - by abarrow - 2020-04-05, 03:15 PM
RE: Repair / hack STW sensor. - by ddelorme - 2020-04-05, 04:08 PM

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