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Thread: Electronics question
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09-14-2007 #1
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Electronics question
I am trying to figure out how to get a gauge that shows a difference in pressure between two senders.
The first use I have for this is oil filters, to see when it is time to change them.
What I need to know is how electric gauges work. Obviously, the more power going through from the sender, the higher the reading, but is there a way to use another sender to counter that reading?
What I need is to get a read on only the difference between the outputs of two senders. If both have 50 psi then the gauge should read 0, if one is 60 and the other 50 psi then the gauge should show 10 psi.
Anyone know electronics here?
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