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Author Topic: connection problem between the wire and the circuit  (Read 105 times)
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emmanuelle1670
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« on: December 13, 2012, 02:11:10 pm »
 Bigger Bigger Smaller Smaller Reset Reset
hello
I'm doing the circuit in the attached picture and I do not understand the connection between the wire and the circuit for the sensor tmp36 a 3 pin (gnd pin, pin analog pine v +) and there are only 2 wires used in the shielded wire and there are 3 (2 inner wire and a wire multibrain outside). can you explain how the physical connection between the two?

thank you in advance for ideas!
Emmanuelle
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« Reply #1 on: December 13, 2012, 04:07:33 pm »
 Bigger Bigger Smaller Smaller Reset Reset
The sensor circuit is wired to generate a current that varies with temperature. That current passes through R3 and causes a voltage to be developed at Vout.
The ground connection is attached to the shield of the cable to eliminate induced noise along the cable path.


 
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