Timeline for What can be the reason for the extra connections from this Wheatstone bridge to the amplifier?
Current License: CC BY-SA 4.0
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| Jul 20, 2018 at 12:35 | comment | added | TimB | It is called "4-wire" or "Kelvin" sensing. You don't want to apply current through the same wires you are using to sense voltage. If you do, then the voltage drop in the wires due to the current will add to the voltage you are trying to measure letting to an incorrect measurement. So you apply current through one set of wires, and sense with another pair. | |
| Jul 20, 2018 at 12:25 | comment | added | floppy380 | How does it happen innerly? I couldnt picture what you mean. Could you provide a simple drawing illustrating what you say? | |
| Jul 20, 2018 at 12:20 | history | answered | Scott Seidman | CC BY-SA 4.0 |