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Why Is The 4 Wire Rtd More Accurate? [Solved]
The current value is constant here (very less). The voltage will be generated based on the change in resistance which in turns depends on the measured temperature. That’s why 4 wire RTD is more accurate than the 2 or 3 wire RTD’s as the temperature measurement based on the voltage signal instead of resistance.
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Temperature Measurement By 4 Wire RTD | Electrical Instruments Explained
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2 wire, 3 wire and 4 wire RTD Explained
Learn the differences between 2-wire, 3-wire, and