FIELD: measuring engineering.
SUBSTANCE: method comprises measuring voltage drop at scaling resistors and resistor to be measured, determining the resistance as the ratio of the voltage drop at the resistor to be measured to that at the scaling resistor, and multiplying the ratio by the known value of the scaling resistor. The device has power source, four-wire line, scaling resistor, resistor to be measured, units for measuring voltage drop at the resistors, divider, and multiplier. The output of the multiplier is the outlet of the device.
EFFECT: enhanced accuracy and stability of measurements.
2 cl, 1 dwg
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