Design of a digital four-terminal-pair impedance bridge
نویسنده
چکیده
The paper describes the design of a four-terminal-pair impedance bridge developed at INMETRO. Originally devised to work as a quadrature bridge for deriving the unit of capacitance (Farad) from a resistance (Ohm) or vice-versa, it allows the comparison of impedances in general with outstanding accuracy and measurement uncertainties bearing some 10 /
منابع مشابه
AC resistance measurements using digital sampling techniques
Here we will present measurement results for ac resistors calibrations, made with a four terminal-pair digital impedance bridge, developed at Inmetro. This bridge operates in a wide frequency and value ranges, for both in-phase and quadrature measurements, with uncertainties bearing some μΩ/Ω.
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