MULTI-RANGE TRANSFORMER BRIDGE FOR CALIBRATION OF INDUCTANCE STANDARDS
Andrzej Met, Krzysztof Musiol, Tadeusz Skubis
Abstract:
A high-precision multi-range unbalanced transformer bridge designed for inductance standard calibration is described. Basic theory of the bridge is discussed which enables direct measurement of differences of both impedance components (ΔL and ΔR). The instrument was designed to compare inductors from 100 mH to10 H in the frequency range from 100 Hz to10 kHz. The uncertainty of comparison in the impedance range from 1 W to 10 kW is assessed to be smaller than 10 ppm.
Keywords:
inductance measurements, standard inductor, transformer bridge
Download:
IMEKO-WC-2009-TC4-683.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009
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