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PRIMARY RESISTANCE STANDARD QHR2000

QHR2000 - A new standard in measurement

Comparison of the 100 Ohm standard with RK to 1 part in 108.
Portable Cryogenic Current Comparator (CCC) for independent use with low LHe consumption.
Wide range of ratios for comparing other resistances over the range 1 Ohm to 10k Ohm.
CCC fully shielded with turns ratio accuracy of 10-10
LabVIEW® software for automated operation, measurement and analysis.
Integrated system, only one cryostat required for QHR comparisons with low He consumption.
Full environmental shielding, a screened room is not necessary.
14 Tesla at 4.2K allowing use of plateaux up to n=2.


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