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High resistance scaling from 10 kΩ and QHR standards using a cryogenic current comparator
2008 Edition, June 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We describe a cryogenic current comparator (CCC) bridge for resistance scaling that provides improved measurement uncertainty over a range of resistance values from 100 kOmega to 1 GOmega. This CCC is designed for high...

Self-balancing resistance ratio bridge using a cryogenic current comparator
1989 Edition, Volume 38, April 1, 1989 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

A cryogenic current comparator resistance bridge, developed to measure the resistance ratios of 1, 10, 100, and 6453.2 Omega against 1 Omega , is described. It is shown that the precision of the 1- Omega comparison is better than 0.01 p.p.m....

Self-Balancing Resistance Ratio Bridge Using a Cryogenic Current Comparator
1988 Edition, January 1, 1988 - IEEE - Institute of Electrical and Electronics Engineers, Inc.
A description is not available for this item.
Characterization of a GHz non-adiabatic single-electron pump using a cryogenic current comparator
2012 Edition, July 1, 2012 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We use a cryogenic current comparator with primary/secondary winding ratio of N P ∶N S =4501∶1 to scale up the current from a non-adiabatic single-charge pump. The up-scaled current, I S , is traceably characterized with...

Direct resistance comparisons from the QHR to100 M/spl Omega/ using a cryogenic current comparator
2005 Edition, Volume 54, April 1, 2005 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Measurements of room-temperature 100 M/spl Omega/ standard resistors and cryogenic thin-film resistors based directly on a quantized Hall resistance standard have been made with a cryogenic current comparator (CCC) bridge. This...

Progress in Resistance Ratio Measurements Using a Cryogenic Current Comparator at LCIE
1985 Edition, Volume IM-34, June 1, 1985 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The cryogenic current comparator (CCC) built at LCIE allows measurement of resistance ratios equal to α(1 ± 4 × 10-5) where α = 1, 10, 100, 64.53, or 129.06. The equipment is now currently used for intercomparison of 1-Ω standard...

A zero boil-off dewar for use with a cryogenic current comparator
2012 Edition, July 1, 2012 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We describe the initial performance of our CCC / SQUID insert with a cryocooled dewar based on a two-stage pulse tube that maintains a pool of liquid helium within a sample space. The heat-leak into the liquid helium pool was calculated at ∼ 180 mW. When the unit was...

Uncertainty evaluation in a two-terminal cryogenic current comparator
2008 Edition, June 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In this paper we present the uncertainty evaluation of a new cryogenic current comparator (CCC) bridge designed to compare two-terminal 1 MOmega and 10 MOmega standard resistors with the quantized Hall resistance (QHR) and then...

Uncertainty Evaluation in a Two-Terminal Cryogenic Current Comparator
2009 Edition, Volume 58, April 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We present an uncertainty evaluation of a new cryogenic current comparator (CCC) bridge that is designed to compare two-terminal 1 and 10 MOmega standard resistors with the quantized Hall resistance (QHR) and scale...

Direct Resistance Comparisons from the QHR to 100 Megohm using a Cryogemic Current Comparator
2004 Edition, June 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We describe the operation of a cryogenic current comparator (CCC) bridge that attains high current sensitivity while maintaining stability under a range of measurement conditions. Measurements of 100 MCI standard resistors and...

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