• Quantum Hall applications including gallium arsenide and graphene sample measurements
• Vcr, Vxx, and Vxy Measurements
• Self—Calibration of the binary wound current comparator (25-bit) plus nanovolt detector reading
• Current range from 1 μA to 200 mA
• Ratio 0 to 14:1
• Resistance range 0.1 Ω to 100 kΩ
• 7” touch screen with USB
• Best Accuracy < 15 ppb

Since 1994, the 6010 technology has set the standard for DC Current Comparator (DCC) Resistance Bridge performance in calibration laboratories globally. The time has now come to advance this best-in-class series, taking advantage of twenty-first century AccuBridge® ADCCC technology.

Measurements International’s (MI) major technological advantage in resistance measurements is the development of the only commercially available portable Quantum Hall System, QUANTΩ, which uses a AccuBridge® ADCC technology bridge as the measurement system operated in ambient temperatures. Like all our DCC bridges the current range is from 1 uA to 200 mA for use as a Quantum Hall Bridge and a resistance bridge . The ADCC 6020Q features increased ampere turn sensitivity (more turns) on both the slave and master winding’s and a new voltage feedback circuit to improve on the linearity error of the nano volt amplifier.

MIL has world class expertise in both DC Resistance Metrology at NMI’s and 17025 Accreditation throughout industry. As your accreditation partner and global support partner, MIL offers leading product knowledge and applications expertise through coaching, system design, implementation, calibration services and ongoing expert support insuring your competitive advantage.

The AccuBridge® 6020Q room temperature ADCC Quantum Hall Resistance Bridge can be used to characterise both the GaAs/AlGaAs or Graphene samples by measuring and plotting the field sweep, the contact resistance (Vcr), the longitudinal resistance and dissipation of the I = 2 plateau (Vxx) and transferring the Hall Resistance (Vxy) to a 1,000 Ω standard resistor.

Enhancements using AccuBridge® ADCC technology include a higher ampere turn sensitivity covering a wider range of resistance ratio, a current and voltage feedback circuit for increased linearity performance and a new calibration technique with increased resolution in obtaining even tighter specifications. In addition to the updated technology, it carry’s the 6010’s dependability, simplified calibration, ease-of-use, automation, speed of measurement and worldwide support making the 6020Q the BEST and ONLY Resistance Bridge that offers uncertainty specifications that rival anything available today.

The AccuBridge® 6020Q is a fully automated bridge. Its speed, precision and measurement accuracy accounts for its preferred status as the primary resistance bridge in most NMIs throughout the world. It is designed for flexibility and ease of use and is perfectly suited for stand-alone resistor calibrations.

The Accubridge® 6020Q has two inputs, Rx and Rs. The number of inputs can be expanded to 40 when used in conjunction with the 4200 Series Low Thermal Four Terminal Matrix Scanners. Measurements can be performed automatically and with Measurements International’s 6020Q software delayed or scheduled measurements can all be performed at any time. Automatic current reversal ensures that dc offsets and thermals in the bridge and scanner are canceled out during the measurement. See the 4200 Data Sheet for a complete range of Matrix Scanners.