Josephson Voltage Standard
graphical user interface to control the Josephson Voltage Standard System
is a fully automatic
10 V Josephson Voltage Standard System which was developed more than 10 years ago in the Leibniz-Institute of Photonic Technology
and since than refined and optimised by Supracon
The system can facilitate several calibration and measuring modes for dc voltages:
- Calibration of secondary voltage standards
- Calibration of linearity and accuracy of voltmeters (dc) in the voltage range of 0 to ±10 V
- extremely accurate output of arbitrary reference voltages up to 10 V
- direct comparison between two voltage standard systems
No other device combines these functionalities with the highest precision.
control is available in two versions. The first uses liquid helium as a coolant to bring the Josephson Voltage Standard chip to its operating temperature. In the second version the chip is mounted on a coldhead of a pulse tube cooler which requires electrical power only.