esz AG presents Josephson quantum calibrator

After three years, the EURAMET project "QuADC - Waveform metrology based on spectrally pure Josephson Voltages" was successfully completed. Two specialists from esz AG calibration & metrology presented the world's only industrially used Josephson quantum calibrator at the National Physical Laboratory in London. In addition to the successful comparison measurements, a comprehensive impression and the innovative possibilities of the quantum calibrator were presented.

From 25 to 28 March 2019, esz AG carried out tests in the industrial environment, validated and evaluated them. The aim of the project was the further development of a user-friendly, industrially usable Josephson Arbitrary Waveform Synthesizer (JAWS) for the quantum accurate measurement of AC voltages up to 1000 V and 1 MHz. The PTB led the project which included an investment of two million euros. In addition to esz AG, two other private companies and the national metrology institutes of eleven European countries participated in the project.


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