Electrical Quantum Metrology Standard for the Synthesis of Ac Voltages.
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| Title: | Electrical Quantum Metrology Standard for the Synthesis of Ac Voltages. |
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| Authors: | Katkov, A. S.1 (AUTHOR), Lovtsyus, V. E.1 (AUTHOR), Bykov, A. I.1 (AUTHOR), Shevtsov, V. I.1 (AUTHOR), Petrovskaya, A. N.1 (AUTHOR) a.n.petrovskaya@vniim.ru, Behr, R.2 (AUTHOR), Kieler, O. F.2 (AUTHOR) |
| Source: | Measurement Techniques. 2020, Vol. 63 Issue 4, p295-300. 6p. |
| Subjects: | Pulse generators, Sine waves, Voltage, Josephson effect, Spectrum analyzers, Electronic modulators |
| Abstract: | A prototype Josephson quantum standard for synthesizing sine waves characterised by low-level harmonics and high accuracy was developed, opening up new possibilities for metrological support in the area of ac voltage. The standard includes a cryogenic probe with Josephson chips, a delta-sigma modulator, a pulse pattern generator, a compensation circuit, a spectrum analyzer, a video control unit, as well as special software. A capability of sine wave synthesis with an output voltage up to 130 mV RMS over a wide frequency range from 1 kHz to 100 kHz is demonstrated. Higher harmonics are suppressed below the noise floor up to 100 dBc. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | A prototype Josephson quantum standard for synthesizing sine waves characterised by low-level harmonics and high accuracy was developed, opening up new possibilities for metrological support in the area of ac voltage. The standard includes a cryogenic probe with Josephson chips, a delta-sigma modulator, a pulse pattern generator, a compensation circuit, a spectrum analyzer, a video control unit, as well as special software. A capability of sine wave synthesis with an output voltage up to 130 mV RMS over a wide frequency range from 1 kHz to 100 kHz is demonstrated. Higher harmonics are suppressed below the noise floor up to 100 dBc. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 05431972 |
| DOI: | 10.1007/s11018-020-01786-0 |
