التفاصيل البيبلوغرافية
| العنوان: |
AC—DC Transfer Standard Measurements and Generalized Compensation With the AC Josephson Voltage Standard. |
| المؤلفون: |
Kieler, Oliver F. O.1 oliver.kieler@ptb.de, Pinheiro Landim, Regis2 rplandim@inmetro.gov.br, Benz, Samuel P.3 samuel.benz@nist.gov, Dresseihaus, Paul D.3, Burroughs Jr., Charles J.3 |
| المصدر: |
IEEE Transactions on Instrumentation & Measurement. Apr2008, Vol. 57 Issue 4, p791-796. 6p. 2 Charts, 5 Graphs. |
| مصطلحات موضوعية: |
*TECHNOLOGY, ELECTRONIC circuit design, JOSEPHSON effect, SUPERCONDUCTORS, ELECTRIC potential, ELECTRONIC probes |
| مستخلص: |
We present ac-dc transfer standard measurements using the National Institute of Standards and Technology's pulse-driven ac Josephson voltage standard source. We have investigated the frequency-dependence for several output voltages up to 200 mV for frequencies from 2.5 to 100 kHz. We found that, as the frequency increases, the ac-dc differences for the two arrays on the same chip do not agree. We explored this deviation in ac-dc difference for the two arrays by investigating different configurations of the probe cabling and wiring, chip carriers, and on-chip circuit design. We found that the circuit design produced the greatest improvement, particularly at the highest frequency (100 kHz), where the deviation in ac-dc difference was reduced by more than 60%. In this paper, we also demonstrate tenfold higher output voltages and improved operating margins for arbitrary (nonsinusoidal) waveforms. These enhancements were accomplished by implementing a more general current bias to the arrays having the same harmonic content as that of the synthesized arbitrary waveform. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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