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An instrument for automatic measurements of critical current of superconductors in pulse mode
Review of Scientific Instruments
An instrument has been developed for direct measurement of critical current and plotting of current-voltage (I-V) characteristics of superconductors in pulse mode. For these measurements, current pulses of increasing height are applied to sample and the voltage developed across the sample is monitored using a low noise voltage measuring circuit. Different sources of error responsible for limiting accuracy of pulse measurements techniques are discussed. A compensation network has been developeddoi:10.1063/1.1149611 fatcat:jpxl46czcfbtrnl6rsfohqvkeu