Summary
A full set of facilities for transport characterisation of HTS as well as a set of crucial measurements are presented which point out the possible sources of errors of the «home-made» apparatus. The main characteristics are the automatisation of the whole data acquisition, the appositely designed hardware and software with suitable error messages, the on-line statistical treatment of data, the possibility of on-line optimisation of the current pulses and finally the availability of quasi-static temperature conditions in the R vs. T curves. The d.c. four-point method with bipolar d.c. pulsed current is employed. The experimental techniques chosen to obtain specific metrological achievements are discussed.
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Colombo, S., Gerbaldo, R., Ghigo, G. et al. Apparatus for transport characterisation of high-T c superconductors. Il Nuovo Cimento D 16, 1877–1884 (1994). https://doi.org/10.1007/BF02462188
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DOI: https://doi.org/10.1007/BF02462188