Study on Weak Signal Detecting Technology in High-Temperature Superconducting Resistance Measurement


For detecting the critical transition temperature of the high-temperature superconducting material, a system using a weak signal detection approach - lock-in amplifier to acquire the R-T signals under strong noises, is constructed. The article introduces the principle of the system and focuses on the design of the whole system. The chip-AD630 from the AD… (More)
DOI: 10.1109/ISCID.2009.158


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