A highly sensitive galvanometer operating at liquid-nitrogen temperature for direct and low-frequency current measurements was developed on the basis of a HTSC SQUID. The direct-current sensitivity of the galvanometer is approximately 0.5 nA at an internal resistance of about 20 Ω. Its energy resolution in the white noise region is 2 × 10-21 J/Hz.
- energy resolution
- High-T SQUID
- superconducting shield
ASJC Scopus subject areas
- Condensed Matter Physics
- Physics and Astronomy (miscellaneous)
- Electronic, Optical and Magnetic Materials