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The 2nd harmonic signal analysis in Ca-doped Y-123 superconductors: Sensing DC-fields down to 0.5nT
- Source :
-
Sensors & Actuators A: Physical . Aug2012, Vol. 183, p43-49. 7p. - Publication Year :
- 2012
-
Abstract
- Abstract: We have investigated the DC-field sensing performances of a series of Ca-doped polycrystalline YBa2Cu3O7−δ superconductors. The second harmonic signal generated by applying the AC and DC fields was processed in the designed magnetic sensors. Optimal magnetic sensor properties were achieved on the Ca-doped sample with composition Y0.94Ca0.06Ba2Cu3O7−δ . Small DC-fields down to 0.5nT could be detected with the transfer functions (dV/dB) of 23,300V/T. The dynamical range of the sensor can be extended up to ∼0.5Oe. The experiments were repeated to test the validity and reproducibility of the results presented. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09244247
- Volume :
- 183
- Database :
- Academic Search Index
- Journal :
- Sensors & Actuators A: Physical
- Publication Type :
- Academic Journal
- Accession number :
- 78032401
- Full Text :
- https://doi.org/10.1016/j.sna.2012.06.015