Show pageOld revisionsBacklinksExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Elektromagnetické senzory ====== SQUID anteny\\ radiation resistance - antenna turnover frequency - turning point for the loop resistance and loop inductance\\ fa = Ra / 2pi La\\ The length of the coil l is recommended to be about 0.7-0.9 lc\\ l = dlzka cievky\\ lc = dlzka jadra\\ amorphous Metglas core - low noise\\ \\ MEDA offers sensors with sensitivity 25 mV/nT and noise at 10 kHz equal to 10 fT/√Hz (MGCH-2 sensor with core length about 32 cm) or at 0.2 Hz equal to 25 pT/√Hz (MGCH-3 sensor with core length of about 1 m) [33].