SQUID-MAGNETOMETER BUILT AROUND HIGH- TEMPERATURE FILMS Russian patent published in 2002 - IPC

FIELD: electronic devices using high- sensitivity systems with superconducting quantum interference devices. SUBSTANCE: proposed SQUID-magnetometer built around high- temperature films has receiving circuit and communication circuit for introducing magnetic flux in measuring circuit that incorporates PT- SQUID with Josephson elements. Magnetometer is produced on one layer of high-temperature superconducting film, 10-100 mm thick, formed on insulating substrate with measuring circuit disposed in its center; part of measuring circuit having no Josephson elements directly contacts communication circuit; the latter has two differentially connected turns. Receiving circuit is disposed around part of communicating circuit located around measuring circuit; remaining part of substrate carries modulation and feedback circuit disposed around receiving circuit and part of communication circuit spaced apart from measuring circuit. EFFECT: facilitated manufacture, enhanced operating stability and reliability of magnetometer. 3 cl, 1 dwg