Superconductive gradiometer for weak magnetic-field measurement, and method of producing same

摘要

The invention relates to a superconductive gradiometer for measuring weak magnetic fields for a measuring device with a superconducting quantum interference device (SQUID) of a gradiometer coil, an input coupling coil, a cryogenic system and an evaluating device, in which the gradiometer is used for detecting the well- defined gradient of a magnetic field to be measured in order to transform it into the SQUID with the aid of the input coupling coil, the coil of the gradiometer of superconductive wire (15) being arranged around a carrier body (10) with at least one wire turn (16) in grooves (11, 12) cut into this carrier body (10) and the grooves (11, 12) being coated with a superconductive thin film (13) and the thin film (13) being interrupted in circulating grooves (11), furthermore a method for producing an aforementioned superconductive gradiometer. …IMAGE…