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U.S. Department of Energy
Office of Scientific and Technical Information

Apparatus for detecting a magnetic anomaly contiguous to remote location by SQUID gradiometer and magnetometer systems

Patent ·
OSTI ID:6779995
A superconducting quantum interference device (SQUID) magnetic detection apparatus detects magnetic fields, signals, and anomalies at remote locations. Two remotely rotatable SQUID gradiometers may be housed in a cryogenic environment to search for and locate unambiguously magnetic anomalies. The SQUID magnetic detection apparatus can be used to determine the azimuth of a hydrofracture by first flooding the hydrofracture with a ferrofluid to create an artificial magnetic anomaly therein.
Assignee:
Dept. of Energy
Patent Number(s):
US 4437064
OSTI ID:
6779995
Country of Publication:
United States
Language:
English