7. Conclusion
SQUID magnetometers are indisputably the most sensitive magnetic field sensors. However, the commercial success of helium-operated devices is limited to a few niches (magnetoencephalographic mapping, susceptometry, NMR, metrology, etc.) due to their construction and maintenance costs.
SQUIDs in critical high-temperature superconductors, involving reduced cryogenics, are particularly interesting despite their lower sensitivity. High-temperature superconductor technology has evolved considerably in recent years, as have the electronics associated with SQUIDs. The sensitivity of magnetometers, mainly etched in YBaCuO films, has been improved by a factor of around 100; encapsulated devices integrating a HT SQUID c , modulating inductors and a heating element, are now commercially available. However, further progress is needed...
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Conclusion
Bibliography
References
Books and magazines
Superconducting Electronics. Edited by Harold Weinstock and Martin Nisenoff NATO ASI Series. Series F: Computer and Systems Sciences, Vol. 59 (1989).
Superconducting Devices. Edited by Steven T. Ruggiero and David A. Rudman. Academic Press, Inc, New York (1990).
The New Superconducting Electronics. Edited by Harold Weinstock and Richard W. Ralston. NATO ASI Series....
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