Difference between revisions of "Superconducting Quantum Interference Device- SQUID"
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=== Background === | === Background === | ||
SQUID is an extremely sensitive device used to measure the magnetic and paramagnetic properties of materials. | SQUID is an extremely sensitive device used to measure the magnetic and paramagnetic properties of materials. The SQUID sensor consists of a superconducting circuit separated by a parallel Josephson junctions. The sensor is connected to a pickup coil inside a superconducting magnet. When the sample is moved inside the magnet and pickup coil this triggers an quantum interference pattern in the squid detector which causes current to flow. Thus extremely small magnetic properties are amplified into a measurable voltage. | ||
=== Significance === | === Significance === | ||
Revision as of 15:33, 12 October 2010
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Background
SQUID is an extremely sensitive device used to measure the magnetic and paramagnetic properties of materials. The SQUID sensor consists of a superconducting circuit separated by a parallel Josephson junctions. The sensor is connected to a pickup coil inside a superconducting magnet. When the sample is moved inside the magnet and pickup coil this triggers an quantum interference pattern in the squid detector which causes current to flow. Thus extremely small magnetic properties are amplified into a measurable voltage.
Significance
Operation
External Links
see wikipedia:SQUID