SQUID (Sperconducting QUantum Interference Device) is a very sensitive tool for measuring magnetic flux.

 

SQUID is the most sensitive magnetometer to-date that uses quantum phenomena to detect magnetic flux. The SQUID is made of a superconducting ring and 2 parallel Josepheson junctions. Using the effects of flux quantization and josephson tunneling the SQUID converts magnetic flux into measurable voltage.

BINASITE-17