High symmetry dc squid system

Details High symmetry dc squid system High symmetry dc squid system

G - Physics

01

R

G01R 33/035 (2006.01) G01R 19/00 (2006.01)

Patent

CA 2089181

A thin film dc SQUID and its driving electronic circuitry configured with very high symmetry. The SQUID loop is formed with four holes (24, 25, 26, 27) at the respective ends of crossed slits (22, 23). Each of these holes forms a single turn secondary (24, 25, 26, 27) for symmetrically arranged pairs of modulation coils and signal coils. The geometrical placement of the modulation coil transformers with respect to the signal coil transformers results in a device which nominally has no mutual inductance between the two groups of coils when the SQUID is biased for normal operation. The external driving circuit (75-85) is configured to preserve the highly balanced nature of the chip and forces equal magnitudes of current to flow in all four of the bias leads.

'invention est un SQUID à courant continu en couches minces doté de circuits d'attaque configurés avec une très grande symétrie. La boucle du SQUID comporte quatre orifices (24, 25, 26, 27) situés aux extrémités de deux fentes croisées (22, 23). Chacun de ces orifices constitue un secondaire d'une seule spire (24, 25, 26, 27) pour des paires de bobines de modulation et de bobines de signal montées symétriquement. L'emplacement géométrique des transformateurs à bobines de modulation par rapport aux transformateurs à bobines de signal donne un dispositif où l'inductance mutuelle nominale entre les deux groupes de bobines est nulle quand le SQUID est polarisé pour le mode de fonctionnement normal. Le circuit d'attaque externe (75-85) est configuré de façon à préserver la grande symétrie des caractéristiques de la puce et assurer l'égalité des intensités de courant dans les quatre conducteurs de polarisation.

Affiliated with

Also associated with

Rating

High symmetry dc squid system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High symmetry dc squid system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High symmetry dc squid system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1696648