Published February 10, 1988 | Version v1
Patent Metadata-only

Method of operating an electromagnet arrangement

Creators

Description

A method is described for operating an electromagnet arrangement comprising a main electromagnet and a number of correction coils for applying correction fields to the field produced by the main electromagnet to produce a resultant desired homogeneous magnetic field in a given volume. The method comprises obtaining the least squares fit values for the correction coil currents. If the required current in any coil lies outside a range of permissible values for that coil current a special procedure is described to find the selection of coil currents providing the lowest squared deviation between the desired and actual fields consistent with the permissible currents in the coils. (author)

Availability note (English)

Available from The Patent Office, 25 Southampton Buildings, London, WC2A 1AY.

Additional details

Publishing Information

Imprint Pagination
5 p.
IPC:
Int. Cl. G01n 24/06.
IPC
Int. Cl. G01n 24/06.
Patent number
GB patent document 2193578/A/

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
19095482
Subject category
S62: RADIOLOGY AND NUCLEAR MEDICINE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ELECTROMAGNETS; MAGNET COILS; MATHEMATICAL MODELS; MATRICES; NMR IMAGING; SPECIFICATIONS
Descriptors DEC
DIAGNOSTIC TECHNIQUES; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; MAGNETS

Optional Information

Secondary number(s)
GB priority 8619012.