Method for calibrating SQUID gradiometers of an arbitrary order

Details Method for calibrating SQUID gradiometers of an arbitrary order Method for calibrating SQUID gradiometers of an arbitrary order

1990-03-26

1991-01-08

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Calibration

324248, 505845, G01R 3500

Patent

active

049839128

ABSTRACT:
In a method for calibrating multi-channel SQUID systems having gradiometers of an arbitrary order, calibration coils, each having the same number of ampere turns are symmetrically arranged at identical distances between the parallel coil planes with respect to every gradiometer coil, so that every gradiometer coil is penetrated by a common, oppositely directed magnetic field generated by the calibration coils. The field that the calibration coils produce at the locations of the gradiometer coils are numerically calculated to obtain a net gradient field value which is divided by the measured voltage at the output of the allocated SQUID electronics in order to calculate the calibration factor.

REFERENCES:
patent: 3980076 (1976-09-01), Wikswo, Jr. et al.
patent: 4079730 (1978-03-01), Wikswo, Jr. et al.
patent: 4109199 (1978-08-01), Ball et al.
patent: 4349781 (1982-09-01), Vozoff
patent: 4549135 (1985-10-01), Vaidya
patent: 4646025 (1987-02-01), Martin et al.
Ribeiro et al., "Squid Arrays for Simultaneous Magnetic Measurements: Calibration and Source Localization Performance", pp. 551-560, I.E.E.E. Transactions on Biomedical Engr., vol. 35, No. 7, 12/1988.
Romani et al., "Biomagnetic Instrumentation", Rev. Sci. Instrum., pp. 1815-1845, vol. 53, No. 12, 12/1982.
Patent Abstracts of Japan (P-483), Aug. 31, 1985.

Affiliated with

Also associated with

Rating

Method for calibrating SQUID gradiometers of an arbitrary order does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for calibrating SQUID gradiometers of an arbitrary order, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for calibrating SQUID gradiometers of an arbitrary order will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-937104