Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1987-04-10
1989-05-02
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Magnetometers
128653, 324201, 324225, 335216, G01R 33035, G01R 3316, A61B 505, G01N 2772
Patent
active
048272175
ABSTRACT:
Apparatus for performing sensitive magnetic measurements using cryogenically cooled instrumentation, wherein the instrumentation is separated from the bubbles present in a cryogenic cooling fluid. In one embodiment, the magnetic measurement instrumentation is placed in a tail piece joined by heat conducting bolts to a dewar containing a cryogenic fluid, and heat from the instrumentation is conducted to the cryogenic fluid heat sink by metallic strips reaching to the bolts. The cryogenic fluid does not contact the instrumentation directly, resulting in a significantly reduced level of noise in the instrumentation. The tail piece may also be evacuated to avoid pressure and temperature variations that may cause noise and affect the magnetic instrumentation.
REFERENCES:
patent: 3369174 (1968-02-01), Groenendyke et al.
patent: 3980076 (1976-09-01), Wikswo et al.
patent: 4071815 (1978-01-01), Zemanek
patent: 4437064 (1984-03-01), Overton, Jr. et al.
patent: 4523147 (1985-06-01), D'Angelo et al.
patent: 4646025 (1987-02-01), Martin et al.
patent: 4689559 (1987-08-01), Hastings et al.
Brochure of Biomagnetic Technologies Inc., "Introduction to Biomagnetic Measurements and Instruments", 7 pages, published prior to 4/10/86.
D. E. Farrell et al., "Magnetic Measurement of Human Iron Stores," IEEE Trans. on Magnetics, vol. MAG-16, Sep. 1980, pp. 818-823.
Brittenham et al., "Diagnostic Assessement . . . ", Il Nuovo Cimento, vol. 2, 1983, pp. 567-581.
D. E. Farrel et al., "A Clinical System for Accurate Assessment of Tissue Iron Concentration", Il Nuovo Cimento, vol. 2, 1983, pp. 583-593.
Wolfgang Ludwig et al., "Eisenuberladung der Leber-eine Heraus-forderung fur die SQUID-Messtechnik," Postprint of Dornier GmbH (with English translation), dated Jan. 1986, pp. 22 and 23.
Biomagnetic Technologies, Inc.
Garmong Gregory O.
Strecker Gerard R.
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