Method and apparatus for imaging microscopic spatial variations

Electricity: measuring and testing – Magnetic – Magnetometers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324201, 324224, 324235, 324239, 324262, 505162, 505846, G01R 33035, G01R 3312, G01N 2772

Patent

active

054914116

ABSTRACT:
A magnetic flux microscope that measures the magnetic field about a sample surface. The apparatus uses a thin-film superconducting quantum interference device (SQUID) as the scanning device. Magnetic shielding is provided about the SQUID and is held stationary relative to the SQUID. The apparatus and method provides a very high magnetic image of the sample with a very high spatial and field resolution.

REFERENCES:
patent: 3454875 (1969-07-01), Bol et al.
patent: 4004217 (1977-01-01), Giffard
patent: 4465975 (1984-08-01), Porter
patent: 4492923 (1985-01-01), Bryam
patent: 4588947 (1986-05-01), Ketchen
patent: 4591787 (1986-05-01), Hoenig
patent: 4613816 (1986-09-01), Zeamer
patent: 4613817 (1986-09-01), Hoenig
patent: 4771239 (1988-09-01), Hoenig
patent: 4801882 (1989-01-01), Daalmans
patent: 4987367 (1991-01-01), Ishikawa et al.
patent: 5053706 (1991-10-01), Ohkawa
patent: 5103682 (1992-04-01), Moreland
patent: 5134368 (1992-07-01), Otaka et al.
patent: 5184072 (1993-02-01), Yuyama et al.
patent: 5248941 (1993-09-01), Lee et al.
patent: 5293119 (1994-03-01), Podney
Nave et al; Micromagnetic Susceptometer; Rev. Sci. Instrum. 51(5) May 1980, pp. 591-596.
Pelizzone et al; A SQUID Susceptometer for Fields up to 8.5 Tesla; Appl. Phys. 24, No. 4, Apr. 1984, pp. 375-379.
"On Inhomogeneities in the Magnetization of Ferromagnetic Materials," Phys. Rev. vol. 38, pp. 1903-1905, Nov. 1931, authored by F. Bitter.
"The Structure of the Superconductors in the Intermediate State," J. Phys., vol. 9, pp. 202-210, Jun. 1945, authored by A. Shalnikov.
"Scanning Hall Probe Microscopy of a Vortex Field and Fluctuations in La.sub.1.85 Sr.sub.0.15 CuO.sub.4 ", authored by A. M. Chang et al., submitted to Phys. Rev. Lett.
"Observation of Magnetic Domains by the Kerr Effect," Phys. Rev., vol. 82, pp. 119-120, Apr. 1951 authored by H. J. Williams et al.
"Magnetic Imaging by Force Microscopy with 1000 A Resolution," Appl. Phys. Lett., vol. 50, pp. 1455-1457, May 1987 authored by Y. Martin et al.
"Magnetic Field Observation of a Single Flux Quantum by Electron-Holographic Interferometry," Phys. Rev. Lett., vol. 62, pp. 2519-2522, May 1989, authored by T. Matsuda et al.
"Microsquid: A Close Spaced Four Channel Magnetometer", Advances in Biomagnetism, Plenum, New York: S. J. Williamson, 1989, pp. 677-679, authored by D. S. Buchanan et al.
"Gas Floating Technique for Detection of Trapped Flux Quanta." Physics B, vol. 165, pp. 87-88, Aug. 1990 authored by Q. Geng et al.
"A Single-Chip SQUID Magnetometer," IEEE Transactions on Electron Devices., vol. 35, No. 12, Dec. 1988 authored by N. Fujimaki et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for imaging microscopic spatial variations 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 and apparatus for imaging microscopic spatial variations , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for imaging microscopic spatial variations will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-242736

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.