Biomagnetometer with selectable pickup coil array

Details Biomagnetometer with selectable pickup coil array Biomagnetometer with selectable pickup coil array

1994-05-23

1995-08-22

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

1286531, 34087031, 370112, 324247, G01R 33035, A61B 505, G08C 1506, H04J 300

Patent

active

054443733

ABSTRACT:
A biomagnetometer comprises an array of biomagnetic sensors, the array comprising a first plurality of magnetic field pickup coils, and a second plurality of detectors, each of which receives a pickup coil output from a pickup coil. There is a third plurality of signal processors, each of which receives an output from a detector, the third plurality of signal processors being fewer in number than the first plurality of pickup coils. The biomagnetometer further includes a selector that selects a subset of pickup coils, equal in number to the third plurality of signal processors, from the first plurality of pickup coils for signal processing by the signal processors. This biomagnetometer permits the placement of a very large array of relatively inexpensive pickup coils adjacent to a subject, and then processing information from subsets of that large array selected to optimize the gathering of data, while maintaining the cost of the signal processing electronics at a more economical level.

REFERENCES:
patent: 3241058 (1966-03-01), Quittner
patent: 4489274 (1984-12-01), Berlincourt
patent: 4700135 (1987-10-01), Hoenig
patent: 4771239 (1988-09-01), Hoenig
patent: 4977896 (1990-12-01), Robinson et al.
patent: 5047719 (1991-09-01), Johnson et al.
patent: 5093618 (1992-03-01), Goto et al.
Anon., "Squid Multiplexing Technique", IBM Technical Disclosure Bulletin, vol. 29, No. 6, pp. 2434-2435 (Nov. 1986).
Anon., "Squid Multiplexing Method", IBM Technical Disclosure Bulletin, vol. 29, No. 6, p. 2513 (Nov. 1986).
S. Erne et al., "The Positioning Problem in Biomagnetic Measurements: A Solution for Arrays of Superconducting Sensors," IEEE Trans. on Magnetics, vol. MAG-23, No. 2, pp. 1319-1322 (Mar. 1987).
H. E. Hoenig et al., "Biomagnetic multichannel system with integrated Squids and first order gradiometers operating in a shielded room," Cryogenics, vol. 29, pp. 809-813 (Aug. 1989).
Jukka Knuutila, "Multi-Squid Magnetometers for Neuromagntic Research," Cryogenics, vol. 30, pp. 1-8 (Sep. 1990).

Affiliated with

Also associated with

Rating

Biomagnetometer with selectable pickup coil array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biomagnetometer with selectable pickup coil array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biomagnetometer with selectable pickup coil array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2144424