Gradiometer configuration type brain magnetic measurement system based on SERF atom magnetometer

A technology of atomic magnetic strength and measurement system, which is applied in magnetic field measurement, diagnostic recording/measurement, magnetic field size/direction and other directions using magneto-optical equipment, can solve the problem of low operation and maintenance costs, and achieve offsetting environmental magnetic field noise, The effect of improving the signal-to-noise ratio

Active Publication Date: 2020-06-16
BEIHANG UNIV
View PDF13 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is: aiming at the shortcomings of the existing SERF magnetometer-based magnetic brain measurement system, a gradiometer-configured magnetic brain measurement system based on SERF atomic magnetometer is provided. Compared with the SQUID magnetic brain measurement system, It can achie

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gradiometer configuration type brain magnetic measurement system based on SERF atom magnetometer
  • Gradiometer configuration type brain magnetic measurement system based on SERF atom magnetometer
  • Gradiometer configuration type brain magnetic measurement system based on SERF atom magnetometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] like figure 1 As shown, the present invention is based on the SERF atomic magnetometer gradiometer configuration type magnetoencephalography measurement system, comprising: a magnetic shielding room 1, a magnetic brain measurement cap 2 of the gradiometer configuration mode, a SERF atomic magnetometer gradiometer sensor array 3, SERF atomic magnetometer reference sensor array 4 , reference sensor fixed panel 5 , brain magneto-induced stimulation module 6 , data acquisition and processing module 7 .

[0029] The specific implementation process is as follows: The gradiometer-configured magnetoencephalometric measurement based on the SERF atomic magnetometer is carried out in a magnetically shielded room. The subject wears the magnetic brain measurement cap 2 suitable for the gradiometer configuration mode on the head, and receives the auditory, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a gradiometer configuration type magnetoencephalogram measurement system based on an SERF atom magnetometer. The gradiometer configuration type magnetoencephalogram measurement system comprises a magnetic shielding room, a brain magnetic measurement cap suitable for a gradiometer configuration mode, an SERF atom magnetometer gradiometer sensor array, an SERF atom magnetometer reference sensor array, a brain magnetic induction stimulation system and a data acquisition and processing system. Compared with a traditional SQUID (superconducting quantum interferometer) magnetoencephalogram measurement system which is high in price, high in operation cost, large in size and heavy in structure, the magnetoencephalogram measurement system based on the SERF atom magnetometeris flexible in structure, the operation cost can be ignored, and magnetoencephalogram measurement the same as that of the SQUID can be achieved. And secondly, compared with other brain magnetic systems which only use the SERF atom magnetometer to perform single-direction magnetic field measurement, the gradiometer configuration type magnetoencephalogram measurement system based on the SERF atom magnetometer can more effectively counteract the environmental magnetic field noise and improve the signal-to-noise ratio.

Description

technical field [0001] The invention relates to the field of biomedical instruments, in particular to a device system using an atomic magnetometer, such as a SERF (Spin-Exchange Relaxation-Free, no spin-exchange relaxation) atomic magnetometer, for gradient brain magnetic measurement. Background technique [0002] Because of its high time resolution and spatial resolution, magnetoencephalography has important application value in clinical and brain science research. The magnetoencephalography technology based on superconducting quantum interference device (SQUID) is mature, but its wide application is limited due to its high price, high maintenance and operation cost, and bulky structure. [0003] Nowadays, SERF magnetometers have been able to achieve the same sensitivity as SQUID devices, so MEG systems based on SERF magnetometers are gradually developing. The magnetoencephalography system based on SERF magnetometer can arrange SERF magnetometer in various positions of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B5/04A61B5/00G01R33/032
CPCA61B5/6803A61B5/246G01R33/032
Inventor 宁晓琳安楠曹富智房建成韩邦成
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap