SERF atom magnetometer-based magnetoencephalogram coil and registration quantitative analysis method

• Main Authors: GAO YANG, XU WEINAN, NING XIAOLIN
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The invention relates to a coil registration and quantitative analysis method of a magnetoencephalogram based on an SERF atom magnetometer, the relative position of a human brain and a sensor array is obtained by using an electrified coil, and a quantitative analysis method is provided to register a human brain coordinate system and a sensor array coordinate system to the same coordinate system. According to the main principle, an electrified coil is compared with a small magnetic dipole according to the Biot-Savart theorem, the position of the magnetic dipole is obtained by measuring a magnetic field generated by the magnetic dipole through a sensor array, and then registration is carried out. Wherein the position relation between the magnetic dipole and the human brain is obtained by a position tracker. According to the method, many random errors are increased, the random errors can be greatly reduced by adopting registration of multiple groups of coils, and the registration precision is greatly improved. 本