Abstract
We have been investigating biomagnetic field measurements using magnetoresistive (MR) device-based flux sensors since 2014. The MR device is based on the same technology as the magnetic heads of hard disk drives and provides a compact, affordable, and cryogen-free biomagnetic measurement system. The sensitivity of the sensor is expanded by a flux concentrator made of high-permeability material, and the magnetic field resolution of the sensor is several picotesla at 1 Hz. Magnetocardiographic signals and signals from neural activities were successfully obtained using sensor arrays composed of MR device-based flux sensors.
Author supplied keywords
Cite
CITATION STYLE
Adachi, Y., Kawabata, S., Tatsuoka, T., & Terazono, Y. (2022). Emerging MR sensors for biomagnetic measurements. In Flexible High Performance Magnetic Field Sensors: On-Scalp Magnetoencephalography and Other Applications (pp. 299–312). Springer International Publishing. https://doi.org/10.1007/978-3-031-05363-4_16
Register to see more suggestions
Mendeley helps you to discover research relevant for your work.
