Impact Factor:6.1

DOI number:10.1016/j.measurement.2026.120793

Affiliation of Author(s):仪器科学与光电工程学院

Teaching and Research Group:大科学装置研究院

Journal:Measurement

Key Words:Active magnetic compensation (AMC); Delay compensation; Optical pump magnetometer (OPM); Smith predictor and dual-estimation disturbance observer (SDEDO)

Abstract:The high-precision measurement for the cardiac magnetic field signal is highly sensitive to magnetic fluctuations within a magnetic shielding device. The active magnetic compensation (AMC) is an effective method for suppressing these disturbances. Due to the measurement delay of the feedback sensor, the suppression of magnetic field fluctuations is insufficient. A high-precision magnetic field disturbance suppression method based on delay and interference compensation is proposed in this paper. This method employs a time delay compensation system based on the Smith predictor (SP) to address th

Co-author:Haitao Li, Haifeng Zhang, Haoan Wang

First Author:Xuechun Wang

Indexed by:Journal paper

Discipline:工学

First-Level Discipline:Instrumentation Science and Technology

Document Type:J

Volume:270

Page Number:120793

ISSN No.:0263-2241

Translation or Not:no

Date of Publication:2026-04-01