A DSP-Based Compensation System for Residual Field Suppression Within a Magnetically Shielded Cylinder
2023 3rd International Conference on Computer Science, Electronic Information Engineering and Intelligent Control Technology (CEI)(2023)
Abstract
To achieve ultra-high sensitivity measurement of the optically-pumped magnetometer (OPM), the ambient magnetic field should be well suppressed to construct a near zero-field environment. In this paper, a DSP-based active compensation system has been developed to improve the shielding performance of the magnetically shielded cylinder (MSC). Meanwhile, we introduce the particle swarm optimization (PSO) algorithm to obtain the optimal PID gains. The experimental results show the PSO-PID method has better compensation performance than the classical PID method. In the time domain, the DC component and fluctuation of the residual field can be suppressed to 0 pT and 5.9 pT, respectively, which indicates the feasibility of our active compensation system.
MoreTranslated text
Key words
digital signal processor (DSP),active compensation,optically-pumped magnetometer (OPM),partical swarm optimization (PSO)
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined