Measuring remanent magnetic moment of test masses by a compound pendulum in a magnetic shielding room
In space-borne gravitational wave detection, the remanent magnetic moment of test masses is one of the primary contributors to residual acceleration noise. During the ground test phase, precisely measuring the remanent magnetic moment of the test masses under an ultra-weak magnetic field is crucial for assessing its suitability for the space mission. In this work, we developed a compound pendulum apparatus within the magnetic shielding room, utilizing the pendulum's periodic motion to convert the remanent magnetic moment into a modulated magnetic field. The measurement resolution of remanent magnetic moment reaches a level of 0.2 nAm2.
Authors
- Yuanyang Yu
- Shengxin Lin (ORCID: https://orcid.org/0000-0002-1537-4035)
- Butian Zhang (ORCID: https://orcid.org/0000-0002-9959-3912)
- Shun Wang (ORCID: https://orcid.org/0000-0001-6890-8371)
- Zebing Zhou (ORCID: https://orcid.org/0000-0002-6178-1520)
- Donghua Pan (ORCID: https://orcid.org/0000-0002-7403-1542)
- Yi Yan (ORCID: https://orcid.org/0009-0008-1612-9948)
- Yancong Huo
Institutions
- Harbin Institute of Technology (CN)
- Huazhong University of Science and Technology (CN)
Publication Details
- Journal
- Review of Scientific Instruments
- Published
- 2025-02-01
- DOI
- https://doi.org/10.1063/5.0248904
- Citations
- 3
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- National Natural Science Foundation of China
- National Natural Science Foundation of China-Yunnan Joint Fund
- National Key Research and Development Program of China