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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.16405 |
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| _version_ | 1866912006390415360 |
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| author | Ma, Kang Liu, Xiaohu Zhao, Wei Huang, Songling Li, Shisong |
| author_facet | Ma, Kang Liu, Xiaohu Zhao, Wei Huang, Songling Li, Shisong |
| contents | A high-precision current source, capable of supporting weighing measurements with a relative uncertainty at the $10^{-9}$ level, is essential for Kibble balance experiments. However, most current sources utilized in Kibble balances to date are homemade and not commercially available. In this paper, we introduce a digital-feedback, two-stage current source designed for the Tsinghua tabletop Kibble balance, relying solely on commercially available sources and voltmeters. A high-resolution, small-range current source is employed to digitally compensate for current output fluctuations from a large-range current source. Experimental tests show the proposal can offer an easy realization of a current source with nA/A stability to support Kibble balance measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_16405 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Bi-polar Current Source with High Short-term Stability for Tsinghua Tabletop Kibble Balance Ma, Kang Liu, Xiaohu Zhao, Wei Huang, Songling Li, Shisong Instrumentation and Detectors Applied Physics A high-precision current source, capable of supporting weighing measurements with a relative uncertainty at the $10^{-9}$ level, is essential for Kibble balance experiments. However, most current sources utilized in Kibble balances to date are homemade and not commercially available. In this paper, we introduce a digital-feedback, two-stage current source designed for the Tsinghua tabletop Kibble balance, relying solely on commercially available sources and voltmeters. A high-resolution, small-range current source is employed to digitally compensate for current output fluctuations from a large-range current source. Experimental tests show the proposal can offer an easy realization of a current source with nA/A stability to support Kibble balance measurements. |
| title | A Bi-polar Current Source with High Short-term Stability for Tsinghua Tabletop Kibble Balance |
| topic | Instrumentation and Detectors Applied Physics |
| url | https://arxiv.org/abs/2408.16405 |