10 papers
Design and Initial Test of the Weighing Unit for Tsinghua Tabletop Kibble Balance
Weibo Liu, Nanjia Li, Lushuai Qian +4
This paper presents a customized weighing unit developed for the Tsinghua tabletop Kibble balance. The system is based on a flexure hinge mechanism sourced from a commercial weighi…
An Optical System for Monitoring Coil Parasitic Motion and Mass Position for Tsinghua Tabletop Kibble Balance
Weibo Liu, Kang Ma, Nanjia Li +3
This paper presents a novel seven-channel optical measurement system for monitoring coil parasitic motion and mass position in the Tsinghua Tabletop Kibble balance. The system empl…
Recent Advances in Tabletop Kibble Balance -- KBmini
Nanjia Li, Weibo Liu, Kang Ma +4
This paper presents recent advances in the KBmini Kibble balance, a tabletop system for E2-accuracy mass calibration up to 1 kg. The profile is characterized by manually se…
Status of the Tsinghua Tabletop Kibble Balance
Shisong Li, Weibo Liu, Nanjia Li +7
This paper reports on the status of the Tsinghua tabletop Kibble balance experiment, aiming to deliver a mass calibration instrument for kilogram realizations in accordance with th…
Design of a Miniature Kibble Balance for Kilogram-Scale Mass Calibration -- KBmini
Shisong Li, Nanjia Li, Weibo Liu +3
Tabletop version Kibble balances are a significant developing trend for mass realizations following the revised International System of Units. A key innovation through the miniatur…
An Approach for Restoring Magnetic Field Uniformity in Openable BIPM-Type Kibble Balance Magnets
Nanjia Li, Weibo Liu, Yongchao Ma +3
The Kibble balance realizes the kilogram by linking mechanical and electrical quantities via a magnet system. In an improved BIPM-type magnet design by Tsinghua University, an open…
Precision Control of Resistive Power in Kibble Balance Coils: An Advanced Method for Minimizing Temperature-Related Magnetic Errors
Weibo Liu, Stephan Schlamminger, Shisong Li
Temperature changes affect the coercivity of permanent magnets, thereby impacting the factor and potentially introducing systematic errors in Kibble balance measurements. Whil…
Updates on the Tsinghua Tabletop Kibble Balance
Shisong Li, Yongchao Ma, Kang Ma +7
With the adoption of the revised International System of Units (SI), the Kibble balance has become a pivotal instrument for mass calibrations against the Planck constant, . One…
A Compact Magnet System for the Tsinghua Tabletop Kibble Balance
Yongchao Ma, Nanjia Li, Weibo Liu +4
Although the so-called magnetic geometrical factor, , of a Kibble balance does not appear in the Kibble equations, it offers the precision link between electrical and mechanica…
A Determination of the Local Gravitational Acceleration for the Tsinghua Tabletop Kibble Balance
Weibo Liu, Nanjia Li, Yongchao Ma +5
The Kibble balance requires a measurement of the local gravitational acceleration, , with a typical relative measurement uncertainty of . In this paper, the determinati…