8 papers
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…
Self-Error Correcting Method for Magnetic-Array-Type Current Sensors in Multi-Core Cable Applications
Xiaohu Liu, Keyu Hou, Kang Ma +7
Data-driven methods enable online assessment of error states in magnetic-array-type current sensors, and long-term measurement stability can be enhanced through further self-error…
Metering Error Estimation of Fast-Charging Stations Using Charging Data Analytics
Kang Ma, Xiulan Liu, Xi Chen +5
Accurate electric energy metering (EEM) of fast charging stations (FCSs), serving as critical infrastructure in the electric vehicle (EV) industry and as significant carriers of ve…
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 Bi-polar Current Source with High Short-term Stability for Tsinghua Tabletop Kibble Balance
Kang Ma, Xiaohu Liu, Wei Zhao +2
A high-precision current source, capable of supporting weighing measurements with a relative uncertainty at the level, is essential for Kibble balance experiments. Howeve…
A Self-Healing Magnetic-Array-Type Current Sensor with Data-Driven Identification of Abnormal Magnetic Measurement Units
Xiaohu Liu, Kang Ma, Jian Liu +4
Magnetic-array-type current sensors have garnered increasing popularity owing to their notable advantages, including broadband functionality, a large dynamic range, cost-effectiven…