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<p>This paper discusses the indigenously developed experimental model of 1–10&#xa0;g Kibble balance. Fabrication of setup is discussed in brief. The developed balance is tested for 1, 2, 5, and 10&#xa0;g. The current study has focused on the measurement of the induced voltage and the product <i>BL</i> in the velocity mode and the associated uncertainties. The test measurements carried out with the different masses have uncertainties lower than 1%. Different uncertainty components in the measurement of the induced voltage, product <i>BL</i> have been recognized, estimated, and discussed in detail. Finally, the combined standard uncertainty is estimated for the nominal mass values of 1, 2, 5, and 10&#xa0;g. Major uncertainty contributions influencing the measurement results in the present work have been discussed in detail. The setup can be used as a laboratory instrument at university level for determination of the Planck constant.</p>

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Performance Evaluation of the Experimental Model of 1 to 10 g Kibble Balance at CSIR-NPL

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Bushra Ehtesham,
  • Sumit Nehra,
  • Arun Saini,
  • Gaurav Kumar Saini,
  • Mohammed Ismail,
  • Thomas John,
  • Nidhi Singh

摘要

This paper discusses the indigenously developed experimental model of 1–10 g Kibble balance. Fabrication of setup is discussed in brief. The developed balance is tested for 1, 2, 5, and 10 g. The current study has focused on the measurement of the induced voltage and the product BL in the velocity mode and the associated uncertainties. The test measurements carried out with the different masses have uncertainties lower than 1%. Different uncertainty components in the measurement of the induced voltage, product BL have been recognized, estimated, and discussed in detail. Finally, the combined standard uncertainty is estimated for the nominal mass values of 1, 2, 5, and 10 g. Major uncertainty contributions influencing the measurement results in the present work have been discussed in detail. The setup can be used as a laboratory instrument at university level for determination of the Planck constant.