The first determination of the Planck constant with the joule balance NIM-2
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DOI: 10.1088/1681-7575/aa7a65
Abstract: The National Institute of Metrology (NIM, China) proposed a joule balance method to measure the Planck constant in 2006, and built the first prototype NIM-1 to verify its principle with a relative uncertainty of 8.9… read more here.
Keywords: joule balance; planck constant; nim;