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CMCs General Physics (3)
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Photometry
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AC voltage, current, and power (3)
AC voltage: AC (3)
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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
AC voltage: AC/DC transfer difference at lower voltage. AC-DC transfer standard, 0.001 V to 0.5 V
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µV/V: 6 to 796
Thermal converter "digital" bridge
Frequency range: 10 Hz to 1 MHz
Approved on 06 August 2013
Internal NMI service identifier: 141
Uncertainty table
 
AC voltage: AC/DC transfer difference at higher voltage. AC-DC transfer standard, thermal converter plus range extender, 10 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µV/V: 6 to 62
Thermal converter "digital" bridge
Frequency range: 10 Hz to 1 MHz
Approved on 06 August 2013
Internal NMI service identifier: 159
Uncertainty table
 
AC voltage: AC/DC transfer difference at medium voltage. AC-DC transfer standard, thermal converter, 1 V to 5 V
Relative expanded uncertainty (k = 2, level of confidence 95 %) in µV/V: 6 to 51
Thermal converter "digital" bridge
Frequency: 10 Hz to 1 MHz
Approved on 06 August 2013
Internal NMI service identifier: 132
Uncertainty table