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Calibration and Measurement Capabilities
Electricity and Magnetism
In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a2 + b2]1/2
 
Result of the search
Your selection : Electricity and Magnetism
 
Singapore, NMC, A*STAR (National Metrology Centre, Agency for Science, Technology and Research)
Complete CMCs in Electricity and Magnetism for Singapore (.PDF file)
AC current up to 100 A: meter. Multimeter, ammeter, multifunction transfer standard, 0.0001 A to 10 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 35 to 440
AC-DC difference
Frequency: 10 Hz to 10 kHz
Approved on 19 March 2012
Internal NMI service identifier: NMC, A*STAR/LF112
Uncertainty table
 
AC current up to 100 A: source. Multifunction calibrator, transconductance amplifier, 0.0002 A to 10 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 35 to 430
AC-DC difference
Frequency: 10 Hz to 10 kHz
Measurement uncertainty is load dependent
Approved on 19 March 2012
Internal NMI service identifier: NMC, A*STAR/LF111
Uncertainty table
 
AC high voltage: meters. AC high voltage meter, dedicated set-up for high voltage measurements (resistive and capacitive dividers), 1 kV to 10 kV
Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 16
Comparison with reference ratio transformer
Frequency: 50 Hz
Approved on 25 August 2008
Internal NMI service identifier: NMC, A*STAR/LF122
 
AC high voltage: meters. AC high voltage meter, dedicated set-up for high voltage measurements (resistive and capacitive dividers), 10 kV to 30 kV
Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 66
Comparison with reference ratio transformer
Frequency: 50 Hz
Approved on 25 August 2008
Internal NMI service identifier: NMC, A*STAR/LF123
 
AC high voltage: meters. AC high voltage meter, dedicated set-up for high voltage measurements (resistive and capacitive dividers), 30 kV to 100 kV
Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 160
Comparison with reference ratio transformer
Frequency: 50 Hz
Approved on 25 August 2008
Internal NMI service identifier: NMC, A*STAR/LF124
 
AC high voltage: sources. High voltage AC source, 1 kV to 10 kV
Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 16
Comparison with reference ratio transformer
Frequency: 50 Hz
Approved on 25 August 2008
Internal NMI service identifier: NMC, A*STAR/LF119


 
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