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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, Radio frequency measurements
 
India, NPLI (National Physical Laboratory of India)
Complete CMCs in Electricity and Magnetism for India (.PDF file)
Radio frequency power: absolute power in coaxial line. Power meter, power source, 0.01 mW to 100 mW
Relative expanded uncertainty (k = 2, level of confidence 95%) in mW/W: 3 to 15
Direct measurement or comparison
Frequency: 1 MHz to 18 GHz
Connector: N, APC-7
Approved on 10 November 2014
Internal NMI service identifier: NPLI/69
Uncertainty table
 
Radio frequency power: calibration factor and efficiency in coaxial line. Thermistor, barretter mounts and power sensor, 100 %
Relative expanded uncertainty (k = 2, level of confidence 95%) in %: 0.2 to 1.0
Direct comparison
Frequency: 10 MHz to 18 GHz
Connectors: N, APC-7
Approved on 10 November 2014
Internal NMI service identifier: NPLI/71
 
Radio frequency voltage and current: RF voltage meters. RF voltage meter, 0.001 V to 10 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in mV/V: 17 to 35
Comparison
Frequency: 1 MHz to 1 GHz
Approved on 10 November 2014
Internal NMI service identifier: NPLI/83
Uncertainty table
 
Radio frequency voltage and current: RF voltage sources. RF generator, 0.001 V to 1 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in mV/V: 17 to 35
Comparison
Frequency: 1 MHz to 1 GHz
Impedance: 50
Approved on 10 November 2014
Internal NMI service identifier: NPLI/81
Uncertainty table
 
Radio frequency voltage and current: RF-DC difference. RF micropotentiometers, 1 mV to 500 mV
Relative expanded uncertainty (k = 2, level of confidence 95%) in mV/V: 17 to 25
Comparison
Frequency: 1 MHz to 1 GHz
Approved on 10 November 2014
Internal NMI service identifier: NPLI/77
Uncertainty table
 
Radio frequency voltage and current: RF-DC difference. Thermal voltage converter, 0.25 V to 50 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in mV/V: 17
Comparison
Frequency: 1 MHz to 1 GHz
Impedance: 50
Approved on 10 November 2014
Internal NMI service identifier: NPLI/79
Uncertainty table


 
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