Home    Key and supplementary comparisons    Calibration and Measurement Capabilities - CMCs
The BIPM key comparison database
Refine your search
CMC AREA
CMCs General Physics (3)
PHYSICS
Photometry
Properties of detectors and sources
AC voltage, current, and power (3)
AC voltage ratio: imaginary component (3)
GEOGRAPHIC LOCATION
EURAMET (3)
United Kingdom (3)
Result of the search
Your query 'United Kingdom' produced 3 results New search

 
United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
AC voltage ratio: imaginary component. Inductive voltage divider, -0.001 to 0.001
Absolute expanded uncertainty (k = 2, level of confidence 95 %): 6.9E-08 to 2.1E-07
Comparison with reference divider
Frequency: 40 Hz to 5 kHz
Maximum RMS voltage: 4 V to 30 V
Approved on 06 August 2013
Internal NMI service identifier: 219
Uncertainty table
 
AC voltage ratio: imaginary component. Inductive voltage divider, -0.001 to 0.001
Absolute expanded uncertainty (k = 2, level of confidence 95 %): 2.1E-07 to 1.6E-05
Comparison with reference divider
Frequency: 5 kHz to 120 kHz
Maximum RMS voltage: 30 V
Approved on 07 February 2019
Internal NMI service identifier: 231
Uncertainty table
 
AC voltage ratio: imaginary component. Voltage transformer, -2.4 mrad to 2.4 mrad
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µrad: 30
IVD and mutual inductance bridge
Frequency: 50 Hz
Approved on 06 August 2013
Internal NMI service identifier: 241