CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 10 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 100 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F
CCEM-K4.2017
MEASURAND : Capacitance ratio
NOMINAL VALUE : 100 pF : 10 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 10 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F.
Results are presented in A4 format in Summary Results (PDF file).
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 100 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F.
Results are presented in A4 format in Summary Results (PDF file).
CCEM-K4.2017
MEASURAND : Capacitance ratio
NOMINAL VALUE : 100 pF : 10 pF
FREQUENCY : ~ 1.6 kHz
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) in µF/F.
Results are presented in A4 format in Summary Results (PDF file).
| Metrology area, Sub-field | Electricity and Magnetism, Capacitance |
| Description | Comparison of 10 pF capacitance standards Optional: comparison of 100 pF capacitance standards |
| Time of measurements | 2017 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Capacitance at 10 pF (optional capacitance at 100 pF) |
| Parameters | Frequency at 1592 Hz (otptional frequency at 1233 Hz) / Voltage 100 V (10 V for optional 100 pF capacitance value) |
| Transfer device | The scheme adopted is that of a collapsing star consisting in carrying out simultaneously a large number of bilateral comparisons piloted by the BIPM. The capacitance standards of each of the participant are compared using the BIPM capacitance standards as the common references. |
| Comparison type | Key Comparison |
| Consultative Committee | CCEM (Consultative Committee for Electricity and Magnetism) |
| Conducted by | BIPM (Bureau International des Poids et Mesures) |
| Comments | This comparison is a repeat of CCEM-K4
Results published on 7 December 2018
Capacitance of nominal value 10 pF Capacitance of nominal value 100 pF Capacitance ratio at 100 pF : 10 pF
|
| Pilot institute |
BIPM
Bureau International des Poids et Mesures BIPM - International Organization |
| Contact person | P. Gournay +33 (0) 1 45 07 70 07 |
| Pilot laboratory | |
|---|---|
| BIPM |
Bureau International des Poids et Mesures, BIPM - International Organization, N/A |
| LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
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CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 10 pF
FREQUENCY : ~ 1.6 kHz
|
The key comparison reference value KCRV10pF was calculated as the weighted mean of the relative differences Δi from the nominal capacitor value of the laboratories Labi. |
| The degree of equivalence of laboratory i with respect to the reference value is given by a pair of terms, both expressed in µF/F: Di = (Δi - KCRV10pF) and its expanded uncertainty Ui (k = 2) where Ui = 2 (u2(Δi) - u10pF2)1/2. |
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 100 pF
FREQUENCY : ~ 1.6 kHz
|
The key comparison reference value KCRV100pF was calculated as the weighted mean of the relative differences Δi from the nominal capacitor value of the laboratories Labi. |
| The degree of equivalence of laboratory i with respect to the reference value is given by a pair of terms, both expressed in µF/F: Di = (Δi - KCRV100pF) and its expanded uncertainty Ui (k = 2) where Ui = 2 (u2(Δi) - u100pF2)1/2. |
CCEM-K4.2017
MEASURAND : Capacitance ratio
NOMINAL VALUE : 100 pF : 10 pF
FREQUENCY : ~ 1.6 kHz
|
The key comparison reference value KCRV10:1 was calculated as the weighted mean of the difference εi between the capacity ratio Labi and the BIPM. |
| The degree of equivalence of laboratory i with respect to the reference value is given by a pair of terms, both expressed in µF/F: Di = (εi - KCRV10:1) and its expanded uncertainty Ui (k = 2) where Ui = 2 (u2(εi) - u10:12)1/2. |
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 10 pF
FREQUENCY : ~ 1.6 kHz
The individual measurement results are presented in Section 10 of the CCEM-K4.2017 Final Report.
CCEM-K4.2017
MEASURAND : Capacitance
NOMINAL VALUE : 100 pF
FREQUENCY : ~ 1.6 kHz
The individual measurement results are presented in Section 10 of the CCEM-K4.2017 Final Report.
CCEM-K4.2017
MEASURAND : Capacitance ratio
NOMINAL VALUE : 100 pF : 10 pF
FREQUENCY : ~ 1.6 kHz
The individual measurement results are presented in Section 13 of the CCEM-K4.2017 Final Report.
