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).

Comparison
Comparison close
BIPM comparison
Linked comparison
CCEM-K4.2017
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

CCEM-K4.2017 Registration and progress form

CCEM-K4.2017 Technical Protocol, 36 pp.

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
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
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

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.
KCRV10pF = -0.010 × 10-6 with an associated weighted uncertainty  of
u10pF = 0.011 × 10-6.

 

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.
KCRV100pF = -0.033 × 10-6 with an associated weighted uncertainty  of
u100pF = 0.011 × 10-6.

 

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 Laband the BIPM.
KCRV10:1 = -0.016 × 10-6 with an associated weighted uncertainty  of
u10:1 = 0.008 × 10-6.

 

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.