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The BIPM key comparison database
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METROLOGY AREA
Electricity and Magnetism (20)
TYPE
Key comparisons (18)
Supplementary comparisons (2)
STATUS
Approved for equivalence (11)
Approved for provisional equivalence (5)
Approved (2)
Measurements in progress (2)
ORGANISATIONS
CCEM (20)
Result of the search
Your query 'Japan' produced 20 results New search

  CCEM- K1 Comparison of resistance standards
1990 - 1991
Comparison type, Field   Key comparison in Electricity and Magnetism, Resistance
Resistance: 1 ohm and 10 kiloohms
Status   Approved for provisional equivalence
  CCEM.RF- K5.b.CL Reflection coefficient / S parameters in type N connectors
2003 - 2006
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 2 GHz to 18 GHz
Status   Approved for equivalence, Results available
  CCEM.RF- K7.a.F.2 Antenna power flux density and electric field strength
1991 - 1999
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 2.45 GHz and 10 GHz
Status   Approved for provisional equivalence
  CCEM.RF- K8.CL Power in 50 ohm coaxial lines
1998 - 2001
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Calibration factor of type-N and type-PC7 thermistor mounts
Parameter(s)   Frequency: 10 MHz, 50 MHz, 1 GHz, 4 GHz, 8 GHz, 12 GHz, 15 GHz, and 18 GHz
Status   Approved for equivalence, Results available
  CCEM.RF- K16.CL Measurement of reflection coefficient
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 500 MHz, 3 GHz and 7 GHz
Status   Approved for provisional equivalence
  CCEM.RF- K21.F Comparison of antenna factors
2002 - 2004
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 300 MHz and 900 MHz
Status   Approved for equivalence, Results available
  CCEM.RF- S1.CL RF power measurements with 2.4 mm connectors
2002 - 2004
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Power: 1 mW
Frequency: 2 GHz to 50 GHz (8 discrete values)
Status   Approved
  CCEM.RF- S21.F Comparison of antenna factors
2002 - 2004
Comparison type, Field   Supplementary comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 20 Hz to 2 GHz
Status   Approved
  CCEM.RF- K5.c.CL Reflection coefficient / S parameters in PC-3.5
2012 - 2015
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 50 MHz to 33 GHz
Status   Measurements in progress
  CCEM.RF- K7.a.F.1 Antenna power flux density and electric field strength
1991 - 1999
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 100 MHz, 300 MHz, 500 MHz and 1 GHz
Status   Approved for provisional equivalence
  CCEM.RF- K19.CL Attenuation in a 50 ohm coaxial line
2002 - 2005
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 60 MHz and 5 GHz
Status   Approved for equivalence, Results available
  CCEM- K7 AC voltage ratio
1999 - 2003
Comparison type, Field   Key comparison in Electricity and Magnetism, AC Voltage, Current, Power, and AC/DC Transfer
Parameter(s)   Frequency: 1 kHz and 55 Hz (optional)
Status   Approved for equivalence, Results available
  CCEM- K8 Comparison of DC voltage ratios
1999 - 2001
Comparison type, Field   Key comparison in Electricity and Magnetism, DC Voltage and Current
Ratio: 1000 V / 10 V and 100 V / 10 V
Status   Approved for equivalence, Results available
  CCEM- K10 Comparison of resistance standards
2001 - 2003
Comparison type, Field   Key comparison in Electricity and Magnetism, Resistance
Resistance: 100 ohms
Status   Approved for equivalence, Results available
  CCEM.RF- K7.b.F Antenna factor
1993 - 1999
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 30 MHz, 60 MHz, 70 MHz, 80 MHz, 200 MHz, 250 MHz, 300 MHz, 400 MHz, 500 MHz, 600 MHz, 700 MHz and 1000 MHz
Status   Approved for provisional equivalence
  CCEM.RF- K10.CL Power in 50 ohm coaxial lines
2000 - 2002
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 50 MHz to 26 GHz (7 discrete values)
Status   Approved for equivalence, Results available
  CCEM.RF- K22.W Noise in waveguide between 18 GHz and 26.5 GHz
2007 - 2008
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 18 GHz, 22 GHz, 25.8 GHz, and 26.5 GHz
Status   Approved for equivalence, Results available
  CCEM.RF- K23.F Antenna gain
2009 -
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequencies: 12.4 GHz, 15 GHz and 18 GHz
Status   Approved for equivalence, Results available
  CCEM.RF- K24.F Correction factor for E-field measurements
2010 - 2012
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequencies: 1 GHz, 2.45 GHz, 10 GHz and 18 GHz
Indicated field levels: 10 V/m, 30 V/m and 100 V/m
Status   Approved for equivalence, Results available
  CCEM.RF- K26 Attenuation measurements
2014 - 2016
Comparison type, Field   Key comparison in Electricity and Magnetism, Radio frequencies
Parameter(s)   Frequency: 18 GHz, 26.5 GHz and 40 GHz
Status   Measurements in progress