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Calibration and Measurement Capabilities
Electricity and Magnetism |
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| 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 |
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| Result of the search |
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Your selection : Electricity and Magnetism
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| | | Korea, Republic of, KRISS (Korea Research Institute of Standards and Science) |
| | Complete CMCs in Electricity and Magnetism for Korea, Republic of (.PDF file) | | | Magnetic fields below 50 kHz: turn area (ratio of magnetic flux and magnetic flux density). Sensing coils, area turns, 0.005 m2 to 0.3 m2 | | Relative expanded uncertainty (k = 2, level of confidence 95%) in cm2/m2: 50 | | Fluxmeter, NMR | | Coil size: smaller than a square of side length 10 cm | | Approved on 18 October 2004 | | Internal NMI service identifier: KRISS/89 |
| | | AC current up to 100 A: meters. Multimeters: AC current, 0.001 A to 10 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 165 to 6500 | | Direct measurement | | Frequency: 40 Hz to 10 kHz | | Approved on 18 October 2004 | | Internal NMI service identifier: KRISS/73 | |
Uncertainty table
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| | | AC current up to 100 A: sources. Multifunction calibrator, transconductance amplifier, 0.001 A to 10 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 70 to 220 | | Direct measurement | | Frequency: 40 Hz to 10 kHz | | Approved on 18 October 2004 | | Internal NMI service identifier: KRISS/72 | |
Uncertainty table
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| | | AC high voltage: phase displacement. Voltage transformer, 0 min to 7 min | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in min: 0.14 to 0.29 | | Comparison with standard transformer | | Voltage: 30 V to 33 kV | | Frequency: 60 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: KRISS/147 | |
Uncertainty table
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| | | AC high voltage: phase displacement. Voltage transformer, 0 min to 7 min | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in min: 0.15 to 0.16 | | Comparison with standard transformer | | Voltage: 55 kV to 200 kV | | Frequency: 60 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: KRISS/148 | |
Uncertainty table
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| | | AC high voltage: ratio error. Voltage transformer, 0 to 0.002 | | Absolute expanded uncertainty (k = 2, level of confidence 95%): 35E-06 to 60E-06 | | Comparison with standard transformer | | Voltage: 30 V to 33 kV | | Frequency: 60 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: KRISS/145 | |
Uncertainty table
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