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Calibration and Measurement Capabilities
Time and Frequency
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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Your selection : Time and Frequency
 
Colombia, INM (CO) (Instituto Nacional de Metrología de Colombia)
Complete CMCs in Time and Frequency for Colombia (.PDF file)
Frequency. Frequency counter, 1 MHz to 10 MHz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 1.0E-10
Direct frequency measurement of its time base
Measurement time: 1 d
Gate time: 1 s
Averaging time: 1 s to 32768 s
Amplitude: 100 mVrms to 12 Vrms (50 ), 100 mVrms to 30 Vrms (1 M)
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-05
 
Frequency. Frequency counter, 1 Hz to 6.0E+09 Hz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 1.0E-10
Direct frequency measurement
Measurement time: 100 s
Gate time: 1 s to 10 s
Averaging time: <= 32 s
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-06
 
Frequency. Frequency meter, 1 MHz to 10 MHz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 1.0E-10
Direct frequency measurement of its time base
Measurement time: 1 d
Gate time: 1 s
Averaging time: 1 s to 32768 s
Amplitude: 100 mVrms to 12 Vrms (50 ), 100 mVrms to 30 Vrms (1 M)
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-07
 
Frequency. Frequency meter, 1 Hz to 6.0E+09 Hz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 1.0E-10
Direct frequency measurement
Measurement time: 100 s
Gate time: 1 s to 10 s
Averaging time: <= 32 s
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-08
 
Frequency. Frequency meter, 0.1 Hz to 1.7E+03 Hz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 6.0E-06
Tachometer: direct frequency measurement
Measurement time: 100 s
Averaging time: 10 s
Number of measurements: 10
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-02
 
Frequency. General frequency source, 1 Hz to 3.0E+08 Hz
Relative expanded uncertainty (k = 2, level of confidence 95%) in Hz/Hz: 1.0E-10
Direct frequency measurement
Measurement time: 100 s to 1 d
Gate time: 1 s to 10 s
Averaging time: <= 32768 s
Amplitude: 100 mVrms to 12 Vrms (50 ), 100 mVrms to 30 Vrms (1 M)
Approved on 10 February 2015
Internal NMI service identifier: INM-L08-03


 
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