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Your query 'Singapore' produced 352 results New search
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Singapore, NMC, A*STAR (National Metrology Centre, Agency for Science, Technology and Research)
Complete CMCs in Time and Frequency for Singapore (.PDF file)
Time scale difference. Local clock vs UTC, 0 s to 1 s
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ns: 30
Comparison against post-processed UTC
Average time: 1 day
1 PPS amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 13 December 2007
Internal NMI service identifier: NMC, A*STAR/TF 1.1.2
 
Time scale difference. Local clock vs UTC, -0.5 s to 0.5 s
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ns: 30
Comparison against predicted UTC
1 PPS amplitude: > 0.5 V (50 )
Prediction time: 30 days
Excluded DUT's effect
Approved on 16 september 2016
Internal NMI service identifier: NMC, A*STAR/TF 1.1.2
 
Time scale difference. Local clock vs UTC, -0.5 s to 0.5 s
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in ns: 2
Time interval measurement
Pulse amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 1.1.1
 
Time Interval. Time difference meter, 1 s to 1.00E+04 s
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in s: 8E-02
Direct measurement
Included DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 3.1.1
 
Frequency. Local frequency standard, 1 MHz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 2E-14
Phase time comparison
Average time: 1 day
Amplitude: 0.9 Vpp to 4.5 Vpp (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.1.1
 
Frequency. Local frequency standard, 5 MHz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 2E-14
Phase time comparison
Average time: 1 day
Amplitude: 0.9 Vpp to 4.5 Vpp (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.1.1
 
Frequency. Local frequency standard, 10 MHz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 2E-14
Phase time comparison
Average time: 1 day
Amplitude: 0.9 Vpp to 4.5 Vpp (50 )
Excluded DUT's effect
Approved on 16 september 2016
Internal NMI service identifier: NMC, A*STAR/TF 2.1.1
 
Frequency. General frequency source, 1 Hz to 2.00E+05 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 5E-07 to 5E-13
Direct frequency measurement
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.2.1
 
Frequency. General frequency source, 2E+05 Hz to 2.25E+08 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 5E-13
Direct frequency measurement
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.2.1
 
Frequency. Frequency counter, 1 Hz to 1.00E+05 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 6E-07 to 6E-12
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Frequency. Frequency counter, 1E+05 Hz to 2.00E+07 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 6E-09 to 3E-11
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Frequency. Frequency counter, 2E+07 Hz to 2.65E+10 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 3E-10 to 5E-13
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 07 April 2011
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Frequency. General frequency source, 1 Hz to 3.5E+08 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: ((1.0E-13)2+(1.5E-07/f)2)0.5, f frequency in Hz, value range from 1.5E-07 to 1.0E-13
Direct frequency measurement
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 2.2.1/1
 
Frequency. Frequency counter, 1 Hz to 1.00E+06 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 6E-07 to 6E-13
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Frequency. Frequency counter, 1.00E+06 Hz to 1E+08 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 6E-12
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Frequency. Frequency counter, 1E+08 Hz to 4.00E+10 Hz
Relative expanded uncertainty (k = 2, level of confidence 95 %) in Hz/Hz: 6E-11 to 2E-13
Frequency source
Gate time: 100 s
Number of measurements: 10
Amplitude: > 0.5 V (50 )
Excluded DUT's effect
Approved on 16 September 2016
Internal NMI service identifier: NMC, A*STAR/TF 2.3.1
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.1 to 1
Absolute expanded uncertainty (k = 2, level of confidence 95 %): 0.008
Integrating sphere spectrometer
Wavelength range: 320 nm to 390 nm
Bandwidth: 1 nm to 5 nm
Specific measurement conditions: 8/d
Approved on 16 January 2011
 
Reflectance, diffuse, spectral. Spectrally-neutral material, 0.1 to 1
Absolute expanded uncertainty (k = 2, level of confidence 95 %): 0.006
Integrating sphere spectrometer
Wavelength range: 390 nm to 780 nm
Bandwidth: 1 nm to 5 nm
Specific measurement conditions: 8/d
Approved on 16 January 2011
 
Wavelength. Spectrally-selective transmitting material, 200 nm to 800 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: 0.2
Double-beam spectrophotometer and atomic line sources
Spectral bandwidth: 1 nm to 2 nm
Approved on 16 January 2011
 
Wavelength. Spectrally-selective transmitting material, 800 nm to 2000 nm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: 0.8
Double-beam spectrophotometer and atomic line sources
Spectral bandwidth: 1 nm to 20 nm
Approved on 16 January 2011