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CMCs General Physics (41)
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Dimensional metrology (41)
End standards (10)
Line standards (7)
Diameter standards (5)
Flatness standards (5)
Gear standards (4)
Roundness standards (3)
Angle by circle dividers (2)
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EURAMET (41)
United Kingdom (41)
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Your query 'United Kingdom' produced 41 results New search
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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Length for United Kingdom (.PDF file)
Various dimensional. Extensometer: extension, R, 0 mm to 1000 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: (32 + 4R), R in mm
Interferometry
Internal NMI service identifier: 41
 
End standards. Long gauge block: thermal expansivity a, 0.000009 K-1 to 0.000013 K-1
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K-1: (0.004 + 11/L + 0.000007L) x 10-6, L in mm
Absolute interferometry exact fractions
Length, L: 100 mm to 1000 mm
Temperature: 18 °C to 25 °C
Internal NMI service identifier: 17
 
End standards. Length bar: thermal expansivity a, 0.000009 K-1 to 0.000013 K-1
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in K-1: (0.004 + 11/L + 0.000007L) x 10-6, L in mm
Absolute interferometry exact fractions
Length, L: 100 mm to 1270 mm
Temperature: 18 °C to 25 °C
Internal NMI service identifier: 18
 
End standards. Gauge block: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[19, 0.21L], L in mm
Absolute interferometry exact fractions
Approved on 03 August 2011
Internal NMI service identifier: 10
 
End standards. Gauge block: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[32, 0.76L], L in mm
Mechanical comparison
Approved on 03 August 2011
Internal NMI service identifier: 10a
 
Length instruments. Laser interferometer: displacement L, 0 m to 45 m
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: Q[0.08, 0.12L], L in m
Comparison of two interferometers
Approved on 08 October 2012
Internal NMI service identifier: 7
 
Length instruments. Laser interferometer: displacement and wavelength compensation, 0 m to 45 m
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: Q[0.08, 0.2L], L length in m
Comparison of two interferometers
Relative humidity: (50 ± 10) %
Temperature: 15 °C to 25 °C
Pressure: 900 hPa to 1050 hPa
Approved on 08 October 2012
Internal NMI service identifier: 8
 
End standards. Step gauge: face spacing L, 10 mm to 1540 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: (0.1 + 0.000232L), L in mm
Modified CMM with heterodyne interferometer
Approved on 08 October 2012
Internal NMI service identifier: 19
 
End standards. Length bar: central length L, 0.5 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[60, 0.21L], L in mm
Absolute interferometry exact fractions
Approved on 22 September 2015
Internal NMI service identifier: 14
 
Diameter standards. Reference sphere: diameter, 8 mm to 50 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: 0.11
Mechanical probe with interferometric sensing
Approved on 22 September 2015
Internal NMI service identifier: 48
 
United Kingdom, NGML (National Gear Metrology Laboratory)
Complete CMCs in Length for United Kingdom (.PDF file)
Gear standards. Spur, or helical gear: profile slope deviation, 10 mm to 650 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: 1
Gear measuring machine
Reference diameter: 10 mm to 650 mm
Approved on 22 September 2015
Internal NMI service identifier: NGML/1
 
Gear standards. Spur, or helical gear: helix slope deviation, 0 ° to 45 °
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: 1
Gear measuring machine
Reference diameter: 10 mm to 650 mm
Approved on 22 September 2015
Internal NMI service identifier: NGML/2
 
Gear standards. Spur, or helical gear: pitch adjacent deviation, 10 mm to 650 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: 0.7
Gear measuring machine
Reference diameter: 10 mm to 650 mm
Approved on 22 September 2015
Internal NMI service identifier: NGML/3a
 
Gear standards. Spur, or helical gear: pitch cumulative deviation, 10 mm to 650 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: 1.1
Gear measuring machine
Reference diameter: 10 mm to 650 mm
Approved on 22 September 2015
Internal NMI service identifier: NGML/3b
 
United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Length for United Kingdom (.PDF file)
Diameter standards. External cylinder (plain plug gauge): diameter, D, 0.1 mm to 100 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: (0.07 + 0.0011D), D in mm
Mechanical probe with capacitance sensing (up to 10 mm) and laser interferometer (up to 100 mm)
Approved on 12 September 2016
Internal NMI service identifier: 28
 
Diameter standards. External cylinder (plain plug gauge): diameter, D, 100 mm to 150 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in µm: (0.05 + 0.0014D), D in mm
Mechanical probe with interferometric sensing
Approved on 12 September 2016
Internal NMI service identifier: 29
 
End standards. Long gauge block: central length L, 100 mm to 1000 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: (120 + 0.26L), L in mm
Interferometric mechanical comparator
Internal NMI service identifier: 12
 
End standards. Long gauge block: central length L, 100 mm to 1000 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[49, 0.083L], L in mm
Absolute interferometry exact fractions
Internal NMI service identifier: 13
 
End standards. Length bar: central length L, 100 mm to 1270 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: (120 + 0.26L), L in mm
Interferometric mechanical comparator
Internal NMI service identifier: 15
 
End standards. Length bar: central length L, 100 mm to 1270 mm
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in nm: Q[49, 0.083L], L in mm
Absolute interferometry exact fractions
Internal NMI service identifier: 16