Assured Confidence

Length Calibration

Key Equipment List

  • Suite of environmentally controlled laboratories
  • Zeiss UMC 850 CMM
  • Hewlett Packard laser interferometer system
  • Hilger-Watts gauge block interferometer
  • Zeiss UMC600 Single Axis Measuring Machine
  • Tesa gauge block comparator
  • Federal long gauge block comparator
  • Zeiss 'OPAL' Single Axis Measuring Machine
  • Reference sets of angle gauges
  • Ball bar standards
  • Sphere plate standards

Capabilities

List of instruments calibrated by NML:

  • Angle gauges, precision
  • Angle plates, box angle plates
  • Autocollimator and angle dekkors
  • Balls
  • Clinometers
  • Cylindrical setting standards
  • Dial gauges, lever
  • Dial gauges, plunger
  • Gauge block accessories
  • Gauge block comparators
  • Gauge blocks (by comparison)
  • Gauge blocks (by interferometry)
  • Graticules
  • Indexing tables
  • Length bar accessories
  • Length bars
  • Levels, electronic
  • Levels, spirit
  • Measuring machines, horizontal and vertical
  • Measuring Tapes
  • Micrometers, depth
  • Micrometers, external
  • Micrometers, height setting
  • Micrometers, height setting riser blocks
  • Micrometers, internal
  • Optical flats
  • Optical parallels
  • Parallels, engineers
  • Plain gap gauges, parallel
  • Plain plug gauges, parallel
  • Plain plug gauges, taper
  • Plain ring gauges, parallel
  • Plain ring gauges, taper
  • Plain setting rings, parallel
  • Polygons
  • Receiver & position gauges, jigs, fixtures
  • Rotary tables and dividing heads
  • Scales, precision linear
  • Screw plug gauges, parallel
  • Screw ring gauges, parallel
  • Sine bars, centres, tables
  • Sine tables, compound
  • Squares, blade
  • Squares, block
  • Squares, cylindrical
  • Stage micrometers
  • Steel rule, engineers
  • Step gauges
  • Straightedges
  • Surface plates & tables
  • Tapes
  • Thread diameter measuring machines
  • Thread measuring cylinders
  • Vee blocks
  • Vernier gauges, calliper
  • Vernier gauges, depth
  • Vernier gauges, height
Measurement Range Best Measurement Uncertainty (sample)
Length 0 – 30 m ± 0.005 µm
Angle 0 – 360 degrees 30 secs
CMM 600 X 850 X 1200mm 2.8 + L/250 um (L in mm)

Contact:

Rory Hanrahan
NSAI National Metrology Laboratory,
Glasnevin,
Dublin 9 Ireland

T +353 1 808 2611
F + 353 1 808 2603
E rory.hanrahan@nsai.ie

Jim O Donnell

NSAI National Metrology Laboratory,
Glasnevin,
Dublin 9, Ireland

T +353 1 808 2613
F +353 1 808 2603
E: jim.odonnell@nsai.ie