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Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.


The Keysight 10775A combines a straightness interferometer and reflector to provide measurements over a range of 1 to 30 meters (3 ft to 100 ft). The optics form a highly-accurate optical straightedge that can measure the straightness of travel of machine-tool and measuring-machine coordinate motions with a resolution of 0.1 micrometer (10 microinch).

The Keysight 10775A, used with the Keysight 5530 Laser Calibration System, is one of a large election of components that tailor interferometer systems for the physical layout and measurement requirements of each application. 

  • Straightness Measurement Accuracy
  • Overall Accuracy = Optical Reference Accuracy + Measurement Accuracy.
  • This is analogous to the traditional straightedge and indicator method of measuring straightness, where Optical Reference Accuracy corresponds to the straightedge accuracy, and Measurement Accuracy corresponds to the indicator accuracy.
  • Optical Reference Accuracy
  • Optical reference inaccuracy can be eliminated by using straightedge (mirror) reversal techniques.
  • Metric units mode: ±0.015 M2 µm
  • English units mode: ±0.05 F2 µin
  • Where:
  • M = distance of travel of the moving optic in meters.
  • F = distance of travel of the moving optic in feet.
  • Measurement Accuracy
  • Temperature Range Displayed Value:
  • 0 µm to 100 µm 100 to 1,500 µm
  • 0 µm to 4000 µm 4000 to 60,000 µm
  • 15° C to 25° C ±5% ±2.5% ±02.55 µm (10 µin)
  • 0°, C to 40° C ±7.5% ±2.5% ±5 µm (20 µin)
  • Straightness Measurement Resolution
  • Keysight 5519A, Keysight 5519B
  • 0.1 µm (4 µin) 36 µm (14 µin)
  • Straightness Measurement Range (Orthogonal to Axial Travel)
  • ±1.5 mm (0.060 in)
  • Axial Separation (Travel)
  • (distance between the interferometer and the reflector, typical, with proper alignment, 15° C to 25° C): 1 m to 30 m (3 ft to 100 ft)
  • Highly accurate with low sensitivity to air turbulence
  • Can be used with the Keysight 55283A Straightness Measurement Kit to extend its distance range
  • High resolution plane mirror
  • Available for use in a variety of Keysight systems, including the Keysight 5530 Laser Calibration System