Specialists in Engineering Metrology


Keysight Technologies, formerly Agilentís Electronic Measurement Business

Linear Measurement


Illustration of the setup for using the 55280B for linear measurement.

Linear measurements can be made, using interferometry, at multiple points along an axis to measure either linear displacement or velocity. These linear displacement measurements can be used to assess the capabilities of a machine to position to a target, with information relating to repeatability and errors due to direction of approach (backlash, lost motion) if multiple bi-directional approaches are performed. In some cases, such as CNC machine tools or Digital Read Out positioning systems can be error compensated to improve accuracy. During the measurements the beam path cannot be broken as the interferometery measurement method relies on change in displacement. The interferometer and reflectors are mounted within thermally stable and durable stainless steel cases.

Illustration of the 55280B inear measurement kit.

Linear Measurement Kit (55280B)

Linear Measurement

 Equipment Required


Basic Laser System (5529B)

Linear Measurement Kit (55280B)

 Compatibility  :

Keysight 5530, Agilent 5530, Agilent 5529

Hewlett Packard 5529, Hewlett Packard 5528

 Data Sheet  :

55280B Linear Measurement Kit



Linear Measurement Kit Contents


Part Number


 Linear Interferometer 10766A 1

 Linear Retroreflector

10767A 2
 Base 10784A 2
 Height Adjuster 10785A 3
 Post  (~ 100mm)   3


C. D. Measurements Ltd., Chomlea House, Hadfield Road, Hadfield, Glossop, SK13 2ER, U.K.

Tel. 01457 852929

Email : sales@cdmeasurements.com

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