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Measurement optics

Our range of measurement optics enables you to measure linear displacement, pitch, yaw, horizontal and vertical straightness along any axis.

Additional optic kits are available to enable measurement of surface flatness and squareness of axes.

The same optics can be used with XL-80 or ML10 systems, ensuring consistency of measurement set-ups and procedures. All measurements are interferometric and therefore use the traceable international standard wavelength of laser light, allowing you to have total confidence in the results.

For rotary axis calibration, please see XR20 rotary axis calibrator section and for other optical accessories to assist in set-up and measurement, please see the optical accessories section.

Features and benefits

Interchangeable

The unique design of linear, angular and straightness optics enables easy interchange for different measurements, without having to re-align the laser.

Convenient

Moving optics have no cables to drag or snag, for best accuracy and convenience.

Low mass aluminium optics

The optics are manufactured in aluminium, therefore the optics' low mass is especially relevant if measuring pitch errors on horizontal arm CMMs and for dynamic measurements.

Quick acclimatisation

Some competitor systems use stainless steel optic housings. These are much heavier than Renishaw's aluminium optics and have a lower thermal conductivity, therefore taking longer to acclimatise to the shop environment.

Linear measurement optics kit

Linear measurement optics kit

Linear measurement is by far the most common form of measurement performed on a machine.

Each linear measurement optics kit contains:

  • 1 linear interferometer
  • 2 linear retroreflectors and clamp screws
  • 2 alignment targets

Part number: A-8003-0440

For linear measurements over 40 m you will require the long range linear accessory kit

Angular measurement optics kit (standard)

Angular measurement optics

These optics allow angular pitch and yaw measurements to be made. Can measure maximum angular deflections of up to ±10° with resolution of 0.01 arc sec.

Each angular measurement kit contains:

  • 1 angular retroreflector
  • 1 angular interferometer
  • 2 alignment targets

Part number: A-8003-0441

Angular measurement optics kit (calibrated)

Angular measurement optics

These optics allow angular pitch and yaw measurements to be made with a lower measurement uncertainty than with standard optics. Each retroreflector is supplied with a calibration certificate and marked with a calibration factor.

Each calibrated angular measurement kit contains:

  • 1 angular retroreflector
  • 1 angular interferometer
  • 2 alignment targets
  • calibration certificate

Part number: A-8003-2532

Also available with steel housings for greater thermal stability.

Linear and angular combination kit

Anglular + Linear optics

This optics combination kit is a cost saving alternative for users who wish to perform both linear and angular measurements.

Each combination kit contains:

  • 1 linear retroreflector and clamp screws
  • 1 angular retroreflector
  • 1 angular interferometer
  • 3 alignment targets

Part number: A-8003-2774

Straightness measurement optics kit: 0.1 - 4 m axis length

SR straightness

These optics allow the measurement of horizontal straightness error in linear axes up to 4 m in length to be made. They also enable axis parallelism to be measured.

Each short range straightness kit contains:

  • 1 straightness interferometer
  • 1 straightness reflector

Part number: A-8003-0443

May require Universal (straightness) shutter or straightness accessory kit, depending upon application (see measurement accessories section)

Straightness measurement optics kit: 1 - 30 m axis length

LR straightness

These optics can be used to measure the horizontal straightness error in linear axes from 1 m up to 30 m in length when using the XL-80 laser system. They also enable measurement for parallelism of axes.

Each long range straightness kit contains:
  • 1 straightness interferometer
  • 1 straightness retroreflector
  • 2 alignment targets

Part number: A-8003-0444

May require Universal (straightness) shutter or straightness accessory kit, depending upon application (see measurement accessories section)

Squareness measurement optics

Squareness measurement optic

These optics determine the out-of-squareness of two nominally orthogonal axes, by comparing their straightness slope values which are referenced via the optical square.

Note:
A straightness measurement optics kit and straightness accessory kit are also required to perform squareness measurements.

Each squareness measurement optics kit contains:

  • 1 optical square and clamp screws
  • 1 bracket (for adjustable turning mirror)

Part number: A-8003-0665

Flatness measurement kit

Flatness optics

The flatness mirrors not only rotate horizontally, but also tilt to allow horizontal and vertical adjustment of the laser beam.

Note:
Angular optics are also required to perform flatness measurements.

Each flatness measurement kit contains:

  • 2 flatness mirrors
  • 1 50 mm flatness base
  • 1 100 mm flatness base
  • 1 150 mm flatness base

Part number: A-8003-0442

Product information