Published

Fizeau Interferometer Measures Radius and Form Deviations

Appears in Print as: 'Tower Measures Radius and Form Deviations'


Mahr Inc.’s MarOpto MT 100 is part of a series of Fizeau interferometer towers for measuring optics directly in production that are supported by Intelliwave software to allow measurement of both radius and form deviations.

Share

Mahr Inc.’s MarOpto MT 100 is part of a series of Fizeau interferometer towers for measuring optics directly in production. The interferometers are supported by Intelliwave software to allow measurement of both radius and form deviations as a measurement wizard guides the user through the steps to complete the measurement, the company says.

The interferometers can be used with precision optics production up to 4” diameter. According to the company, spheres and flats can be measured with lambda/20 accuracy and the Z axis covers 800 mm at a resolution of 0.5 µm for precision determination of the radius in the optic under test.

RELATED CONTENT

  • The Difference Between Ra and Rz

    While it is best to measure using the parameter specified in the print, there are rules of thumb available that can help clear up the confusion and convert Ra to Rz or Rz to Ra.

  • Reducing Downtime With Tool Presetting

    It’s an ongoing challenge. To remain competitive, shops must find new and more efficient ways to increase production. Often they look to new, faster and more precise machine tools as the answer. Sometimes experimentation with a variety of different tooling

  • Measure 3D Parts Without Losing Time

    This high-speed metrology and inspection system is said to process complex geometries faster than traditional inspection methods.