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RPI re-launch the i72 Angle Reference Standard
Monday, November 14th, 2011
The i72 Angle reference standard is now available to all Laser Interferometer and Autocollimator manufacturers, calibration laboratories, and rotary axis OEM’s
The i72 is a compact high accuracy positioning system for use [...]
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QD12-09-C – Angular Positioning Accuracy
The angular position deviations are determined by comparing the actual position of the rotary table with the nominal angles defined by a calibrated angle gauge.
A 12-sided polygon is aligned and fastened to the axis to be measured. An auto Collimator is then aligned with the polygon. From a common zero point the rotary axis to be inspected is rotated at 30° intervals and the error recorded at each position.
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QD12-09-C |
