Micrometer Flatness and Parallelism inspection

Computerized sub-micron micrometer Flatness and Parallelism inspection.
Testing Flatness of measuring faces with optical flat. Each fringe = 0.32μm
2 Methods of testing parallelism of measuring faces:
Using gauge block in 4 position.
Using optical parallel, Each fringe = 0.32μm (recommended method)
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