We have published a technical note titled "Seven Methods of 3D Measurement" (including phase shift, optical sectioning, stereo, white light interference, and more).
Each method of 3D measurement has its strengths and weaknesses. In the technical note "Seven Methods of 3D Measurement," we summarize the principles and strengths and weaknesses of seven methods: white light interference, focus point, line confocal, phase shift, mirror (under verification), optical sectioning, and stereo, starting with the weaknesses.
We also answer a frequently asked question: "Which should I choose, phase shift or optical sectioning?" The guideline is whether the workpiece can be stopped.
Our company does not decide on a method in advance. We select candidates from the seven methods and compare measurements using the same physical object to make a choice. Please use this as a reference when you are unsure about selecting a method.

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