A micrometer is a useful instrument used by engineers and metrologists in almost all industries for very precise and accurate measurements. They are extensively used for essential metrological ...
For many centuries, the principle of triangulation - that is the geometric measurement using three-point relationships - has been relatively well known. In Europe, the land survey method established ...
The measurement technique of the aspheric surface is mainly for the surface form and parameters. The surface form is the three-dimensional distribution of the surface in the spatial domain. The ...
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