The design and performance of the automated photographic measuring facility at Cambridge is described. It consists of a precision laser scanning microdensitometer connected to a series of computers that process the data on-line. Plates up to 350 mm square can be measured. The microdensitometer samples the plate to 12 bit accuracy at a speed of 230,000 samples/second. The positional accuracy is better than a micron. Other features include platen rotation and automatic focus.


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    Title :

    The automated photographic measuring facility at Cambridge


    Contributors:


    Publication date :

    1984-07-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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