Test Chart Definition for Land Surveyors
test chart—A chart for testing the performance of an optical system. The design usually consists of ruled lines, squares, or circles of various sizes so arranged that, by examining the image of such a chart, the quality of the lens for various parts of the field can be determined; target. See also power, resolving; definition.
Source: NSPS “Definitions of Surveying and Related Terms“, used with permission.
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