traveling microscope

traveling microscope

[′trav·əl·iŋ ′mī·krə‚skōp]
(optics)
A low-power microscope equipped with a graticule and rails enabling it to move horizontally or vertically, used to make accurate length determinations.
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References in periodicals archive ?
The crack length (a) was measured by a traveling microscope, while the load-line displacement was measured by an extensometer.
What: Nikon's traveling microscope photography exhibit