Bộ đo cực nhỏ Leica GPM3

Leica GPM3 Parallel Plate Micrometer For NA2 NAK2 Engineer Auto Level

GPM3 Micrometer is an addon for the NA2 or NAK2 Optical Level manufactured by Leica.

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This optional accessory slips over the telescope objective and blends perfectly with the smooth lines of the NA2. With a compensator setting accuracy of ±0.3“ (equivalent to 0.01 mm in 10 m)and a micrometer reading to 0.1 mm direct and 0.01 mm by estimation, the NA2 with GPM3 is an ideal combination for precise leveling, deformation studies, and even optical tooling. The micrometer drive for raising and lowering the line of sight is conveniently located and readings are taken on a glass scale viewed through an eyepiece just above the telescope eyepiece. This optical reading system, which is digital apart from the last and estimated figure in the metric and inch versions, is superior to the usual metal drum system

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