Measurement device for be used for measuring plane roughness among a small circle

The utility model relates to a measurement device for be used for measuring plane roughness among a small circle belongs to and builds ship technical field, and this roughness measuring tool includesmagnetic base (1), horizontal sliding bar (2), perpendicular scale (3), two -way sliding dop (4) sum check line (5), magnetic base (1) is fixed on horizontal sliding bar (2), be provided with one horizontal check line (5) and two -way sliding dop (4) on horizontal sliding bar (2), two -way sliding dop (4) internal fixation has perpendicular scale (3), 0 scale mark on perpendicular scale (3) coincides with inspection line (5) on the flat surface. The utility model discloses a roughness measuring tool can use to awaiting measuring of multiple scope is regional through the horizontal sliding barof making different length, and its high efficiency is directly perceived, has improved the degree of accuracy and the efficiency of inspection roughness, reduces the cost of labor simultaneously. 本实用新型涉及种用于测量小范围平面平整度的测量装置，属于修