Microscope Micrometer Net Shaped Eyepiece Micrometer Microscope Calibration Ruler Slides Area Measuring Microscope Micrometer

The 0 line will be divided into two rectangular square, the particle counting area, the right for the length of the measurement area, the left side of the square is divided into three parts in the vertical direction, horizontal direction is divided into two equal parts, forming six small rectangles can be counted in a certain area of particles, on the right side of the square in the vertical direction is divided into in three, while in the horizontal direction is divided into several parts, the upper end of the dividing line with the O, 4, 6, 8, 9...... 13 label. In the upper and lower part of the rectangular grid, each has a number of different sizes, but the upper and lower corresponding circle, the top of the hollow circle, the bottom of the solid circle, each labeled n = L, 2, 3...... 9, can be used to quickly determine the diameter of dust.Micrometer net calculation formula of D= with X L/200, base L represents the length of the rectangular grid. N on behalf of the circle of the label and the right side of the square of the horizontal direction of the sub lines of the label. D on behalf of the diameter of the circle and the right square O line to the distance between the lines, such as the fourth circle order from the diameter of D4 is equal to the distance from the O line to fourth line. No. fifth circle diameter D5 is equal to the O line to the fifth grid line distance (end labeling outjection). Left with 10 sub micrometer net grid, each grid is L/20.