GB/T 18312-2015Inspection rule for binoculars (English PDF)

3.1 Test tools and equipment

The main telescope test tools, equipment and the main technical requirements are shown in Table 1.

Table 1 Test tools, equipment and main technical requirements

Test tool, device name, main technical requirements

Standard caliber calibration caliber frame absolute error is less than 0.05mm

Measuring microscope

Radial measurement uncertainty is not greater than 0.01mm

Axial measurement uncertainty of not more than 0.2mm

Field instrument field measurement uncertainty of not more than 3 '

Rate meter

Partition absolute error is less than 0.01mm

Tube axial division of absolute error is less than 0.1mm

Depending on meter

Depending on the degree zero error absolute value is not greater than 0.1m-1

Depending on the measurement range is not less than -6m-1 ~ 6m-1

Depending on the degree of measurement uncertainty is not greater than 0.25m-1

Like inclinometer indication error of not more than 2 '

Dividing the value of 0.02mm vernier caliper

Collimator

Parallax is not greater than 0.01m-1

Resolution of not less than (140/D) "

Not less than the focal length of 1000mm, Aperture is not less than 110mm

Resolution plates of JB/T 9328-1999 Executive

Front mirror

The magnification is not less than 4 times

Resolution of not less than (140/D) " […]