8
Figure 5.3.3 Figure 5.3.4
1
1
.
.
Use of Microscope for Readings Taking
1.1
A scheme of the microscope’s external structure (Fig. 8)
Lens Cylinder Base
Long Lens Cylinder
Object Lens Cylinder
Lens Cylinder Locking Screw
Eye Lens Package
Eyelens Adjusting Knob
Reading Taking Drum
1.2
Application
This microscope is designed to be used primarily for measurement of the indent formed in Brinell hardness
test.
1.3
Technical Specification
Amplification:
x 20; diameter of the sight range: 9 mm; effective measurement range: 6 mm
Eye lens scale span
Graduation range of
eye lens scale
Minimum readable on
the micro-measuring
drum
Measurement
accuracy
1 mm
8 mm
0.005 mm
0.005 mm
Fig 8