Three measurement methods for industrial microscopes

Three measurement methods of industrial microscopes Industrial microscopes are a sign that human beings have entered the atomic age.
It is an optical instrument composed of one or more lenses.
instrument
.

The first thing to say about industrial microscopes is the stereo microscope, which is mainly used for on-site inspection, PCB, liquid crystal and other industries
.

Followed by the metallographic microscope in line with material analysis, steel and metal processing industries require measuring microscopes, more used in microelectronics and fine processing industries
.

1.
Axial cutting method Axial cutting method is a measurement method that uses the mark of the microscope to aim and locate the axis line of the measuring piece and use the engraved line on the measuring knife
.

The measuring knife is an accessory of Wangongxian
.

There is a scribe line on the surface, and the size from the scribe line to the cutting edge is 0.
3 mm and 0.
9 mm.
When measuring, place the measuring knife on the measuring shim plate, the scribed line surface passes through the axis of the measuring piece, and makes the edge of the measuring knife.
The mouth is in close contact with the surface to be measured, and the corresponding meter line is used to aim, and the distance between the engraved lines of the two measuring tools is measured, and the measured value of the measured part is indirectly measured
.

In order to avoid the calculation in the measurement, two groups of four symmetrically distributed parallel lines are engraved on both sides of the middle vertical meter line.
The distance between each group of engraved lines and the central engraved line is 0.
9 and 2.
7 mm respectively, which is exactly the measuring tool.
The distance between the cutting edge and the score line is 0.
3 and 0.
9 mm 3 times
.

In this way, when aiming with a 3x objective lens, the 0.
9 and 2.
7 mm lines on the reticle just press the 0.
3 and 0.
9 mm lines on the measuring knife.
At this time, the cutting edge on the measuring knife is just hit by the middle line of the meter line.
aimed at
.

Mainly used for thread pitch diameter measurement
.

 　　2.
Imaging method Imaging method is a measurement method that uses the mark of the microscope to target and locate the image method
.

When measuring, usually first aim at the edge of the image of the test piece with the scribe line on the reticle (meter line), and read the value on the reading microscope, and then move the worktable to aim at the other side of the image of the test piece with the same scribe line.
Aside, take a second reading
.

The difference between the two readings is the measured value of the DUT
.

 　　3.
Contact method The contact method is a measurement method of aiming and positioning by using the marks of the microscope and the double engraved lines connected with the measuring head of the Wangong display accessory-optical hole measuring instrument close to the measuring point, line and surface of the test piece
.

When measuring, the probe of the optical porosimeter is close to the surface of the part (inner and outer)
.

When measuring the aperture, first make the probe contact with the inner hole of the measuring piece, after obtaining the chord length, make the middle engraved line of the meter line be set in the middle by the double set of lines of the optical hole measuring device, and read a number on the reading microscope; Then change the measurement direction so that the probe is in contact with the test piece on the other side, and also make the middle engraved line of the meter-line reticle still covered by the double sleeve of the optical hole measuring device.
Count
.

The difference between the two readings, plus the actual value of the diameter of the probe, is the inner dimension of the test piece.
If the actual value of the diameter of the probe is subtracted, it is the outer dimension of the test piece
.

 　　The above is the introduction of industrial microscope measurement methods.
I believe that everyone has a corresponding understanding of this after reading.
Different measurement methods have different application scopes.
When choosing, you should choose according to your own needs.
I hope it will help you
.