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Table 2 Inner diameter of three test components

From: Application of machine vision technology in geometric dimension measurement of small parts

Measurement times

Component h1 Central hole (mm)

Component h2 Central hole (mm)

Component h3 Central hole(mm)

1

3.403

3.408

3.408

2

3.404

3.407

3.408

3

3.403

3.407

3.407

4

3.403

3.407

3.407

Average value

3.403

3.407

3.407

Measured value

3.372

3.413

3.418