| 摘要 |
A thickness detecting mechanism is provided for detecting a thickness of a to-be-measured article. The thickness detecting mechanism includes a detecting arm and an optical displacement sensing module. The detecting arm is moved as the to-be-measured article is sustained against the detecting arm. The detecting arm includes a surface. The optical displacement sensing module detects the surface of the detecting arm when the detecting arm is respectively located in a first position and a second position. According to the displacement amount of the detecting arm from the first position to the second position, the thickness of the to-be-measured article is acquired.
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