In industrial production, sensors are widely used to locate small gaps in objects. For example, in the field of precision machining, semiconductor manufacturing, optical component processing, etc., precise measurement and positioning of small gaps in objects is the key to ensuring product quality.

Side positioning of silicon wafer ▲
Background suppression type small spot optoelectronic ESB-BS15 series

▲ Milk tea cup wall connection 1mm gap positioning
Fiber amplifier PC2+fiber optic component PD-X20
For example, on the pharmaceutical packaging production line, certain bottle caps require specific opening methods, such as screw on bottle caps. This type of bottle cap is designed with certain gaps or grooves to allow users to accurately apply downward pressure and rotational force, making it easier to open the cap.
In this issue, Xiao Ming will share with you the application of Meiji sensors in the positioning of pharmaceutical bottle stoppers in the pharmaceutical industry~

Testing requirements
After the mechanical suction nozzle picks up the bottle stopper, it moves to the fiber optic detection position, where a sensor needs to be selected for gap positioning detection of the medicine bottle stopper
1. The gap between the plug and the solid surface has a small difference, with the smallest being only 5mm
2. There are Z-axis/Z-axis servo motors running around the testing location, and electromagnetic interference needs to be prevented
3. Require compatibility with multiple types of stoppers, including a wide variety of bottle stoppers

solution

Fiber optic sensor
1. Choose a fiber optic sensor detection scheme, with fiber optic amplifier PC2-NH paired with fiber optic component PD-X20
2. The detection effect of fiber optic sensors is visualized, and the amplifier values can be finely adjusted. Even small differences and multiple types of states can be stably detected through simple debugging
3. PD-X20 fiber is a focusing diffuse reflection fiber with a small size and easy installation. It is equipped with a focusing lens inside, which has a small light spot and is more suitable for detecting small objects
4. Fiber optic components and amplifiers are installed separately, and amplifiers can be installed far away from electromagnetic interference sources, effectively avoiding electromagnetic interference
