研究目的
To develop a highly accurate measurement system with a low measurement force using a micro optical fiber probe for measuring microstructures of mechanical microparts and micro holes.
研究成果
The fabrication of a stylus from an optical fiber by etching and using a CO2 laser was successful. The application of a water-repellent coating reduced the separation distance from the target surface by approximately 30%. Durability tests indicated that the stylus tip could withstand up to 100,000 contacts without significant abrasion, and the shaft endured more than 700,000 buckling oscillations.
研究不足
The study focused on the fabrication and testing of a micro optical fiber probe under specific conditions. The durability tests were limited to a certain number of contact counts and buckling oscillations. The influence of environmental factors other than humidity was not extensively explored.
1：Experimental Design and Method Selection:
The study involved the fabrication of a stylus from an optical fiber by etching and using a CO2 laser, followed by performance and durability tests of the stylus tip with a water-repellent coating.
2：Sample Selection and Data Sources:
A step index multimode optical fiber was used for the stylus shaft fabrication. The performance of the water-repellent coating was tested on the stylus tip.
3：List of Experimental Equipment and Materials:
CO2 laser (C-55, COHERENT), QE-CL3N of Frostec Inc., optical fiber (core diameter: 105 μm, clad diameter: 125 μm), and hydrophobic dimethylpolysiloxane for water-repellent coating.
4：Experimental Procedures and Operational Workflow:
The stylus shaft was fabricated using an acid-etch technique, and the tip was formed using a CO2 laser. The water-repellent coating was applied to the stylus tip, and its performance was tested by measuring the separation distance from a target surface. Durability tests included abrasion resistance and buckling tests.
5：Data Analysis Methods:
The separation distance was measured to evaluate the effectiveness of the water-repellent coating. SEM observation was used to assess abrasion on the stylus tip after durability tests.
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