Research on cleaning technology of electrical insulators by MOPA pulsed fiber laser
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摘要: 为了满足多种材质的绝缘子系统应用, 采用自主研发的能量达2mJ的主振荡功率放大器脉冲光纤激光器进行了激光清洗实验。分别进行了玻璃、陶瓷及硅橡胶绝缘子的激光清洗实验验证, 取得了各自的最佳清洗激光参数, 同时分析绝缘子清洗速率、激光脉冲参数与清洗效果的关系。结果表明, 在最高10m/s的激光扫描速率下, 可取得3.4cm2/s的清洗效率, 该激光系统可高效地用于多种材料表面清洁。这一结果对电力绝缘子激光清洗应用提供了重要的参考意义。
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关键词:
- 激光技术 /
- 激光清洗 /
- 主振荡功率放大器光纤激光器 /
- 电力绝缘子
Abstract: In order to satisfy the laser cleaning application for a variety of materials insulators, a self-developed pulsed master oscillator power amplifier (MOPA) fiber laser with a laser energy of 2mJ was adopted. The cleaning of the glass insulator, porcelain insulator, and silicon rubber insulator had been effectively finished by a MOPA laser in this work. Also, the relationships between the cleaning speed, pulsed laser parameters, and cleaning effect of the insulator were analyzed. At the highest laser scanning speed of 10m/s, the cleaning efficiency of 3.4cm2/s could be reached, and the optimized laser parameters of insulators with different materials were studied for provision of reference in electrical insulators laser cleaning application. -
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Figure 2. The polluted insulator for laser cleaning experiments
a—glass insulator b—porcelain insulator c—silicon rubber insulator
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Figure 4. Optical microscopic images of three polluted insulators before and after processing with a MOPA laser
Table 1 Main parameters of MOPA fiber laser
parameter specification wavelength 1064nm maximum power 200W pulse frequency 50kHz~5000kHz pulse duration 10ns~1000ns M2 beam quality ≤2 
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