Optical Instruments, Volume. 41, Issue 6, 32(2019)
Analysis of influence factors on long-term stability of optical coherence tomography
Figures & Tables(16)
Table 1. Equipment failure statistical analysis
View tableView in ArticleTable 1. Equipment failure statistical analysis
故障原因 报修次数 现阶段解决方案及说明 注：数据源自蔡司中国售后数据报告，非公开。 操作原因及病人本身原因 10 经过两次培训及反复练习基本可解决 光路污染 11 基本发生在一年后，需要定期保养 SLD光源及驱动机构 7 软件校准4次，调整驱动机构输出电压2次，更换SLD光源及驱动机构1次 光谱仪 23 机械调整光谱仪光强信号，2次整体更换光谱仪 其他 5 主要是操作系统软件故障引起，重新安装后解决
Table 2. Influencing factors of optical energy transmission
View tableView in ArticleTable 2. Influencing factors of optical energy transmission
因素1 因素2 因素3 偏移量/μm 敏感度噪声值/dB 偏移量/μm 敏感度噪声值/dB 物镜前能量值/μW 敏感度噪声值/dB 70 6.8 70 6.8 600 6.3 113 9.4 113 9.4 540 7.0 170 12.0 170 12.0 480 9.5 212 13.7 212 13.7 420 10.7
Table 3. Influencing factors of stable output SLD energy
View tableView in ArticleTable 3. Influencing factors of stable output SLD energy
因素4 因素5 因素6 输出电压1/V 输出电压2/V 敏感度噪声值/dB 温度/℃ 敏感度噪声值/dB 电流值/mA 敏感度噪声值/dB 5.00 −5.00 6.8 24 7 160 7 4.97 −5.01 6.9 26 10 170 9 4.88 −4.95 7.2 28 11 180 11 4.76 −4.80 9.5 30 14 190 14
Table 4. Spectrograph stability influencing factors
View tableView in ArticleTable 4. Spectrograph stability influencing factors
因素7 因素8 因素9 探测器偏离光轴/μm 敏感度噪声值/dB 平面镜倾斜/（°） 敏感度噪声值/dB 物镜前能量值/μW 敏感度噪声值/dB 4 10 2 9 5 10 7 18 3 13 15 12 10 22 4 15 25 15 13 30 5 16 35 17
Table 5. Comparison judgment matrix 1
View tableView in ArticleTable 5. Comparison judgment matrix 1
A B1 B2 B3 B4 权重向量大小 B1 1 2 1/2 1 0.222 2 B2 1/2 1 1/4 1/2 0.111 1 B3 2 4 1 2 0.444 4 B4 1 2 1/2 1 0.222 2
Table 6. Comparison judgment matrix 2
View tableView in ArticleTable 6. Comparison judgment matrix 2
B1 C1 C2 C3 权重向量大小 C1 1 1/2 1/2 0.2 C2 2 1 1 0.4 C3 2 1 1 0.4
Table 7. Comparison judgment matrix 3
View tableView in ArticleTable 7. Comparison judgment matrix 3
B2 C4 C5 C6 权重向量大小 C4 1 1/2 1/2 0.2 C5 2 1 1 0.4 C6 2 1 1 0.4
Table 8. Comparison judgment matrix 4
View tableView in ArticleTable 8. Comparison judgment matrix 4
B2 C7 C8 C9 权重向量大小 C7 1 3 3 0.6 C8 1/3 1 1 0.2 C9 1/3 1 1 0.2
Table 9. Comparison judgment matrix 5
Table 10. Average random consistency index RI
Table 11. Maximum eigenvalue and consistency test result
View tableView in ArticleTable 11. Maximum eigenvalue and consistency test result
上层因素 同层因素 最大特征根 λ max一致性检验 A B1、B2、B3、B4 4 CR=0＜0.1 B1 C1、C2、C3 3 CR=0＜0.1 B2 C4、C5、C6 3 CR=0＜0.1 B3 C7、C8、C9 3 CR=0＜0.1 B4 C10、C11 2 CR=0＜0.1
Table 12. System factor AHP analysis result
View tableView in ArticleTable 12. System factor AHP analysis result
层次C B1 B2 B3 B4 总排序权值 0.222 2 0.111 1 0.444 4 0.222 2 C1 0.2 0 0 0 0.044 44 C2 0.4 0 0 0 0.088 88 C3 0.4 0 0 0 0.088 88 C4 0 0.2 0 0 0.022 22 C5 0 0.4 0 0 0.044 44 C6 0 0.4 0 0 0.044 44 C7 0 0 0.6 0 0.266 64 C8 0 0 0.2 0 0.088 88 C9 0 0 0.2 0 0.088 88 C10 0 0 0 0.67 0.148 874 C11 0 0 0 0.33 0.073 326
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Yongkang WANG, Kang XU, Gang ZHENG, Cheng WANG, Dawei ZHANG. Analysis of influence factors on long-term stability of optical coherence tomography[J]. Optical Instruments, 2019, 41(6): 32
Paper Information
Category: APPLICATION TECHNOLOGY
Received: Dec. 18, 2018
Accepted: --
Published Online: May. 19, 2020
The Author Email: WANG Cheng (c.wang@usst.edu.cn)
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