Rapid measurement and compensation method of eccentricity in automatic profile measurement of the ICF capsule

Li Shaobai; Wang Yun; Wang Qi; Ma Xianxian; Wang Longxiao; Zhao Weiqian; Zhang Xusheng

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Rapid measurement and compensation method of eccentricity in automatic profile measurement of the ICF capsule

机译：ICF胶囊自动型材测量中偏心的快速测量和补偿方法

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In this paper, we propose a new measurement and compensation method for the eccentricity of the inertial confinement fusion (ICF) capsule, which combines computer vision and the laser differential confocal method to align the capsule in rotation measurement. This technique measures the eccentricity of the capsule by obtaining the sub-pixel profile with a moment-based algorithm, then performs the preliminary alignment by the two-dimensional adjustment. Next, we use the laser differential confocal sensor to measure the height data of the equatorial surface of the capsule by turning it around, then obtain and compensate the remaining eccentricity ultimately. This method is a non-contact, automatic, rapid, high-precision measurement and compensation technique of eccentricity for the capsule. Theoretical analyses and preliminary experiments indicate that the maximum measurement range of eccentricity of this proposed method is 1.8 mm for the capsule with a diameter of 1 mm, and it could eliminate the eccentricity to less than 0.5 mu m in 30 s. (C) 2018 Optical Society of America.

机译：在本文中，我们提出了一种新的测量和补偿惯性限制融合（ICF）胶囊的偏心率，其结合了计算机视觉和激光差分共聚合方法，使胶囊在旋转测量中对准。该技术通过获得具有基于矩的算法的子像素曲线来测量胶囊的偏心率，然后通过二维调整执行初步对准。接下来，我们使用激光差分共焦传感器来测量胶囊的赤道表面的高度数据，然后最终获得并补偿剩余的偏心率。该方法是胶囊的偏心率的非接触式，自动，快速，高精度的测量和补偿技术。理论分析和初步实验表明，该方法的偏心率的最大测量范围为直径为1mm的胶囊1.8mm，并且可以在30秒内消除偏心率至小于0.5μm。（c）2018年光学学会。

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《Applied optics》 |2018年第14期|共9页
作者
Li Shaobai; Wang Yun; Wang Qi; Ma Xianxian; Wang Longxiao; Zhao Weiqian; Zhang Xusheng;
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作者单位

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

China Acad Engn Phys Laser Fus Res Ctr POB 919-987 Mianyang 621900 Sichuan Peoples R China;

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

Beijing Inst Technol Beijing Key Lab Precis Optoelect Measurement Inst Sch Opt &

Photon Beijing 100081 Peoples R China;

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正文语种 eng
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Rapid measurement and compensation method of eccentricity in automatic profile measurement of the ICF capsule

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