塑料光学透镜的磁悬浮检测

赵朋; 颉俊; 傅建中; 陈子辰

doi:10.3788/OPE.20162404.0756

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塑料光学透镜的磁悬浮检测

微纳技术与精密机械 | 更新时间：2020-08-13

- 塑料光学透镜的磁悬浮检测
- Magnetic levitation detection for plastic optical lenses
- 光学精密工程 2016年24卷第4期页码：756-763
- 作者机构：
  
  浙江大学机械工程学院浙江省三维打印工艺与装备重点实验室,浙江杭州,310007
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.51475420)();浙江省自然科学基金资助项目(No.LY14E050017)();中央高校基本科研业务费专项资金资助项目(No.2
- DOI：10.3788/OPE.20162404.0756
  中图分类号： TQ320.7
- 收稿日期：2015-11-27，
  
  修回日期：2016-01-08，
  
  纸质出版日期：2016-04-25
- 稿件说明：
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赵朋, 颉俊, 傅建中等. 塑料光学透镜的磁悬浮检测[J]. 光学精密工程, 2016,24(4): 756-763

ZHAO Peng, XIE Jun, FU Jian-zhong etc. Magnetic levitation detection for plastic optical lenses[J]. Editorial Office of Optics and Precision Engineering, 2016,24(4): 756-763
赵朋, 颉俊, 傅建中等. 塑料光学透镜的磁悬浮检测[J]. 光学精密工程, 2016,24(4): 756-763 DOI： 10.3788/OPE.20162404.0756.

ZHAO Peng, XIE Jun, FU Jian-zhong etc. Magnetic levitation detection for plastic optical lenses[J]. Editorial Office of Optics and Precision Engineering, 2016,24(4): 756-763 DOI： 10.3788/OPE.20162404.0756.

摘要

考虑传统的塑料透镜检测方法操作繁琐、耗时长

本文提出了一种针对小型塑料光学透镜的磁悬浮检测理论与方法

并设计制造出了相关检测装置。该方法利用磁场对顺磁溶液的磁化作用

将逆磁性被测样品(塑料透镜)在溶液中悬浮起来

通过观察透镜在装置中的高度、中心位置和平衡状态下与水平面的偏斜程度

检测透镜是否存在外观不完整和内部存在气泡等不均匀性的缺陷

并确定出透镜缺陷存在的位置。通过合格透镜、外形不完整透镜、内部存在气泡透镜和功能不合格透镜开展了多项实验研究来验证该方法的可行性与有效性。结果显示

该方法的检测精度高、灵敏度高、操作简便且适应性广

在0.5 mm的测量误差下

密度的测量精度高达0.003 g/cm

;对直径小于10 mm的透镜

可检测出总体积在0.017 mm

的内部气泡缺陷。提出的方法在塑料光学透镜的检测方面很有应用潜力。

Abstract

Traditional detecting methods for plastic optical lenses are complicated to operate and very time-consuming. Therefore

a new detection method based on the magnetic levitation theory was proposed for a small plastic lens and a corresponding detection device was designed in this paper. With the detection method

the diamagnetic sample (plastic lens) in the magnetic field of paramagnetic solution was levitated by magnetizing the solution. By observing the height

the centre position and the deflection of the lens in the device

the appearance and interior homogeneity like shrinkage and internal porosity of the lens could be detected. Several experiments on the qualified lenses

the lenses with an incomplete appearance or with interior homogeneity and some of disqualified lenses were performed for verifying the feasibility of the proposed method. The experimental results show that the proposed method is precise sensitive

easy to operate and has wider application fields. The detecting accuracy for density reaches to 0.003 g/cm

under a millimeter scale. Moreover

the method detects the interior porosity of the lens with a diameter less than 10 mm and the sensitivity to the volume of the porosity reaches to 0.017 mm

. The proposed method has great potential for plastic optical lens detection.

关键词

Keywords

references

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