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Light field image array generation for 3D printing image based on backward ray tracing 基于反向光线追踪的3D打印图像光场图像阵列生成
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667942
Yang Chen, Wen Qiao
{"title":"Light field image array generation for 3D printing image based on backward ray tracing","authors":"Yang Chen, Wen Qiao","doi":"10.1117/12.2667942","DOIUrl":"https://doi.org/10.1117/12.2667942","url":null,"abstract":"In terms of light field image array generation, the traditional method of multi-view parallax image synthesis has problems such as computational redundancy and slow pixel mapping. We propose a new design method for light field image arrays for 3D printed images based on backward ray tracing techniques. The farthest point of collision is found when a ray collides with an object. The rendering time is greatly reduced compared to traditional methods, and only related to the resolution of light field image array. Combine with microlens array, 3D printing image with continuous and dynamic parallax effects is obtained, the correctness of the algorithm is proved.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"6 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114009907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on laser degumming and non-destructive technology of rubber press valve 橡胶压阀激光脱胶及无损技术研究
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2668336
Bing Tang, Chen Liang, Yongbin Li, Chen Wang, Ming Hao, Yangyang Zhang, Tao Huang, Guang Li, Jie Zhu
{"title":"Study on laser degumming and non-destructive technology of rubber press valve","authors":"Bing Tang, Chen Liang, Yongbin Li, Chen Wang, Ming Hao, Yangyang Zhang, Tao Huang, Guang Li, Jie Zhu","doi":"10.1117/12.2668336","DOIUrl":"https://doi.org/10.1117/12.2668336","url":null,"abstract":"Laser degumming is a new technology in the maintenance of press valve, which has the advantages of high efficiency, high accuracy, complete degumming and low pollution. However, the metal matrix is prone to thermal damage when subjected to laser action. It is found that 1Cr18Ni9Ti is the most prone to oxidation. If 1Cr18Ni9Ti is not damaged, 2A12 and HPB59 materials will not be damaged under the same laser parameter processing. The internal metallographic structure of 1Cr18Ni9Ti sample does not change when it is oxidized at the boundary without illumination. Therefore, if the nonilluminated surface does not oxidize, it can be considered that the internal metallography of the press valve has not changed; The simulation model of rubber removal was established, and it was found that the method of switching off and on light could control the temperature in the process. When the time ratio of switching on and off light was 1: 3, the rubber residue could be completely removed without damaging the rubber press valve. The simulation parameters are applied to the actual parts experiment, and the simulation results are verified to be reliable, the temperature is controllable and the parts have no damage. The research results in this paper can achieve the task of rubber removal without damaging the substrate.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"84 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114022558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of gas corrosion testing on the gray scale value of the security camera 气体腐蚀检测对安防摄像机灰度值的影响
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667328
T. Wang
{"title":"The impact of gas corrosion testing on the gray scale value of the security camera","authors":"T. Wang","doi":"10.1117/12.2667328","DOIUrl":"https://doi.org/10.1117/12.2667328","url":null,"abstract":"The security camera is widely used. With the long-term aging effect of the environment and the increase in service time, its imaging quality will inevitably decrease. However, there are few research on the impact of environmental aging tests on its imaging quality. This article focuses on the gray scale level of image quality. Considering the complexity of the use environment of the camera, the imaging quality of the typical optical imaging system before and after the gas corrosion testing is analyzed. At the same time, the impact of different light source conditions is also considered here. Studies have found that after environmental testing, the gray scale resolution ability of the imaging system decreases. In addition, light source conditions have a greater impact on its gray scale resolution ability. In the case of optical compensation, the gray scale value is significantly reduced, and the camera cannot perform gray scale resolution. In this paper, two test methods, transmitted standard board method and reflective standard board method, are used to analyze the gray scale value. Studies have found that the results of the two methods are self-consistent.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128130759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of DTS in high-temperature monitoring of alumina electrolysis bath DTS在氧化铝电解液高温监测中的应用
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667785
Zhibin Wen, Zhengji Zhang, Zengjin Lu, Liang Yan, Fubin Ning, Guozhi Cheng, Shixi Zhang, Y. Ning, Tong Liu
{"title":"Application of DTS in high-temperature monitoring of alumina electrolysis bath","authors":"Zhibin Wen, Zhengji Zhang, Zengjin Lu, Liang Yan, Fubin Ning, Guozhi Cheng, Shixi Zhang, Y. Ning, Tong Liu","doi":"10.1117/12.2667785","DOIUrl":"https://doi.org/10.1117/12.2667785","url":null,"abstract":"Large alumina electrolysis baths operate at high electrical current and high temperature hence a number of safety hazards. Conventional safety inspection relies on manual temperature monitoring using IR remote thermometers, which is not in real time and not reproducible. This paper presents a distributed fiber optic temperature sensor (DTS) system based on Raman scattering principle. The operation principle and method of deployment of the DTS system in an alumina electrolysis base and on-site monitoring results are discussed. The field measurement results show that the accuracy of the measurement of the distributed fiber optic temperature measurement system meets the application requirements and have great application potential.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132930853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A high-precision welding method of pipeline flowmeter 一种管道流量计高精度焊接方法
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667468
Y. Liu, Ning Huang, Wenqi Zhang, Rongchang Dong, Nang Jiang, Changlu Li, Chang-liang Zhao
{"title":"A high-precision welding method of pipeline flowmeter","authors":"Y. Liu, Ning Huang, Wenqi Zhang, Rongchang Dong, Nang Jiang, Changlu Li, Chang-liang Zhao","doi":"10.1117/12.2667468","DOIUrl":"https://doi.org/10.1117/12.2667468","url":null,"abstract":"Aiming at the difficulties of high welding accuracy and weld quality of ultrasonic flowmeter, a high-precision and highquality welding method for pipeline products is proposed. Through simulation analysis of weld thermal deformation, the influence of different welding process parameters on weld thermal deformation is determined, the coaxiality of products and the flatness of installation surface are ensured by designing welding equipment, the starting and ending arc position of pipeline automatic welding is set by adjusting pre-welding assembly quality combined with weld thermal deformation law, and the welding depth and welding quality are ensured by setting welding parameters by sections, thus achieving high precision and high quality of ultrasonic flowmeter. This technology has important practical significance for high-precision and high-quality welding of pipelines.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117071197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of a microstructure fiber glycerol sensor based on lossy mode resonance 基于损耗模共振的微结构光纤甘油传感器仿真
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667880
Yuanchong Zhang, Zhaoyue Liu, Lina Zeng, Zaijin Li, Dong Xu, Hao Chen, Zhongliang Qiao, Yingliang Qu, Guojun Liu, Lin Li
{"title":"Simulation of a microstructure fiber glycerol sensor based on lossy mode resonance","authors":"Yuanchong Zhang, Zhaoyue Liu, Lina Zeng, Zaijin Li, Dong Xu, Hao Chen, Zhongliang Qiao, Yingliang Qu, Guojun Liu, Lin Li","doi":"10.1117/12.2667880","DOIUrl":"https://doi.org/10.1117/12.2667880","url":null,"abstract":"In this paper, we design and theoretically simulate a highly sensitive photonic crystal fiber sensor based on lossy mode resonance. An ITO/HfO2 bilayer was coated onto the exposed area of the fiber core as the sensing material. This asymmetrical structure can lead both TM-and TE-polarization to improve the detection performance. In addition, we further investigated the influence of the ratio of ITO/HfO2 bilayer film thickness on the maximum sensitivity of the proposed sensor and finally reached a maximum sensitivity at 1.92nm/1% for glycerol solutions detection, which plays a significant role in the optical fiber sensor in the field of glycerol detection.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"238 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115757211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on high sensitivity Mz rubidium laser optically pumped magnetometer 高灵敏度Mz铷激光光泵磁力仪的研究
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2668335
Kun Xu, Yujie Xiang, Xiuyan Ren, Guobao Wang
{"title":"Research on high sensitivity Mz rubidium laser optically pumped magnetometer","authors":"Kun Xu, Yujie Xiang, Xiuyan Ren, Guobao Wang","doi":"10.1117/12.2668335","DOIUrl":"https://doi.org/10.1117/12.2668335","url":null,"abstract":"The high sensitivity Mz rubidium laser optically pumped magnetometer has important applications in geomagnetic field measurement and geophysics exploration. In this paper we analyze the principle of Mz rubidium laser optically pumped magnetometer. We take rubidium 87 isotope ( 87𝑅𝑏) as the core material of magnetometer, set up a high sensitivity laser optically pumped magnetometer experimental system and carry out magnetic measurement experiments. The experimental results show that the signal strength is 185 mV, the line width is 1.55 kHz. The intrinsic sensitivity of this magnetometer is 33.51 pT/Hz1/2. The research work provides technical support for the development of high sensitivity rubidium laser optically pumped magnetometer.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115501841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development status and prospect of on orbit precision testing instruments for aerospace medicine 航天医学在轨精密检测仪器的发展现状与展望
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667892
Yongchao Zhang, Tie-li Zhang, Xiaoxu Liu, Lin Liu, Yulu Wang, Fan Yang
{"title":"Development status and prospect of on orbit precision testing instruments for aerospace medicine","authors":"Yongchao Zhang, Tie-li Zhang, Xiaoxu Liu, Lin Liu, Yulu Wang, Fan Yang","doi":"10.1117/12.2667892","DOIUrl":"https://doi.org/10.1117/12.2667892","url":null,"abstract":"Aerospace medical on orbit inspection instruments have played a great role in the on orbit health inspection and monitoring of astronauts because of their high detection accuracy, portable use and strong environmental adaptability. This paper briefly describes the main detection methods of on orbit medical detection instruments, including electrochemical method, dry chemistry method, flow cytometry combined with fluorescence detection technology, chemiluminescence immunoassay technology and enhanced Raman spectroscopy. The application direction and current situation of on orbit precision detection instruments in the field of aerospace medicine are introduced, and their future development trends are prospected.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129493370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on spectral lines to improve the measurement accuracy of H2O molecular concentration based on TDLAS technology 基于TDLAS技术提高水分子浓度测量精度的谱线研究
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2667810
Yifan Wang, Jinfeng Zhou, Yung-chul Ju, Xiaosong Shi, Yuhan Zhang, Shaojie Guan
{"title":"Study on spectral lines to improve the measurement accuracy of H2O molecular concentration based on TDLAS technology","authors":"Yifan Wang, Jinfeng Zhou, Yung-chul Ju, Xiaosong Shi, Yuhan Zhang, Shaojie Guan","doi":"10.1117/12.2667810","DOIUrl":"https://doi.org/10.1117/12.2667810","url":null,"abstract":"H2O is an important molecule in the atmosphere, which is closely related to climate change and industrial applications (such as combustion process). The detection of trace water vapor concentration is of great significance in earth ecology and industrial production. Tunable diode laser absorption spectroscopy (TDLAS) inverses the gas concentration by measuring the gas absorption spectrum. The wavelength of the common characteristic absorption peak of H2O molecule is 7181.16 cm-1. The spectral absorption peaks of different wavelengths are analyzed in the paper. It is proved that when 7306.75 cm-1 characteristic absorption peak is used to replace 7181.16 cm-1 characteristic absorption peak for concentration inversion, the influence can be reduced and the measurement accuracy can be improved by combining the target peak with the interference peak.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127903472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of three-class ultra-efficient stray light suppression baffle 三级超高效杂散光抑制挡板设计
International Conference on Precision Instruments and Optical Engineering Pub Date : 2023-02-27 DOI: 10.1117/12.2668091
Yu Jin, Shangmin Lin, Hu Wang, Jiang Qiao, Haoyu Yan, Xingyan Wang
{"title":"Design of three-class ultra-efficient stray light suppression baffle","authors":"Yu Jin, Shangmin Lin, Hu Wang, Jiang Qiao, Haoyu Yan, Xingyan Wang","doi":"10.1117/12.2668091","DOIUrl":"https://doi.org/10.1117/12.2668091","url":null,"abstract":"The ultra-efficient standard light baffle plays an important role in the calibration of the stray light test system. In this paper, a three-class baffle is designed. And a design scheme of the baffle with honeycombed wall is proposed, by analyzing the stray light transmission model and suppression mechanism, which can meet the requirements of a baffle with ultra-efficient stray light suppression capability. A simulation model of the baffle was established. The simulation of baffle show that when the stray light suppression angle is greater than 8°, the PST value of the baffle reaches 10-6 magnitude. When the stray light suppression angle is greater than 17°, the PST value of the baffle reaches 10-12 magnitude, which can meet the needs of ultra-efficient calibration of laboratory stray light test systems.","PeriodicalId":227067,"journal":{"name":"International Conference on Precision Instruments and Optical Engineering","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128082897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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