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Design of miniaturized fiber optic gyro MIOC driving circuit 小型化光纤陀螺微驱动电路的设计
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668885
Z. Li, Jun Fu, Teng Lv, Bao Li, Hao Chen
{"title":"Design of miniaturized fiber optic gyro MIOC driving circuit","authors":"Z. Li, Jun Fu, Teng Lv, Bao Li, Hao Chen","doi":"10.1117/12.2668885","DOIUrl":"https://doi.org/10.1117/12.2668885","url":null,"abstract":"In order to realize the miniaturized application of the Fiber Optic Gyroscope (FOG), combined with the characteristics of the drive circuit, the MIOC (Multifunctional Integrated Optical Circuit) drive circuit is simplified and designed, and only the single-chip operational amplifier is used to realize the differential current conversion of the DAC output to the drive voltage and the amplification function. Through simulation and circuit board experiment verification, the improved circuit design meets the driving requirements of MIOC and achieves an effective amplification of nearly ten times the output differential current signal of the DAC. The circuit design has been applied in the miniaturized fiber optic gyroscope of our company, and it has become a practical and reliable driving circuit design scheme.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125928276","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
CFD analysis and optimization of constant flow water saver based on UDF program 基于UDF程序的恒流节水器CFD分析与优化
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668454
Peng Jiang, Yijie Shi, Zhenlei Chen, Yanhao Cui, Fengyuan Yang
{"title":"CFD analysis and optimization of constant flow water saver based on UDF program","authors":"Peng Jiang, Yijie Shi, Zhenlei Chen, Yanhao Cui, Fengyuan Yang","doi":"10.1117/12.2668454","DOIUrl":"https://doi.org/10.1117/12.2668454","url":null,"abstract":"Using the method of combining simulation analysis and experimental test, research on the control of the effluent flow under different water pressures of a constant-flow water saver was carried out. A study of the impact of traffic. The established gas-liquid two-phase flow-liquid CFD transient analysis process based on the UDF program has an error of less than 5% with the test results, which can provide directions for the design improvement and optimization of the constant-flow water saver. In order to improve the calculation efficiency, the corresponding steady-state analysis process is studied. The results show that, compared with the transient analysis process, the accuracy of the steady-state analysis process is over 95%, and the calculation efficiency can be doubled.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114151562","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
Synthesis and powder x-ray diffraction data analysis of quaternary single-phase alloy Al8Cu3FePr 第四系单相合金Al8Cu3FePr的合成及粉末x射线衍射数据分析
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2669075
L. Liang, Degui Li, Lin Chen, Bin Gu, Liting Huang, Lingqian Tang
{"title":"Synthesis and powder x-ray diffraction data analysis of quaternary single-phase alloy Al8Cu3FePr","authors":"L. Liang, Degui Li, Lin Chen, Bin Gu, Liting Huang, Lingqian Tang","doi":"10.1117/12.2669075","DOIUrl":"https://doi.org/10.1117/12.2669075","url":null,"abstract":"Quaternary alloy Al8Cu3FePr was melted in the nonconsumable arc-furnace under an argon atmosphere. The microstructure of the alloy was observed and analyzed by scanning electron microscope after high temperature annealing. It indicates that the alloy is a single-phase alloy with uniform chemical composition. Then, the crystal structure of Al8Cu3FePr alloy was determined by powder x-ray diffraction technology. The results show that Al8Cu3FePr is isostructural with Al8Cu4Pr crystallizes in the Mn12Th-type structure, lattice parameters a = 8.8299(1) Å, c = 5.1582(1) Å, unit-cell volume V = 402.18 Å3 , formula units per unit cell z = 2, calculated density ρx = 4.981 g/cm3 , F30 = 122.6(0.006, 46), the space group I4/mmm(No.139), and the reference intensity ratio value obtained experimentally is 1.20.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114419343","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 the electronic properties of In2O3 doped with Eu3+: a first principle calculation 掺杂Eu3+的In2O3的电子性质研究:第一性原理计算
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668534
Fengxue Tan, Guangsi Ma, Jinhua Li, Li Guan
{"title":"Study on the electronic properties of In2O3 doped with Eu3+: a first principle calculation","authors":"Fengxue Tan, Guangsi Ma, Jinhua Li, Li Guan","doi":"10.1117/12.2668534","DOIUrl":"https://doi.org/10.1117/12.2668534","url":null,"abstract":"As an n-type wide band gap nanomaterial (2.7-2.9 eV), In2O3 has an important application in gas sensing, light-emitting diodes, semiconductor lasers, medical imaging and other fields. Research shows that the luminous efficiency of In2O3 can be improved through rare earth doping. Eu3+, Er3+ doping has been widely studied, but there is no relevant explanation for the transition mechanism. In this paper, the formation energy of Eu3+ doped in different site as a functional of temperature and electronic properties was calculated by using first principal calculations. The result showed that under O-rich conditions, the formation energy is negative below 500 K regardless of the doping site, which proves that rare earth atoms below 500 K are very easy to be doped, especially Eu3+ at the In1(3) (or In1) site and the Eu3+ doped decrease the band gap. Then the best synthesis conditions are found to determine the doping site, which provides a theoretical basis for the experiment. At the same time, considering the experimental conditions oxygen vacancy (VO) also exist, we calculated the band structure of the In2O3 with VO and Eu3+ doped. It provides a basis for in-depth analysis of the function of impurity energy levels formed after rare earth element doping in the experiment from the matrix to the luminous center.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130381109","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 control strategy for cathode pressures in proton exchange membrane fuel cell 质子交换膜燃料电池阴极压力控制策略研究
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2669868
Yafu Zhou, Haoran Lv, Binfei Hu
{"title":"Research on control strategy for cathode pressures in proton exchange membrane fuel cell","authors":"Yafu Zhou, Haoran Lv, Binfei Hu","doi":"10.1117/12.2669868","DOIUrl":"https://doi.org/10.1117/12.2669868","url":null,"abstract":"In order to mitigate the adverse effects of cathode gas pressure fluctuations on the lifetime of a Proton Exchange Membrane Fuel Cell (PEMFC), a model of a cathode supply system with a bypass valve structure was developed, and a pressure cooperative control strategy was established based on this structure. Bench tests have verified that the proposed structure and control strategy has a good control effect on the sudden pressure change. Pressure fluctuations can be controlled to around 50Pa under the step conditions used in the test, and the absolute value of the pressure inside the pipeline can be controlled to the preset target, which helps to improve the life of the stack.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115653061","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
Coupled multi-physics field simulation research of magneto-rheological elastomeric magneto-shear mechanical properties based on COMSOL 基于COMSOL的磁流变弹性体磁剪切力学性能耦合多物理场仿真研究
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668757
R. Li, Shangang Ma, F. Jin, S. Yin, Chen Nian, Ning Xin, Quanchang Yu
{"title":"Coupled multi-physics field simulation research of magneto-rheological elastomeric magneto-shear mechanical properties based on COMSOL","authors":"R. Li, Shangang Ma, F. Jin, S. Yin, Chen Nian, Ning Xin, Quanchang Yu","doi":"10.1117/12.2668757","DOIUrl":"https://doi.org/10.1117/12.2668757","url":null,"abstract":"Magnetorheological Elastomers (MREs) are a new type of intelligent magnetically controlled material consisting of a polymer matrix and magnetic particles. The modulus of elasticity of MREs varies with the external magnetic field strength due to the electromagnetic stress between the internal magnetic particle. However, the weak magnet-oenological effect of MREs limits their development. In order to improve the performance of the MREs, a two-dimensional model of MREs is developed based on the equivalent volume cell method, and the force-magnetic coupling analysis is carried out with COMSOL. In this paper, the effects of volume fraction, particle distribution, and magnetic field strength on the magnetostatic shear mechanical properties of MREs were investigated. The results show that: the stress distribution inside of MREs is mainly concentrated on the particles and the contact position between the particles and air. Increasing the magnetic field and the magnetic particle content can effectively improve the magneto-mechanical properties of MREs. Increasing the magnetic field from 0.5T to 1.7T, the magnetic shear modulus was increased by 8.81%. Increasing the particle volume fraction from 15% to 60%, the magnetic shear modulus was increased by 313.64%. Decreasing the particle distance in the chain contribute to the magneto-mechanical properties enhancement.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129430395","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 underwater monitoring system based on Φ-OTDR distributed fiber optic sensors 基于Φ-OTDR分布式光纤传感器的水下监测系统研究
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668468
Xinlong Zheng, Zhichu Lei, Tieyi Chen, Z. Lu, Yuan Li
{"title":"Research on underwater monitoring system based on Φ-OTDR distributed fiber optic sensors","authors":"Xinlong Zheng, Zhichu Lei, Tieyi Chen, Z. Lu, Yuan Li","doi":"10.1117/12.2668468","DOIUrl":"https://doi.org/10.1117/12.2668468","url":null,"abstract":"Stable operation of underwater systems is critical to economic development. However, the system is exposed to certain security risks during the long working cycle due to the complex underwater environment. Therefore, real-time dynamic monitoring of these systems is even more important. We are committed to responding to external disturbances in a timely manner and minimizing damage. In addition, we should exclude the disturbance from the water waves when monitoring, which also increases the difficulty of determining the disturbance for underwater monitoring. This paper designs an underwater monitoring system based on phase-sensitive optical time-domain reflectometer distributed fiber-optic sensor, which can make more accurate judgment of underwater disturbance. At the same time, it has the advantages of enough monitoring range, long-term working ability and large frequency response.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128905042","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
Underwater image restoration based on channel compensation and dark channel prior 基于信道补偿和暗信道先验的水下图像恢复
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668558
Yuanchao Lou, Jianding Yu, Zhou Wang
{"title":"Underwater image restoration based on channel compensation and dark channel prior","authors":"Yuanchao Lou, Jianding Yu, Zhou Wang","doi":"10.1117/12.2668558","DOIUrl":"https://doi.org/10.1117/12.2668558","url":null,"abstract":"Due to the absorption and scattering of light by water medium and suspended particles, underwater images come with color deviation and blurred details. For different light absorption in different underwater environments, an adaptive compensation method for local color channels is proposed to enhance the compensation for severe attenuation areas, which is suitable for underwater scenes with multiple color deviations. The dark channel prior is used to remove the detail blurring caused by scattering, the multi-scale Gaussian convolution and gamma correction are adopted to estimate the local light, and the tolerance parameter is used to increase the transmittance of bright areas to compensate for the dark channel prior conditions. The enhanced image quality is evaluated by Underwater Image Quality Measurement (UIQM), Average Gradient (AG), and entropy. Experimental data show that the method improves the color deviation of underwater images in different environments, enhances color information, and improves the contrast of images.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131852779","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 annular beam shaping system based on freeform surface 基于自由曲面的环形梁成形系统设计
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668490
Ying Xing, Haotong Ma, Bingxu Chen
{"title":"Design of annular beam shaping system based on freeform surface","authors":"Ying Xing, Haotong Ma, Bingxu Chen","doi":"10.1117/12.2668490","DOIUrl":"https://doi.org/10.1117/12.2668490","url":null,"abstract":"Laser is widely used in manufacturing, information transmission, biotechnology and other fields, but these fields often need the input beam with specific intensity distribution, and the Gaussian beam needs beam shaping to achieve the required illuminance distribution. Annular flattened beam has great demand in satellite communication, laser high-speed welding and other fields. The existing beam shaping system needs to compensate off-axis aberration and chromatic aberration, and its design process and system structure are complex. In this paper, we propose a design method of coaxial reflection annular beam shaping system based on geometric optics principle. Through ray mapping method to establish a mapping relationship, through geometrical optics principle to derive the freeform surface equation. We constructed the beam shaping system of the double freeform mirror, which can realize the annular flattened beam with a uniformity of 96.35%. Compared with the existing beam shaping system, the coaxial double reflection system has fewer optical elements, more compact structure, less calculation of optical element structure, and avoids off-axis aberration and chromatic aberration under the condition of similar shaping uniformity.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"20 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134504311","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 a high performance Sn-doped ZnO thin film MSM UV photodetector 高性能掺锡ZnO薄膜MSM紫外光电探测器的设计
Optical Technology, Semiconductor Materials, and Devices Pub Date : 2023-02-14 DOI: 10.1117/12.2668855
Yantao Liu, Wenxia Wang, Jianping Ma
{"title":"Design of a high performance Sn-doped ZnO thin film MSM UV photodetector","authors":"Yantao Liu, Wenxia Wang, Jianping Ma","doi":"10.1117/12.2668855","DOIUrl":"https://doi.org/10.1117/12.2668855","url":null,"abstract":"Sn-doped ZnO thin film was prepared to enhance its photoelectric performance, and the ZnO based photodetector was fabricated by co-sputtering method. The I-V characteristic of the detector under different Sn doped DC sputtering power, the ultraviolet light source was set at 365 nm with 0.5 mW power. The examined photodetector performance manifest that optimum Sn doping level is investigated at 15 W, the maximum photocurrent and spectral responsivity are obtained to be 4.39 mA and 24.4 A/W, the fastest time response is obtained to be tr=29.0 ms and tf =33.2 ms.","PeriodicalId":259102,"journal":{"name":"Optical Technology, Semiconductor Materials, and Devices","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117093424","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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