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1. 中国矿业大学 机电工程学院,江苏 徐州,221116
2. 江苏师范大学 物理与电子工程学院,江苏 徐州,221116
收稿日期:2013-04-28,
纸质出版日期:2014-01-15
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袁博宇, 李威, 罗成名. 溶液浓度变化实时检测系统的设计[J]. 光学精密工程, 2014,22(1): 18-23
YUAN Bo-yu, LI Wei, LUO Cheng-ming. Design of real-time measurement system for solution concentration changes[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 18-23
袁博宇, 李威, 罗成名. 溶液浓度变化实时检测系统的设计[J]. 光学精密工程, 2014,22(1): 18-23 DOI: 10.3788/OPE.20142201.0018.
YUAN Bo-yu, LI Wei, LUO Cheng-ming. Design of real-time measurement system for solution concentration changes[J]. Editorial Office of Optics and Precision Engineering, 2014,22(1): 18-23 DOI: 10.3788/OPE.20142201.0018.
设计了一套基于DSP视频信号处理的浓度检测系统
用于实时动态监测溶液的二维浓度分布变化。利用马赫-曾德尔干涉仪检测溶液折射率变化
用CCD现场记录干涉条纹
最后用DSP实时处理干涉条纹视频图像以获取溶液浓度变化。介绍了系统的硬件框架以及视频信号处理算法。实验测试显示
该系统能对单一溶质溶液浓度变化进行实时定量检测;在多溶质条件下
通过分析主要溶质浓度的变化
能定量估算主要溶质的浓度变化。以铁在浓度为0.5 mol/L的H
2
SO
4
溶液中、扫描速度为2 mVs
-1
的动电位极化实验为例
测得阳极活化区的电位为-0.428 V时
电极/溶液界面处FeSO
4
的浓度峰值为(9.20.2)10
-3
mol/L。实验结果表明
该系统精度较高
稳定性好
能够对溶液浓度变化进行实时在线检测。
A concentration measuring system based on DSP video processing was established to monitoring dynamically two-dimensional concentration changes for solution. The refractive index changes of the solution were detected by a Mach-Zehnder interferometer
and the interferometric fringes were recorded by a CCD on site. Finally
a DSP was used to process the video images of interferometric fringes to obtain the solution concentration changes. Furthermore
both the hardware platform and the video-processing algorithm of the system were described in detail. The experimental test indicates that the system can provide quantitative measurement for a single-component solution and a multiple-component solution with one main component change. An experiment on potentiodynamic polarization of the electrode in the H
2
SO
4
solution with a concentration of 0.5 mol/L at 2 mVs
-1
shows that the peak concentration of FeSO
4
solution at the electrode/electrolyte interface is (9.2 0.2)10
-3
mol/L when the iron electrode potential is -0.428 V. The system has high precision and strong stabilization in online testing and can be employed in measurement of the concentration changes of the solution in real time.
MARQUET P, RAPPAZ B, MAGISTRETTI P J, et al.. Digital holographic microscopy: a noninvasive contrast imaging technique allowing quantitative visualization of living cells with subwavelength axial accuracy [J]. Optics Letters, 2005, 30: 468-470.
WANG Y X, WANG D Y, ZHAO J, et al.. Non-invasive monitoring of living cell culture by lensless digital holography imaging [J]. Chinese Optics Letters, 2011, 9(3): 030901-1.
潘锋, 肖文, 刘烁. 一种适用于长期定量观察生物活细胞的数字全息显微方法[J]. 中国激光, 2011, 38(5): 0509001-1.
PAN F, XIAO W, LIU SH. Digital holographic microscopy for long-term quantitative phase-contrast imaging of living cells [J]. Chinese Journal of Lasers, 2011, 38(5): 0509001-1. (in Chinese)
MICCIO L, FINIZIO A, PUGLISI R, et al.. Dynamic DIC by digital holography microscopy for enhancing phase-contrast visualization [J]. Biomedical Optics Express, 2011, 2(2): 331-344.
YU X L, SUN Y, JIANG H Z, et al.. Growth kinetics of the metastable tetragonal phase of potassium dideuterium phosphate (DKDP) crystals [J]. Journal of Crystal Growth, 1996, 166: 195-200.
KNOX C, SAYANO R R, SEO E T, et al.. Holographic interferometry in electrochemical studies [J]. Journal of Physical Chemistry, 1967, 71(9): 3102-3104.
TSCHULIK K, YANG X G, MUTSCHKE G, et al.. How to obtain structured metal deposits from diamagnetic ions in magnetic gradient fields [J]. Electrochemistry Communications, 2011, 13: 946-950.
MUHLENHOFF S, MUTSCHKE G, KOSCHICHOW D, et al.. Lorentz-force-driven convection during copper magnetoelectrolysis in the presence of a supporting buoyancy force [J]. Electrochimica Acta, 2012, 69: 209-219.
YANG X G, TSCHULIK K, UHLEMANN M, et al.. Enrichment of paramagnetic ions from homogeneous solutions in inhomogeneous magnetic fields [J]. The Journal of Physical Chemistry Letters, 2012, 3: 3559-3564.
YUAN B Y, WANG C, LI L, et al.. Investigation of the effects of the magnetic field on the anodic dissolution of copper in NaCl solutions with holography [J]. Corrosion Science, 2012, 58: 69-78.
LI W, YUAN B Y, WANG C, et al.. Dynamic sensing of the localized corrosion at the metal/solution interface [J]. Sensors, 2012, 12(4): 4962-4973.
YUAN B Y, ZHANG J L, GAO G F, et al.. Dynamic observation of the diffusion layer in anodic processes of the Fe/H2SO4 system with digital holography [J]. Electrochemistry Communications, 2013, 27: 116-119.
李文江, 徐毓娴, 张志利. 一种观察溶液浓度轮廓的新方法 [J]. 光学 精密工程, 2001, 9(3): 257-259.
LI W J, XU Y X, ZHANG ZH L. Novel measuring method of solution concentration profiles [J]. Opt. Precision Eng., 2001, 9(3): 257-259. (in Chinese)
姜德生, 魏仁选. 基于光纤F-P干涉波长的溶液浓度测量系统研究[J]. 中国激光, 2004, 31(9): 1127-1131.
JIANG D SH, WEI R X. Solution concentration measurement system based on fiber Fabry-Perot interference wavelength [J]. Chinese Journal of Lasers, 2004, 31(9): 1127-1131. (in Chinese)
杨秀芳, 王小明, 高宗海, 等. 基于法布里-珀罗干涉仪的液体浓度实时检测系统的研究[J]. 光学学报, 2005, 25(10): 1343-1346.
YANG X F, WANG X M, GAO Z H, et al.. Research on liquid concentration real-time detecting system based on Fabry-Perot interferometer [J]. Acta Optica Sinica, 2005, 25(10): 1343-1346. (in Chinese)
赵明富, 廖强, 陈艳, 等. 光纤生物量浓度在线检测传感器[J]. 光学 精密工程, 2007, 15(4): 478-485.
ZHAO M F, LIAO Q, CHEN Y, et al.. Fiber sensor for biomass online testing [J]. Opt. Precision Eng., 2007, 15(4): 478-485. (in Chinese)
赵明富, 钟年丙, 罗彬彬, 等. 用于生物量浓度在线检测的光纤衰减全反射传感器[J]. 光学 精密工程, 2010, 18(8): 1707-1714.
ZHAO M F, ZHONG N B, LUO B B, et al.. Optical fiber attenuated total reflection sensor for on-line measurement of biomass concentration [J]. Opt. Precision Eng., 2010, 18(8): 1707-1714. (in Chinese)
吴斌, 骆晓森, 陆建, 等. 用激光拉曼频移测定乙醇水溶液的浓度[J]. 光学 精密工程, 2011, 19(2): 392-396.
WU B, LUO X S, LU J, et al.. Determination of ethanol concentration of aqueous solution by using Raman stretching frequency shifts [J]. Opt. Precision Eng., 2011, 19(2): 392-396. (in Chinese)
袁博宇, 吴晓娟, 陈慎豪, 等. 基于干涉原理和图像处理方法的浓度变化分布测量[J]. 中国激光, 2007, 34(1): 82-88.
YUAN B Y, WU X J, CHEN SH H, et al.. Measurement of concentration change distribution based on theory of interference and image processing methods [J]. Chinese Journal of Lasers, 2007, 34(1): 82-88. (in Chinese)
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