光谱学与光谱分析 |
|
|
|
|
|
Monitoring Water in Lubricating Oil with Min-Infrared LED |
YU Liang-wu1, TIAN Hong-xiang1*, MING Ting-feng1, YANG Kun2 |
1. College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China 2. School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China |
|
|
Abstract A method that could be used to quantify the water concentration in ship machinery lubricating oil based on Mid-infrared LED is discussed. A Mid-infrared LED with peak emission wavelength of 2 840 nm and FWHM of 400 nm is used as the light source, the emitting light is partly absorbed by the oil sample, the remaining is received by the infrared detector. The percentage of water is determined according to the absorbance. In the experiment, a optical configuration including the transmission, absorbing and receiving of infrared light is designed, calcium fluoride wafer is used as the window, a hard metal coil with circular section is selected as the washer to get the fixed thickness of oil film accurately, a photoelectric diode with detection wavelength of 2 500~4 800 nm and response time of 10~20 ns is used as the detector of light intensity. Matching with this, a system of signal preamplifier, microcontroller-based data acquisition, storage and communication is developed. Absorbance data of six oil samples with different water mass concentration: 0, 0.062 5%, 0.125%, 0.25%, 0.375% and 0.5% is acquired through experiment. Fitting the data by the method of least squares, a linear equation in terms of absorbance and water concentration is obtained, and the determination coefficient is 0.996. Finally, in order to test the accuracy of this measurement method, using oil sample with water concentration of 0.317 5% to validate the equation, measuring the absorbance by the experimental device, the water content is calculated through the linear equation, the results show that the relative error is 2.7% between the percentage calculated and the real sample, indicating that this method can accurately measure the water concentration in the oil.
|
Received: 2014-03-22
Accepted: 2014-07-21
|
|
Corresponding Authors:
TIAN Hong-xiang
E-mail: hxtianwuhan@aliyun.com.cn
|
|
[1] TIAN Hong-xiang, LIU Yu, WANG Xin(田洪祥, 刘 瑜, 王 鑫). China Ship Repair(中国修船), 2009, 22(2): 35. [2] SUN Qi-hu, TIAN Hong-xiang, GUO Wen-yong(孙齐虎,田洪祥,郭文勇). Lubrication Engineering(润滑与密封),2006: 52. [3] ASTM D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation. [4] GB/T 260—1977 Determination of Water Content in Petroleum Products—Distillation Method(石油产品水分测定法——蒸馏法). [5] ASTM D1744. Test Method for Water in Liquid Petroleum Products by Karl Fischer Reagent. [6] GB 6284—86. General Method for the Measurement of Water in Chemical Products—Gravimetric Method(化工产品中水分含量测定的通用方法—重量法). [7] E2412—10 Standard Practice for Condition Monitoring of In-Service Lubricants by Trend Analysis Using Fourier Transform Infrared (FT-IR) Spectrometry. [8] LI Min-zan(李民赞). Spectroscopy and Its Applications(光谱分析技术及其应用). Beijing: Science Press(北京:科学出版社),2006. 23. [9] Mohammadi L B,Kullmannn F, Holzki M, et al. Optical Sensing and Detection. 2010: 77260M-1-12. [10] Matveev B A, Gavrilov G A, Evstropov V V, et al. Sensors and Actuators B,1997,38-39: 339. |
[1] |
ZHANG Nan-nan1, 3, CHEN Xi-ya1,CHANG Xin-fang1, XING Jian1, GUO Jia-bo1, CUI Shuang-long1*, LIU Yi-tong2*, LIU Zhi-jun1. Distributed Design of Optical System for Multi-Spectral Temperature
Pyrometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 230-233. |
[2] |
ZHANG Ning-chao1, YE Xin1, LI Duo1, XIE Meng-qi1, WANG Peng1, LIU Fu-sheng2, CHAO Hong-xiao3*. Application of Combinatorial Optimization in Shock Temperature
Inversion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3666-3673. |
[3] |
BAI Bing1, 2, 3, CHEN Guo-zhu2, 3, YANG Wen-bin2, 3, CHE Qing-feng2, 3, WANG Lin-sen2, 3, SUN Wei-min1*, CHEN Shuang1, 2, 3*. The Study on Precise and Quantitative Measurement of Flame OHConcentration by CRDS-CARS-PLIF Techniques[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3955-3962. |
[4] |
SHEN Ying, WU Pan, HUANG Feng*, GUO Cui-xia. Identification of Species and Concentration Measurement of Microalgae Based on Hyperspectral Imaging[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3629-3636. |
[5] |
LIU Wen-bo, LIU Jin, HAN Tong-shuai*, GE Qing, LIU Rong. Simulation of the Effect of Dermal Thickness on Non-Invasive Blood Glucose Measurement by Near-Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2699-2704. |
[6] |
ZHANG Jing, GUO Zhen, WANG Si-hua, YUE Ming-hui, ZHANG Shan-shan, PENG Hui-hui, YIN Xiang, DU Juan*, MA Cheng-ye*. Comparison of Methods for Water Content in Rice by Portable Near-Infrared and Visible Light Spectrometers[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2059-2066. |
[7] |
XU Qi-lei, GUO Lu-yu, DU Kang, SHAN Bao-ming, ZHANG Fang-kun*. A Hybrid Shrinkage Strategy Based on Variable Stable Weighted for Solution Concentration Measurement in Crystallization Via ATR-FTIR Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1413-1418. |
[8] |
LOU Deng-cheng, RAO Wei*, SONG Jun-ling, WANG Kai, JIANG Ya-jing, GUO Jian-yu. Research of Carbon Monoxide Concentration Measurement in Combustion Field by Off-Axis Integrated Cavity Output Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(12): 3678-3684. |
[9] |
LONG Jiang-xiong1, 2, ZHANG Yu-jun1*, SHAO Li1*, YE Qing1, 2, HE Ying3, YOU Kun3, SUN Xiao-quan1, 2. Traceable Measurement of Optical Path Length of Gas Cell Based on Tunable Diode Laser Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3461-3466. |
[10] |
HAN Jia-qing1, ZHOU Gui-xia1*, HU Jun1*, CHENG Jie-hong2, CHEN Zheng-guang2, ZHAO Sheng-xue1, LIU Yi-ling1. Near-Infrared Spectroscopy Detection of Pollution Concentration of Agricultural Machinery Lubricating Oil Based on Improved Random
Frog Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3482-3488. |
[11] |
CHEN Cheng1, LI Xiao-ling1, WU Jin-jie2, CHEN Xiang-lei1, WU Rong-jun1, XU Xiao-hui1, ZHU Guo-hua1. MC Simulation and Energy Spectrum Measurement of K Fluorescence Radiation Field[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3595-3600. |
[12] |
JIN Cheng-qian1, 2, GUO Zhen1, ZHANG Jing1, MA Cheng-ye1, TANG Xiao-han1, ZHAO Nan1, YIN Xiang1. Non-Destructive Detection and Visualization of Soybean Moisture Content Using Hyperspectral Technique[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(10): 3052-3057. |
[13] |
LIU Jin, FU Run-juan, HAN Tong-shuai*, LIU Rong, SUN Di. Spectral Analysis of Human Tissues Based on a Direct Effective
Attenuation Coefficient Measurement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(09): 2746-2751. |
[14] |
ZHAO Wen-hao1, 2, LI Jun1, DU Kai1, XIONG Liang1, YIN Shao-yun1, HU Jian-ming3, WANG Jin-yu1, 2*. A High Precision and Large Range Measuring Method for Broadband Light Interferometric Microscopy Based on Phase Unwrapping and
Stitching Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(08): 2411-2417. |
[15] |
WANG Yan-ru, TANG Hai-jun*, ZHANG Yao. Study on Infrared Spectral Detection of Fuel Contamination in Mobil Jet Oil II Lubricating Oil[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(05): 1541-1546. |
|
|
|
|