光谱学与光谱分析 |
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Acidity and Temperature Effect on the Fluorescence Characteristics of Hydraulic Oils and Lubricants |
DENG Hu1, 2, ZHOU Xun3, 4*, SHANG Li-ping1, 2, ZHANG Ze-lin1, WANG Shun-li1 |
1. College of Information Engineering, Southwest University of Science and Technology, Mianyang 621010,China 2. Robot Technology Used for Special Environment Key Laboratory of Sichuan Province,Mianyang 621010,China 3. Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China 4. Terahertz Research Center, Chinese Academy of Engineering Physics, Chengdu 610041, China |
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Abstract By analyzing HyJet V phosphate ester hydraulic oil environmental impacts (oil, etc.) and confounding factors (pH, temperature, etc.), the feasibility was studied for the fluorescence detection of aircraft hydraulic oil leaks. By using the fluorescence spectrophotometer at various acidities and temperatures, the fluorescence properties of HyJet V phosphate ester hydraulic oil, Jet Oil II lubricant and 2197 lubricant were gained. The experimental results are shown as following: The fluorescence peaks of HyJet V phosphate ester hydraulic oil, Jet Oil II lubricant and 2197 lubricant are at 362, 405 and 456 nm, respectively. The impact of temperature on HyJet V phosphate ester hydraulic oil is less effective; Jet Oil II lubricant and 2197 lubricant fluorescence intensity decreases with increasing temperature. When acidity increases, the fluorescence peak of HyJet V phosphate ester hydraulic oil gradient shifts from 370 to 362 nm, and the fluorescence intensity decreases; the fluorescence peak of Jet Oil II lubricant is always 405 nm, while the fluorescence intensity decreases; the fluorescence peak of 2197 lubricant at 456 nm red shifts to 523 nm, and double fluorescence peaks appeare. The results are shown as following: under the influence of the environment and interference factors, the fluorescence characteristics of HyJet V phosphate ester hydraulic oil remain unchanged, and distinguish from Jet Oil II lubricant and 2197 lubricant. Therefore, the experiments indicate that the detection of HyJet V phosphate ester hydraulic oil leak is feasible by using fluorescence method.
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Received: 2014-04-15
Accepted: 2014-07-19
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Corresponding Authors:
ZHOU Xun
E-mail: zcm_zx_zky@163.com
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