本文介绍和评价了国内外现场用油液污染度测量的方法，并选定光测法进行研究。
This article introduces and evaluates the domestic and foreign on-site hydraulic fluid contamination measurement methods and optical measuring means selected to study.
静电净油是六十年代后期开发的一种净油方法，成功地应用于液压油液污染物的净化。
The electrostatic liquid cleaning method has been developed in the late sixties. It has been successfully adopted for cleaning hydraulic fluid.
采取切实可行的措施控制油液污染，是提高设备运行可靠性、降低运行成本的最有效途径。
To improve the reliability of equipment running procedure and reduce the cost of running, we must adopt the fit measure to control the oil pollution immediately.
因此，采取有效措施去除油液污染物，尤其是固体污染物，是保证工程机械液压系统正常工作的前提。
Therefore, to take effective measures to remove the oil pollution, especially of solid pollutants, is the guarantee of construction machinery hydraulic system a prerequisite for normal work.
本文就其在运行中如何加强维护与保养作些探讨，介绍油液污染、油液过温和空气侵入的危害及应对措施。
The paper investigated the maintenance and service of the equipment and introduced the harm of oil pollution, over oil temperature and air invasion and their counter measures.
对液压系统的油液污染实施控制，对提高系统工作的可靠性，延长液压元件的使用寿命提供了理论依据．。
Optimum control of oil fluid contamination in hydraulic system is provided to theoretical basis for improving functional reliability of the system and increasing service life of hydraulic components.
边缘检测是油液污染颗粒图像处理的重要组成部分，其性能直接影响油液污染度光电检测系统的精度和性能。
The edge detection is an important component of the image-processing for oleo contaminated particle. Its performance influences the precision and performance of detection system directly.
普通齿轮泵具有结构简单、成本低、对油液污染不敏感等特点，但具有流量脉动大、径向力不平衡、噪声高等缺点。
The common gear pump has such merits as simple structure, low cost, insensitive oil pollution, etc. but it has such demerits as high flow pulsation, unbalanced radial force, strong noise, etc.
实验结果表明，在线污染监测方法能给出iso、NAS与SAE油液污染等级，可满足生产现场的在线监测要求。
The experimental results indicate that, it can effer oil contamination classes corresponding to ISO, NAS and SAE, which meets the operating requirements of production field monitoring.
论述了油液污染产生的原因，污染物对液压系统的危害， 油液监测方法和仪器及其工作原理、结构特点和应用范围。
The technology , trend and application of oil monitor were introduced, and the function of oil monitor for equipment lubrication management was pointed out.
工况运行及油样检查结果表明，液压系统的油液污染得到了有效控制，试验台工作可靠性及使用寿命也有了进一步提高。
Actual work situation and oil sample inspection proofed that the oil contamination of hydraulic system is effectively controlled and the work reliability and life of the bench are further increased.
油液污染是液压系统发生故障和工作寿命减少的主要原因，减少油液污染的简单有效措施就是去除油液中的杂质颗粒、保证油液的清洁度。
The contamination is the main reason for the malfunction and reducing of the working lifetime, for solving this problem, it's better to eliminate the dirty particles and keep the oil clean.
液压系统的可靠性和液压元件的使用寿命，在很大程度上取决于液压元件的耐污染能力和系统油液的污染状况。
The reliability of hydraulic system and the service life of hydraulic components depend closely to the contamination resistance and the contaminated condition of the hydraulic oil in the system.
浮环密封和接触式机械密封需要密封油及油液控制系统，其控制系统复杂、维护费用高、污染严重、能耗较大、稳定性较低；
The two kinds of shaft seal have several disadvantages, for example, complicated control system, highly maintenance cost, serious contamination, more power consumption and lower stability.
大力开发生物质的热裂解制油技术，可将低品位的生物质能转化成高品质的、高能量密度，清洁、无污染而且二氧化碳排放为零的生物油液体燃料。
The technology of biomass pyrolysis can convert low-quality biomass into bio-oil that has the character of high-quality, high energy density, cleanness and zero carbon dioxide emission.
在过滤与净化被污染的油液时，静电净油作为一种新技术正在起着重要的作用。
So the electrostatic oil cleaning, as a new technology, is playing an increasingly important role in oil cleaning or filtering.
在过滤与净化被污染的油液时，静电净油作为一种新技术正在起着重要的作用。
So the electrostatic oil cleaning, as a new technology, is playing an increasingly important role in oil cleaning or filtering.
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