发动机机油中磨损元素在发动机正常运转中发挥着重要的作用, 对其进行实时检测可以预知事故的发生, 防止发动机进一步磨损, 因此实现机油中磨损元素的探测具有重要的应用价值。归纳了利用原子光谱对机油检测的关键问题, 指出了原子发射光谱技术中的激光诱导击穿光谱(LIBS)技术和其它原子光谱技术在机油样品检测方面的研究进展, 讨论了各种技术的优缺点。介绍了LIBS技术在机油检测方面的优势, 引入了间接烧蚀LIBS技术。该技术不仅保存了LIBS技术本身的优势, 而且大大提高了检测灵敏度。用间接烧蚀LIBS技术探测机油中磨损元素, 具有巨大的应用前景, 对该技术的现场探测应用进行了展望。

Wear elements in engine oil play important roles in the normal operation of engines. Real-time detection of wear elements in engine oil can prevent engine from wearing and predict accidents. Therefore, the detection of wear elements in oil has important application value. The key problems of atomic spectroscopy in oil detection are summarized. The research advances of laser induced breakdown spectroscopy (LIBS) and other techniquesof atomic emission spectroscopy in oil sample detection are pointed out.The advantages and disadvantages of various techniques are analyzed. The advantages of LIBS technology in oil detection are introduced, and then indirect ablative LIBS technology is introduced. The technology of indirect ablative LIBS not only preserves the advantages of LIBS technology itself, but also improves detection sensitivity greatly. The use of indirect ablative LIBS technology to detect wear elements in oil has a great application prospect. The application of this technology in field detection is prospected.