The Theory And Method Research Of Ferrography Image Recognition

Ferrography can find out machinery lubricate and abrasion broken-down patterns, extent and in which state through analyzing characters of wear particles, such as configuration, quantity, dimension distributing and component. This can confirm the failure reason and provide gist for equipment maintain decision-making. Ferrography image analysis technology combines the computer image dispose technology and ferrography, so it has biggish objectivity and identify wear particles quickly, efficiency and quantificationally. It becomes a hot research aspect in abrasion diagnosis and ferrography analysis.Artificial immune arithmetic is applied in ferrography wear particle image identify technology in the paper and Wear Particle Classifier Based on Artificial Immune System (WPCAIS) is designed. A new application field of artificial immune pattern recognition is developed and a new method of ferrography wear particle image identify is provided.This paper is summarized as follows:1. The background and meaning of topic is discussed. Machine equipment fault diagnosis technology, oil analysis technology and artificial immune system are introduced. According to request of the topic, the main research is expatiated.2. Methods of obtaining ferrography wear particle image are discussed and digital wear particle images in graphics files are read for analyzing. The pretreatment methods of wear particle, such as image division, image filter, image edge inspect, image slender and so on are discussed. Comparing effects after dealing with correlation methods, the common process of ferrography wear particle image treatment is concluded. Characters of different kinds of wear particles are discussed. Character parameters of figure, dimension, texture and color of wear particle are listed.3. Several kinds of biology models and arithmetic derived from are expatiated, including common immune arithmetic, negative chosen arithmetic, immune study arithmetic, clone chosen arithmetic and so on.4. Artificial immune arithmetic is applied in ferrography wear particle image identify technology and WPCAIS is designed. Taking shape factor, the Euler Number and filling...