Diagnostika průmyslových objektů

Abstract

Thesis deals with the reliability of diagnosis vacuum pumps. Its aim is to provide information about efficiency of the testing process. The analysis is divided into three logical units. In the first part we test all measuring stations if their measuring is stabel. We are working with the null hypothesis that the individual stations have measured different results on the same product. In the second part we test a combination of values of parameters that characterize the nonconforming product, determined by the customer. In other words, we ask the question whether certain combinations of values within the limits of the test indicates a fault of the product, which can be seen after some time - at the customer. Or if the setting testing covers all identifiable disorder. We are working with with the null hypothesis that a defect in a product is not captured by current testing. The third point gives a proposal to reduce scrap. Also included is an analysis of the claimed product that highlights the opportunity for improvements in the cleanliness of assembled parts. Data collection took place over a period of 3 months. The results were statistically analyzed.