EDUCATION > Projects

Test bench for cable- and cable guiding systems used for particle emission measurements


Current trends in the production of micro and nanoproducts in a wide range of industrial sectors, lead to high demands for cleanliness and for becoming clean rooms. For the products to be used inside a cleanroom, it is necessary to test their suitability for a cleanroom. At the Fraunhofer Institute, these tests are regularly carried out on various products. The products that are frequently tested are cable systems and their conduction systems, and lately, the demand for their testing has been growing. For this reason, the Institute needs to test multiple test facilities at the same time because currently each product is tested separately which becomes unsustainable. This thesis objective is to design a test bench for testing particulate emissions for cable systems and their guidance that will allow simultaneous testing of multiple objects. To better understand the problem, at the very beginning a review was given regarding cleanrooms, their importance, as well as an explanation of the concept of cleanroom technologies. Since the test station will be located in a cleanroom, the suitability of cleanroom equipment based on ISO 14644-14 is described in more detail. Then, the research of the market of test objects, cables, and cable carriers was presented, which enabled obtaining guidelines for further development of the test bench. At the end of the research section, a description of the cleanroom where the test bench will be located, the most commonly performed test at the Institute, and the existing devices made for use in a cleanroom are presented. All of the above-provided information serves as guidelines for defining the requirements of the device, which together with the requirements identified during a conversation with experts from the Institute formed a list of requirements for further development. Then the functional structure of the test bench was created, and the solutions for individual functions were given in the morphological chart, after which the concepts were generated. The concepts were evaluated and cross-contamination and laminar flow tests were performed for the selected concept. Finally, the design elaboration of individual components of the selected concept, its subassemblies, and the complete test bench is described. The selected concept was developed and modeled in the Solidworks 2018 software package.



Marija Nikolić




Master thesis