Comparative analysis of errors that occur when measuring objects on the “Roundtest” roundness measurement device and the “Quick Image” vision measuring machine

К.V. Epifantsev

St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, Russia
epifancew@gmail.com

Al’manac of Modern Metrology № 2 (34) 2023, pages 111–120

Abstract. The paper considers a comparative analysis of measuring systems of the two most com­mon types of measurements — contact and non-contact. The following instruments were se­lec­ted as instruments for conducting the experiment: the “Quick Image” vision measuring system of the 361 series, version C; the “Roundtest RA-120P” roundness measurement device, which measures using a contact probe. Each specialist operating these types of equipment is able to mention many advantages of non-contact and contact methods of measuring the parts, however, each of them has a number of disadvantages. Thus, vibrations have a decisive effect on the results obtained by the contact method, and poor illumination and dustiness of the production room have a decisive effect on the accuracy of the results of the non-contact method. The disadvantage is also the presence of a large number of kinematic connections that affect the error. The relevance of the work is due to the fact that in the conditions of continuous development of industry, it is necessary to use more accurate measuring instruments that do not depend on the influence of external factors, allowing you to quickly identify defective parts. Also, the research presented in the article will be relevant during the development period of import-substituting technologies for the creation of Russian analogues of the presented equipment.

Keywords: roundness measurement device, error, measurements, kinematic connections, vision measuring system.

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