Temat: measurement tools - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Data processing from the measuring device Ballbar QC20
Autorzy:: Košinár, M.
Kuric, I.
Powiązania:: https://bibliotekanauki.pl/articles/102949.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: data processing
measurement device
CNC machine tools
Opis:: The paper presents an innovative method of data processing from the measurement device – Ballbar QC20W. It was created with a program for data transformation (Visual Basic.NET) and it used Fourier transformation. The paper deals with the measuring method of CNC machine tools using Ballbar QC20W. There is an influence between qualitative parameters of machine tools and qualitative parameters of products (tolerances, roughness, etc.). It is very important to hold the stability of qualitative parameters of products as a key factor of production quality. Therefore, is also important to evaluate the accuracy of machine tools and make prediction of possible accuracy.
Źródło:: Advances in Science and Technology. Research Journal; 2014, 8, 21; 9-12
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Testing of the delay time of wireless communication of CNC machine tools’ probes and controller
Autorzy:: Jankowski, M.
Woźniak, A.
Powiązania:: https://bibliotekanauki.pl/articles/220903.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: probes
CNC machine tools
communication delay
measurement speed
Opis:: Touch-trigger probes for CNC milling machines usually use wireless communication in the radio or IR band. Additionally they enable triggering signal filtering in order to avoid false triggers of the probe. These solutions cause a delay in trigger signal transmission from the probe to the machine tool controller. This delay creates an additional pre-travel component, which is directly proportional to the measurement speed and which is the cause of a previously observed but not explained increase of the pre-travel with the increase of the measurement speed. In the paper, a method of testing the delay time of triggering signal is described, an example of delay time testing results is presented and the previous, unexplained results of other researchers are analysed in terms of signal transmission delay.
Źródło:: Metrology and Measurement Systems; 2018, 25, 2; 377-386
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Monitoring of the Noise Emitted by Machine Tools in Industrial Conditions
Autorzy:: Józwik, J.
Wac-Włodarczyk, A.
Michałowska, J.
Kłoczko, M.
Powiązania:: https://bibliotekanauki.pl/articles/123074.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: noise monitoring
measurement
sound pressure
CNC machine tools
Opis:: The paper presents an analysis of noise emitted by selected machine tools in a production hall (under industrial conditions). Noise monitoring is a fundamental task for maintaining workplaces which are safe and healthy. This paper presents the noise measurements obtained for several machine tools, performed in accordance with the PN ISO 230–5:2002 standard. The identification of noise sources and levels was conducted by means of the UNIT 352 measurement system for DMU 50, BGO-CNC/RV/R, FU 251, FW 801, FWC 25/H. Detection of noise sources in the tested machine tools allows to maintain safety of workers and effective means of noise reduction, which are highly significant from the perspective of minimising noise at various workstations. The method of performing noise measurements at workstations using specific machines is normalised, so that the results of such measurements for different machines could be compared. The test results were presented in the form of diagrams and tables. The results of the tests are concluded by a detailed recommendation for the CNC machine tool operators to use hearing protection when at work. The results showed that the level of noise at the operator’s workstation significantly exceeds the standard at certain machining parameters.
Źródło:: Journal of Ecological Engineering; 2018, 19, 1; 83-93
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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