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    Tytuł:
    Certification of Highly Complex Safety-Related Systems
    Autorzy:
    Reinert, D.
    Schaefer, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/89868.pdf
    Data publikacji:
    1999
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    certification
    complex electronic systems
    numerical controller
    power drive
    machining centre
    validation
    verification
    microcomputer
    metrics
    software
    certyfikacja
    systemy elektroniczne
    centra obróbkowe
    mikrokomputery
    oprogramowanie
    Opis:
    The BIA has now 15 years of experience with the certification of complex electronic systems for safety-related applications in the machinery sector. Using the example of machining centres, this presentation will show the systematic procedure for verifying and validating control systems using Application Specific Integrated Circuits (ASICs) and microcomputers for safety functions. One section will describe the control structure of machining centres with control systems using “ integrated safety.” A diverse redundant architecture combined with crossmonitoring and forced dynamisation is explained. In the main section the steps of the systematic certification procedure are explained showing some results of the certification of drilling machines. Specification reviews, design reviews with test case specification, statistical analysis, and walk-throughs are the analytical measures in the testing process. Systematic tests based on the test case specification, Electro Magnetic Interference (EMI) and environmental testing, and site acceptance tests on the machines are the testing measures for validation. A complex software driven system is always undergoing modification. Most of the changes are not safety-relevant but this has to be proven. A systematic procedure for certifying software modifications is presented in the last section of the paper.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 1999, 5, 4; 537-552
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    International Research Into Occupational Safety and Health Protection
    Autorzy:
    Meffert, K.
    Reinert, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/90553.pdf
    Data publikacji:
    2006
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    research priorities
    occupational safety and health
    international comparison
    bezpieczeństwo i higiena pracy
    projektowanie pracy
    badania naukowe
    Opis:
    Are we doing the right thing? Are we setting the right priorities for the future in occupational safety and health research? How does BG (Institution for Statutory Accident Insurance and Prevention) research compare nationally and internationally? As a mosaic of answers to these questions, this article explores international research on priorities in occupational research and analyses these against the backdrop of the nearly 1,000 research projects conducted by 9 institutions from 8 countries in the year 2003.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2006, 12, 4; 347-354
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Safety Studies on Hydraulic Proportional Valves With Electrical Position Feedback
    Autorzy:
    Reinert, D.
    Kimura, T.
    Gorgs, K.- J.
    Powiązania:
    https://bibliotekanauki.pl/articles/90877.pdf
    Data publikacji:
    2006
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    proportional value
    electrical position feedback
    failure behaviour
    hydraulic safety
    fault detection
    zawór
    elektryczność
    hydraulika
    Opis:
    The authors analysed a proportional valve with electrical position feedback for its failure behaviour. Several failures were introduced into the feedback loop, especially into the 2 solenoids and the inductive position transducer. The behaviour of the valve for square and ramp reference signals was recorded and systematically analysed. It was shown that failures could be detected by monitoring the residual signal from the equipment under control or the residual signal from the sensor. It was possible to achieve the safe position within twice the normal response time of the valve by switching off the current of both solenoids. The application of these results for a new generation of safe proportional valves is discussed. The use of the results of these investigations obviates the need for redundancy of the electrical position monitoring arrangement in a safe proportional valve.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2006, 12, 1; 105-115
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ion Microscopy and Tomography
    Autorzy:
    Butz, T.
    Lehmann, D.
    Reinert, T.
    Spemann, D.
    Vogt, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2028912.pdf
    Data publikacji:
    2001-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    41.75.Ak
    72.20.My
    29.30.Kv
    Opis:
    The use of light ions for microscopy and tomography is illustrated by a variety of recent applications in materials and life sciences at the Leipzig high-energy ion-nanoprobe LIPSION with a short comparison to other microscopic techniques. The versatility of ion techniques is exemplified by Rutherford backscattering spectrometry maps of thin films of solar cell materials, particle induced X-ray emission maps of manganese in ancient human bones, particle induced X-ray emission on single aerosol particles withμm size, and scanning transmission ion microscopy and tomography on pigs knee cartilage. Finally, the design of a single ion single living cell bombardment facility is sketched for studies of the cellular response and microdosimetry.
    Źródło:
    Acta Physica Polonica A; 2001, 100, 5; 603-613
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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