Problems of development of wireless sensors for experimental modal analysis

• Autorzy: Bojko T. , Lisowski W. , Bednarz J.

Warianty tytułu

PL

Problemy budowy i zastosowania sieci czujników bezprzewodowych w badaniach modalnych

• Języki publikacji: EN

Abstrakty

EN

Experimental identification of structural dynamics properties of large civil engineering structures usually involves application of long signal cables during the experiment. Such cables are heavy, difficult to handle and to be laid by testing engineers, as well as they are often damaged during use. That is why recently more and more often wireless sensors have been applied in modal testing of large civil engineering structures. Authors tested application of Mica2 modules with TinyOS software for PC in measurement system. Possibility of application of GPS synchronisation of measurement of multiple MEMS accelerometers was also studied. Authors present a short description of results of testing of a prototype of the developed wireless vibration measurement system in laboratory and field. The indications for future improvement of the prototype system are discussed.

PL

Eksperymentalna identyfikacja dynamicznych własności strukturalnych budowli wymaga zwykle zastosowania długich przewodów sygnałowych. Takie przewody są ciężkie, kłopotliwe w przenoszeniu i układaniu oraz wrażliwe na powstawanie mechanicznych uszkodzeń w czasie użytkowania. Z tych powodów ostatnio coraz częściej w badaniach modalnych budowli są stosowane czujniki bezprzewodowe. Autorzy przetestowali zastosowanie modułów Mica2 oraz oprogramowania TinyOS dla komputera PC w systemie pomiarowym. Rozważyli także możliwość synchronizacji pomiaru przy pomocy wielu akcelerometrów MEMS z wykorzystaniem GPS. W pracy zaprezentowano opis wyników testowania zbudowanego prototypu bezprzewodowego systemu pomiaru parametrów drgań uzyskane w laboratorium i na rzeczywistym obiekcie. Wskazano kierunki doskonalenia zbudowanego prototypu systemu pomiarowego.

Słowa kluczowe

EN

Experimental Modal Analysis; civil engineering; wireless sensor

PL

eksperymentalna analiza modalna; diagnostyka; obiekt budowlany; czujnik bezprzewodowy

• Wydawca: Polskie Towarzystwo Diagnostyki Technicznej
• Czasopismo: Diagnostyka
• Rocznik: 2009
• Tom: nr 3(51)
• Strony: 49--58
• Opis fizyczny: Bibliogr. 39 poz., rys., tab.

Twórcy

autor

Bojko T.

autor

Lisowski W.

autor

Bednarz J.

• AGH University of Science and Technology, Department of Robotics and Mechatronics, Al. Mickiewicza 30, 30-059 Kraków,

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