Materiały elektrostrykcyjne
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locuit şi social – culturale, construcţiile industriale şi agrozootehnice.
La proiectarea structurilor de fundare directă în condiţii speciale de teren (pământuri sensibile la
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- 6. Charakterystyka polimerów odkształcających się. Działają na zasadzie dyfuzji jonów. Do zasilania potrzebne są jedynie baterie, bo znaczne odkształcenie tworzy się pod wpływem zmiany napięcia o pojedyncze wolty. Jednak, aby prawidłowo działały powinny być wilgotne, dlatego też muszą być szczelnie zamykane w elastycznych koszulkach. Polimery jonowe Charakterystyka Polimery
- 7. Charakterystyka polimerów odkształcających się. Uaktywniają się prze pole elektryczne. Wymagają więc stosunkowo wysokich napięć, które czasem powodują nieprzyjemne elektrowstrząsy. Polimery te reagują z dużą siła i szybko. Nie potrzebują powłok ochronnych. Wymagają jedynie niewielkich ilości prądu do utrzymania pozycji. Polimery elektronowe Charakterystyka Polimery
- 8. Zastosowanie elastomerów dielektrycznych Dzięki warstwie elastomeru dielektrycznego rozpiętego na sztywnej ramce tworzy się siłownik membranowy. Za zwyczaj membrana jest wstępnie odkształcona, np. za pomocą sprężyny, umożliwia to po przyłożeniu napięcia wyginanie się w określoną stronę i nie wpadanie w przypadkowe drgania. Siłowniki membranowe wykorzystuje się np. w pompach lub głośnikach. Siłownik membranowy Charakterystyka Zastosowanie
- 9. Zastosowanie elastomerów dielektrycznych Pierwszym krokiem produkcji jest nawijanie kilku warstw laminowanych wstępnie naprężonych elastomerów dielektrycznych na sprężynę. Natomiast wstępne naprężenie elastomeru wzdłuż osi ściska sprężynę. Napięcie elektryczne przykładane do warstwy elastomeru powoduje zmniejszenie jej grubości i wydłużenie, co prowadzi do wydłużenia całego elementu. Siłownik liniowy Charakterystyka Zastosowanie
- 10. Zastosowanie elastomerów dielektrycznych Różni się od głośnika, tym że ma komorę na płyn i dwa zawory zwrotne. Pompa Tworzy go rozpięta warstwa elastomeru dielektrycznego na ramce. W ten sposób uzyskana membrana, rozciągając się i kurcząc zgodnie z doprowadzanym napięciem, będzie źródłem dźwięku. Może być lekkim, płaskim i tanim głośnikiem, w którym element drgający jednocześnie wymusza ruch i emituje dźwięk. Głośnik Charakterystyka Zastosowanie