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Vpliv stopnje zamreženja na karakteristike kapacitivnega polimernega senzorja relativne vlažnosti zraka = The effect of the degree of cross-linking on the characteristics of a polymer capacitive-type sensorPožun, Karol ; Koller, Lidija ; Praček, BorutVpliv obsevanja polimera z UV-žarki na stekleni podlagi opazujemo po spremembi dielektrične konstante in drugih znanih karakteristik senzorja relativne vlažnosti zraka. Stopnja polimerizacije močno ... vpliva na občutljivost senzorja pri merjenju spremembe vlage v okolju. Občutljivost senzorja se lahko poveča do 95%, nad to vrednostjo pa njegova občutljivost hitro pade, kljub daljšemu času osvetlitve z UV žarki. To si razlagamo tako, da je količina absorbirane vodne pare odvisna od stopnje polimerizacije. Podoben vpliv povečanja absorpcije vodne pare iz zraka smo opazili pri senzorski strukturi, kjer smo kot zgornjo elektrodo naparili sendvič strukturo SiO-zlato-SiO. Poznano je, da se delež dielektrične obnove poveča s premiki nekaterih segmentov v glavni molekulski verigi in enako velja za premike v stranskih verigah. S povečanjem časa izpostavitve polimera UV-svetlobi postane polimer bolj trd, gibljivost segmentov v glavni molekulski verigi pa se počasi ustavi. Rezultat tega je zmanjšanje dielektričnih izgub.Source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 34, št. 5, sep.-okt. 2000, str. 311-315)Type of material - article, component partPublish date - 2000Language - slovenianCOBISS.SI-ID - 237738
Author
Požun, Karol |
Koller, Lidija |
Praček, Borut
Topics
polimeri |
zamreževanje |
relativna vlažnost |
senzorji
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source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 34, št. 5, sep.-okt. 2000, str. 311-315)
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Požun, Karol | 09619 |
Koller, Lidija | 01703 |
Praček, Borut | 09105 |
Source: Personal bibliographies
and: SICRIS
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