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integrating sphere in combination with a photometer, used to measure the total luminous flux emitted by a source, fotomõõturiga integreeritud kera, mida kasutatakse valgusallika tekitatud kogu valgusvoo mõõtmiseks
fotomeeterkera . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/fotomeeterkera/1/est (18.07.2026)