Thekuderedza ruzhacoefficient (inowanzo kunzi NRC) inhamba imwe chete yenhamba ye0.0-1.0, iyo inotsanangura avhareji yekunyudza ruzha kuita kwechinhu.Thekuderedza ruzhacoefficient ndiyo avhareji yeSabine inotorwa inzwi coefficient yakayerwa pa250, 500, 1000, uye 2000 Hz.

Kukosha kwe0.0 kunoreva kuti chinhu chacho hachidzikisiri pakati pe-frequency ruzha, asi chinoratidza simba rinonzwika.Izvi zvinonyanya kufunga kupfuura zvinogoneka mumuviri: kunyangwe akakora kongiri madziro anozodzikisa ruzha, uye iyokuderedza ruzhacoefficient inogona kuva 0.05.

Kusiyana neizvi, mutsindo wekudzikisa ruzha we1.0 unoreva kuti iyo acoustic surface area (mu sabin seyuniti) inopiwa nechinhu ichi yakaenzana neayo epaviri-dimensional nzvimbo.Iri giredhi chinhu chakajairika kune gobvu porous-inokweva zvinhu (senge 2-inch gobvu jira-yakaputirwa fiberglass panel).Ichi chinyorwa chinogona kuwana kudzikisa ruzha kukosha kweiyo yakakura kupfuura 1.00.Uku kukanganisa mumaitiro ekuyedza, uye iganhuriro yetsanangudzo yeacoustician yeskweya unit pane hunhu hwechinhu chacho.

Iyo inoderedza ruzha chinhu chinonyanya kushandiswa kuongorora iyo general acoustic performance yeacoustic ceilings, partitions, mabhena, hofisi skrini, uye acoustic madziro mapaneru.Dzimwe nguva inoshandiswa kuongorora kuvhara kwepasi.Zvisinei,kuderedza ruzhandizvo chetekuderedza ruzha, iyo inogona kunyatsoderedza kukanganiswa kweruzha pavanhu, asi haigoni kudzima zvachose ruzha.Zvichiri kudikanwa kuti uwane zvigadzirwa zveunyanzvi zvinotora inzwi.

Saka ndedzipi dzakakwirira dzeNRC dzinobata ruzha?Mineral fiber sirin board uye fiberglass board zvinhu zviri nani zvekutora ruzha uyekuderedza ruzha.Iyo nrc yemamineral fiber board inowanzoita 0.5, uye iyo nrc ye fiberglass board inogona kusvika 0.9-1.0.Taigona kuisa sirin'i zvinhu zvakakodzera maererano nemhoteredzo dzakasiyana.