隔聲指數 的英文怎麼說
中文拼音 [géshēngzhǐshǔ]
隔聲指數
英文
sound insulation index-
Abstract : the colored sandwich steel plate has been successfully used in the noise control at the cooler center in the paint shop of dcac wuhan factory, expressed with laudness index, noise level is reduced 79. 65 % after control. the effect is very excellent
文摘:在噪聲治理中,採用彩色夾心板作隔聲構件,在武漢總廠塗裝分廠製冷站應用成功,用響度指數這個絕對數表示,治理前後噪聲總響度降低79 . 65 % ,隔聲效果非常好,達到了預期的目的。And the supply scheduling design protects the mmic chips. the final measurement result shows the transmitter power reaches more than 500mw, noise figure is less than 6db, the receive gain is higher than 25db, the isolation is more than 40db
實驗結果顯示發射通路輸出功率> 500mw 、噪聲系數< 6db 、接收通路增益> 25db 、和差發射通路的隔離度> 40db ,收發隔離度> 40db ,基本達到指標要求。
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