...For precise measurements, it is necessary to check the effects of viscosity, etc. For gases, there is a gas buoyancy balance (Figure 3) that determines the buoyancy acting on one arm of a balance in a sealed container from the pressure required to balance the balance. If the pressure at which the balance is balanced with a sample is P g and the pressure at which the balance is balanced with a standard gas is P s , then the specific gravity d g of the sample is d g = P s / P g . ... *Some of the terminology that refers to "gas buoyancy balance" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…精密な測定では,粘性の影響などを確認する必要がある。 気体用には,密閉容器中のてんびんの一方の腕のうきに働く浮力をてんびんを平衡させるための圧力から知るガス浮力てんびん(図3)がある。試料を入れててんびんが平衡したときの圧力をPg,標準ガスを入れて平衡したときの圧力をPsとすると,試料の比重dgはdg=Ps/Pgとなる。… ※「ガス浮力てんびん」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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