He aha ka liʻiliʻi liʻiliʻi o ka pahu emulsifier?

1. Aia maʻamau ʻelua mau ʻano no ka ʻike ʻana i ke degere ʻaʻa, ʻo ka hoʻohana ʻana i ke kaomi piha (ʻo ia hoʻi: ʻike ʻia ke degere ʻole ʻole) e ʻike ai, a ʻo ka hoʻohana ʻana i ke kaomi pili (ʻo ia: ke degere kaʻawale pili) e ʻike ai.
2. ʻO ka mea i kapa ʻia ʻo "paʻi piha" ʻo ia hoʻi ka pili ʻana o ka ʻumeke i ka pahu ʻike. Ma hope o ka manawa kūpono o ka hoʻomau mau ʻana, ʻaʻole e hoʻomau ke kaomi i loko o ka pahu e hāʻule a mālama i kekahi waiwai. I kēia manawa, ʻo ka waiwai paʻi kinoea i loko o ka pahu ka waiwai piha o ka pamu. kaomi. Inā ʻaʻohe kinoea i loko o ka pahu, a laila ʻaʻole ke kaomi piha ʻana, ʻo ia ka mokuʻāina ʻo theoretical. I ka hoʻomaʻamaʻa ʻana, ʻo ke kaomi piha ʻana o ka pauma ma waena o 0 a me 101.325KPa. Pono e ana ʻia ka waiwai paʻi paʻa me kahi mea hana paʻa paʻa. Ma 20°C a me ke kiʻekiʻe = 0, ʻo 101.325KPa ka waiwai mua o ka mea kani. I ka pōkole, ua kapa ʻia ke kaomi ea me ka "theoretical vacuum" ma ke ʻano he kuhikuhi: "paʻi piha" a i ʻole "vacuum piha".
3. ʻO ka "relative vacuum" e pili ana i ka ʻokoʻa ma waena o ke kaomi o ka mea i ana ʻia a me ke kaomi lewa o ke kahua ana. Ana ʻia me kahi anana maʻamau. I ka loaʻa ʻole o ka momi, ʻo ka waiwai mua o ka papa ʻaina he 0. I ke ana ʻana i ka ʻūhā, aia kona waiwai ma waena o 0 a me -101.325KPa (i hōʻike pinepine ʻia ma ke ʻano he helu ʻino). No ka laʻana, inā he -30KPa ka waiwai ana, ʻo ia hoʻi, hiki ke hoʻokuʻu ʻia ka pamu i kahi mokuʻāina ʻo 30KPa haʻahaʻa ma mua o ke kaomi lewa ma ke kahua ana. Ke ana ʻia ka pauma hoʻokahi ma nā wahi like ʻole, ʻokoʻa paha ka waiwai o ke kaomi pili, no ka mea, ʻokoʻa ke kaomi o ka lewa o nā wahi ana like ʻole, i kumu ʻia e nā kūlana pahuhopu like ʻole e like me ke kiʻekiʻe a me ka mahana ma nā wahi like ʻole. I ka pōkole, ʻike ʻia ke kaomi ea me ka "measurement atmospheric pressure" ma ke ʻano he kuhikuhi: "pilikia pili" a i ʻole "vacuum pili".
4. ʻO ke ala maʻamau a me ka ʻepekema ʻoi loa i ka ʻoihana vacuum honua ʻo ia ka hoʻohana ʻana i ka hōʻailona kaomi piha; Hoʻohana nui ʻia ia ma muli o ke ʻano maʻalahi o ke ana ʻana i ka vacuum pili, nā mea ana maʻamau, maʻalahi ke kūʻai a me ke kumu kūʻai. ʻOiaʻiʻo, hiki ke hoʻololi ʻia nā mea ʻelua. Penei ke ʻano o ka hoʻololi ʻana: kaomi piha = kaomi ea ma ke kahua ana - waiwai piha o ka pili pili.