1. Ngokuqhelekileyo kukho iindlela ezimbini zokuchongwa kweqondo le-vacuum, enye kukusebenzisa uxinzelelo olupheleleyo (oko kukuthi: i-degree ye-vacuum epheleleyo) ukuchonga, kwaye enye kukusebenzisa uxinzelelo oluhambelanayo (oko kukuthi: i-degree vacuum degree) ukuchonga.
2. Okubizwa ngokuba "uxinzelelo olupheleleyo" kuthetha ukuba ipompo ye-vacuum ixhunyiwe kwisitya sokubona. Emva kwexesha elaneleyo lokupompa ngokuqhubekayo, uxinzelelo kwisitya aluqhubeki ukuhla kwaye lugcina ixabiso elithile. Ngeli xesha, ixabiso loxinzelelo lwegesi kwisitya lixabiso elipheleleyo lempompo. uxinzelelo. Ukuba akukho rhasi kwaphela kwisikhongozeli, ngoko ke uxinzelelo olupheleleyo luyi-zero, oluyimeko ye-vacuum yethiyori. Enyanisweni, uxinzelelo olupheleleyo lwempompo yokucoca luphakathi kwe-0 kunye ne-101.325KPa. Ixabiso elipheleleyo loxinzelelo kufuneka lilinganiswe ngesixhobo soxinzelelo olupheleleyo. Kwi-20 ° C kunye nokuphakama = 0, ixabiso lokuqala lesixhobo yi-101.325KPa. Ngamafutshane, uxinzelelo lomoya oluchongiweyo "nge-vacuum yethiyori" njengesalathiso kuthiwa: "uxinzelelo olupheleleyo" okanye "i-absolute vacuum".
3. "I-vacuum ehambelanayo" ibhekisela kumahluko phakathi koxinzelelo lwento elinganisiweyo kunye noxinzelelo lwe-atmospheric yendawo yokulinganisa. Ilinganisa ngegeyiji yokufunxa eqhelekileyo. Ngokungabikho kwe-vacuum, ixabiso lokuqala letheyibhile ngu-0. Xa ulinganisa i-vacuum, ixabiso layo liphakathi kwe-0 kunye ne-101.325KPa (edla ngokuchazwa njengenombolo engafanelekanga). Umzekelo, ukuba ixabiso lokulinganisa ngu-30KPa, kuthetha ukuba impompo inokumpontshelwa kwisimo se-vacuum eyi-30KPa ephantsi kunoxinzelelo lwe-atmospheric kwindawo yokulinganisa. Xa impompo efanayo ilinganiswa kwiindawo ezahlukeneyo, ixabiso layo loxinzelelo oluhambelanayo linokuthi lihluke, kuba uxinzelelo lwe-atmospheric lweendawo ezahlukeneyo zokulinganisa luhluke, olubangelwa iimeko ezahlukeneyo zenjongo ezifana nokuphakama kunye nokushisa kwiindawo ezahlukeneyo. Ngamafutshane, uxinzelelo lomoya oluchongiweyo "nomlinganiselo wendawo yoxinzelelo lwe-atmospheric" njengesalathiso kuthiwa: "uxinzelelo olunxulumeneyo" okanye "i-vacuum ehambelanayo".
4. Eyona ndlela ixhaphakileyo neyeyona yenzululwazi kushishino lwehlabathi lwevacuum kukusebenzisa uphawu loxinzelelo olupheleleyo; Ikwasetyenziswa ngokubanzi ngenxa yendlela elula yokulinganisa ivacuum, izixhobo zokulinganisa eziqhelekileyo, kulula ukuzithenga kunye nexabiso eliphantsi. Ngokuqinisekileyo, ezi zimbini ziyatshintshana ngokwethiyori. Indlela yokuguqula ngolu hlobo lulandelayo: uxinzelelo olupheleleyo = uxinzelelo lomoya kwindawo yokulinganisa - ixabiso elipheleleyo loxinzelelo olunxulumene.
Ixesha lokuposa: May-27-2022