Te pēhanga tino i roto i te Nature me Hangarau

Pēhanga - te nui o te ahupūngao, e whakaatu ana i te hononga uara tau o te tōpana mahi i runga i te mata motuhake kōwae whakaaetia. Kei te riro te reira e te aronga o tenei ope rite hāngai ki te wāhi mata. Ki te te pūnaha SI, i whakaae e te whenua Kihi nui, te kaha o te mea Newton ranei kaha manokaramu, me te rohe - henimita tapawha (mitamano, mita), whiwhi tatou:

P = F / S = N / cm2 = Pa

Pascal - Ko tetahi o nga momo o uara (whakamahia i roto i te engineering me ahupūngao) tenei. Ko te tikanga, kei te tohua te uara i MPa - megapascals. he pai hoki te whakaiti i te maha o ngā kore tenei. "Atmosphere" maha whakamahi i te wā i roto i te toi me te ora rā. pēhanga pūmau me te te whanaunga, e taea ana te ruri i roto i te "atmospheres" Pa, me ētahi atu wae.

I roto i te mahi, ko ano hoki te wā "huru" he torutoru ngā ariā: paerewa, me te hangarau. Paerewa, whakaritea huru tinana ranei noa te rite "atm" (ata) me te uara paerewa - 101325 Pa, e te tikanga HG pēhanga i te taumata moana, me i te pāmahana o te 0 degrees. Ka taea hoki te kitea e koe te faaiteraa 760 mm.rt.s. (MmHg). kahore ki te mahi ki te pēhanga pūmau wā rite te mea he whakamāramatanga rerekē, me te wae "AT" (Ati) huru Hangarau kua. Ko nga āhua whakamāramatanga: "tōpana mahi perpendicularly i runga i te taimaha (1 kg) ki te whakaterenga tō (1g) kaupae ia rohe wae (1 cm2)."

He etahi hoki:

pēhanga pūmau - te pēhanga whanaunga whanganga ki tino kore - korehau (ata).

Ko te pēhanga whanaunga - te pēhanga whanganga whanaunga ki te huru paerewa (atm).

pēhanga nui - ka taea e rua e whanaunga, kia he rerekētanga (psig) ranei.

Tino maha tawhiti he ariā tino, me te pēhanga e rite te momo e rua anake. I roto i te meka, he rerekētanga nui i roto i te i te taikaha me te kore e whai i te pēhanga whanaunga. Ko atu hohoko o te kupu e te hunga ake taunga ki te whakamahi i ngā tohunga o te ahumahi ngā tenei.

Kia tatou ka hoki ki te ariā o te pēhanga pūmau. Ka rite ki kua whakahuatia, ko reira he tohu tūturu, arā whanganga i te kore tinana. Ko te rite ki te tauine i runga i te raina - ine koe i te 0 me te nui e hiahia ana koe. I roto i te natura, te uaua whakamahia tenei ariā i roto i te tātai, mai "moana" tonu kua reira ko etahi pēhanga. Na reira, ko te reira watea atu ki te ine i a ia. Hei tauira, te pēhanga tupare o koutou motokā ki te ariki teihana ratonga parau koutou i roto i te kōhauhau (mō ngā waka e pā ana ki 2.2 atm). whai hoki ipurau te kōwae - te huru, engari hangarau. Ko tenei e tika ana ki te meka e ka whakamahi i rerekētanga faufaa.

Wehe, kua tuhia te reira e te pēhanga hau ki te tiketike, a te akoranga, rerekē. Te huri i te pēhanga tino, me te whanaunga conventionally ki nga kiromita. Ki te tautuhi i te reira e tango, ki pūkete nga āhuatanga o waho katoa: pāmahana, kiato, me te whakatere o te hinga noa. Ēnei raraunga mō ia teitei paerewa. E whakarāpopoto ratou i roto i te tepu o te tohatoha pēhanga ki runga ki nga wahi tiketike, ranei e taea te aroaro i roto i te puka o kauwhata. He pai i roto i te kaihoahoa matua o te waka rererangi (LA) tenei mōhiohio. Mai kua LA he whānuitanga mahi o altitudes i 0 ki te 12 km (pāhihi). Na, ka, kia hangaia ngā pūnaha katoa, mihini me engines mahi rererangi tango ki pūkete rerekē ngā āhuatanga taiao.

I roto i te ao te whakamahi i ngā uara rerekē, whanganga nei te rite nui, me te pēhanga tino. Te reira i katoa tei runga i te rohe matawhenua, me te tono. Kei raro te mekameka matua o nga wae pēhanga:

1 Pa = 9.87 * 10-6 atm. = 1.02 i. = 1,02 kg / cm2 = 10-5 pae = 1,45 * 10-4 PSI =

= 7,5 * 10-3 mm HG = 0,120 mm.vod.st

I taea te kite, ko te tino nui te whānuitanga wae pēhanga. Mai i tenei rārangi, te whenua Kihi, te tino auau Pa, atm., Al., Kg / cm2, mmHg

I roto i te tahi atu mea, te pēhanga hū me te katoa kitea i roto i te natura, me ngā tukanga. pēhanga pateko - he pēhanga whanganga nei e te rere inu mahi (i.e., tona pēhanga tūturu). Ko te katoa pēhanga (pēhanga o ngā tawhā braked) - ko te pēhanga whanganga tika i roto i te awa (i roto i braking te aroaro o te pūoko rere i.e.).

Pressure awe tangata ki te whānuitanga nui atu te pāmahana, mai te pāmahana o te tinana tangata kua he tetahi rahui, me te pēhanga - he iti rawa. Ko te aha e tino tairongo ki te huringa i roto i te pēhanga te iwi ruhiruhia, me te mate. No te mau opuaraa hangarau, he pēhanga whanganga whakaaro - gauges mō te hydrometeorological - barometers.