Makhe sibone ukuba yintoni na uxinzelelo elilinganisiweyo

Kubomi thina badla ngokujongana neemeko apho kukho imfuneko umlinganiselo uxinzelelo: igazi, womoya okanye umoya okanye igesi kwi ityhubhu. Makhe sibone ukuba uhlobo nobungakanani emzimbeni. Kwaye kwangoko ke nanku umbuzo: Yintoni Walinganisa xi? Kubonakala ukuba kukho iintlobo ezininzi iiyunithi isicelo kule nobuninzi emzimbeni. Kweli nqaku, siza kuhlolisisa into xi elilinganisiweyo. Ngoko ke, makhe sihlolisise nganye kwezi yunithi.

inkqubo ngokusemthethweni eyaziwayo unit International SI i yokulinganisa uxinzelelo Pascal (Pa) eyenziwa kulo - kilopascals (kPa) kunye megapascals (MPA). Enye Pascal lo ngokunxulumene ilandelayo: 1 Pa = 1 N / m ^2. Noko ke, kumacandelo ahlukeneyo zisebenzisa ahlukeneyo iiyunithi kuxinzelelo. Ngokomzekelo, xa kujongwa ukusebenza kunye negesi ukuhamba komoya zixinaniswe (a isiguquli kwimizobo) ingasetyenziswa iiyunithi ezininzi ezahlukeneyo ngokupheleleyo.

Makhe sihlolisise oko kulinganiswa uxinzelelo igesi kunye nomoya. I-unit main lisetyenziswa cubic metre ngomzuzu kwexesha (m ³ / min). Kuyinto rhoqo ukudibana kunye neeyunithi ezifana eelitha (l / min) womoya (ATM) umzuzu okanye, kwaye kumazwe IsiNgesi abathetha Ungasebenzisa iinyawo cubic ngomzuzu - cubic perminute unyawo, okanye CFM. Makhe sijonge ubudlelwane phakathi kwezi variables. 1 l / min ingqamana 0.001 m ³ / min kunye 1 CFM ilingana 28,3168 L / min, okanye 0,02832 m ³ / min. Ngako oko, 1 m ³ / min ilingana 35.314 CFM. Rhoqo kukhokelela intsebenzo sokufunxa okanye iimeko eziqhelekileyo (1 ATM kubushushu ka 200 Celsius). Kulo mzekelo, phambi kokuba unit abeke unobumba "n" oko kuthetha imeko eqhelekileyo. Umzekelo, 10 NM ³ / min.

Kwakhona kuba uxinzelelo yokulinganisa nga tirhisiwaka iiyunithi: mm HG. Art. (Torr) - aphindwe mercury; ATM. - umoya ngokomzimba; al. - umoya zobugcisa; bar. In IsiNgesi amazwe ukuthetha Ungasebenzisa ixabiso efana kweekhilogram-intshi square - PSI (neekhilogram-intshi square) .

Cinga umlinganiselo iiyunithi eziphambili uxinzelelo: 1 megapascal yi bar 10 okanye 7500,7 milimmetrov HG okanye 9,8692 umoya emzimbeni, 10,197 umoya yobugcisa 145,04 PSI.

Ngoko twisisa leswi xi lulinganiselwa kwiindawo ezahlukeneyo zobugcisa. Yaye yintoni na izixhobo wenza ukulinganisa izinto eziphathekayo?

Ezi ndlela zihlelwa ngokohlobo soxinzelelo kulinganiswa (umzekelo, womoya, kwemfuneko okanye inqabe, oko kukuthi, emoyeni), yaye, ke, lo mgaqo amanyathelo (elulwelo, inwebu, yombane, intwasahlobo kunye combined). The main iparameters okuluphawu isixhobo sokulinganisa uxinzelelo lomoya - a udidi ukuchaneka. Kukho iindlela ezininzi ezinjengezo. Apha isixhobo ezingundoqo asetyenziswa kakhulu kwi neSingqinisiso uxinzelelo lomoya:

• aneroid okhonza umlinganiselo womoya;
• barotermogigrometr kwakhona kusetyenziswa umlinganiselo womoya;
• manometers alulwelo - ukuba isetyenziswe kumlinganiselo umahluko uxinzelelo;
• analog yokulinganisa digital.

Ukushwankathela, sithi ukuba ulwazi iiyunithi lomlinganiselo ophezulu kuba luncedo kuye nawuphi na umntu mihla.