Mayar da bar zuwa Pa bar ↔ pascal Kyauta A kan layi Amintacce
Ku rubuta ƙima a bar ku karanta ta a pascal nan take. Ma'aunin daidai ne bisa ayyanawa, lissafin yana faruwa a cikin burauzarku, kuma ba a aika komai ko'ina ba.
Ba a ɗora komai ba
Ƙimomin da aka fi amfani da su — Mayar da bar zuwa Pa (bar ↔ pascal)
| bar | Pa |
|---|---|
| 1 | 100000 |
| 2 | 200000 |
| 3 | 300000 |
| 5 | 500000 |
| 10 | 1000000 |
| 20 | 2000000 |
| 50 | 5000000 |
| 100 | 10000000 |
Daga ina waɗannan ma'aunai suka fito
Matsi (pressure) ƙarfi ne da aka watsa a kan wani fili, kuma ma'aunin SI yana faɗin haka a sarari: pascal shi ne newton ɗaya a kan murabba'in mita ɗaya. Adadi ne ƙanƙani sosai — iskar da ke kewaye da mu tana matsa mana da kusan 101,325 daga cikinsu — don haka aikin yau da kullum yana amfani da yawansu. Masanin yanayi Vilhelm Bjerknes ne ya ƙirƙiri bar a shekarun 1900 a matsayin pascal 100,000 zagaye, kusa da matsin iskar matakin teku ta yadda ya zama ma'auni mai sauƙi, kuma ya dore a hasashen yanayi, a nutsewa cikin ruwa da kuma a ma'aunin tayoyi a ko'ina cikin Turai. Pound a kowane murabba'in inci kuwa ta zo ta wata hanya daban, kai tsaye daga pound da inci, kuma har yanzu tana mulki a masana'antun Amurka da gidajen mai.
Inda kuke haɗuwa da su
Tayoyi su ne wurin da mafi yawan mutane suke haɗuwa da matsi, ana faɗin sa da bar a Turai da psi a Amurka da Birtaniya. Bayan haka: taswirar yanayi da hectopascal, wanda lamba ɗaya ce da millibar; tukunyar tururi (boiler), hydraulics da matsattsen iska da bar; kwalayen iskar gas, bututun roba da gwajin injuna da psi; aikin vacuum kuma da pascal, inda ƙaramin ma'aunin ya zama daidai girma a ƙarshe.
Tambayoyin da mutane ke yi
Yaya bar yake da alaƙa da matsin yanayi?
Bar daidai pascal 100,000 ne, wanda ya kusa da matsin yanayi amma bai yi daidai da shi ba: matsin yanayi na yau da kullum shi ne bar 1.01325. A ƙarƙashin ruwa, matsi yana ƙaruwa da kusan bar ɗaya a kowane zurfin mita goma, don haka mai nutsewa a mita 30 yana jin kusan bar huɗu gabaɗaya, har da iskar da ke sama.
Shin hectopascal ɗaya ce da millibar?
Ɗaya ce daidai, shi ya sa hasashen yanayi ya sauya tsakaninsu ba tare da kowa ya lura ba. Bar pascal 100,000 ne, don haka millibar pascal 100 ce, haka kuma hectopascal pascal 100 ce. Matsin matakin teku na yau da kullum shi ne 1013.25 a kowanne. Ilimin yanayi ya koma amfani da hectopascal don ya zauna cikin SI, yana barin sanannun lambobi yadda suke.
Shin amsar daidai ce?
Inda aka ayyana ma'aunai biyun ta hanyar juna da cikakkun lambobi, i — shafin yana faɗin haka a saman lambar, kuma zagaye kawai shi ne yawan lambobin da ake nunawa. Inda rabon ba shi da lambar goma mai ƙarewa, shafin yana nuna muhimman lambobi goma sha biyu kuma yana cewa alaƙar kintace ce maimakon ya yi kamar ba haka ba ne.
Shin wani abu da na rubuta yana barin na'urata?
A'a. Ana yin lissafin a cikin burauzarku; ba a ɗora komai ba, kuma babu uwar garke da za a ɗora zuwa gare ta. Ku buɗe shafin sau ɗaya zai ci gaba da aiki ko da an kashe hanyar sadarwa.
Bar zuwa pascal a ƙirar injiniya: ƙarfi, matsin kayan aiki da iyakokin aminci
A cikin bita, ana karanta matsi da bar. A ofishin ƙira, kowace dabara da ke haɗa matsi da ƙarfi, da matsin bangon wani abu ko ƙarfin hydraulic an rubuta ta da pascal, newton da mita murabba'i. Mai ƙira da ya saka bar a cikin irin wannan dabara zai sami amsoshi da suka yi kuskure da ninki 100,000, kuma kuskuren ba koyaushe yake bayyana ba. Don canza bar zuwa Pa, ninka da 100,000: bar 1 shi ne Pa 100,000, bar 2.2 shi ne Pa 220,000 kuma bar 200 shi ne Pa 20,000,000, ko MPa 20. Na'urar lissafi da ke sama tana ninkawa yayin da kake rubutawa, kuma sassan da ke ƙasa suna nuna canzawar tana aiki a binciken ƙira na gama gari.
Shafin yana ba da ƙa'ida da misalai da aka aiwatar, bayanin kowace naúra, kwatance da dogon jerin yanayin ƙira, sannan kura-kurai na yau da kullum. Lissafin yana gudana a burauzarka kuma ba a aika komai da ka rubuta ko'ina ba. Ga ayyuka na gaske, bi ƙa'idojin da ke aiki da shawarar ƙwararren injiniya.
Yadda ake canza bar zuwa Pa: ninka da 100,000
Lissafin
An ayyana bar daidai a matsayin pascal 100,000. Don canza bar zuwa Pa, ɗauki matsi a bar ka ninka da 100,000: bar 0.5 yana ba da Pa 50,000, bar 3 yana ba da Pa 300,000, bar 16 yana ba da Pa 1,600,000 kuma bar 350 yana ba da Pa 35,000,000. Don komawa, raba pascal da 100,000.
Misalai da aka aiwatar
Matsin yanayi na bar 1.01325 shi ne Pa 101,325. Taya a bar 2.4 tana a Pa 240,000. Da'irar hydraulic a bar 250 tana aiki a MPa 25, kuma bututun iskar gas na gida a bar 0.02 yana ɗauke da Pa 2,000.
Ma'auni daidai
Tun da an ayyana bar ta pascal, babu zagaye. Gabuna suna rage rubutu: bar 1 shi ne kPa 100, bar 10 shi ne MPa 1 kuma bar 1,000 shi ne MPa 100.
Gwajin hankali cikin sauri
Sakamakon da pascal yana da lambobi biyar fiye da adadin bar. Idan lissafin “canza bar zuwa Pa” ya ba da lamba ƙasa da wadda ka fara da ita, ka raba maimakon ninkawa.
Bar
Naúrar da ke kan ma'auni
Bar ita ce naúra a kan manometers na bita, ma'aunin taya, boilers da compressors. Tana daidai da pascal 100,000 kuma tana kusa sosai da matsin yanayi na yau da kullum, bar 1.013.
Inda take bayyana
Ma'auni, lakabi, takardun bayanai da ƙa'idojin aikin famfo da hydraulic.
Pascal
Naúrar da ke cikin dabaru
Pascal ita ce naúrar SI ta matsi, newton ɗaya a kowace mita murabba'i. Dabarun da ke haɗa matsi da ƙarfi, kuzari ko matsin kayan aiki an rubuta su da pascal, wanda ke sa su ba su da ƙarin ma'auni.
Inda take bayyana
Rubutun kimiyyar lissafi, lissafin ƙira, ƙa'idojin kayan aiki da rahotannin gwaji.
Bar da pascal
Bar ɗaya shi ne pascal 100,000, don haka adadin da pascal yana da ƙarin matakai biyar na girma. Matsi na bar 6 shi ne Pa 600,000, ko MPa 0.6. Bar tana da sauƙin karantawa kuma pascal tana da sauƙin lissafi da ita.
Canzawar daidai ce, ba tare da zagaye na ɓoye ba. Babban tarko shi ne adadin sifiloli: ɗaya fiye ko ƙasa yana canza sakamakon sau goma.
Inda canzawar ke bayyana
Ƙarfi a kan piston
Ƙarfi daidai yake da matsi sau fili. Silinda na pneumatic mai piston na cm² 50, m² 0.005, a bar 6, Pa 600,000, yana ba da 600,000 × 0.005 = N 3,000. Idan ba a canza bar zuwa pascal ba da fili zuwa mita murabba'i ba, sakamakon yana kuskure da matakai da yawa na girma. Lissafin “canza bar zuwa Pa” koyaushe shi ne matakin farko.
Matsi a bangon tanki
Matsin bangon siriri na tankin silinda shi ne σ = p × r / t. Don bar 10, Pa 1,000,000, radius na m 0.5 da bango na mm 8, matsin shi ne MPa 62.5. Ƙarfen gini yana ba da hanya a MPa 235, don haka ma'aunin aminci shi ne 3.8.
Matsewar hydraulic
Matsewa a bar 350, MPa 35, tana aiki a kan piston na m² 0.1, tana ba da MN 3.5, kusan tan-ƙarfi 357. Pascal da mita murabba'i suna ba da newton kai tsaye.
Tsayin ruwa na hydrostatic
Matsi a zurfin h shi ne ρgh. Ga ruwa wannan shi ne Pa 9,810 a kowace mita. Karatun ma'auni na bar 4, Pa 400,000, yayi daidai da ginshiƙin ruwa na mita 40.8. Masu aikin famfo suna magana game da tsayi a mita na ruwa, masana kimiyyar lissafi game da matsi a pascal.
Vacuum na fasaha
Famfo na vacuum na dakin gwaje-gwaje yana kaiwa bar 10⁻⁵, Pa 1, kuma tsarin high-vacuum bar 10⁻⁹, Pa 10⁻⁴. Ga irin waɗannan ƙimomi ana amfani da pascal, domin bar zai buƙaci sifiloli da yawa bayan alamar ɗigo.
Matsi mai ƙarfi a megapascal
Diesel mai common-rail yana allura a bar 2,000, MPa 200. Jirgin ruwa na yanke ƙarfe yana kaiwa bar 4,000, MPa 400. Ƙasan teku a km 11 yana ɗauke da bar 1,100, MPa 110. Megapascal ita ce gabar da ta dace ga waɗannan ƙimomi.
Bututu
Ga bututu mai radius na mm 50, bango na mm 3 da bar 16, wato MPa 1.6, matsin bango shi ne 1.6 × 10⁶ × 0.05 / 0.003 = MPa 26.7. Ƙarfe na gama gari yana jure kusan ninki tara na haka. Binciken yana buƙatar pascal, ba bar ba.
Compressors
Compressor mai karatun ma'auni na bar 8, Pa 800,000 gauge, yana ba da bar 9 cikakke, Pa 900,000. Ma'aunin matsewa a kan shigar bar 1 saboda haka shi ne 9. Lissafin ƙarfi yana amfani da cikakkun ƙimomi, a pascal.
Matsin ma'auni da cikakken matsi
Ma'auni yana nuna matsi dangane da yanayi. Lissafin iskar gas yana buƙatar cikakken matsi, wanda ya fi Pa 101,325. Ma'auni na bar 2.2 yana nufin Pa 220,000 gauge da Pa 321,325 cikakke. Dokar iskar gas tana amfani da na biyu.
Gajeriyar hanyar kai
Don canza bar zuwa Pa a kai, ƙara sifiloli biyar. Bar 2.5 ta zama Pa 250,000, bar 0.8 ta zama Pa 80,000 kuma bar 15 ta zama Pa 1,500,000. Idan lambar tana da ɗigo, matsar da alamar ɗigon wurare biyar zuwa dama.
Dabarun spreadsheet
Don canza bar zuwa Pa a spreadsheet, saka matsi a bar a ginshiƙi A ka rubuta =A2*100000 a ginshiƙi B. Ginshiƙi na uku mai =B2*area yana ba da ƙarfi a newton. Idan fili yana cikin cm², raba shi da 10,000 tukuna, don naúrori su yi daidai.
Zagaye da daidaito
Lissafin “canza bar zuwa Pa” ba ya kawo kuskuren zagaye, amma sakamakon ba zai fi ma'auni daidaito ba. Kayan aiki na aji 1.6 yana da kuskure na kashi 1.6 na kewayonsa: a ma'auni na bar 10 wannan shi ne ±0.16 bar, ±Pa 16,000.
Alamomin da za a haddace
Bar 0.001 shi ne Pa 100. Bar 0.01 shi ne Pa 1,000. Bar 0.1 shi ne Pa 10,000. Bar 1 shi ne Pa 100,000. Bar 10 shi ne Pa 1,000,000. Bar 100 shi ne Pa 10,000,000. Yi amfani da su don canza bar zuwa Pa da ido.
Tsanin tunani
Bar 0.005 shi ne Pa 500. Bar 0.05 shi ne Pa 5,000. Bar 0.5 shi ne Pa 50,000. Bar 1.5 shi ne Pa 150,000. Bar 3 shi ne Pa 300,000. Bar 8 shi ne Pa 800,000. Bar 20 shi ne Pa 2,000,000. Bar 350 shi ne Pa 35,000,000. Tsani irin wannan yana saurin duk wani binciken canza bar zuwa Pa.
Matsin gwaji
Ana gwada tsarin matsi a sau 1.5 na matsinsu na ƙima. Ga PN 16, wato bar 16 ko MPa 1.6, gwajin yana a bar 24, MPa 2.4. Idan ma'aunin gwajin yana karatu a bar kuma ƙayyadaddun bayanai a MPa, daidaitaccen canzawa yana guje wa gwaji a matakin da bai dace ba.
Dubawa ta juyawa
Don duba sakamakon lissafin “canza bar zuwa Pa”, raba amsar da 100,000. Idan bar 2.2 ta zama Pa 220,000, to 220,000 da aka raba da 100,000 yana mayar da 2.2. Gwaji na biyu shi ne girma: adadin pascal yana da lambobi biyar fiye.
Tsofaffin naúrori
Tsofaffin ma'auni suna nuna kgf/cm², wanda kusan daidai yake da bar: 1 kgf/cm² shi ne Pa 98,066. Sauran naúrori sune yanayi na fasaha da torr. Canzawa ta pascal lafiya ce ga duka.
Misali da aka aiwatar
Silinda na hydraulic mai diamita na piston na mm 80 yana aiki a bar 160. Filin shi ne π × 0.04² = m² 0.005. Matsi shi ne Pa 16,000,000. Ƙarfi shi ne 16,000,000 × 0.005 = N 80,400, ko kN 80, kusan tan-ƙarfi 8.2. Sakamakon yana fitowa a newton kai tsaye.
Famfo da tsayin ruwa
Famfo da ke ba da bar 5, Pa 500,000, zai iya ɗaga ruwa mita 51. Masana'antu wani lokaci suna ba da tsayi a mita wani lokaci kuma matsi a bar. Alaƙar ita ce Pa 9,810 a kowace mita.
Gudu da matsi
Ƙarfin hydraulic shi ne matsi sau gudu. Famfo a bar 200, MPa 20, mai gudun lita 30 a minti, m³/s 0.0005, yana ba da kW 10. Dabarar tana buƙatar pascal da mita masu kubik a daƙiƙa, wanda ke sa canzawar ta zama wajibi.
Matsin taɓawa
Taya ta mota a Pa 220,000 tana ɗaukar kusan kilogiram 340 a kan wurin taɓawa na cm² 150. Mutum mai kilogiram 70 a kan tafin ƙafa na cm² 200 yana matsawa da kusan Pa 34,000, bar 0.34, kuma siriri takalmi mai tudu zai iya wuce MPa 1.
Matsi a gine-gine
Samar da ruwa na dogon gini yana a bar 4, Pa 400,000, kuma da'irar dumama a bar 1.5, Pa 150,000. Iskar gas ta gida tana a bar 0.02, Pa 2,000. Ana duba kowace da'ira a naúrar da ƙa'idarta ke amfani da ita.
Kwalabe na roba
Kwalbar roba ta abin sha mai kumfa tana jure bar 8 zuwa 10, MPa 0.8 zuwa 1.0, kafin ta fashe. Matsi na yau da kullum saboda haka yana cikin dubban daruruwan pascal, ba ɗaiɗai ba.
Gabuna na kimiyyar lissafi mai amfani
A kimiyyar lissafi mai amfani MPa da GPa su ne gabuna na gama gari. Ma'aunin sassauci na ƙarfe shi ne GPa 210, bar 2,100,000. Matsi a tsakiyar Duniya yana wuce GPa 300, bar miliyan 3.
Jiragen ruwa
Na'urar wanki a bar 150, MPa 15, tana fitar da ruwa a gudun ka'ida na √(2p/ρ) = √(2 × 15,000,000 / 1,000) = m/s 173, km/h 623. A aikace asara tana rage shi, amma girman ma'aunin yana nuna yadda jirgin ruwan yake da ƙarfi.
Azuzuwan matsin ƙima
Lakabin PN 6, PN 10, PN 16 da PN 25 suna ba da matsin ƙima a bar, MPa 0.6, 1.0, 1.6 da 2.5. Teburan ƙarfin kayan aiki suna a MPa, don haka ana canzawa daga bar zuwa pascal a duk lokacin da ake duba mahaɗi.
Murfin tukunyar matsi
A matsin da ya wuce na bar 1, Pa 100,000, murfi mai diamita na cm 20, fili m² 0.0314, ana tura shi sama da N 3,142, kusan kilogiram-ƙarfi 320. Shi ya sa tukunyar matsi suke da makullai na musamman da bawuloli na aminci.
Kofunan tsotsa
Kofin tsotsa na cm² 10, m² 0.001, a ƙarƙashin vacuum na bar 0.8, Pa 80,000, yana riƙewa da N 80, kusan kilogiram-ƙarfi 8. Kofuna na masana'antu don bangarorin gilashi suna amfani da ɗaruruwan santimita murabba'i da ma'aunin vacuum a bar.
Hanyoyi biyu zuwa sakamako ɗaya
Za ka iya tafiya daga bar zuwa pascal kai tsaye da 100,000, ko ta kPa: ninka da 100, sannan da 1,000. Idan sakamakon ba su yi daidai ba, an kwafi lamba ba daidai ba.
Auna bawul ɗin saki
Bawul ɗin saki yana fitarwa idan ƙarfin matsi a kan wurin zamansa ya wuce ƙarfin sinadarin spring. Ga wurin zama na cm² 2, m² 0.0002, wanda aka saita a bar 10, Pa 1,000,000, spring dole ya ba da N 200. Kundin bawul suna faɗin matsin saiti a bar, yayin da ƙirar spring ake yi a newton da pascal, don haka lissafin “canza bar zuwa Pa” yana tsakiyar binciken.
Murfin da aka ƙulle da kusoshi
Murfin dubawa mai diamita na cm 30, fili m² 0.0707, a kan tanki a bar 2, Pa 200,000, yana fuskantar ƙarfi na N 14,137. Ƙusoshi takwas suna raba wannan nauyi, kowanne yana ɗaukar kusan N 1,767, wanda ƙusa M10 na yau da kullum yake iya ɗauka cikin sauƙi. Lissafin yana nuna dalilin da ya sa murfi a tankunan matsi mai ƙarfi ke buƙatar ƙusoshi da yawa masu girma.
Kumfa da tashin hankalin fuska
Ƙarin matsin da ke cikin kumfar sabulu mai radius na cm 1 shi ne 4γ/r, wanda ga γ = 0.025 N/m shi ne Pa 10, bar 0.0001. A cikin digon ruwa mai radius na micrometre 1 yana kusan Pa 144,000, bar 1.44. Ƙananan matsi irin waɗannan na pascal ne a zahiri.
Bawulolin aminci
Bawul ɗin boiler na gida yana buɗewa a bar 3, Pa 300,000. A tankin da ke da m² 2 na bango, wannan matsi yana nufin jimillar ƙarfi na kN 600. Bawul ɗin yana iyakance shi zuwa ƙima mai aminci.
Kuzari a iskar gas da aka matse
Ɗaukacin matsi da girma yana da girman kuzari. Ga silinda na lita 12, m³ 0.012, a bar 200, MPa 20, pV shi ne kJ 240. Kuzarin da ake adanawa da gaske yana dogara da tsari, amma girman ma'aunin yana nuna dalilin da ya sa dole a kula da silinda.
Dokar iskar gas
Ma'aunin pV = nRT yana buƙatar matsi a pascal. Ga mole ɗaya na iskar gas a K 273.15 da Pa 101,325 girman shi ne lita 22.4. Saka matsi a bar, kamar 1.01325, zai ba da girma sau 100,000 da yawa. Daidaitaccen canza bar zuwa Pa yana guje wa kuskuren.
Matsin yanayi
Daidaitaccen matsin yanayi shi ne bar 1.01325, Pa 101,325, wanda ke nufin ƙarfi na N 101,325 a kan kowace mita murabba'i, kusan tan-ƙarfi 10.3. A mita 3,000 matsi yana bar 0.70, Pa 70,100. Altimeters suna dogara ne da alaƙar matsi da tsayi.
Yanayi a hectopascal
Hasashen yanayi yana ba da matsi a hectopascal: hPa 1,013 shi ne bar 1.013 ko Pa 101,300. Hectopascal ɗaya shi ne Pa 100 ko bar 0.001. Don tafiya daga bar zuwa hPa, ninka da 1,000. Matsi na bar 0.96 shi ne hPa 960, irin na zurfin ƙaramin matsi.
Matsin sauti
Hayaniyar titi tana da matsin sauti na kusan Pa 0.2 kuma kide-kiden dutse Pa 20. A bar waɗannan su ne 2 × 10⁻⁶ da 2 × 10⁻⁴. Shi ya sa ake auna sauti a pascal ko decibel, ba a bar ba: sauye-sauyen ƙanana ne idan aka kwatanta da matsin yanayi.
Ƙarin ƙimomi don canza bar zuwa Pa
Dogon jerin canje-canje
Idan ƙimar da kake buƙata ba ta cikin jerin farko ba, waɗannan ƙarin canje-canje na iya kusanta isa a karanta kai tsaye:
- bar 0.1 = Pa 10,000
- bar 0.5 = Pa 50,000
- bar 3 = Pa 300,000
- bar 4 = Pa 400,000
- bar 7 = Pa 700,000
- bar 15 = Pa 1,500,000
- bar 20 = Pa 2,000,000
- bar 75 = Pa 7,500,000
- bar 200 = Pa 20,000,000
- bar 500 = Pa 50,000,000
- bar 2,000 = Pa 200,000,000
- bar 10,000 = Pa 1,000,000,000
Kura-kuran gama gari da lissafin “canza bar zuwa Pa”
Raba da 100,000
Daga bar zuwa pascal lamba tana girma. Idan bar 2.2 ta zama 0.000022, ka raba maimakon ninkawa.
Fili a cm²
Da pascal, dole fili ya zama a mita murabba'i. cm² 50 shi ne m² 0.005. Naúrori da aka gauraya suna ba da kurakurai na sau 10,000.
Haɗa bar da hPa
Bar tana da hPa 1,000, ba 100 ba. Matsi na bar 1.013 shi ne hPa 1,013.
Tambayoyi a taƙaice
Menene dabarar canza bar zuwa Pa?
Pascal daidai yake da bar sau 100,000.
Menene bar 1 a pascal?
Daidai Pa 100,000.
Menene bar 2.2 a pascal?
Pa 220,000.
Menene Pa 101,325 a bar?
Bar 1.01325.
Ana ɗora lambata?
A'a, ana lissafa komai a burauzarka.
Shafuka masu alaƙa da taƙaitawa
Kana iya son Canza bar zuwa psi, Canza km zuwa mi, Canza mi zuwa km, Canza °C zuwa °F, Canza °F zuwa °C, Canza knots zuwa mph, Canza cm zuwa mm, Canza Mach zuwa mph, Canza nmi zuwa km. Don akasin haka, duba Canza Pa zuwa bar.
A taƙaice: bar tana zama pascal idan aka ninka da 100,000, kuma naúrar tana tafiya kusa da amsar. Komai yana nan a burauzarka, ba tare da asusu ko ɗorawa ba.