Ubwoko bwikwirakwiza

Kwiyoroshya kwimenyekanisha kwimashanyarazi

Nka sensor yumuvuduko ibisohoka nibimenyetso bisanzwe, imashini itanga igitutu nigikoresho cyemera ihinduka ryumuvuduko ukayihindura mubimenyetso bisanzwe bisohoka mukigereranyo.Irashobora guhindura ibipimo byumuvuduko wa gaze, amazi, nibindi byunvikana na sensor ya selile yumutwaro mubimenyetso byamashanyarazi bisanzwe (nka 4-20mADC, nibindi) kugirango itange ibikoresho bya kabiri nko kwerekana impuruza, ibyuma bifata amajwi, ibiyobora, nibindi. gupima no kwerekana Kandi kugenzura inzira.

Itondekanya ryimashanyarazi

Mubisanzwe imashini itanga igitutu tuvuga igabanijwe ukurikije ihame:
Umuvuduko ukabije wogukwirakwiza, imiyoboro yumuvuduko ukabije, imiyoboro yumuvuduko ukabije, imiyoboro ya semiconductor, hamwe na piezoelectric yumuvuduko wo gupima inshuro nyinshi.Muri byo, imiyoboro ikwirakwiza ningutu ikoreshwa cyane.Imiyoboro ya capacitifike itwara Rosemount ya 3051S yohereza ibicuruzwa bihanitse.

Imiyoboro y'amashanyarazi irashobora kugabanywamo ibyuma, ceramic, silikoni ikwirakwizwa, silikoni ya monocrystalline, safiro, firime isukuye, nibindi ukurikije ibice byoroshye.

• Umuyoboro w'icyuma ufite ibyuma bidahwitse, ariko ufite ubushyuhe buke, kandi birakwiriye ahantu hafite ubushyuhe bwagutse kandi busabwa neza.
• Ibyuma byerekana ingufu za ceramic bifite ubunyangamugayo bwiza, ariko bigira ingaruka kubushyuhe.Ububumbyi nabwo bufite inyungu zo kurwanya ingaruka no kurwanya ruswa, zishobora gukoreshwa mubisubizo.
• Umuvuduko ukabije wa silikoni ikwirakwizwa ni muremure cyane, kandi ubushyuhe bwo kugabanuka nabwo ni bunini, kubwibyo ubusanzwe indishyi zisabwa mbere yuko zikoreshwa.Byongeye kandi, na nyuma yindishyi zubushyuhe, umuvuduko uri hejuru ya 125 ° C ntushobora gupimwa.Nyamara, mubushyuhe bwicyumba, coefficente de sensibilité ya silicon ikwirakwijwe inshuro 5 zubukorikori, bityo rero ikoreshwa mubijyanye no gupima neza.
• Imashini imwe ya kirisiti ya silicon yoherejwe ni sensor yukuri mubikorwa byinganda.Nuburyo bugezweho bwa silicon ikwirakwizwa.Birumvikana ko igiciro nacyo cyazamuwe.Kugeza ubu, Yokogawa yo mu Buyapani niwe uhagarariye murwego rwa monocrystalline igitutu cya silicon.
• Umuyoboro wa safiro ntiwumva ihindagurika ryubushyuhe, kandi ufite imikorere myiza nubwo haba hari ubushyuhe bwinshi;safiro ifite imbaraga zikomeye zo kurwanya imirasire;nta pn drift;irashobora gukora mubisanzwe mubihe bibi byakazi kandi byizewe Imikorere yo hejuru, neza neza, ikosa rito cyane, hamwe nibikorwa rusange.
• Umuvuduko ukabije wa firime yerekana ibintu ntiwifata neza, kandi werekana igihe kirekire kandi gihamye kuruta icyuma gipima icyerekezo;ntabwo bigira ingaruka kubushyuhe: iyo ubushyuhe buhindutse 100 ℃, zero zero ni 0.5% gusa.Imikorere yubushyuhe bwayo iruta kure cyane ya diffuzion ya silicon sensor;mubyongeyeho, irashobora guhura nibitangazamakuru rusange byangiza.

Amahame yubwoko butandukanye bwikwirakwiza

• Ihame rya capacitive pressure transmitter.

Iyo igitutu gikora neza hejuru ya diafragma yo gupima, diafragma itanga ihinduka rito.Umuzenguruko-mwinshi kuri diaphragm yo gupima uhindura iyi deformasiyo ntoya mumurongo wa voltage cyane ugereranije numuvuduko kandi ugereranije na voltage ishimishije.Ikimenyetso, hanyuma ukoreshe chip yabugenewe kugirango uhindure iki kimenyetso cya voltage mubipimo nganda bya 4-20mA cyangwa ibimenyetso bya voltage 1-5V.

• Ihame ryo gukwirakwiza ingufu za silicon

Umuvuduko wikigereranyo cyapimwe ukora muburyo butaziguye kuri diafragma ya sensor (mubisanzwe diaphragm ya 316L), bigatuma diafragma itanga microclacement ijyanye nigitutu cyikigereranyo, ihindura agaciro ko kurwanya sensor, kandi ikabimenya hamwe na Inzira yumuzunguruko Ihinduka, hanyuma uhindure kandi usohokane ibimenyetso bisanzwe byo gupima bihuye niyi pression.

• Ihame rya monocrystalline silicon transmitter

Umuyoboro wa piezoresistive wubatswe ukoresheje ingaruka ya piezoresistive ya silicon imwe ya kirisiti.Wafer imwe rukumbi ya silicon wafer ikoreshwa nkibintu byoroshye.Iyo igitutu gihindutse, silikoni imwe ya kirisiti itanga imbaraga, kuburyo irwanya imbaraga zidakwirakwira kuri yo itanga impinduka ihuye nigitutu cyapimwe, hanyuma ibimenyetso bihuye na voltage iboneka mukuzunguruka ikiraro.

• Ihame rya ceramic transmitter

Umuvuduko ukora neza hejuru yimbere ya ceramic diaphragm, bitera ihinduka rito rya diafragma.Kurwanya firime yibyibushye byacapwe inyuma ya ceramic diaphragm hanyuma bigahuzwa nikiraro cya Wheatstone (ikiraro gifunze) kubera ingaruka za piezoresistive ya varistor, Ikiraro gitanga ibimenyetso byumurongo wa voltage cyane ugereranije nigitutu kandi bikagereranywa na voltage ishimishije. .Mubisanzwe bikoreshwa mugupima umuvuduko wa compressor de air, harakoreshwa ceramics nyinshi.

• Ihame ryimyitozo ngororamubiri

Ikoreshwa ryimyitozo ngororamubiri ikoreshwa cyane ni ibyuma birwanya ibyuma byifashishwa hamwe na semiconductor strain gauges.Ibyuma birwanya ibyuma ni ubwoko bwibikoresho byoroshye bihindura impinduka kumurongo wikizamini mukimenyetso cyamashanyarazi.Hariho ubwoko bubiri bwurugero rwicyuma hamwe nicyuma cya fayili.Mubisanzwe igipimo cyimiterere gifatanyirijwe hamwe na materique ya mashini binyuze mumashanyarazi yihariye.Iyo matrisa ihinduwe nimpungenge, igipimo cyo guhangana nacyo kirahinduka, kuburyo agaciro ko guhangana nigipimo cyimiterere ihinduka, kuburyo voltage ikoreshwa muburwanya ihinduka.Imashini itanga ingufu za gari ya moshi ni gake ku isoko.

• Umuyoboro wa safiro

Umuvuduko ukabije wa safiro ukoresha ihame ryakazi rirwanya imbaraga, ugahindura ibintu byoroshye-bya silicon-safiro, kandi bigahindura ibimenyetso byumuvuduko mubyuma byamashanyarazi bisanzwe binyuze mumuzunguruko wabigenewe.

• Gusohora amashanyarazi ya firime

Ikintu cyihuta cyumuvuduko ukabije gikozwe na tekinoroji ya elegitoroniki, ikora ikiraro gihamye kandi gihamye cya Wheatstone hejuru yubuso bwa diaphragm.Iyo umuvuduko wibikoresho byapimwe bikora kuri diaphragm ya elastike idafite ibyuma, ikiraro cya Wheatstone kurundi ruhande gitanga ibimenyetso byamashanyarazi bihuye nigitutu.Bitewe ningaruka nziza yo kurwanya, firime zikoreshejwe zikoreshwa mugihe hamwe ningaruka zumuvuduko ukabije, nkibikoresho bya hydraulic.

Guhitamo igitutu cyo guhitamo

• Itumanaho ryumuvuduko wurwego rwo guhitamo agaciro:

Banza umenye agaciro ntarengwa k'umuvuduko wapimwe muri sisitemu.Mubisanzwe, nukuvuga, ugomba guhitamo transmitter hamwe numuvuduko wikubye inshuro 1.5 kurenza agaciro ntarengwa, cyangwa ukareka umuvuduko usanzwe ukagwa kumuyoboro.1/3 ~ 2/3 byurwego rusanzwe nuburyo busanzwe.

• Ni ubuhe bwoko bw'igitutu:

Amazi meza hamwe nibyondo bizahagarika ibyambu.Uzashonga cyangwa ibintu byangirika bisenya ibikoresho muri transmitter bihura neza nibi bitangazamakuru.
Ibikoresho byumuvuduko rusange uhuza imiyoboro ni 316 ibyuma bitagira umwanda.Niba imiyoboro idashobora kwangirika kuri 316 ibyuma bidafite ingese, noneho mubyukuri ibyuma byose bikwirakwiza bikwiranye no gupima umuvuduko wikigereranyo;
Niba uburyo bwangirika kugeza 316 ibyuma bitagira umwanda, hagomba gukoreshwa kashe ya chimique, kandi hagomba gukoreshwa ibipimo bitaziguye.Niba umuyoboro wa capillary wuzuye amavuta ya silicone ukoreshwa mukuyobora igitutu, birashobora kubuza ko imiyoboro yangirika itangirika kandi ikongerera ubuzima bwumuvuduko.

• Ni kangahe utanga amakuru akeneye:

Ukuri kugenwa na: kutagira umurongo, hystereze, kudasubirwamo, ubushyuhe, igipimo cya zeru, n'ubushyuhe.Nibisobanuro byukuri, nigiciro kiri hejuru.Mubisanzwe, ubunyangamugayo bwikwirakwizwa rya silikoni ikwirakwizwa ni 0.5 cyangwa 0.25, kandi imiyoboro ya capacitif cyangwa monocrystalline itanga amashanyarazi ifite 0.1 cyangwa 0.075.

• Guhuza inzira yo kohereza:

Mubisanzwe, imashini itanga ingufu zishyirwa kumiyoboro cyangwa ibigega.Birumvikana, agace gato kabo gashizweho kandi gakoreshwa na metero zitemba.Mubisanzwe hariho uburyo butatu bwo kwishyiriraho imashini itanga igitutu: urudodo, flange, na clamp.Kubwibyo, mbere yo guhitamo igitutu cyohereza, inzira ihuza nayo igomba gutekerezwa.Niba ari urudodo, birakenewe kumenya umurongo wihariye.Kuri flanges, birakenewe ko dusuzuma flange ibisobanuro bya diameter nominal.

Inganda zikwirakwiza inganda

Ibihugu bigera kuri 40 ku isi byishora mu bushakashatsi no gukora ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma bifata ibyuma by бу byuma byera mu mahangaIbihugu bitatu hamwe hamwe birenga 50% byisoko rya sensor yisi.

Muri iki gihe, isoko yohereza ingufu mu gihugu cyanjye ni isoko ikuze ifite isoko ryinshi.Nyamara, umwanya wiganje ni ibihugu byamahanga bihagarariwe na Emerson, Yokogawa, Siemens, nibindi.

Ibi biterwa nuruhererekane rwigihugu cyanjye hakiri kare ingamba z "isoko ryikoranabuhanga", ryibasiye ibigo bya leta byigihugu cyanjye kandi byigeze kunanirwa, ariko icyarimwe, ababikora bamwe, bahagarariye n'ibigo byigenga byUbushinwa, Kugaragara utuje kandi ukomere.Isoko ry'ejo hazaza h'Ubushinwa huzuye ibintu bishya bitazwi.