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Mhando dzemapressure transmitters

Kuzvizivisa kwakapfava kwepressure transmitter

Sekudzvanywa sensor iyo inobuda chiratidzo cheyakajairwa, chinodzvanya chinotapurirana chiridzwa chinogamuchira chinodzvanywa chinoshanduka uye chinochishandura kuita chakajairwa chinobuda chiratidzo muchiyero. Inogona kushandura mapeji emagetsi emagetsi egasi, mvura, nezvimwewo zvinonzwikwa ne-load cell sensor mumagetsi emagetsi emagetsi (akadai se4-20mADC, nezvimwewo) kuti ape zviridzwa zvechipiri zvakadai sekuratidza maalarm, marekodha, zvigadziridzo, nezvimwewo zvekuyera uye kuratidza Uye maitiro ekugadzirisa.

The classification of pressure transmitters

Kazhinji madhiraivha atinotaura nezvawo akakamurwa zvinoenderana nemusimboti:
Capacitive pressure transmitters, resistive pressure transmitters, inductive pressure transmitters, semiconductor pressure transmitters, uye piezoelectric pressure transmitters yekuyera-frequency kuyerwa. Pakati pavo, resistive pressure transmitters ndiyo inonyanya kushandiswa. Iyo capacitive pressure transmitter inotora Rosemount's 3051S transmitter semumiriri wezvigadzirwa zvepamusoro-soro.

Pressure transmitters inogona kupatsanurwa kuita simbi, ceramic, diffused silicon, monocrystalline silicon, safire, sputtered firimu, zvichingodaro zvichienderana nekumanikidza kusinganzwisisike zvikamu.

  • Metal pressure transmitter ine huronyo husina kunaka, asi ine tembiricha shoma, uye inokodzera nzvimbo dzine tembiricha yakakura uye yakaderera kunyatsoita zvinodiwa.
  • Ceramic pressure sensors ine zvirinani kurongeka, asi zvakanyanya kukanganiswa nekupisa. Ceramics zvakare ine mukana wekukanganisa kupikisa uye kusagadzikana kwekuora, iyo inogona kushandiswa mumunda wekupindura.
  • Iko kudzvanywa kwekutapurirana chaiko kwesilicon yakapararira kwakakwira zvakanyanya, uye tembiricha yekudonha zvakare yakakura, saka muripo wetembiricha unowanzo kudiwa isati yashandiswa. Uyezve, kunyange mushure mekubhadhara kwekushisa, kudzvinyirira pamusoro pe125 ° C hakugoni kuyerwa. Nekudaro, patembiricha yekamuri, iyo senitivity coefficient yeiyo diffused silicon ndeye 5 yakapetwa neiyo ceramics, saka inowanzoshandiswa mumunda wekuyera-chaiyo kuyerwa.
  • Single crystal silicon pressure transmitter ndiyo yakanyanya kunyatso sensor mumaindasitiri maitiro. Iyo ishanduro yakakwidziridzwa yesilicon yakapararira. Zvechokwadi, mutengo unovandudzwawo. Parizvino, Yokogawa weJapan ndiye mumiriri mumunda we monocrystalline silicon pressure.
  • Iyo sapphire pressure transmitter haina hanya nekushanduka kwekushisa, uye ine maitiro akanaka ekushanda kunyangwe pasi pemamiriro ekushisa kwepamusoro; safire ine simba rakanyanyisa rekudzivirira kwemwaranzi; hapana pn drift; inogona kushanda zvakajairwa pasi pemamiriro ekushanda akaipisisa uye inovimbika Kuita kwepamusoro, kurongeka kwakanaka, kukanganisa kushoma kwetembiricha, uye kukwira kwemutengo wekuita.
  • Iyo sputtering yakaonda firimu pressure transmitter haina chero inonamira, uye inoratidza yakakwirira-yakareba kugadzikana uye kuvimbika pane inonamira strain gauge sensor; haina kukanganiswa nekupisa: kana tembiricha yachinja 100 ℃, zero Drift inongova 0.5%. Kubata kwayo tembiricha kwakakwira zvakanyanya kupfuura kupararira silicon pressure sensor; uyezve, inogona kubata zvakananga kune general corrosive media.

Nheyo dzemhando dzakasiyana dzematanho ekumanikidza

  • Nheyo ye capacitive pressure transmitter.

Kana dzvinyiriro ichiita zvakananga pamusoro peiyo diaphragm yekuyera, iyo diaphragm inoburitsa diki deformation. Iyo yepamusoro-chaiyo dunhu padiaphragm yekuyeresa inoshandura iyi diki deformation kuita yakanyanya linear voltage inoenzana nedzvinyiriro uye inoenzana neiyo excitation voltage. Signal, wobva washandisa chip yakatsaurirwa kushandura iyi voltage siginecha kuita indasitiri chiyero 4-20mA yazvino chiratidzo kana 1-5V chiratidzo chemagetsi.

  • Iyo musimboti weiyo diffused silicon pressure transmitter

Kudzvinyirirwa kwepakati yakayerwa kunoshanda zvakananga pa diaphragm ye sensor (kazhinji 316L diaphragm), zvichiita kuti diaphragm ibudise micro displacement yakaenzana nekumanikidzwa kwepakati, kushandura kupikisa kukosha kwe sensor, uye kuicherechedza ne Wheatstone circuit Iyi shanduko, uye shandura uye inobudisa chiratidzo chechiyero chechiyero chinoenderana nekumanikidzwa uku.

  • Nheyo ye monocrystalline silicon pressure transmitter

Piezoresistive pressure sensors inogadzirwa uchishandisa piezoresistive mhedzisiro yeimwe crystal silicon. Single crystal silicon wafer inoshandiswa sechinhu elastic. Kana dzvinyiriro ichichinja, iyo imwe crystal silicon inoburitsa kunetsa, zvekuti iyo strain resistance yakapararira pairi inoburitsa shanduko yakaenzana nekuyerwa kudzvanywa, uye ipapo iyo inoenderana voltage inobuda chiratidzo inowanikwa nebhiriji reketi.

  • Nheyo yeceramic pressure transmitter

Dzvinyiriro yacho inobata zvakananga pamberi peiyo ceramic diaphragm, zvichikonzera kuderera kudiki kweiyo diaphragm. Iyo gobvu firimu resistor yakadhindwa kuseri kweceramic diaphragm uye yakabatanidzwa kune Wheatstone zambuko (yakavharwa zambuko) nekuda kweiyo piezoresistive mhedzisiro yevaristor, Bhiriji rinogadzira yakanyanya linear voltage siginecha zvinoenderana nekumanikidza uye zvinoenderana neiyo excitation voltage. Inowanzo shandiswa pakuyera kuyerwa kwemhepo compressors, mamwe maceramics anoshandiswa.

  • Musimboti we strain gauge pressure transmitter

Anonyanya kushandiswa strain gauge pressure transmitters isimbi inopikisa strain geji uye semiconductor strain geji. Metal resistance strain gauge imhando yemudziyo unonzwisa tsitsi unoshandura shanduko yekunetsa pachikamu chekuyedza kuita chiratidzo chemagetsi. Kune marudzi maviri ewaya strain gauge uye simbi foil strain geji. Kazhinji iyo strain gauge inosungirirwa zvakasimba kune mechanical strain matrix kuburikidza neadhesive yakakosha. Kana iyo matrix iri pasi pekunetseka kwekuchinja, iyo yekupikisa strain gauge inokanganisawo, kuitira kuti kukosha kwekupokana kweiyo strain gauge kuchinje, zvekuti Iyo voltage inoshandiswa kune inopikisa inoshanduka. Strain gauge pressure transmitters ishoma pamusika.

  • Sapphire pressure transmitter

Iyo sapphire pressure transmitter inoshandisa iyo strain resistance yekushanda musimboti, inotora yakakwirira-chaiyo silicon-sapphire inonzwa zvinhu, uye inoshandura iyo yekumanikidza chiratidzo kuita yakajairwa magetsi chiratidzo kuburikidza neakazvitsaurira amplifier wedunhu.

  • Sputtering film pressure transmitter

Iyo sputtering pressure sensitive element inogadzirwa nemicroelectronics tekinoroji, ichigadzira bhiriji rakasimba uye rakagadzikana reWheatstone pamusoro peiyo elastic stainless simbi diaphragm. Kana dzvinyiriro yesvikiro yakayerwa ichiita pa elastic stainless simbi diaphragm, zambuko reWheatstone kune rimwe divi rinoburitsa chiratidzo chemagetsi chinobuda chinoenderana nekumanikidzwa. Nekuda kwekunaka kwayo kupikisa, mabhaisikopo akapushwa anowanzo kushandiswa muzviitiko zvinogara zvichimanikidza, senge hydraulic michina.

Precautions yekusarudza yepressure transmitter

  • Transmitter pressure range value kusarudzwa:

Kutanga sarudza huwandu hwepamusoro hwekuyerwa kwakayerwa muhurongwa. Kazhinji kutaura, unofanirwa kusarudza transmitter ine pressure range inosvika 1.5 times hombe pane iyo yakanyanya kukosha, kana kurega iyo yakajairika pressure range ichiwira pane pressure transmitter. 1/3 ~ 2/3 yezvakajairwa siyana zvakare inzira yakajairika.

  • Imhando ipi yepressure medium:

Viscous zvinwiwa uye madhaka zvinovharira madhiri madoko. Ko zvinonyungudutsa kana zvinoparadza zvinhu zvinoparadza zvinhu zviri mutransmitter zvinosangana zvakananga nenhau idzi.
Izvo zvinhu zveiyo general pressure transmitter inobata yepakati ndeye 316 simbi isina tsvina. Kana iyo yepakati isiri kuora kusvika ku316 simbi isina tsvina, saka zvese zvinotapurirana zvakakodzera kuyera kudzvanywa kwepakati;
Kana iyo yepakati ichiora kusvika ku316 simbi isina tsvina, kemikari chisimbiso chinofanira kushandiswa, uye kuyerwa kwakashata kunofanira kushandiswa. Kana iyo capillary chubhu yakazadzwa nesilicone oiri ikashandiswa kutungamira kudzvanywa, inogona kudzivirira iyo yekumanikidza transmitter kubva mukuora uye kurebesa hupenyu hweiyo pressure transmitter.

  • Yakawanda sei yechokwadi iyo transmitter inoda:

Iko kurongeka kunotarwa ne: kusiri-mutsara, hysteresis, kusadzokororwa, tembiricha, zero offset chiyero, uye tembiricha. Iyo yakakwirira yekururama, iyo yakakwirira mutengo. Kazhinji, iko kurongeka kweiyo diffused silicon pressure transmitter ndeye 0.5 kana 0.25, uye iyo capacitive kana monocrystalline silicon pressure transmitter ine huchokwadi hwe0.1 kana kunyange 0.075.

  • Maitiro ekubatanidza transmitter:

Kazhinji, madhiraivha anoiswa pamapombi kana matangi. Zvechokwadi, chikamu chiduku chazvo chakaiswa uye chinoshandiswa nemamita ekuyerera. Iko kunowanzo kuve nemhando nhatu dzekuisa dzemakudzvanyidzira: shinda, flange, uye clamp. Naizvozvo, usati wasarudza iyo yekumanikidza transmitter, iyo nzira yekubatanidza inofanirwa kutariswa. Kana yakarukwa, zvinodikanwa kuti uone kutsanangurwa kweshinda. Kune flanges, zvinodikanwa kufunga nezve flange zvirevo zvezita redhayamita.

Pressure transmitter indasitiri sumo

Nyika dzinenge makumi mana pasirese dziri kuita tsvagiridzo nekugadzirwa kwemasensa, ayo United States, Japan, neGermany ndiwo matunhu ane hukuru hwekubuda sensor. Idzi nyika nhatu pamwe chete dzinotora zvinopfuura makumi mashanu muzana emusika wepasirose sensor.

Mazuvano, musika wekudzvanya musika munyika yangu musika wakakura une musika wakanyanya. Zvakadaro, chinzvimbo chikuru inyika dzekunze dzinomiririrwa naEmerson, Yokogawa, Siemens, etc. Brand-zita rezvigadzirwa zvinokwana 70% yemugove wemusika uye zvine mukana wakakwana mumapurojekiti makuru uye epakati nepakati.

Izvi zvinokonzerwa nekutevera kwekutanga kugamuchirwa kwenyika yangu ye "musika wehunyanzvi" zano, iro rakarova zvakanyanya mabhizinesi ehurumende yenyika yangu uye rakambove mukutadza, asi panguva imwecheteyo, vamwe vagadziri, vanomiririrwa nemabhizinesi epachivande eChina, chinyararire Vanooneka uye vakasimba. Musika weChina wemangwana wekudzvanya transmitter wakazara nezvitsva zvisingazivikanwe.


Nguva yekutumira: Zvita-15-2021