Isebenza ezingxenyeni ze-CAT zokumba i-Pressure Sensor 276-6793

1. Inzwa yokucindezela ohlelweni lokukala

Ekulawuleni okuzenzakalelayo kwenqubo yokukala, inzwa yokucindezela iyadingeka ukuze izwe kahle isignali yamandla adonsela phansi. Futhi inokusabela okungcono okuguquguqukayo nokusebenza okungcono kokulwa nokuphazamiseka. Isignali enikezwe inzwa yokucindezela ingaboniswa ngokuqondile, irekhodwe, iphrintwe, igcinwe noma isetshenziselwe ukulawula impendulo yesistimu yokuthola. Ukuhlanganiswa kwenzwa yokucindezela kanye nesifunda sokulinganisa kunciphisa kakhulu ubukhulu bemishini. Ngaphezu kwalokho, ukuthuthukiswa kobuchwepheshe bokuvikela kuzophinde kuthuthukise ikhono lokulwa nokuphazamiseka kanye ne-othomathikhi yokulawula inzwa yokucindezela isisindo.

2. Izinzwa zokucindezela embonini ye-petrochemical

Inzwa yokucindezela ingenye yamadivayisi wokulinganisa asetshenziswa kakhulu ekulawuleni okuzenzakalelayo kwe-petrochemical. Kumaphrojekthi wamakhemikhali amakhulu, cishe zonke izinhlelo zokusebenza zezinzwa zokucindezela zimboziwe: ukucindezela okuhlukile, ukucindezela okuphelele, ukucindezela kwegeji, ukucindezela okukhulu, ukucindezela okuhlukile, izinga lokushisa eliphezulu, izinga lokushisa eliphansi, izinzwa ze-flange ezikude zezinto ezihlukahlukene kanye nokucubungula okukhethekile.

Isidingo sezinzwa zengcindezi embonini ye-petrochemical sigxile kakhulu ezicini ezintathu: ukwethembeka, ukuzinza kanye nokunemba okuphezulu. Phakathi kwazo, ukwethembeka kanye nezidingo eziningi ezengeziwe, njengesilinganiso sebanga kanye nohlobo lwebhasi, kuncike ekwakhiweni kwesakhiwo, izinga lobuchwepheshe bokucubungula kanye nezinto zokwakha zomthumeli. Ukuzinza nokunemba okuphezulu kwe-pressure transmitter kuqinisekiswa ngokuyinhloko ukuzinza nokulinganisa ukunemba kwenzwa yokucindezela.

Ukunemba kokulinganisa kanye nesivinini sokuphendula senzwa yokucindezela kuhambisana nokunemba kokulinganisa kwe-transmitter yokucindezela. Izinga lokushisa kanye nezici zengcindezi emile kanye nokuzinza kwesikhathi eside kwenzwa yokucindezela kuhambisana nokuzinza kwe-transmitter yokucindezela. Isidingo sezinzwa zengcindezi embonini ye-petrochemical sibonakala ezicini ezine: ukunemba kokulinganisa, ukuphendula okusheshayo, izici zokushisa nezici zengcindezi emile, nokuzinza kwesikhathi eside.

3. Inzwa yokucindezela ekwelapheni amanzi

Imboni yokuhlanza amanzi yokuvikela imvelo ithuthuke ngokushesha eminyakeni yamuva futhi inamathemba abanzi. Ekulapheni kwamanzi namanzi angcolile, izinzwa zokucindezela zinikeza ukulawula okubalulekile nokuqapha ukuvikelwa kwesistimu nokuqinisekiswa kwekhwalithi. Inzwa yokucindezela iguqula ingcindezi (imvamisa ingcindezi yoketshezi noma igesi) ibe isignali kagesi yokuphumayo. Amasignali kagesi womfutho angasetshenziswa futhi ukukala izinga loketshezi loketshezi olumile, ukuze asetshenziswe ukukala izinga loketshezi. Isici sokuzwa senzwa yokucindezela ikakhulukazi sakhiwe isici se-silicon cup sensing, uwoyela we-silicone, i-isolation diaphragm kanye ne-air duct. Ingcindezi yendawo elinganisiwe idluliselwa ohlangothini lwesici senkomishi ye-silicon nge-isolation diaphragm namafutha abicah. Ingcindezi yereferensi yomkhathi isebenza ngakolunye uhlangothi lwento yenkomishi ye-silicon ngomgudu womoya. Inkomishi ye-Silicon iyisinkwa se-silicon esimise okwenkomishi esingaphansi esincanyana. Ngaphansi kwesenzo sokucindezela, i-diaphragm engezansi kwendebe ikhubazekile ngokunwebeka ngokususwa okuncane. I-silicon ye-Monocrystalline iyi-elastomer ekahle. I-deformation ilingana ngokuqinile nengcindezi, futhi ukusebenza kokululama kuhle kakhulu.

4. Izinzwa zokucindezela embonini yezokwelapha

Ngokuthuthuka kwemakethe yemishini yezokwelapha, izidingo eziphakeme zibekwe phambili ukuze kusetshenziswe izinzwa zengcindezi embonini yezokwelapha, njengokunemba, ukwethembeka, ukuzinza kanye nevolumu. Inzwa yokucindezela inohlelo oluhle lokuncishiswa kwe-catheter nesilinganiso senzwa yokushisa.

5.MEMS inzwa yokucindezela

Inzwa yokucindezela ye-MEMS iwuhlobo lwento yefilimu ezacile, ezokonakala lapho ingaphansi kwengcindezi. Amageji okulinganisa (i-piezoresistive sensing) angasetshenziswa ukukala lokhu kuguga, futhi i-capacitive sensing ingasetshenziswa ukukala ukuguqulwa kwebanga phakathi kwezindawo ezimbili.