Intshayelelo
Kwinkalo yetekhnoloji yale mihla, i-piezoresistive sensor sensors ibalasele ngokuchaneka, ukuthembeka, kunye nokuguquguquka.Ezi zinzwa zisebenzisa umphumo we-piezoresistive ukulinganisa utshintsho loxinzelelo kwaye zidlala indima ebalulekileyo kuluhlu olubanzi lwezicelo ukusuka kwi-industrial automation ukuya ekubekweni iliso kwezonyango.Eli nqaku lijonge kwiziseko zoxinzelelo lwe-piezoresistive sensors, kubandakanywa nemigaqo yazo, iindidi, izicelo, izibonelelo, kunye nokuqwalaselwa kokusetyenziswa.
Ukuqonda i-Piezoresistive Pressure Sensors
Umgaqo wePiezoresistance
Impembelelo ye-piezoresistive yinto ebonakalayo apho ukuchasana kombane kwezinto kutshintsha ngenxa yoxinzelelo lomatshini.Esi siphumo sisetyenziswa ngokubanzi kwii-sensors ezahlukeneyo, ezifana ne-pressure sensors, i-accelerometers, i-force sensors, kunye ne-torque sensors, ezisebenza ngokuguqula ubuninzi bomzimba kwiimpawu zombane.Baphakamisa ubuntununtunu obuphezulu, uluhlu olubanzi lokulinganisa, impendulo ekhawulezayo yefrikhwensi, kunye nezibonelelo zesakhiwo esilula kunye nexabiso eliphantsi lesiphumo se-piezoresistive.
Amacandelo kunye neMathiriyeli
Izinzwa zoxinzelelo lwe-piezoresistive zisebenza ngokuyintloko ngecandelo lazo eliphambili, inwebu ebuthathaka okanye i-diaphragm eyenziwe ngezinto ezifana ne-silicon yekristale enye, i-polysilicon, okanye iifilimu zetsimbi.Xa i-membrane ikhubaza phantsi koxinzelelo, uxinzelelo olubangelwa ngumatshini lutshintsha ukuchasana kombane, ukuguqula utshintsho kwiimpawu zombane.Ukukhethwa kwezinto kunye noyilo lwe-membrane, kubandakanywa ukumila kwayo, ubukhulu, kunye nokwakheka, kuchaphazela kakhulu uvakalelo lwenzwa, uluhlu lokulinganisa, iimpawu zeqondo lokushisa, umgca kunye nokuzinza.
I-silicon ye-crystal enye isetyenziswa ngokubanzi kwi-coefficient yayo ephezulu ye-piezoresistive kunye novakalelo, nangona ubushushu bayo obunamandla;iifilimu ze-polysilicon kunye nentsimbi zikhethwa ngenxa yobuthathaka babo obubuthathaka bokushisa okanye ukuzinza okulungileyo kunye nokuxhathisa ukubola.Ukuphucula ukusebenza kuxhomekeke kuyilo lwesekethi yebhulorho ye-Wheatstone kunye nokusetyenziswa kobuchwepheshe bembuyekezo, obufana nembuyekezo yobushushu kunye nokulinganisa indawo eyi-zero, ukunciphisa impembelelo yokutshintsha kobushushu kunye ne-zero-point drift, ngaloo ndlela kunyuswa ukuchaneka nokuzinza kwemilinganiselo. .
Iintlobo ze-Piezoresistive Sensors
Iinzwa zoxinzelelo ze-piezoresistive zihlelwe kwiintlobo ezipheleleyo, i-gauge, kunye neentlobo ezahlukeneyo ngokusekelwe kwindlela yazo yokulinganisa.Izinzwa zoxinzelelo olupheleleyo zisetyenziselwa ukulinganisa uxinzelelo olunxulumene ne-vacuum egqibeleleyo, efanelekileyo kwiinkqubo ze-vacuum kunye nemilinganiselo yemozulu, eyaziwayo ngesakhiwo segumbi elitywiniweyo kunye noluhlu olubanzi lokulinganisa.Iinzwa zoxinzelelo lwe-gauge zilinganisa uxinzelelo olunxulumene noxinzelelo lwe-atmospheric, olusebenzayo kwiinkqubo ze-hydraulic kunye ne-pneumatic, ezibonakaliswe ngesakhiwo sazo esilula kunye neendleko eziphantsi.Iinzwa zoxinzelelo ezihlukeneyo zilinganisa umahluko phakathi kwemithombo emibini yoxinzelelo, esetyenziswa ngokubanzi ekuhambeni kunye nemilinganiselo yezinga, kwaye iphawulwe ngokuchaneka okuphezulu kodwa isakhiwo esiyinkimbinkimbi.
Ukukhetha i-sensor ye-piezoresistive efanelekileyo yoxinzelelo ibandakanya ukuqwalasela imeko yesicelo kunye neemfuno zokulinganisa, apho izinzwa ezipheleleyo zibonelela ngokuchaneka okuphezulu kodwa ngexabiso eliphezulu, i-sensors ye-gauge inexabiso eliphantsi kodwa kunye noluhlu olulinganiselwe lokulinganisa, kunye nezahlulo ezihlukeneyo azichaphazeli uxinzelelo lwe-atmospheric kodwa ziza ixabiso eliphezulu.Ukongeza, imakethi ibonelela ngeenzwa ezikhethekileyo ezenzelwe iimfuno ezithile, ezinje ngeesensom zoxinzelelo oluncinci, izinzwa zoxinzelelo lobushushu obuphezulu, kunye nezinzwa zoxinzelelo ezinganyangekiyo kwi-corrosion, nganye ijolise kwiindawo ezahlukeneyo zokulinganisa kunye neemeko.
Umgaqo wokuSebenza wePiezoresistive Pressure Sensors
Inzululwazi ngasemva kwePiezoresistance
Iinzwa zoxinzelelo ze-piezoresistive zisebenza ngokusekelwe kwimpembelelo ye-piezoresistive, apho ukunyanzeliswa kombane kwezinto kutshintsha phantsi koxinzelelo lomatshini.Xa uxinzelelo lusetyenziswa kwi-membrane ebuthathaka okanye kwi-diaphragm, ebangela ukuba iguqule kwaye ivelise uxinzelelo lomatshini, olu xinzelelo luguqula ukuxhathisa kombane we-membrane.I-sensor ke iguqula olu tshintsho oluchasayo lube ngumqondiso wombane ngokusebenzisa i-Wheatstone bridge circuit, ethi, emva kokukhulisa kunye nokucoca, iguqulelwe kwixabiso elifundekayo loxinzelelo.Le nkqubo ibandakanya utshintsho kwisakhiwo se-crystal yezinto, apho uxinzelelo lomatshini luchaphazela ukuhamba kwe-electron kunye nokugxilwa kwe-carrier carrier, okukhokelela ekutshintsheni ukuchasana.
Izinto ezininzi zinefuthe ekusebenzeni kwezinzwa zoxinzelelo lwe-piezoresistive, kubandakanywa i-coefficient yempahla ye-piezoresistive, i-coefficient yobushushu, uzinzo, ukumila kwe-membrane, ubukhulu, ukwakheka, kunye noyilo lwesekethe yebhulorho ye-Wheatstone kunye nokusetyenziswa kobuchwephesha bembuyekezo njengembuyekezo yobushushu kunye no-zero- ulungelelwaniso lwamanqaku.I-piezoresistive coefficient yiparameter ebalulekileyo ebonisa amandla eempembelelo ze-piezoresistive, ngelixa ibhulorho ye-Wheatstone iyisekethe ebalulekileyo yokuguqula ngokuchanekileyo utshintsho lokumelana kwiimpawu zombane, ukuphucula ukuchaneka kunye nokuzinza kwemilinganiselo.
Ukusetyenziswa kwe-Piezoresistive Pressure Sensors
Izinzwa zoxinzelelo lwe-piezoresistive zisetyenziswa kakhulu kwiinkalo ezahlukeneyo ezifana nolawulo lwemizi-mveliso, izixhobo zonyango, i-elektroniki yemoto, kunye ne-aerospace ngenxa yobuntununtunu obuphezulu, uluhlu olubanzi lokulinganisa, ukuphendula ngokukhawuleza, isakhiwo esilula, kunye neendleko eziphantsi.Ezi zinzwa zijonga uxinzelelo kwiinkqubo ze-hydraulic kunye ne-pneumatic kwishishini lokuvelisa, ukulinganisa i-torque kunye noxinzelelo kwi-robotic joints, kunye nokuqinisekisa ukhuseleko kunye nokusebenza kakuhle kweenkqubo zokuvelisa kwi-petrochemical, amandla kunye ne-metallurgical industries.
Kwicandelo lezonyango, izinzwa zoxinzelelo lwe-piezoresistive zisetyenziselwa ukubeka esweni iiparamitha ezibalulekileyo ezifana noxinzelelo lwegazi, ukuhamba kwegazi, kunye noxinzelelo lokuphefumla, ukubonelela ngenkxaso yezobuchwepheshe ebalulekileyo ekuxilongeni uxinzelelo lwe-ventricular, uxinzelelo lwe-intracranial, kunye noxinzelelo lwamehlo.Bakwadlala indima kwitekhnoloji yezempilo enxibayo ngokubeka iliso kumsebenzi womzimba kunye nomgangatho wokulala.Kwishishini leemoto, ezi zivamvo zilinganisa uxinzelelo lwetayara, uxinzelelo lwe-injini, kunye noxinzelelo lwamafutha, ngelixa kwi-aerospace, zixhasa umlinganiselo ochanekileyo wokuphakama kwenqwelomoya, isantya somoya kunye noxinzelelo lwenjini.
Ngaphaya kwezi ndawo, izinzwa zoxinzelelo lwe-piezoresistive nazo zidlala indima ebalulekileyo ekubekeni iliso kokusingqongileyo kunye nophando lwezenzululwazi, ukulinganisa uxinzelelo lwe-atmospheric, amanqanaba amanzi, kunye nesantya somoya, kunye nokubonelela ngedatha echanekileyo yobuxhakaxhaka bezinto kunye nezifundo ze-fluid dynamics.Usetyenziso olwahlukeneyo lwezi zivamvo luqaqambisa isikhundla sazo esingundoqo kubuchwephesha banamhlanje kunye nophuhliso lwemizi-mveliso, nto leyo ebenza babe bubuchwephesha obuyimfuneko ekusebenzeni, ukubeka iliso nokulawula okuchanekileyo.
Izinto eziluncedo zePiezoresistive Pressure Sensors
Izinzwa zoxinzelelo lwe-piezoresistive, ezinovakalelo oluphezulu kunye nokuchaneka, imisebenzi emininzi kunye noluhlu olubanzi lokulinganisa, isakhiwo esilula, kunye neendleko eziphantsi, zidlala indima ebaluleke kakhulu kwiinkalo ezahlukeneyo.Ezi zinzwa zinokubona utshintsho oluncinci kakhulu loxinzelelo, lubenze bafanelekele izicelo zokulinganisa ezichanekileyo, ezifana nokubeka iliso kuxinzelelo lwegazi kunye nokuhamba kwegazi ekuhlolweni kwezonyango.Zinokuphinda ziyilelwe ukuhlangabezana neemfuno zoluhlu oluhlukeneyo loxinzelelo ukusuka kwi-micro pascals ukuya kwi-megapascals, ebonisa ukusetyenziswa kwazo ngokubanzi kwiinkqubo zokulawula i-industrial, i-automotive electronics, i-aerospace, kunye nezinye iindawo.
Inkqubo yokuvelisa i-piezoresistive pressure sensors ilula kwaye ayibizi kakhulu, idityaniswe nobukhulu bayo obubambeneyo, impendulo ekhawulezayo ye-frequency, ukuzinza kwexesha elide, kunye nekhono elinamandla lokuchasana nokuphazamiseka, okwenza kube lula ukuyigcina kunye nokutshintsha, ngelixa ifanelekile ukulinganisa okuguquguqukayo kunye nobunzima. esweni uxinzelelo lokusingqongileyo.Ezi mpawu azigcini nje ukunciphisa iindleko zokusebenza ngokubanzi kodwa ziqinisekisa nokusebenza ngokufanelekileyo nokuthembekileyo kwenkqubo.
Unyino kunye nokuqwalaselwa
Ngelixa i-piezoresistive sensor sensors isetyenziswa ngokubanzi kumashishini ahlukeneyo ngenxa yobuntununtunu obuphezulu, uluhlu olubanzi lokulinganisa, isakhiwo esilula, kunye nokusebenza kakuhle kweendleko, ukusetyenziswa kwazo kwakhona kuza kunye noluhlu lwemida ekufuneka iqwalaselwe kwizicelo eziphathekayo.Izinto zokusingqongileyo ezinje ngeqondo lobushushu, ukufuma, kunye nokungcangcazela kuchaphazela kakhulu ukusebenza kwenzwa, okunokukhokelela kutshintsho lobuntununtunu, i-zero-point drift, kunye nokuncipha kokuchaneka komlinganiselo.Ukongeza, uvakalelo oluphezulu lwezinzwa ze-piezoresistive, nangona zibenza bakwazi ukubona utshintsho loxinzelelo lwemizuzu, kubenza ukuba bachaphazeleke ngakumbi kukuphazamiseka kwengxolo.
Ukujongana nale mingeni, ukwamkela imilinganiselo efanelekileyo yembuyekezo yeqondo lokushisa, izicwangciso zokuthintela ukungcangcazela, kunye nokulinganisa rhoqo kunokuphucula kakhulu ukuchaneka komlinganiselo kunye nokuzinza kweenzwa.Nangona iinzwa zoxinzelelo ze-piezoresistive zinemida ethile kuluhlu lokulinganisa kunye nokuhambelana kweendaba, ukukhetha uhlobo olufanelekileyo lwenzwa kunye nomzekelo kunye nokuyila izinzwa kwiindawo ezithile zesicelo kunokunciphisa ngokufanelekileyo le mida.Ngaphezu koko, ngelixa izinzwa zoxinzelelo ezichanekileyo zepiezoresistive zibiza kakhulu, utyalo-mali kwii-sensor ezichanekileyo kunye nokwamkela amanyathelo ahambelanayo okuphucula kunokuphucula ukusebenza ngokubanzi kunye nokuthembeka kwenkqubo ekuhambeni kwexesha.
Isishwankathelo, ngaphandle kwemida ethile, abenzi boxinzelelo be-piezoresistive banokwandisa inzuzo yabo kwaye bahlangabezane neemfuno zezicelo ezahlukeneyo eziyinkimbinkimbi ngokukhetha okunengqiqo kunye noyilo lwesicelo oluchanekileyo.Oku kufuna ukuba abasebenzisi baqwalasele ngokupheleleyo iiparitha eziphambili ezifana nezinto ezisingqongileyo, uluhlu lokulinganisa, kunye nokuhambelana kweendaba ngexesha lokhetho kunye nokusetyenziswa, kunye nokwamkela amanyathelo ahambelanayo ukuqinisekisa ukuchaneka kunye nokuzinza kweenzwa.
Izinto ezintsha kwi-Piezoresistive Pressure Sensing Technology
Inkqubela phambili kwiZixhobo nakwiTekhnoloji
Inkqubela phambili eqhubekayo kwinzululwazi yezinto eziphathekayo kunye nobuchwepheshe iguqula uphuhliso lwezinzwa zoxinzelelo ze-piezoresistive, ezibonakaliswa ikakhulu kuphuhliso lwezixhobo ezintsha ze-piezoresistive, ukusetyenziswa kobuchwepheshe be-microfabrication, ukuhlanganiswa kwembuyekezo kunye nobuchwepheshe obungenacingo, kunye nokubandakanywa kobuchwepheshe obukrelekrele.Izinto ezintsha ze-piezoresistive ezifana ne-nanomaterials kunye ne-semiconductor materials aziboneleli kuphela i-piezoresistive coefficients ephezulu kunye ne-coefficients ephantsi yokushisa kodwa iphinde ikhulise ukuzinza kwenzwa, iphucula kakhulu i-sensor sensitivity kunye nokuchaneka.
Ukusetyenziswa kobuchwephesha be-microfabrication kwenza ukuveliswa kwe-miniature, i-high-precision pressure sensors, ukunciphisa iindleko kunye nokwandisa ukusebenza kakuhle kwemveliso, ukuvumela ukuba i-sensors isetyenziswe kuluhlu olubanzi lweemeko zesicelo.Ngaphaya koko, ubugcisa bembuyekezo obukwinqanaba eliphezulu njengembuyekezo yobushushu kunye nembuyekezo ye-zero-point drift iphucula ngakumbi ukuchaneka kunye nokuzinza kwemilinganiselo.Ukudityaniswa kobuchwephesha obungenazingcingo kwenza ukuba ukuhanjiswa kwedatha kube lula ngakumbi, kuphucula kakhulu ukuguquguquka kokufakela kunye nokusetyenziswa kunye nokuphucula ukhuseleko lwenkqubo.
Umkhombandlela wekamva leTekhnoloji yokubona uxinzelelo
Itekhnoloji yobukrelekrele, ukudibanisa itekhnoloji yokuva, itekhnoloji ye-microelectronics, kunye netekhnoloji yekhompyuter, ziqhuba izinzwa zoxinzelelo lwe-piezoresistive kuphuhliso olukrelekrele ngakumbi.Oku akupheleli nje ekuqondeni umlinganiselo okrelekrele, uhlalutyo lwedatha, kunye nemisebenzi yokuxilongwa kwempazamo kodwa ikwanyusa kakhulu ukusebenza kakuhle kunye nexabiso leenzwa kwizicelo ezisebenzayo.Ngokomzekelo, ukusetyenziswa kwama-nanomaterials kuphucula kakhulu uvakalelo kunye noluhlu lokulinganisa, iteknoloji ye-MEMS iyaqaphela i-sensor miniaturization kunye nokunciphisa iindleko, iteknoloji yokucubungula uphawu lwedijithali iphakamisa kakhulu ukuchaneka komlinganiso kunye nokuzinza, kunye neteknoloji yokubona i-wireless inika ithuba lokuhanjiswa kwedatha engenazintambo kwiinzwa.Ezi nkqubela phambili zihlangene zikhuthaza uphuhliso olukhawulezayo kunye nokwandiswa kwezicelo zeteknoloji ye-piezoresistive sensor sensor.
Ukukhetha i-Piezoresistive Pressure Sensor efanelekileyo
Iikhrayitheriya zokuKhetha
Xa ukhetha inzwa yoxinzelelo lwe-piezoresistive, izinto eziphambili ezifana noluhlu lokulinganisa, uvakalelo, kunye neemeko zokusingqongileyo zibalulekile.Ukuqinisekisa ukuba uluhlu olukhethiweyo lokulinganisa inzwa lugubungela uluhlu olufunekayo loxinzelelo luyimfuneko ukuphepha ukudlula imida yokusebenza kwayo kunye nokubangela iimpazamo zokulinganisa.Uvakalelo yenye into egqibayo, echaphazela ngokuthe ngqo ukuchaneka komlinganiselo;ngoko ke, ukukhetha inzwa enovakalelo olufanelekileyo kwiimfuno zokuchaneka kwesicelo kuyimfuneko.Ukongeza, izinto zokusingqongileyo ezinje ngeqondo lobushushu, ukufuma, kunye nokungcangcazela nazo zinokuchaphazela ukusebenza kwesivamvo, nto leyo eyenza ukuba kubaluleke kakhulu ukukhetha izinzwa ezinokuziqhelanisa neemeko ezithile zokusingqongileyo.
Ukukhetha i-sensor ye-piezoresistive yoxinzelelo olufanelekileyo kwisicelo esithile kufuna kwakhona ukuqwalasela ezinye izinto ezifana nobukhulu, ubunzima kunye neendleko.Umzekelo, usetyenziso lolawulo lwemizi-mveliso ludla ngokufuna abenzi boluvo abanoluhlu olubanzi lomlinganiselo, ubuntununtunu obuphezulu, kunye nobuchule obunamandla bokuchasana nokuphazamiseka, ngelixa izixhobo zonyango zibeka phambili ukuchaneka komlinganiselo ophezulu, uzinzo oluhle, kunye nokuhambelana kwebhayoloji okugqwesileyo.Izivamvo zecandelo lombane weemoto kufuneka zihlangane, zibe khaphukhaphu, zimelane namaqondo obushushu aphezulu, kwaye zikwazi ukumelana nokungcangcazela, kanti abenzi boluvo bommandla we-aerospace zifuna ukuchaneka komlinganiselo ophezulu kakhulu, uzinzo, kunye nokumelana nemitha.Ngoko ke, ukuqonda kunye nokuvavanya iimfuno ezithile zesicelo ngasinye kunye nokukhetha imodeli efanelekileyo ye-piezoresistive yoxinzelelo lwe-sensor ibalulekile ekuqinisekiseni ukusebenza kakuhle kwenkqubo kunye nokuthembeka kwexesha elide.
Ixesha lokuposa: Mar-12-2024