Selelekela
Lefapheng la theknoloji ea sejoale-joale ea kutlo, lisensara tsa khatello ea piezoresistive li totobala ka ho nepahala ha tsona, ho tšepahala le ho feto-fetoha ha maemo. Li-sensor tsena li sebelisa phello ea piezoresistive ho lekanya liphetoho tsa khatello le ho bapala karolo ea bohlokoa mefuteng e mengata ea lits'ebetso ho tloha ho othomathike ea indasteri ho ea ho tlhahlobo ea bongaka. Sengoliloeng sena se shebisisa metheo ea li-sensor tsa khatello ea piezoresistive, ho kenyeletsoa melaoana ea tsona, mefuta, lits'ebetso, melemo le lintlha tse sebelisoang.
Ho utloisisa Piezoresistive Pressure Sensors
Molao-motheo oa Piezoresistance
Phello ea piezoresistive ke ketsahalo ea 'mele moo khanyetso ea motlakase ea thepa e fetohang ka lebaka la khatello ea mochine. Phello ena e sebelisoa haholo ho li-sensor tse fapaneng, joalo ka li-sensor tsa khatello, li-accelerometer, li-sensor tsa matla, le li-sensor tsa torque, tse sebetsang ka ho fetola bongata ba 'mele hore e be matšoao a motlakase. Ba phahamisa kutlo e phahameng, mefuta e mengata ea litekanyo, karabo e potlakileng ea khafetsa, le melemo ea sebopeho se bonolo le litšenyehelo tse tlase tsa phello ea piezoresistive.
Likaroloana le Lisebelisoa
Li-sensor tsa khatello ea piezoresistive li sebetsa haholo-holo ka karolo ea tsona ea mantlha, lesela le thata kapa diaphragm e entsoeng ka thepa e kang silicon e le 'ngoe ea kristale, polysilicon kapa lifilimi tsa tšepe. Ha lesela le senyeha tlas'a khatello, khatello ea mochine e hlahisoang e fetola ho hanyetsa ha motlakase, ho fetola liphetoho tsa khatello hore e be lipontšo tsa motlakase. Khetho ea thepa le moralo oa lera, ho kenyeletsoa sebopeho sa eona, botenya le sebopeho, li ama haholo kutlo ea sensor, mefuta ea litekanyo, litšobotsi tsa mocheso, mola le botsitso.
Silicone e le 'ngoe ea kristale e sebelisoa haholo bakeng sa coefficient ea eona e phahameng ea piezoresistive le kutloisiso, ho sa tsotellehe boikutlo bo matla ba mocheso; lifilimi tsa polysilicon le tšepe li khethiloe bakeng sa kutloisiso ea tsona ea mocheso e fokolang kapa botsitso bo botle le ho hanyetsa kutu. Ntlafatso ea ts'ebetso e boetse e its'etleha holim'a moralo oa potoloho ea borokho ba Wheatstone le ts'ebeliso ea mahlale a matšeliso, joalo ka matšeliso le mocheso oa ntlha ea zero, ho fokotsa tšusumetso ea ho fetoha ha mocheso le ntlha ea zero-point, kahoo ho matlafatsa ho nepahala le botsitso ba litekanyo. .
Mefuta ea li-Sensors tsa Piezoresistive
Li-sensor tsa khatello ea piezoresistive li arotsoe ka mefuta e felletseng, ea gauge le e fapaneng ho latela mokhoa oa tsona oa ho lekanya. Li-sensor tsa khatello e felletseng li sebelisetsoa ho lekanya khatello e amanang le vacuum e phethahetseng, e loketseng lits'ebetso tsa vacuum le litekanyo tsa boemo ba leholimo, tse tsejoang ka sebopeho sa kamore e tiisitsoeng le mefuta e mengata ea litekanyo. Li-sensors tsa khatello ea likhakanyo li lekanya khatello e amanang le khatello ea sepakapaka, e sebetsang lits'ebetsong tsa hydraulic le pneumatic, tse khetholloang ka sebopeho sa tsona se bonolo le theko e tlase. Li-sensor tse fapaneng tsa khatello li lekanya phapang pakeng tsa mehloli e 'meli ea khatello, e sebelisoang haholo ho phallo le litekanyo tsa boemo,' me e tsejoa ka mokhoa o nepahetseng o phahameng empa o rarahaneng haholoanyane.
Ho khetha mochine o nepahetseng oa khatello ea piezoresistive ho kenyelletsa ho nahana ka boemo ba kopo le litlhoko tsa tekanyo, moo li-sensor tse feletseng li fanang ka ho nepahala ho phahameng empa ka theko e phahameng, li-sensorer tsa gauge li theko e tlaase empa li na le mefuta e fokolang ea tekanyo ea tekanyo, 'me li-sensors tse fapaneng ha li amehe ke khatello ea sepakapaka empa li tla. theko e phahameng. Ntle le moo, 'maraka o fana ka li-sensor tse ikhethileng tse etselitsoeng litlhoko tse ikhethang, joalo ka li-sensor tse nyane tsa khatello, li-sensor tsa khatello ea mocheso o phahameng, le li-sensor tse hananang le kutu, e' ngoe le e 'ngoe e shebile maemo le maemo a fapaneng a tekanyo.
Molao-motheo o sebetsang oa li-Piezoresistive Pressure Sensors
Saense ka morao ho Piezoresistance
Li-sensor tsa khatello ea piezoresistive li sebetsa ho latela phello ea piezoresistive, moo ho hanyetsa ha motlakase ho fetohang tlas'a khatello ea mochine. Ha khatello e sebelisoa ho lera le thata kapa diaphragm, e etsa hore e holofale le ho hlahisa khatello ea kelello, khatello ena e fetola ho hanyetsa motlakase oa lera. Sensor e ntan'o fetola phetoho ena ea khanyetso hore e be letšoao la motlakase ka potoloho ea borokho ea Wheatstone, eo, ka mor'a ho matlafatsa le ho sefa, e fetoloa boleng ba khatello e baloang. Ts'ebetso ena e kenyelletsa liphetoho mohahong oa kristale oa thepa, moo khatello ea mechine e amang ho tsamaea ha elektronike le ho tsepamisa mohopolo oa mojari, e leng se lebisang phetohong ea ho hanyetsa.
Lintlha tse 'maloa li susumetsa ts'ebetso ea li-sensor tsa khatello ea piezoresistive, ho kenyeletsoa coefficient ea thepa ea piezoresistive, coefficient ea mocheso, botsitso, sebopeho sa membrane, botenya, sebopeho, le moralo oa potoloho ea Wheatstone Bridge le ts'ebeliso ea mahlale a matšeliso joalo ka matšeliso a mocheso le zero- tekanyo ea ntlha. Piezoresistive coefficient ke paramethara ea bohlokoa e bonts'ang matla a phello ea piezoresistive ea thepa, ha borokho ba Wheatstone e le potoloho ea bohlokoa bakeng sa ho fetola hantle liphetoho tsa khanyetso hore e be mats'oao a motlakase, ho ntlafatsa ho nepahala le botsitso ba litekanyo.
Lisebelisoa tsa Piezoresistive Pressure Sensors
Li-sensor tsa khatello ea piezoresistive li sebelisoa haholo mafapheng a fapaneng a kang taolo ea indasteri, lisebelisoa tsa bongaka, lisebelisoa tsa elektronike tsa likoloi, le sefofane ka lebaka la kutloisiso ea bona e phahameng, mefuta e mengata ea ho lekanya, karabo e potlakileng ea maqhubu, mohaho o bonolo, le litšenyehelo tse tlaase. Li-sensor tsena li lekola khatello ea litsamaiso tsa hydraulic le pneumatic indastering ea tlhahiso, li lekanya torque le khatello ho manonyeletso a liroboto, le ho netefatsa polokeho le ts'ebetso ea ts'ebetso ea tlhahiso indastering ea petrochemical, matla le metallurgical.
Lefapheng la bongaka, li-sensor tsa khatello ea piezoresistive li sebelisoa ho lekola maemo a bohlokoa joalo ka khatello ea mali, phallo ea mali le khatello ea ho hema, ho fana ka ts'ehetso ea bohlokoa ea tekheniki bakeng sa ho lekola khatello ea ventricular, khatello ea methapo le khatello ea mahlo. Ba boetse ba bapala karolo ea mahlale a bophelo bo botle a ka aparoang ka ho lekola boikoetliso ba 'mele le boleng ba boroko. Indastering ea likoloi, lisensara tsena li lekanya khatello ea thaere, khatello ea enjene le khatello ea mafura, ha li le sebakeng sa sefofane, li tšehetsa tekanyo e nepahetseng ea bophahamo ba sefofane, lebelo la sefofane le khatello ea enjene.
Ka ntle ho libaka tsena, li-sensor tsa khatello ea piezoresistive le tsona li bapala karolo ea bohlokoa ho lekola tikoloho le lipatlisiso tsa mahlale, ho lekanya khatello ea sepakapaka, maemo a metsi le lebelo la moea, le ho fana ka lintlha tse nepahetseng bakeng sa mechini ea thepa le lithuto tsa matla a mokelikeli. Lisebelisoa tse fapaneng tsa li-sensor tsena li totobatsa boemo ba tsona ba bohlokoa ho thekenoloji ea sejoale-joale le nts'etsopele ea indasteri, e leng se etsang hore e be theknoloji ea bohlokoahali bakeng sa ho beha leihlo le taolo e nepahetseng.
Melemo ea Piezoresistive Pressure Sensors
Li-sensor tsa khatello ea piezoresistive, tse nang le kutlo e phahameng le ho nepahala, ts'ebetso e mengata le mefuta e mengata ea litekanyo, sebopeho se bonolo, le litšenyehelo tse tlase, li bapala karolo ea bohlokoa mafapheng a fapaneng. Li-sensor tsena li khona ho bona liphetoho tse nyane haholo tsa khatello, li etsa hore li tšoanelehe bakeng sa litekanyo tse nepahetseng haholo, joalo ka ho beha leihlo khatello ea mali le phallo ea mali tlhahlobong ea bongaka. Li ka boela tsa etsoa ho finyella litlhoko tsa mefuta e fapaneng ea khatello ho tloha ho micro pascals ho ea ho megapascals, ho bonts'a ts'ebetso ea bona e pharaletseng tsamaisong ea tsamaiso ea indasteri, lisebelisoa tsa elektronike tsa likoloi, sefofane le libaka tse ling.
Ts'ebetso ea tlhahiso ea li-piezoresistive pressure sensors e bonolo ebile e batla e theko e tlaase, e kopantsoe le boholo ba bona ba compact, karabo e potlakileng ea maqhubu, botsitso ba nako e telele, le matla a matla a ho thibela ho kena-kenana, ho etsa hore ho be bonolo ho e boloka le ho e nkela sebaka, ha e ntse e loketse tekanyo e matla le e rarahaneng. tlhokomelo ea khatello ea tikoloho. Litšobotsi tsena ha li fokotse feela litšenyehelo tse akaretsang tsa ts'ebetso empa hape li netefatsa ts'ebetso e sebetsang le e tšepahalang ea sistimi.
Meeli le ho nahanela
Le hoja li-sensor tsa khatello ea piezoresistive li sebelisoa haholo liindastering tse fapa-fapaneng ka lebaka la kutloisiso ea tsona e phahameng, tekanyo e pharaletseng ea tekanyo, sebopeho se bonolo, le katleho ea litšenyehelo, tšebeliso ea tsona e boetse e tla le letoto la mefokolo e lokelang ho nahanoa ka mekhoa e sebetsang. Lintlha tsa tikoloho joalo ka mocheso, mongobo, le ho thothomela li ama ts'ebetso ea sensor haholo, tse ka lebisang liphetohong tsa kutlo, ho hoholeha ha zero-point, le ho fokotseha ho nepahetseng ha tekanyo. Ho feta moo, kutlo e phahameng ea li-piezoresistive sensors, le hoja e li nolofalletsa ho lemoha liphetoho tsa metsotsoana ea khatello, e boetse e etsa hore li khone ho kena-kenana le lerata.
Ho sebetsana le liphephetso tsena, ho nka mehato e nepahetseng ea matšeliso a mocheso, maano a ho thibela ho thothomela, le ho lekanya khafetsa ho ka ntlafatsa haholo ho nepahala ha tekanyo le botsitso ba li-sensor. Le hoja li-sensor tsa khatello ea piezoresistive li na le mefokolo e itseng mofuteng oa litekanyo le ho lumellana le mecha ea litaba, ho khetha mofuta o nepahetseng oa kutlo le mohlala le ho qapa li-sensor bakeng sa libaka tse khethehileng tsa kopo ho ka fokotsa meeli ena ka katleho. Ho feta moo, le hoja li-sensor tsa khatello e phahameng ea piezoresistive li batla li le theko e boima, ho tsetela ho li-sensor tse nepahetseng le ho nka mehato e lumellanang ea ho ntlafatsa ho ka ntlafatsa ts'ebetso ea kakaretso le ho tšepahala ha tsamaiso ka nako e telele.
Ka bokhutšoanyane, ho sa tsotellehe mefokolo e itseng, li-sensor tsa khatello ea piezoresistive li ka eketsa melemo ea tsona le ho finyella litlhoko tsa mefuta e fapaneng ea likopo tse rarahaneng ka khetho e utloahalang le moralo o nepahetseng oa kopo. Sena se hloka hore basebelisi ba nahane ka botlalo ka lintlha tsa bohlokoa tse kang maemo a tikoloho, mefuta ea litekanyo, le ho lumellana ha mecha ea litaba nakong ea khetho le tšebeliso, le ho nka mehato e lumellanang ho netefatsa ho nepahala le botsitso ba li-sensor.
Mekhoa e mecha ho Piezoresistive Pressure Sensing Technology
Tsoelo-pele ho Thepa le Thekenoloji
Khatelo-pele e tsoelang pele ea mahlale a lintho tse bonahalang le thekenoloji e fetola tsoelo-pele ea li-sensor tsa khatello ea piezoresistive, haholo-holo tse bonahatsoang ho nts'etsopele ea lisebelisoa tse ncha tsa piezoresistive, ts'ebeliso ea theknoloji ea microfabrication, kopanyo ea matšeliso le thekenoloji ea thelefono, le ho kenyelletsoa ha mahlale a bohlale. Lisebelisoa tse ncha tsa piezoresistive tse kang li-nanomaterials le semiconductor ha li fane feela ka li-coezoresistive tse phahameng tsa piezoresistive le li-coefficients tse tlaase tsa mocheso empa hape li ntlafatsa botsitso ba kutlo, ho ntlafatsa haholo kutloisiso ea kutlo le ho nepahala.
Tšebeliso ea thekenoloji ea microfabrication e etsa hore ho be le lisebelisoa tse nyenyane, tse phahameng ka ho fetisisa tsa khatello ea maikutlo, ho fokotsa litšenyehelo le ho eketsa katleho ea tlhahiso, ho lumella li-sensor hore li sebelisoe ka mokhoa o pharaletseng oa maemo a kopo. Ho feta moo, litheknoloji tse tsoetseng pele tsa matšeliso joalo ka matšeliso a mocheso le puseletso ea zero-point drift li eketsa ho nepahala le botsitso ba litekanyo. Ho kopanngoa ha thekenoloji ea thelefono ho boetse ho etsa hore phetiso ea data e be bonolo haholoanyane, e leng ho matlafatsang haholo ho feto-fetoha ha ho kenya le ho sebelisa le ho ntlafatsa ts'ireletso ea tsamaiso.
Tsamaiso ea Bokamoso ea Khatello Sensing Technology
Theknoloji e bohlale, e kopanyang thekenoloji ea ho utloa, theknoloji ea microelectronics, le theknoloji ea k'homphieutha, li khanna li-sensor tsa khatello ea piezoresistive ho ea tsoelo-pele e bohlale haholoanyane. Sena ha se lemohe feela litekanyo tse bohlale, tlhahlobo ea data, le ts'ebetso ea tlhahlobo ea liphoso empa hape se ntlafatsa haholo ts'ebetso le boleng ba li-sensor lits'ebetsong tse sebetsang. Ka mohlala, ts'ebeliso ea li-nanomaterials e ntlafatsa haholo kutloisiso le mefuta ea litekanyo, theknoloji ea MEMS e hlokomela miniaturization ea sensor le ho fokotsa litšenyehelo, theknoloji ea ho sebetsana le matšoao a digital e ntlafatsa haholo ho nepahala ha tekanyo le botsitso, 'me theknoloji ea ho lemoha ka waelese e fana ka monyetla oa ho fetisetsa data e se nang mohala bakeng sa lisebelisoa. Lintlafatso tsena ka kopanelo li khothaletsa nts'etsopele e potlakileng le katoloso ea lits'ebetso tsa theknoloji ea sensor ea khatello ea piezoresistive.
Ho khetha Sensor e nepahetseng ea Khatello ea Piezoresistive
Lintlha tsa Khetho
Ha u khetha sensor ea khatello ea piezoresistive, lintlha tsa bohlokoa tse kang tekanyo ea tekanyo, kutloisiso le maemo a tikoloho li bohlokoa. Ho netefatsa hore letoto la litekanyo tsa sensor e khethiloeng le koahela sebaka se hlokahalang sa khatello ho bohlokoa ho qoba ho feta meeli ea ts'ebetso le ho baka liphoso tsa tekanyo. Sensitivity ke ntlha e 'ngoe ea bohlokoa, e amang ka ho toba ho nepahala ha tekanyo; ka hona, hoa hlokahala ho khetha sensor e nang le kutloisiso e nepahetseng bakeng sa litlhoko tsa ho nepahala ha kopo. Ntle le moo, maemo a tikoloho joalo ka mocheso, mongobo le ho thothomela le ona a ka ama ts'ebetso ea sensor, e leng ho etsang hore ho be bohlokoa ho khetha li-sensor tse ka ikamahanyang le maemo a tikoloho a ts'ebeliso e itseng.
Ho khetha sensor ea khatello ea piezoresistive e loketseng kopo e itseng ho boetse ho hloka ho nahana ka lintlha tse ling tse kang boholo, boima ba 'mele le litšenyehelo. Mohlala, lits'ebetso tsa taolo ea indasteri hangata li hloka li-sensor tse nang le mefuta e mengata ea litekanyo, kutlo e phahameng, le bokhoni bo matla ba ho thibela tšitiso, athe lisebelisoa tsa bongaka li etelletsa pele ho nepahala ha tekanyo e phahameng, botsitso bo botle, le tšebelisano e ntle ea bioloji. Li-sensor tsa sebaka sa lisebelisoa tsa elektroniki tsa likoloi li hloka ho kopana, ho ba bobebe, ho mamella mocheso o phahameng, 'me li se ke tsa sisinyeha, athe li-sensor tsa sebaka sa sefofane li hloka ho nepahala, botsitso le ho hanyetsa mahlaseli a phahameng haholo. Ka hona, ho utloisisa le ho hlahloba litlhoko tse khethehileng tsa kopo e 'ngoe le e' ngoe le ho khetha mohlala o loketseng ka ho fetisisa oa khatello ea khatello ea piezoresistive ho bohlokoa bakeng sa ho netefatsa ts'ebetso e nepahetseng ea tsamaiso le botšepehi ba nako e telele.
Nako ea poso: Mar-12-2024