Taw qhia thiab lub hauv paus ntsiab lus ntawm transducers
Taw qhia rau Ultrasonic Transducers:
Ib qho transducer yog cov khoom siv hluav taws xob uas hloov lub zog los ntawm ib daim ntawv mus rau lwm qhov. Cov txheej txheem ntawm kev hloov lub zog los ntawm ib daim ntawv mus rau lwm tus yog hu ua kev hloov chaw.
Ulducers hloov pauv hluav taws xob ntawm lub zog hluav taws xob rau hauv cov kev co. Qhov kev hloov pauv hluav taws xob no tuaj yeem ua tiav los ntawm cov ceramics (raws li tau qhia hauv daim duab hauv qab no) lossis cov ntaub ntawv magnetostrictive. Piezoelectric ceramics yog qhov tseem ceeb ntawm transducers.
Lub sensor yuav tsum muaj yuav nyob ntawm daim ntawv thov. Ntau yam yuav tsum muaj kev sib haum xeeb thiab muab cov haujlwm tseem ceeb. Yog li ntawd, tsis muaj cov txheej txheem ntawm cov lus qhia uas tuaj yeem npog txhua qhov yuav tsum tau ua, thiab muaj ntau txoj kev sib txawv kom ua tiav lub hom phiaj tib yam.
Los ntawm ib qho kev pom zoo, kev ua haujlwm ntawm transducer tsuas yog kwv yees hauv txoj kev dav dav. Qhov no yog vim tias cov yam ntxwv ntawm cov ceramics feem ntau yog nyob ntawm cov haujlwm ua haujlwm, suav nrog qhov kub taub hau, hluav taws xob ua kom sov, thiab lub sijhawm. Cov kev ua haujlwm no tuaj yeem cuam tshuam ib leeg, thiab qhov cuam tshuam ntawm cov mob no feem ntau tsis yog tus cwj pwm. Ib qho ntxiv, muaj ntau yam ntxwv ntawm cov ceramics ntawm cov ceramics yog orthotropic thiab tuaj yeem sib txawv ntawm ib leeg piezoelectric ceramics thiab nruab nrab ntawm piezoelectric tej hub batches. Ib qho ntxiv, kev sib cuam tshuam ntawm ntau qhov kev cuam tshuam sib xyaw (xws li ntawm cov xov uas yuav nyuaj rau cov pa hluav taws xob tau siv rau cov cua txias tsuas yog muaj kwv yees li kev kwv yees. Yog li no, feem ntau cov qauv txheej txheem koom nrog kev sim sim.
Ua haujlwm ua haujlwm ntawm ultrasonic transducer:
Ulducers ultrasonic tuaj yeem faib ua transmitters, tau, thiab transorivers raws li lawv cov haujlwm, raws li muaj ib qho piv txwv, cov neeg caij nyoog (FR) ntawm lub transmitter yog tsim los thov Rau cov cim hluav taws xob ntawm cov chaw ua haujlwm ze rau cov kev ua haujlwm ntau, raws li muaj nyob hauv daim duab 2, txhawm rau txhawm rau txhawm rau kom muaj kev sib raug zoo. Ntawm qhov tsis sib xws, cov neeg rov tsim kho zaus zaus (fa) Kev ua haujlwm ntau zaus ntawm Transceiver yog tsim ntawm resonant zaus (FA) ntawm cov kev daws teeb meem, raws li qhov kev daws teeb meem, tab sis luv Kev tshawb nrhiav ntau yam.
Txhawm rau kom tau cov ultrasonic tsis tau muaj txiaj ntsig los ntawm cov khoom siv lossis cov khoom siv roj (xws li hauv cov cua lossis dej haus kom sib phim los ntawm ib qho kev sib txuam acoustic. Lub suab nrov thiab acoustic impedance tus yam ntxwv ntawm cov tshuaj yeeb zoo yog raws li hauv qab no:
Noj cov cua ultrasonic transducers ua ib qho piv txwv, cov acoustic impedance ntawm piezoelectric ceramics yog li 35 m2 ∙ / mg / mg / mg / mg / m2 ∙ / m2. Yog li ntawd, acoustic matching txheej ua ib qho tseem ceeb ntawm ultrasonic transducers, muab tso rau ntawm piezoelectric ceramics thiab huab cua kom phim lawv lub zog acoustic thiab tau zoo hloov ultrasonic lub zog rau hauv huab cua.
Qhov zoo tshaj plaws acoustic impedance tus nqi rau cov khoom sib txuam ntawm ib qho cua tshuab hluav taws xob yog qhov nyuaj rau cov khoom siv acoustic nrog qis dua 1 mrayl thiab ruaj khov. Tam sim no, feem ntau siv acoustic txuam txheej khoom siv yog ib qho khoom siv ua los ntawm polymer matrix thiab cov hmoov hollow kom ua tiav cov kev ntseeg siab thiab tsim nyog. Raws li daim ntawv thov, ultrasonic transducers tuaj yeem siv rau hauv ob qho chaw tau txais hom lossis lub pob tau txais hom. Nws yuav tsum tau sau tseg tias ultrasound transducers muaj cov yam ntxwv li qub. Thaum tsim qauv ultrasonic transducers rau kev ntsuas sib thooj, ringing txwv qhov kev ntsuas qhov tsawg kawg nkaus. Feem ntau, ib txheej damping yog siv los sai sai ntawm ultrasonic transducer mus rau lub xeev zoo li qub thiab txo cov suab nrov.
Tus qauv ntawm ultrasonic transducers:
Cov ultrasonic Piezoelectric hloov pauv tau ib lub tsev: ib txheej cib, nrog cov xaim hluav taws xob, thiab cov xaim cymbal, thiab cov hlua hlau, thiab roj carnekets; Cov cymbal array tau txais nyob sab saud lub disc piezoeltric transducer 3; Siv piezoelectric ceramic disc transducer raws li cov theem pib ultrasonic piezoelectric transducer, xa thiab tau txais ultrasonic paib; Cov cymbal array tau txais nyob rau ntawm disc piezoelectric transducer thiab ua hauj lwm ua tus ultrasonic retals sab nraum lub zog sab nraud ntawm lub disc transducer. Haum rau ultrasonic khoom siv.
Li cas los xaiv transducer:
1. Lub transducer yuav tsum muaj cov ntsiab lus tseem ceeb thiab cov zis qis impedance kom tsis txhob load cuam tshuam.
2. Lub transducer yuav tsum rhiab rau cov teeb liab xav tau thiab tsis muaj peev xwm rau cov cim tsis xav tau.
3. Lub transducer yuav tsum muaj peev xwm ua haujlwm hauv kev xeb ib puag ncig.
4. Lub transducer Circuit Court yuav tsum muaj kev tiv thaiv ntau dhau los tiv thaiv ntau dhau.
