Piezoelectric Quartz Crystal
Ib qho siv lead ua quartz yog cov khoom piezoelectric uas yuav ua rau muaj qhov sib luag ntawm qhov kev nyuaj siab uas siv rau nws. Rau daim ntawv thov, ib lub quartz ntuj tsim tau kom raug txiav nyob rau hauv cov duab ntawm ib tug nyias plate ntawm rectangular los yog kheej li lub qe uniform ntawm tuab tuab. Txhua qhov siv lead ua tau muaj peb lub luaj ntawm cov looj - Kev kho qhov muag, peb lub tsho hluav taws xob OX1, OX2, thiab OX3 nrog rau 120 degree nrog txhua tus, thiab peb cov khoom siv taus OY1, OY2 thiab OY3 thiab ntawm 120 degree sib. Cov neeg kho tshuab khoos phom yuav tsum nyob ntawm cov ces kaum ntawm lub qhov hluav taws xob. Qee qhov tsis muaj qhov txiav txim siab ntawm qhov siv lead ua rau daim ntawv thov
· Lub kaum ntse ntse ntawm qhov wafer hlais los ntawm cov khoom siv los ua quartz
· Plate thickness
· Dimension ntawm lub phaj
· Txhais tau ntawm kev txhim kho
Cov nyhuv Piezoelectric
Lub XY axis ntawm piezoelectric Crystal thiab nws cov txheej txheem txiav tawm hauv daim duab hauv qab no.
XY Axes ntawm Piezoelectric Crystal
Cov kev taw qhia, puav leej mus rau lub ntsej muag loj tshaj, yog txoj kab txiav uas raug xa mus.
Yog tias qhov kev ntxhov siab siv nyob rau ntawm cov lus qhia ntawm kev siv fais fab (X-axis), ib qho kev sib txuas ntawm lub tshuab Y-axis, uas yog kev xaav rau X-axis. Zoo sib xws, yog hais tias muaj qhov sib txuas ntawm cov Y-axis, hluav taws xob yuav raug tsim tawm ntawm lub ntsej muag ntawm cov crystal, perpendicular mus rau X-axis uas yog ntawm cov ces kaum rau cov Y-axis.
Ib co ntawm cov ntaub ntawv uas tau txais cov txiaj ntsig piezo-hluav taws xob yog quartz siv lead ua, Rochelle ntsev, barium titanate, thiab lwm yam. Qhov tseem ceeb ntawm cov dej no yog tias lawv muaj peev xwm ua tau siab thiab thermal lub peev xwm, kev muaj peev xwm ntawm kev siab ntawm kev sib tw, qis qis, thiab kev ua haujlwm zoo, thiab lwm yam.
Ib lub tshuab piezoelectric transducer tej zaum yuav raug siv hauv ib qho ntawm ntau hom raws li qhia hauv daim duab hauv qab no.
Piezoelectric Crystal
Piezoelectric Transducer
Lub hauv paus ntsiab lus ntawm piezoelectric transducer yog tias ib qho kev quab yuam, thaum tso npe ntawm cov quartz siv lead ua, ua hluav taws xob tsub rau ntawm qhov chaw siv lead ua. Qhov nqi li no yuav hu ua piezoelectricity. Piezo hluav taws xob yuav txhais tau tias cov hluav taws xob polarization uas ua los ntawm cov neeg kho tshuab hom ntawm tej chav kawm ntawm cov nplais. Tus nqi ntawm cov nqi them yuav raug rau cov feem ntawm qhov kev hloov ntawm quab yuam ua ntawv thov. Raws li cov nqi them me me, tus nqi zog amplifier yuav tsum tau thiaj li tsim ib qho hluav taws xob tso tawm loj txaus kom ntsuas. Tus ntaus ntawv no kuj paub tias yuav tsum tau mechanically txhav. Piv txwv li, yog tias ib tug quab yuam ntawm 15 kiloN raug muab rau cov transducer, nws tsuas yog deflect mus rau ntau tshaj ntawm 0.002mm. Tab sis cov lus teb tso tawm yuav tsum siab li 100KiloHz.Qhov proves tias tus ntaus ntawv zoo tshaj plaws rau kev ntsuas dynamic.
Daim duab qhia txog piezoelectric transducer nrog cov piezoelectric siv lead ua ntxig nruab nrab ntawm ib lub hauv paus thiab cov quab yuam summing neeg. Yog hais tias ib tug quab yuam yog siv rau ntawm qhov chaw nres nkoj siab, tib lub zog yuav poob rau ntawm tus neeg koom siab. Yog li qhov sib txawv ntawm cov neeg yuav raug tsim los ntawm cov khoom siv lead ua vim nws qhov khoom ntiag tug. Qhov kev ua hluav taws xob yuav tsum tau ua kom ncav rau qhov ntau ntawm cov neeg ua haujlwm thov.
Piezoelectric Transducer
Piezoelectric Transducer tuaj yeem ntsuas siab nyob rau tib txoj kev a quab yuam lossis ib qho kev ntsuas tau raug ntsuas. Rau kev ntsuas tsis tshua muaj siab, kev vibration ntawm tus nqi yuav tsum raug them rau. Lub siab ntsuas quartz disc pawg tuaj siab lub siab los ntawm ib lub diaphragm thiab nyob rau sab nraud ntawm qhov teeb meem no, qhov kev tiv thaiv kab mob uas ua raws li los ntawm ib qho kev pabcuam quartz.
Daim ntaub ntawv
1. Vim nws cov lus teb zoo heev, nws yog feem ntau siv raws li tus iav accelerometer, qhov twg cov zis yog nyob rau hauv qhov kev txiav txim ntawm (1-30) mV ib qhov kev nrawm nrawm.
2. Cov cuab yeej no feem ntau yog tsim los siv raws li lub voj voos kheej ua ntej kom tau qis qis thiab kev yuam kom nruj tau.
3. Siv tau rau kev ntsuas kev quab yuam, kev tawm tsam thiab kev tawm nyob rau hauv cov nqe lus ntawm voltage.
Zoo
1. Cov lus teb siab heev.
2. Ua tus kheej generating, thiaj li tsis xav tau sab nraud los.
3. Siv yooj yim los siv raws li lawv muaj qhov loj me me thiab kev ntsuas loj.
4. Barium titanate thiab quartz tuaj yeem ua rau txhua lub cev thiab daim ntawv. Nws kuj muaj lub dielectric loj tas li. Lub axial axis yog xaiv los ntawm kev taw qhia txog kev taw qhia txog kev taw qhia.
LTRASONIC transducer tuaj yeem kho ua koj daim ntawv thov, txuam tus qauv hom thiab muab kev pab rau koj.
