Cov teeb meem tshwm sim ntawm ultrasonic transducers
Kev ua haujlwm ntawm ultrasonic transducer yog los hloov cov khoom siv hluav taws xob rau hauv kev siv zog (ultrasound), tom qab ntawd xa nws tawm, thiab haus ib feem me me ntawm lub hwj chim nws tus kheej.
Rau ultrasonic transducers, teeb meem kev daws teeb meem yuav tsum tau tsim los tsim ultrasonic transducer nrog kev ua haujlwm loj thiab kev siv bandwidth.
Lub tshuab hloov pauv yog muaj lub plhaub, ib txheej txheej sib txuam, ib qho piezoelectric ceramic disc transducer, rov qab, ib txoj hlua thiab ib qho khoom kis. Lub piezoelectric ceramic disc transducer yog ua los ntawm PZT-5 piezoelectric cov ntaub ntawv polarized nyob rau hauv cov kev taw qhia tuab. Mb array txais khoom muaj li 8 txog 16 Cy sensors, ob lub xov tooj hlau thiab roj av nkhaus. Kev ua haujlwm nyob deb ntawm qhov kev nthuav tawm tam sim no ntau dua 35m, qhov tso tawm ntau zaus tau txog 10kHz, thiab qhov kev kub ceev txav tau ntev-lub hom phiaj tuaj yeem raug kuaj pom.
Thaum siv ultrasonic transducers, peb kuj ntsib qee qhov teeb meem tshwm sim, piv txwv li,
1. Thaum lub ultrasonic vibrator tau ntub, koj tuaj yeem siv megohmmeter los kuaj xyuas lub ntsaws txuas nrog lub ntsuas. Txheeb xyuas lub rwb thaiv tsev tiv thaiv tus nqi los txiav txim siab qhov pib mob. Feem ntau, kev tiv thaiv rwb thaiv tsev yuav tsum muaj qhov ntau dua 5 megohms. Yog tias lub rwb thaiv tsev tiv thaiv tus nqi tsis tau nce mus txog, lub ntsuas hluav taws xob feem ntau ntub. Koj tuaj yeem tso tus hloov pauv tag nrho (tsis suav nrog cov tshuaj tsuag rau hauv qhov cub) rau hauv qhov cub thiab muab tso rau qhov kub ntawm 100 ° C rau 3 teev, lossis siv lub tshuab ziab plaub hau kom tshem tawm cov dej noo mus rau qhov tsis zoo. rau hnub tim.
2. Cov tshuab hluav taws xob hloov suab txuas hluav taws thiab cov khoom tawg ua tawg. Nws tuaj yeem soj ntsuam nrog lub qhov muag liab qab thiab megohmmeter. Feem ntau, raws li kev ntsuas kub ntxhov, tus kheej lub vibrators puas ntsoog tuaj yeem raug kaw tau yam tsis muaj kev cuam tshuam rau kev siv lwm lub vibrators.
3. Lub tshuab ntsuas qeeg tau txo qis qis. Peb lub tshuab sensor txais ob qhov kev lav lus ntawm cov txheej txheem ci thiab ntsia hlau ceev, uas yuav tsis tshwm sim nyob rau hauv ib txwm muaj mob.
4. Perforated stainless hlau kev co nto. Feem ntau, tom qab 10 xyoo ntawm kev siv tag nrho ntawm kev siv lub ntsuas cua, lub ntsej muag tshee tuaj yeem tawm tau.
5. Lub suab ua suab nrov ua rau lub suab tsis zoo, tuaj yeem tshwm sim thaum kuaj xyuas, rov ua kom lub ntsej muag lub ntsej muag lossis ua kom lub xaim lossis puas.
