Ultrasonic transducers hloov lub zog nrog kev txawj zoo. Lawv cov pob tshab ntawm cov khoom siv zoo thiab tsim qauv, tshwj xeeb tshaj yog thaum muaj zaus xws li 40kHz lossis 20kHz. Ntxhu Cov Khoom Siv Siv Quartz - Raws li cov muaju tab sis tsis ntev hloov mus rau Ceramics rau kev ua tau zoo dua.
Tam sim no niaj hnub niaj hnub no ua haujlwm electrostatic technology crafted los ntawm nyias hlau hlau micromache micromachining txoj kev siv rau kev siv ntau zaus. Txhua hom kev muaj peev xwm los ua kom raug - Hloov thaum ua suab nrov los ntawm kev siv cov kev ntsuas ntawm ntau yam uas yog qhov tseem ceeb.
Nkag siab ultrasonic transducer efficiency
Ultrasonic TransducerKev siv pob tshab ntawm nws lub peev xwm los hloov lub zog hluav taws xob rau hauv kev siv tshuab kev co thiab rov qab. Thaum Ntxov Piezoelectric Qauv, yug hauv xyoo 1950 siv Quartz muaju, teeb tsa theem rau cov txheej txheem hloov siab tshiab uas tau txhim kho txoj kev hloov dua siab tshiab no. Tus tshiab electrostatic variant tawm nrog silicon micromachining innovation.
Nws tau khav ntau qhov rhiab heev vim hais tias ib tug txiv hmab hlau membrane atop underaling kev ntsuas luv luv ntawm tsuas yog plaub nti, piv rau kaum ob hom kev sib cav sib ceg. Tseem, ib puag ncig kev txwv tsis pub siv lawv cov rooj plaub tsis zoo li cov khoom siv ruaj khov rau cov neeg mob nruj heev. Kev xaiv nruab nrab ntawm 40khz thiab 20kHz chav nyob yog nyob ntawm cov kev xav tau yam tsis muaj kev txi los yog qhov tseeb.
Yam cuam tshuam rau kev ua tau zoo
Kev ua tau zoo hauv ultrasonic huv hinges ntawm transducer efficiency. Raws li cov kws tshaj lij paub, qhov siab ntev - Huv huv nyob ntawm kev teeb tsa txoj cai ntawm cov khoom siv. Lawv hloov hluav taws xob rau cov tshuab ua hluav taws xob, tseem ceeb rau tsim kom muaj suab nrov uas tsis muaj kev daws teeb meem thiab sau cov cavitation npuas.
Cov npuas no yog qhov tseem ceeb; Lawv tawg tau los nqa cov kua ntoo nrog cov khoom siv. Kev tso menyuam teeb meem zoo tshaj plaws-transducers teeb dhau deb lossis kaw hinder Hwjchim Loj thiab hnav sai dua. Tsis tas li ntawd, loading muaj peev xwm tiv thaiv kev tsim kev nplua; Overloading tuaj yeem dampen ua tau zoo kawg.
Rau lub cev muaj nuj nqi, ib qho yuav tsum zoo - Qhib cov khoom siv zaus thaum tswj kev tswj hwm hauv kev tso tsheb hlau luam kom zoo nkauj tshaj plaws.
Xaiv cov khoom siv rau kev ua kom zoo tshaj plaws
Xaiv txoj cai ultrasonic transducer yog qhov tseem ceeb heev rau kev kuaj mob. Cov hlau, khob, thiab ceramics Kev ua haujlwm yooj yim ntawm cov kev sojntsuam teeb meem thaum nws tiv thaiv kev lim hiam thiab txuag lub sijhawm hauv kev kuaj xyuas.
Cov ntaub ntawv raug los ntawm cov kev ua txhaum cai ua rau kev txiav txim siab los tu, kom ntseeg tau tias kev ntseeg tau thaum txiav tsis txhob tawg. Qhov tsis zoo sib txawv yuav tsum muaj hom kev hloov pauv tshwj xeeb; Ib txhia ntes me me flaws nrog paimed array tshuab thaum lwm tus ntsuas ntshiab - txiav cov teeb meem saum npoo av. Nco ntsoov: Cov Khoom Taw Qhia Hom Kev Soj Ntsuam Xaiv - Cov khub hlau nrog cov kev loj, cov tshuaj yeeb zoo thov tsawg rau qhov tseeb.
Kev txiav txim siab transducer
Hauv kev tsim qauv ultrasonic transducer, hwj chim thiab loj ntawm lub tank qhia Watt kev xav tau kev xav tau. Rau cov tso tsheb hlau luam dua 25 nkas loos, tsom rau 25 watts rms ib nkas loos. Qhov hnyav nrog ntsug threaded qhov tau txais txiaj ntsig los ntawm sab - Mounted Transducers; Qhov kev teeb tsa no pab kom txhua txoj kev nqhis ua tau zoo.
Rau kev tso tsheb hlau luam sib sib zog nqus nrog cov khoom me me, hauv qab - Cov chav nyob ua tau zoo yog qhov ua tau zoo ntawm cov khoom huv - tso cov khoom tab sis tsawg dua yog li ntau dua li sab nraud - thiab hauv qab - mounts yuav tsim nyog nyob ntawm no. Kev Ua Haujlwm Ncaj Nrig Ua Haujlwm Zoo Tshaj Plaws Ua Haujlwm Zoo Tshwj Tawv Tshwj Pheej Yig Ua Mutting Lawv qhov kev cuam tshuam los ntawm kev cuam tshuam ntawm qhov chaw tiaj tiaj; Cov immersibles kov cov hmoov av ntawd zoo dua vim kev tsim qauv tso cai rau kev tso cai nyob ib ncig ntawm es tsis txhob nyob ntawm lawv. Lub zog fais fab yuav tsum tau ntsuas qhov chaw nyob-ntawm theem - theem AC xaiv rau qee cov scenarios tsis muaj kev phom sij yog tias hluav taws xob tsis zoo.
Zaus piv rau daim ntawv thov
Rau ultrasonic transducers, zaus txuam yog qhov tseem ceeb. Cov cuab yeej siv no tau txiav rau kev siv tshwj xeeb los ntawm lawv cov emission fortencies. Piv txwv li, 40kHz chav nyob yog ib qho muaj rau kev nrhiav kom paub txog sonar hauv qab dej; Lawv tuaj yeem npog cov kev deb ntau dua nrog cov suab nrov loj dua.
Hauv kev sib piv, ntau zaus nyob rau hauv cov ntau ntawm 1-10 Mhz nplua kev sim rau qhov chaw loj uas yog tsawg dua qhov nws yuav yog qhov kev ncua deb dua. Ntawm ib qho txawm tias finer nplai-ntau dua 100mHz-lub ntsiab lus hloov mus rau ultra - zaus siv cov cuab yeej siv hluav taws xob hauv xov tooj cua zoo li scanning acoustic tsom (Sam). UHF qauv qev nyiaj piezoelectric cov ntaub ntawv uas tau ua kom zoo rau cov kev co.
Npaj ib yam ntawm ultrasound cuab yeej cuam tshuam rau qhov uas koj yuav siv nws rau vim tias txhua daim ntawv thov yuav tsum muaj lwm hom tshuaj kis tau. Ib qho kev sib tw haum ntawm transducer tsim thiab nws lub hom phiaj ua kom muaj zog ua kom muaj zog thiab ntshiab txiaj ntsig txawm tias kev siv tshuaj tsw qab hauv qab hiav txwv.
Lub zog hloov siab thiab nws cov kev cuam tshuam
Txog ultrasonic huv, Zog Conversion Conversion Stited Paramount. Nws tsis yog hais txog kev tsim cov kev co; Nws yog qhov tseem ceeb uas cov vav ua kom hloov tau zoo rau hauv cov kua nruab nrab kom ua kom cov nyom lossis paug. Qhov kev sib tw sib tw tiag tiag hauv kev ua kom sib raug zoo ntawm lub ntsej muag transducer thiab kua, tsom iav li cas los ntawm kev sib koom tes.
Tsis tau muaj ntau yam kev coj ua no. Ib qho tseem ceeb ib qho yog ntub - lub tswv yim Kuv tau tshaj tawm tab sis muaj txiaj ntsig rau nws txoj haujlwm tseem ceeb ntawm no. Qhov tseem ceeb, tsis muaj kev nyiam ua kom haum ntawm cov kua thiab transducer chaw - xav tias dej craving ib cov khoom siv hydroughilic - muaj cov khoom ploj zuj zus.
Cia peb tsis quav ntsej cov xim pleev xim zoo li roj lossis teflon txawm yog; Lawv cov kua dej rov qab txo cov khoom xa tawm vibrational ho. Kev siv cov tshuaj tiv thaiv kev ntub dej los ntawm kev ntxiv cov chaw ntub dej tuaj yeem txhim kho kom muaj kev sib raug zoo li kev ua kom zoo dua ultrasound xa tawm ntawm lub tshuab mus rau murk.
Resonance yam ntxwv ntawm 40kHz qauv
Hauv ultrasonic transducer kheej kheej, 40kHz qauv sawv tawm rau lawv cov yam ntxwv ntawm cov yam ntxwv ntawm cov yam ntxwv. Lawv tsoo qhov chaw qab zib hauv kev ntxuav tu uas precision yog tus yuam sij tsis tau maj mam tuav ntawm qhov chaw huv yog qhov tseem ceeb. Ntawm qhov zaus no, tsis txhob nkag rau cov ntaub ntawv nrog lub zog txaus los rhuav tshem cov nplais me me uas tsis muaj kev puas tsuaj.
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov khoom siv hluav taws xob hloov hluav taws xob ntau dua rau 40kHz-tshwm sim hauv cov cua kub tsawg dua thiab siab dua thaum siv. Cov cwj pwm zoo li no yog qhov tseem ceeb thaum lawv pab ncaj qha rau kev ua haujlwm zoo thaum txo qhov kev sib tw ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm lub sijhawm.
20khz vs. 40kHz Kev Ua Phom Me
Nrog ultrasonic transducers, 20khz thiab 40kHz units txawv hauv kev ua tau zoo vim kev cavitation dynitation. Qis dua zaus xws li 20kHz tsim cov npuas loj dua uas muaj nrog lub zog loj dua. Qhov kev siv hluav taws xob no zoo tagnrho rau kev ua kom tawv tawv tawm ntawm qhov chaw ruaj khov tab sis tuaj yeem ua rau cov khoom huv si.
Ntawm flip tog, qhov siab - zaus hloov pauv ntawm 40kHz tsim ntau dua, tseem me dua cavitation npuas. Cov no ua rau gentler tu ua kom haum rau cov khoom sib txawv lossis cov khoom siv tsis sib haum yam tsis muaj kev pheej hmoo ua kev puas tsuaj thaum muaj kev puas tsuaj ntau dua li lub zog. Cov kws tshaj lij nrhiav ob zaus ua haujlwm zoo raws li cov tshuaj ntxuav cov neeg huv; Hloov maj mam tweaks nyob rau lub sijhawm, ntsuas kub, thiab kev ua haujlwm feem ntau txheeb cov kev ua yeeb yam twg ntawm lawv.
Piezoelectric caij tweaking
Piezoelectric keeb tweaking hauv ultrasonic transducers yog ib daim duab zoo. Nws cuam tshuam nrog kev kho cov hluav taws xob teb thov rau Quartz muaju tsis pub dhau cov khoom siv. Thaum cov hluav taws xob hloov, nws cuam tshuam li cas cov atoms dlaus thiab hloov, tsim cov tshuab thev naus laus zis uas muaj cov khoom siv tshuab siab ntau ntxiv rau cov tshev.
Txoj kev kho ntawm cov ntsiab no yuav tsum lees paub qhov tseeb; Txawm hloov me ntsis tuaj yeem ua rau muaj kev cim txhim kho lossis ua tsis tiav hauv kev ua tau zoo. Raws li cov kws paub paub zoo, ib qho muaj tseeb pizoeltric nyhuv hloov tshiab concersion -- los ntawm hluav taws xob rau cov cim acoustic thiab hloov kho vicea -- Qhov tseem ceeb rau pinpointing tsis xws luag thaum lub sij hawm ua haujlwm tag nrho yam tsis muaj pov tseg. Siab ruaj khov nyob rau hauv sib txawv tej yam kev mob zoo li kub siab dua li cov xeeb ntxwv tseem ceeb tshaj plaws rau sab saum toj - Tshaj tawm cov nyom sib txawv rau lub sijhawm.
Tswj kub thaum ua haujlwm
Nyob rau hauv cov roj thiab roj kev lag luam, qhov twg huab cua sov thiab corrosive cov ntaub ntawv muaj ntau, khoom xws li kav dej tau txais nrawm nrawm. Txhawm rau saib cov yeeb nkab tuab tsis tas ua haujlwm, tshwj xeeb ultrasonic transducer xav tau-ib qho uas tuaj yeem siv cov cua sov dua 500 degrees Celsius tau ntev. Cov cuab yeej no siv cov ntsiab lus piezoelectric tsim los tiv thaiv cov kub siab thaum tseem ntsuas qhov tseeb.
Cua txias tshuab tsis zoo tagnrho; Lawv ua cov teeb meem kev nyeem ntawv thiab tej zaum yuav tawg lawv tus kheej. Tsis tau qee cov qauv tsim tshiab tau qhia cov ntsiab lus muaj peev xwm txawm tias yog cov mob kub ntev li ntev tau txog ib hlis tsis yog (tsis siv - Tsis txhob siv.
Kev Txij Nkawm Kev Xyaum Rau Ntev
Txhawm rau kom ultrasonic transducer nyob rau hauv cov duab sab saum toj, cov tswv yuav tsum ntxuav nws ntau zaus. Cov av xws li cov roj carbon tso nyiaj thiab cov roj tuaj yeem ua rau nws cov haujlwm ua haujlwm. Hauv kev ntsuas, ua kom lub cuab yeej tsis pub dawb los ntawm cov seem yog qhov tseem ceeb rau cov txiaj ntsig raug.
Ua tib zoo ntxuav tiv thaiv kev puas tsuaj uas mob cavitation tej zaum yuav ua rau puas yooj yim lossis cov khoom muaj. Cov tshev tsis tu ncua pab tau cov teeb meem thaum ntxov rau ob lub sijhawm 20kHz thiab 40kHz qauv kom deb ntawm cov chaw hnyav uas yuav ua rau lawv.
Hanspire's ultrasonic transducers sawv tawm rau lawv txoj kev ua tau zoo, ib qho txiaj ntsig ntawm cov ntaub ntawv zoo thiab qauv tsim. Cov khoom siv hloov hluav taws xob nrog qhov tsawg kawg nkaus, vim lub xeev - ntawm - cov thev naus laus zis thev naus laus zis uas ua kom pom tseeb ntau zaus thiab cov zis sib txawv. Hansargant ua kom txhua kauj ruam yog qhov ceevfaj heev, los ntawm kev ua paj ntaub yog cov khoom siv ua kom zoo nkauj rau calibrating cov khoom kawg. Lawv xa cov xa khoom xa tuaj uas tau txais txiaj ntsig zoo hauv kev ua tau zoo hauv kev daws teeb meem los ntawm kev ua haujlwm.
Kev siv hluav taws xob ua cov kev hloov tshiab no, khij qhov pib ua tus thawj coj hauv cov kev daws teeb meem ultrasonic.