Qhov tseem ceeb ntawm kev txuam ntawm ultrasonic transducer thiab tshuab hluav taws xob ultrasonic
Cia lub ultrasonic transducer thiab lub tshuab hluav taws xob ultrasonic tsav ua lub zog muab hluav taws xob thiab cov ultrasonic pwm koom tes los ua tiav cov khoom siv ultrasonic tuaj yeem raug xa mus ua kev sib txuam rau luv. Txij li qhov cuam tshuam ntawm kev txuam ntawm kev ua tau zoo ntawm tag nrho lub tshuab yog kev txiav txim siab, qhov tseem ceeb ntawm kev txuam tsis tuaj yeem siv ntau. Cov kev txiav txim siab tseem ceeb rau kev sib txuam yog lub capacitance ntawm ultrasonic transducer, tom qab los ntawm zaus ntawm transducer.
Nws yuav tsum nco ntsoov tias lub tshuab hloov ultrasonic nws tus kheej tsis yog lub zog tsim hluav taws xob, nws tsuas yog lub zog hloov khoom siv hluav taws xob. Nws hloov lub zog hluav taws xob rau lub suab hluav taws xob (lub zog siv tshuab). Hauv qab qhov kev xav tias qhov kev tawm tswv yim (tsav lub zog) thiab cov khoom tso tawm (amplifier, ultrasonic pwm) tau zoo sib xws, nws tuaj yeem hloov (tso zis) ntau lub zog.
Cov lus qhia muab piv rau qhov sib txuam ntawm cov ultrasonic transducer thiab lub zog ultrasonic. Yog tias qhov tso zis ntsuas tau zoo tab sis kev sib txuam ntawm cov tswv yim tsis zoo, qhov hloov pauv tsis muaj zog thiab lub vuam tsis muaj zog. Yog tias qhov tso zis piv tsis zoo tab sis cov kev sib txuam ntawm cov khoom siv tau zoo, lub tshuab hloov pauv yuav dhau lawm, ua rau lub nti tawg, tawg, tawg, ntsia hlau tawg, txhuas tawg lossis hlawv lub raj fais fab ntawm lub thawv fais fab. Piv txwv li, yog tias lub tsheb sib tsoo ntawm cov tsuj roj hauv nruab nrab, lub cav yuav tsum tau yooj yim.
Ultrasonic transducer
Muaj plaub yam tseem ceeb rau txoj kev sib txuam ntawm cov ultrasonic transducer thiab tsav fais fab kev tsav tsheb, namely impedance txuam, zaus sib txuam, lub zog hluav taws xob, thiab lub zog ua kom sib luag.
Zaus txuam yog qhov tseem ceeb heev. Qhov no vim hais tias ultrasonic transducer tsuas tuaj yeem ua haujlwm ntawm nws cov resonance zaus, yog li lub zog tsav khoom, lub zog, thiab lub vuam tuag (lub taub hau cuab yeej) yuav tsum tau ua haujlwm ntawm txhua txhua zaus. Feem ntau hais lus, Peb vam tias qhov sib txawv no tsis tshaj exceed 0.1khz feem ntau, thiab nws zoo dua yog tias nws tuaj yeem me dua. Peb pom zoo tias qhov tsawg zaus ntawm txoj kev sib piv vuam tuag (vuam taub hau) yog qis dua qhov vibrator zaus txog 0.1khz (cov teeb liab tsawg zaus). Hauv lwm lo lus, yog tias qhov zaus ntsuas los ntawm lub teeb liab me ntawm lub qub vibrator yog 14.85 khz, nws yog qhov zoo tshaj plaws los ntsuas qhov zaus tom qab txuas cov pwm rau 14.75 khz.
Nyob rau tib lub sijhawm, nws yuav tsum tau txiav txim siab tias tom qab lub tshuab hluav taws xob ultrasonic txuas nrog lub tshuab raj thiab tuag lub taub hau, resonance zaus ncov ntawm lub system ua ntse heev, uas yog, bandwidth yog nqaim heev, cov neeg kho tshuab tsis zoo yog loj heev , thiab kev hloov pauv me ntsis yuav ua rau cuam tshuam nrog lub siab. Loj nce. Qhia hauv kev tsav tsheb fais fab yog lub hwj huam hluav taws xob (qhov cub siv hluav taws xob loj) yog qhov loj heev lossis dhau los tiv thaiv. Yog hais tias lub tshuab txiav tawm thaum lub sijhawm no, nws yuav ua rau nti misalignment, nti nti lossis tawg ntawm lub hau ntswj.
Lub zog sib txuam thiab qhov cuam tshuam tsawg kawg nkaus coj mus rau hauv tus account tias lub vuam ultrasonic ua haujlwm nyob rau hauv qhov khoob, qhov hloov pauv loj heev, yuav tsum muaj hluav taws xob txaus thaum lub sijhawm vuam, thiab qhov tsawg kawg nkaus yuav tsum tau tswj thaum tsis muaj load. Txwv tsis pub, raws li tau hais ua ntej, yog tias qhov nkag siab dhau lawm thaum tsis muaj qhov thauj khoom, lub tshuab hloov mus yuav raug puas ntsoog. Lub hwj chim yeej' t mus nce thaum lub nra, thiab nws tsis zoo siv yog tias lub vuam tsis muaj zog.
