Yuav ua li cas tswj lub zog ntawm diodes hauv kev kho mob laser tshuab?

1, Lub hauv paus ntsiab lus tseem ceeb ntawm kev tswj fais fab: kaw - voj kev tswj raws li cov yam ntxwv ntawm semiconductor
Lub zog tso zis ntawm lub laser diode yog qhov tseem ceeb tam sim no uas tau tsav electro- txheej txheem hloov kho qhov muag. Lub hauv paus ntsiab lus tseem ceeb tuaj yeem raug suav hais tias yog: ua kom muaj zog ruaj khov ntawm cov zis hluav taws xob los ntawm kev tswj xyuas meej ntawm kev tsav tsheb tam sim no thiab tiag - lub sijhawm tawm tswv yim mechanism.
Kaw lub voj tawm tswv yim mechanism
Txhawm rau tiv thaiv qhov cuam tshuam ntawm qhov kub thiab txias, kev laus, thiab lwm yam, kev kho mob laser tshuab feem ntau siv tsis siv neeg tswj fais fab (APC) tshuab. Cov txheej txheem ib txwm yog:
Kev kuaj pom lub zog kho qhov muag: Kev soj ntsuam lub sijhawm tiag tiag ntawm cov zis hluav taws xob kho qhov muag los ntawm kev tsim-hauv lossis sab nraud photodetectors (xws li PIN diodes), hloov mus rau hauv cov teeb liab hluav taws xob.
Kev sib piv yuam kev: Sib piv cov teeb liab nrhiav pom nrog tus nqi hluav taws xob preset los tsim qhov teeb meem yuam kev.
Kev hloov kho tam sim no: Tom qab qhov teeb meem yuam kev tau ua tiav los ntawm PID maub los, kev tsav tsheb tam sim no tau hloov pauv hloov pauv kom rov qab lub zog rau tus nqi teeb tsa.
Piv txwv li, hauv semiconductor laser kho cov cuab yeej, APC system tuaj yeem teb rau lub zog hloov pauv hauv 0.1 vib nas this, ua kom cov zis ruaj khov zoo dua ± 1%.
2, Cov thev naus laus zis tseem ceeb ntawm kev tswj fais fab: Ntau theem kev sib koom ua ke rau kev tswj xyuas meej
Lub hwj chim tswj kev cai rau kev kho mob laser tshuab yog nruj heev, yuav tsum tau siab precision (± 1% - ± 5%), ceev teb (microsecond theem), thiab dav dynamic ntau yam (milliwatt mus rau puas watt theem). Txhawm rau ua tiav lub hom phiaj no, kev lag luam feem ntau siv cov kev sib xyaw ua ke hauv qab no:

Kev sib xyaw ua ke ntawm cov tsav tam sim no tsis tu ncua thiab lub zog tsav tsis tu ncua
Tsav tam sim no tsis tu ncua: Muab qhov ruaj khov tam sim no los ntawm qhov siab - qhov tseeb ruaj khov tam sim no (xws li MOSFET raws li cov khoom siv hluav taws xob hloov), haum rau cov xwm txheej xws li kev sib txuas lus kho qhov muag uas xav tau kev ruaj ntseg tam sim no.
Lub zog tsav tsis tu ncua: Los ntawm kev saib xyuas lub zog kho qhov muag thiab kho qhov tam sim no rov qab los them nyiaj rau qhov kub thiab txias, nws yog qhov tsim nyog rau cov xwm txheej xws li lasers kho mob uas xav tau ntev - cov zis ruaj khov.
Hybrid hom: Hauv cov khoom siv kho mob, qhov zoo ntawm ob qho tib si feem ntau ua ke, xws li siv cov tsav tam sim no ua lub hauv paus thiab siv lub zog kaw- voj tswj los ntawm APC, uas ua kom muaj kev ruaj ntseg tam sim no thiab cuam tshuam qhov kub thiab txias.
Kev sib koom tes tswj qhov kub thiab txias
Qhov kub thiab txias yog qhov loj tshaj ntawm kev cuam tshuam hauv kev tswj fais fab. Kev kho mob laser tshuab feem ntau koom ua ke semiconductor coolers (TECs) kom nquag tswj qhov kub ntawm laser diodes los ntawm cov teebmeem thermoelectric. Piv txwv li, nyob rau hauv 808nm nyob ze -infrared laser kho cuab yeej, TEC tuaj yeem tswj qhov kub ntawm qhov sib txuas ntawm 25℃± 0.5 degree, txo lub zog hloov ntawm 80%.
Digital kaw-loop control architecture
Ib txwm simulation tswj muaj teeb meem xws li nyuaj rau kev hloov pauv thiab tsis muaj zog tiv thaiv- muaj peev xwm cuam tshuam. Niaj hnub nimno kho mob laser tshuab feem ntau siv digital PID tswj, uas yog siv los ntawm microprocessors (xws li ARM) lossis FPGA
High precision sampling: A 16 ntsis ADC ntes cov teeb liab hluav taws xob kho qhov muag ntawm tus qauv ntsuas ntawm 100kHz.
Adaptive algorithm: dynamically kho PID tsis (xws li proportional coefficient Kp, integration time Ti) raws li kev khiav hauj lwm tej yam kev mob los optimize teb ceev thiab stability.
Kev kuaj mob tsis raug: Kev saib xyuas lub sijhawm tiag tiag ntawm qhov tsis xws li tam sim no, qhov hluav taws xob, qhov kub thiab txias, thiab lwm yam, ua rau muaj kev tiv thaiv kev tiv thaiv (xws li kaw overcurrent, kub tswb).
Pulse Width Modulation (PWM) Technology
Nyob rau hauv cov xwm txheej uas yuav tsum tau cov khoom siv mem tes, xws li laser lithotripsy thiab daim tawv nqaij rejuvenation, PWM thev naus laus zis tswj qhov nruab nrab lub zog los ntawm kev kho lub voj voog ntawm cov pulses tam sim no. Piv txwv li, nyob rau hauv 1470nm laser vaporization phais, cov mem tes zaus tuaj yeem ncav cuag 10kHz, thiab lub voj voog ua haujlwm tuaj yeem hloov kho los ntawm 0.1% mus rau 100%, ua tiav kev hloov ntawm micro watt qib kev ua haujlwm zoo mus rau pua watt theem ceev txiav.
3, Cov xwm txheej ntawm daim ntawv thov: los ntawm kev phais me me rau kev zoo nkauj
Lub zog tswj thev naus laus zis ntawm laser diodes tau nkag mus rau hauv tag nrho cov kev kho mob. Cov hauv qab no yog peb yam xwm txheej:

Cov txheej txheem phais: ntsuas lub zog siab thiab siab precision
Hauv kev phais xws li tonsillectomy hauv otolaryngology thiab prostate vaporization hauv urology, 1470nm laser diode tuav lub zog tso zis ntawm 50W-100W los ntawm APC system, thaum PWM thev naus laus zis tswj lub zog mem tes kom ua tiav peb hauv ib qho txiaj ntsig ntawm "txiav + coagulation + tshuaj tua kab mob". Piv txwv li, lub zog hloov pauv ntawm qee tus qauv ntawm cov riam phais laser yog tsawg dua ± 2%, ua kom lub qhov txhab du thiab txo cov ntshav los ntawm 70%.
Rehabilitation therapy: Tsawg zog thiab ntev -lub sij hawm stability
Nyob rau hauv 808nm nyob ze -infrared laser kho cuab yeej, lub zog yuav tsum ruaj khov ntawm 0.5W-5W rau ib lub sij hawm ntev mus txuas ntxiv activates cell mitochondria thiab txhawb cov ntaub so ntswg kho. Los ntawm TEC kub tswj thiab digital PID tswj, lub cuab yeej tuaj yeem tswj hwm lub zog hloov pauv ntawm<± 1.5% during 4-hour continuous operation, significantly improving the treatment effect of chronic pain, arthritis and other diseases.
Kev zoo nkauj thiab kev phais yas: Kev sib koom ua ke ntawm Multi wavelength thiab Multi hom
Hauv cov ntawv thov xws li tshem tawm cov plaub hau laser, tawv nqaij rejuvenation, thiab tshem tawm caws pliav, cov cuab yeej yuav tsum tau hloov kho nws lub zog raws li hom tawv nqaij (xws li Fitzpatrick kev faib tawm). Piv txwv li, cov cuab yeej siv ntau yam kev zoo nkauj integrates dual wavelength laser diodes ntawm 650nm (kho epidermal) thiab 980nm (sib sib zog nqus cua sov), uas tswj ob lub hwj chim channel los ntawm ib tug APC system thiab muab cov PWM technology kom ua tau lub zog pulse gradient hloov, raws li tus kheej kev kho mob xav tau kev pab.