Khoom keeb kwm:
Keeb kwm ntawm pulse oximeters hnub rov qab mus rau xyoo 1970, thaum thawj pulse oximeter prototypes pib tshwm sim. Nrog rau kev txhim kho thev naus laus zis thiab kev nce qib ntawm kev lag luam khoom siv kho mob, pulse oximeters tau maj mam ua kom raug, txav tau yooj yim thiab ntse. Hais txog kev txhim kho ntawm PCBA thev naus laus zis, nrog kev nce qib txuas ntxiv ntawm cov tshuab semiconductor, cov txheej txheem tsim khoom ntawm PCBA kuj tau txhim kho zoo heev. Niaj hnub nimno pulse oximeter PCBA txais SMT siab heev (nto mount technology) thiab txheej txheem sib dhos, ua rau cov cuab yeej ruaj khov thiab txhim khu kev qha.
Khoom specifications:
Qhov kev daws teeb meem pulse oximeter no siv SIC8833 nti, cov qauv pob yog QFN32, ntxiv rau cov khoom siv hluav taws xob peripheral auxiliary execution circuit, thiab tsim thiab tsim los ntawm cov kev pab cuam microcontroller. Lub pulse oximeter PCB sib dhos tuaj yeem ua tiav cov haujlwm hauv qab no:
Ua hauj lwm voltage: 2 AA alkaline roj teeb.
Quiescent tam sim no: tsawg dua 10μA.
Ntshav oxygen saturation (SPO2) daws teeb meem: 1%.
Cov ntshav oxygen saturation (SPO2) qhov tseeb: thaj tsam ntawm 70% txog 100%, ± 2%.
Pulse rate (PR) daws teeb meem: 1bpm.
Pulse rate (PR) qhov tseeb: 30BPM ~ 250BPM ntau yam, qhov tseeb sib txawv Tsawg dua lossis sib npaug rau ± 2BPM lossis 2% (qhov twg ntau dua).
Zaub kev taw qhia: Plaub-sided switching muaj nuj nqi, cov kev taw qhia zaub tuaj yeem xaiv los ntawm nias lub pob.
Ua haujlwm tam sim no: tsawg dua 30mA.
Roj teeb lub neej: ntau tshaj 20H.
Txoj kev sib txuas lus: Bluetooth, WiFi.
Cov txheej txheem tsim khoom:
Kev tsim cov txheej txheem ntawm pulse oximeter (PCBA) suav nrog ntau cov kauj ruam tseem ceeb, suav nrog kev txiav txim siab ntawm schematics thiab layout drawings nyob rau hauv lub tsim theem, kev yuav khoom, tsim nyob rau hauv lub PCB manufacturing txheej txheem, zus tau tej cov luam cathodes, photolithography, etching, drilling, thiab lwm yam. Cov txheej txheem, SMT nti thev naus laus zis los muab cov khoom sib txuas ntawm PCB, cov kab sib txuas hauv theem sib dhos, kev teeb tsa ntawm lub plhaub, kev sim, kev debugging kom ntseeg tau tias kev ua haujlwm ib txwm muaj ntawm txhua txoj haujlwm, ntim cov txheej txheem, thiab kev tswj xyuas thiab kev soj ntsuam zoo.
Cov khoom lag luam phiaj cov neeg siv khoom pawg:
Lub hom phiaj cov neeg siv khoom ntawm pulse oximeter PCB sib dhos feem ntau suav nrog cov tuam txhab kho mob, tsev kho mob, tsev kho mob, cov neeg siv khoom thiab lwm lub tsev kho mob. Cov cuab yeej siv kho mob yog cov neeg siv khoom tseem ceeb, thiab lawv xav tau PCBA ua cov khoom tseem ceeb los tsim cov khoom siv pulse oximeter. Cov tsev kho mob thiab chaw kho mob yog cov neeg siv khoom ncaj qha ntawm pulse oximeters los saib xyuas cov neeg mob cov ntshav oxygen saturation thiab cov ntaub ntawv mem tes. Cov neeg siv ib leeg tuaj yeem yuav tsev pulse oximeters rau kev saib xyuas tus kheej, tshwj xeeb tshaj yog rau cov neeg muaj mob ua pa lossis mob plawv.
Peb lub Hoobkas BQC:
Peb lub Hoobkas hauv pem teb yog kev ua haujlwm tshwj xeeb thiab ua haujlwm tau zoo nyob rau hauv uas cov neeg ua haujlwm ua haujlwm zoo ua ke los xyuas kom meej cov khoom zoo thiab kev tsim khoom. Nws yog ib puag ncig uas muaj cov cuab yeej technology thiab kev tsim kho tshiab los muab cov neeg siv khoom nrog cov kev pabcuam zoo hauv Circuit Board los ua ke.
FAQ:
1. Yuav ua li cas xaiv cov khoom siv PCB?
Kev xaiv ntawm cov khoom siv hauv PCB yuav tsum muaj qhov sib npaug ntawm kev ua kom tau raws li cov qauv tsim, ntau lawm, thiab tus nqi. Cov qauv tsim muaj xws li cov khoom siv hluav taws xob thiab cov khoom siv tshuab.
2. Yuav ua li cas kom tsis txhob Gordon cuam tshuam?
Lub tswv yim yooj yim kom tsis txhob muaj kev cuam tshuam ntau zaus yog kom txo qis kev cuam tshuam ntawm cov teeb liab hluav taws xob ntau zaus, uas yog hu ua crosstalk. Koj tuaj yeem nce qhov kev ncua deb ntawm high-speed signals thiab analog signals, los yog ntxiv hauv av.
tiv thaiv / shunt kab nyob ib sab ntawm cov teeb liab analog. Kuj xyuam xim rau lub suab nrov cuam tshuam los ntawm cov av digital mus rau hauv av analog.
3. Yuav ua li cas los daws qhov teeb meem ntawm kev ncaj ncees nyob rau hauv high-ceev tsim?
Lub teeb liab kev ncaj ncees yog qhov tseem ceeb ntawm kev sib piv impedance. Txoj kev daws teeb meem yog cia siab rau kev txiav tawm thiab kho cov kab hluav taws xob topology.
Cim npe nrov: pulse oximeter pcb los ua ke, Tuam Tshoj, manufacturers, hoobkas, customized
