Hauv engineering scenarios xws li aerospace aerodynamic testing, multi-point pressure monitoring in chemical processes, and automotive flow field testing, engineers feem ntau ntsib cov teeb meem: unsynchronized cov ntaub ntawv los ntawm discrete sensors nyob rau hauv multi- taw tes ntsuas siab, ntxhov wiring nrog ntau yam tsis ua hauj lwm cov ntsiab lus, teeb liab distortion ntev -, cumberration} thiab ntau yam kev saib xyuas, thiab txawm tias kuaj tsis ua haujlwm lossis kev tswj xyuas cov teeb meem tshwm sim los ntawm kev ntsuas qhov sib txawv. Hauv plawv ntawm cov teeb meem no yog qhov kev txiav txim siab tseem ceeb - tsis tau xaiv cov cuab yeej ntsuas siab zoo rau ntau - cov ntawv thov: qhovsiab scanner.
Lub hauv paus ua haujlwm ntawm lub tshuab ntsuas siab
Lub tshuab ntsuas siab tsis yog qhov sib txuas yooj yim ntawm ntau qhov -point siab sensors. Xwb, nws yog ib qho kev sib koom ua ke ntau ntau -channel array- hom kev ntsuas siab muaj peev xwm ua tau zoo ntawm kev ntsuas siab, synchronized tau, teeb liab txias, analog - rau - digital conversion, digital output, thiab ntawm - kab calibration. Nws hauv paus daws qhov mob tseem ceeb ntawm kev sib cais-sensor multi-point ntsuas.
Noj 64-channel scanner ua piv txwv, cov txheej txheem ua haujlwm yooj yim tau piav qhia luv luv hauv qab no. Cov tub ntxhais muaj cov haujlwm hauv qab no: qhov tseeb pneumatic hloov pauv module, MEMS siab sensor array, multiplexer (MUX) thiab teeb liab txias chav tsev, siab -speed synchronous ADC rau cov ntaub ntawv hloov dua siab tshiab, lub ntsiab tswj thiab digital kev sib txuas lus module, thiab built-in calibration thiab ntxuav valve pawg.
System Architecture Diagram / Basic hauv paus ntsiab lus daim duab
Raws li tau piav qhia hauv cov duab saum toj no, cov txheej txheem ua haujlwm tiav yog raws li hauv qab no:
Lub siab kais dej ntawm qhov chaw ntawm cov ntawv xeem tau ntes ntau lub siab cov cim, uas yog xa los ntawm tubing mus rau 64-channel siab scanner. Los ntawm kev xaiv channel cov lus txib, cov kev ntsuas sib txuas tau ua raws cov kab ke ua haujlwm, ua kom raug ntsuas qhov ntsuas siab mus rau qhov ntsuas siab. Nyob rau hauv lub sensing caij, ib tug MEMS piezoresistive sensing nti - raws li ib tug semiconductor piezoresistive nyhuv - siv precision resistors teem nyob rau hauv ib tug Wheatstone choj ntawm silicon diaphragm los hloov siab-induced elastic deformation ntawm lub diaphragm rau hauv ib tug qaug zog analog hluav taws xob teeb liab linearly proportional rau tus nqi siab. Cov teeb liab no tau nthuav dav thiab lim los ntawm lub tshuab hluav taws xob siab-precision txias, thiab kev hloov pauv analog-to-digital tau ua tiav los ntawm kev kub ceev ADC. Tag nrho cov ntaub ntawv channel yog synchronously sampled nyob rau theem microsecond thiab normalized los ntawm lub ntsiab maub los, thiab thaum kawg kis mus rau ib tug system tau txais cov ntaub ntawv thiab ib tug tswv tsev computer rau cov ntaub ntawv ua, real-time xyuas, thiab tsom xam.
Nyob rau tib lub sijhawm, lub kaw lus tuaj yeem txuas nrog tus qauv siv lub zog siab. Lub built-in solenoid valve pawg cia li hloov cov kev khiav mus rau hauv-line xoom calibration thiab ncua calibration rau tag nrho cov channel. Nrog cov pab pawg purge valve, huv huv huv tuaj yeem qhia tau los ua kev tu hauv online ntawm lub siab tubing thiab txoj hauv kev ntws, thaum impurities thiab pa pa tawm tawm los ntawm qhov chaw nres nkoj. Qhov no ua rau cov cuab yeej kho qhov tseeb thiab kev saib xyuas niaj hnub tsis muaj kev cuam tshuam, ua rau lub kaw lus zoo haum rau kev xav tau kev tshawb fawb soj ntsuam thiab cov chaw ua haujlwm nyuaj.
Xi'an Mihui Technology Co., Ltd. muaj tag nrho - txheej txheem muaj peev xwm xws li MEMS siab nti tsim thiab prototyping kom tiav scanner sib dhos thiab kuaj. Peb muab tag nrho series ntawm 16- rau 64-channel siab scanners thiab txhawb kev tsim kho kom haum rau qhov dav-kub, tawg-pov thawj, thiab corrosion-resistant daim ntaub ntawv. Peb tuaj yeem muab cov kev daws teeb meem ntau-channel siab ntsuas raws li koj qhov kev ua haujlwm tshwj xeeb. Rau ib qho lus nug txog kev xaiv cov khoom siv lossis kev tsim qauv, thov hu rau peb pab pawg engineering rau kev txhawb nqa kev tshaj lij.
