Roland Barth • SCHURTER AG Txawm hais tias koj tab tom teeb lub pas dej da dej, ua suab paj nruag, los yog ua npuas npuas, koj xav tau ib qho kev hloov rau cov haujlwm no.Txhua yam ntawm cov ntawv thov no yog tus cwj pwm los ntawm qhov sib thooj rau cov dej noo.Muaj ntau lub tshuab hloov pauv muaj peev xwm tswj tau. hom kev siv no.Ua ntej sib tham txog cov cuab yeej sib tw no, nws yuav pab tau luv luv los tshuaj xyuas cov txheej txheem uas feem ntau ua haujlwm hauv cov ntawv thov uas tuaj yeem raug ya raws.
Hloovtsim los rau cov chaw ntub dej feem ntau muaj qhov ntsuas IP67.Cov ntawv lo no yog hais txog IP code lossis ingress tiv thaiv code.IP kev ntsuam xyuas thiab ntsuas qib kev tiv thaiv los ntawm cov khoom siv hluav taws xob thiab hluav taws xob, tsis yog tsuas yog tiv thaiv dej, tab sis kuj tiv thaiv kev nkag mus, plua plav thiab Nws yog luam tawm los ntawm International Electrotechnical Commission (IEC).Nws muaj qhov sib npaug European tus qauv EN 60529.
Lub ntsiab lus ntawm tus qauv IP yog muab cov neeg siv nrog cov ncauj lus kom ntxaws txog kev ua tau zoo dua li cov ntsiab lus lag luam tsis meej xws li "waterproof" qhia.Txhua tus IP code tuaj yeem muaj txog plaub tus lej.Lawv qhia tias ua raws li qee yam kev mob. Thawj tus lej qhia txog kev tiv thaiv cov khoom. cov khoom;qhov thib ob qhia txog kev tiv thaiv cov kua ingress.Tej zaum kuj yuav muaj ib lossis ob tus lej ntxiv los qhia txog lwm yam kev tiv thaiv.Tab sis feem coob ntawm cov kev ntsuas IP yog nyob rau hauv ib lossis ob tus lej.
Rau lub hom phiaj dav dav thiab nyob ze daim ntaub ntawv ntub dej, cov cuab yeej siv dav tshaj plaws yog kev hloov kho tshuab nrog kev mus ncig.Peb ntsib lawv txhua hnub, zoo li peb tig lub teeb hauv ib chav rau lossis tawm.Lawv muaj ntau yam ntawm cov ntsiab lus siab, kev ntseeg siab. thiab ntau yam khoom.
Rau cov khoom siv hluav taws xob siv sab nraum zoov, yuav tsum muaj qhov ntsuas IP67.Qhov laj thawj yog qhov yooj yim: cov tshuab hloov pauv uas ua haujlwm raws li lub hauv paus ntsiab lus ntawm cov hlab ntsha muaj qhov txav mus. Cov dej tuaj yeem nkag mus rau hauv qhov chaw ntawm qhov chaw txav mus.Nyob rau hauv lub xub ntiag ntawm cov dej khov, dej khov. ntawm tus actuator tiv thaiv cov neeg sib cuag los ntawm kev kaw.Tej yam siv rau hauv av, plua plav, chav thiab txawm tias cov kua dej nchuav.
Nyob rau hauv cov ntaub ntawv ntawm cov keyboards thiab lwm yam neeg siv interfaces, membrane keyboards yuav siv tau thaum ya raws yog ib qho teeb meem.Cov no yog tshwj xeeb mechanical keyboards ua los ntawm silicone roj hmab thiab conductive carbon pellets los yog tsis-conductive roj hmab actuators.Through ib tug compression molding txheej txheem, ib tug angled mesh. yog tsim nyob ib ncig ntawm cov keyboard uas tawg txhua txhua lub sij hawm tus neeg siv nias ib tug yuam sij, tsim conductive kev sib cuag ntawm lub puab txheej ntawm cov khoom siv keyboard.Cov txheej txheej ntawm cov keyboard yog ib qho txuas txuas ntxiv uas tuaj yeem raug kaw kom tsis txhob ya raws los ntawm kev nkag mus rau txheej txheej uas siv tau. mechanical switches.
Tab sis tag nrho txhua yam, lub tshuab hloov pauv uas tsis muaj qhov ntsuas IP67 tsis yog tshwj xeeb rau cov chaw ntub dej.
Capacitive keyboards yog tam sim no muaj kev loj hlob sai, ib feem ntawm lawv siv nyob rau hauv smartphones.Tsis muaj mob stroke, tsis txav qhov chaw.Capacitive touchscreen panels muaj ib tug insulator, xws li iav, coated nrog ib tug pob tshab conductor, feem ntau indium tin oxide (ITO) los yog silver.Vim hais tias tib neeg lub cev kuj yog ib tug hluav taws xob conductor, kov lub nto ntawm lub screen nrog ib tug ntiv tes distors lub screen electrostatic teb, uas yuav tsum tau ntsuas raws li ib tug hloov nyob rau hauv capacitance.Different txheej txheem yuav siv tau los txiav txim qhov chaw ntawm lub kov.
Tab sis capacitive touch keyboards tsis yog thawj qhov kev xaiv rau txhua daim ntawv thov.Qee lub capacitive touchscreens tsis tuaj yeem siv los ntes cov ntiv tes los ntawm cov khoom siv hluav taws xob xws li hnab looj tes.Piv txwv li, huab cua siab lossis dej tee dej kuj tuaj yeem cuam tshuam nrog lub touchscreen electrostatic teb. Yog li ntawd capacitive Cov keyboards feem ntau tsis haum rau siv nyob ze cov pas dej da dej lossis cov pas dej da dej.
Piezo-raws li cov keyboards tsim hluav taws xob nyob rau hauv lub siab.Qhov compressive siab ntawm tus ntiv tes thawb ua rau (feem ntau disc-shaped) piezoelectric caij khoov me ntsis zoo li lub taub hau.Piezo keyboards tsim ib qho, luv luv "ntawm" mem tes, feem ntau siv rau tig rau semiconductors, xws li teb cov nyhuv transistors (FETs).Qhov sib piv rau cov tshuab hloov pauv, piezoelectric keyboards tsis muaj qhov txav mus.
Hloov raws li txoj cai piezoelectric yog tshwj xeeb tshaj yog muaj zog.Piezoelectric cov ntsiab lus (feem ntau ceramics uas muaj lead zirconate titanate los yog PZT, barium titanate los yog lead titanate) tsim ib tug hluav taws xob nqi nyob rau hauv lub siab.Qhov compressive siab ntawm tus ntiv tes thawb ua rau lub (feem ntau disc-shaped). piezoelectric caij khoov me ntsis zoo li lub taub hau.
Yog li, lub piezoelectric hloov ua ib qho, luv luv "rau" mem tes sib txawv nrog cov nqi ntawm lub siab siv.Qhov no pulse feem ntau yog siv los tig rau cov khoom siv hluav taws xob, xws li cov nyhuv transistors (FETs).Tom qab lub zog pulse dissipates, FET. tig tawm.Capacitors tuaj yeem siv los khaws cov txiaj ntsig tau los ua kom lub sij hawm tas li ntawm lub rooj vag thiab ua kom lub sijhawm ntev ntawm cov mem tes.
Nyob rau hauv sib piv rau mechanical keyboards,piezoelectric hloovtsis muaj qhov txav mus los.Nws tuaj yeem raug kaw thiab IP ntsuas txog IP69K.Qhov no feature predestines nws yuav tsum tau siv nyob rau hauv lub feem ntau tsis zoo tej yam kev mob.
Qhov no coj peb mus rau pneumatic keyboards. Tau ntau xyoo lawm, cov keyboards no tau mus rau hauv pas dej ua ke thiab spa builders vim lawv tsis siv hluav taws xob.Lawv feem ntau muaj lub caij nplooj ntoos hlav-loaded plunger uas qhib los yog kaw cov pa cua thaum tus neeg teb xov tooj nias ib lub pob.Ib qho tsis zoo ntawm cov nyees khawm pneumatic yog tias lawv cov tshuab sab hauv yuav tsum yog qhov tseeb, uas yog qhov cuam tshuam rau tus nqi.
Zoo li cov tshuab hloov pauv, pneumatic keyboards muaj cov khoom txav uas thaum kawg hnav tawm.Vim lawv tuav cov cua compressed, pneumatic keyboards yuav tsum tau saib xyuas tshwj xeeb rau sealing.Nws kuj yuav tsum tau hais ntawm no tias cov hom keyboards no tsis siv cov lus tawm tswv yim los ntawm qhov taw tes lossis lub nplhaib teeb pom kev zoo.
Ntau tus neeg tsim qauv hauv pas dej ua ke thiab spa tau paub txog cov txiaj ntsig ntawm piezoelectric keyboards.Cov khoom siv no kuj pheej yig thiab ruaj khov heev.Lawv tuaj yeem ua cov tshuaj aggressive feem ntau siv hauv cov chaw ntub dej.Deutsche Welle
Xauj cov teeb meem tshiab kawg ntawm Tsim Ntiaj Teb thiab cov teeb meem rov qab rau hauv ib qho yooj yim-rau-siv, zoo hom. Kho kom raug, sib qhia thiab rub tawm hnub no nrog cov thawj coj tsim engineering magazine.