Yog tias koj mus ntsib lub tuam txhab niaj hnub no thiab saib xyuas cov khoom siv hluav taws xob zoo heev ntawm kev ua haujlwm hauv ib lub xovtooj sib dhos, koj yuav pom ntau yam sensors ntawm cov zaub. Feem ntau ntawm cov sensors no muaj cais cov xov hlau rau qhov zoo voltage mov, hauv av thiab teeb liab. Kev siv lub zog tso cai rau lub sensor ua nws txoj haujlwm, txawm hais tias qhov kev soj ntsuam muaj cov hlau ferromagnetic nyob ze lossis xa lub teeb ci tawm los ua ib feem ntawm lub chaw ruaj ntseg. Lub tshuab hluav taws xob txo qis uas ua rau cov sensors no, zoo li lub reed hloov, tsuas yog xav tau ob lub xov hlau los ua lawv txoj haujlwm. Cov keyboards no qhib siv cov magnetic teb.
Reed Switch yog dab tsi?
Lub reed hloov tau yug los hauv 1936. Nws yog lub hlwb ntawm WB Ellwood ntawm Bell Telephone Laboratories, thiab nws tau txais nws daim ntawv pov thawj hauv xyoo 1941. Qhov hloov zoo li lub khob me me nrog cov hluav taws xob ua rau txhua qhov kawg.
Lub Reed Switch ua haujlwm li cas?
Lub tshuab hloov pauv yog muaj ob lub ferromagnetic hniav, sib cais los ntawm ob peb microns. Thaum cov hlau nplaum los ze rau cov hniav no, ob lub ntsej muag rub mus rau ib leeg. Thaum kov, cov hniav kaw qhov ib txwm qhib (NO) tiv tauj, cia hluav taws xob ntws. Qee cov reed keyboards kuj muaj qhov sib tiv tauj uas tsis yog-ferromagnetic, uas ua rau ib txwm kaw (NC) tso zis. Ib qho kev sib txuas ntawm cov hlau nplaum yuav tshem tawm qhov kev sib cuag thiab rub tawm ntawm kev sib cuag.
Kev sib cuag yog tsim los ntawm ntau yam hlau, nrog rau tungsten thiab rhodium. Qee hom txawm siv mercury, uas yuav tsum tau khaws cia rau hauv qhov kev taw qhia kom raug hloov kom raug. Ib lub hnab ntawv khob ntim nrog cov roj inert-feem ntau nitrogen- kaw cov neeg sib cuag ntawm lub siab sab hauv hauv ib qho chaw. Sealing cais cov neeg sib cuag, uas tiv thaiv corrosion thiab txhua qhov sparks uas yuav tshwm sim los ntawm kev sib cuag.
Reed Hloov Daim Ntawv Thov hauv Ntiaj Teb tiag
Koj yuav pom cov sensors hauv cov khoom siv niaj hnub xws li tsheb thiab tshuab ntxhua khaub ncaws, tab sis ib qho ntawm cov chaw tseem ceeb tshaj plaws cov kev hloov / sensor ua haujlwm yog nyob rau hauv lub tswb nrov. Qhov tseeb, tswb yog ib daim ntawv thov zoo tshaj plaws rau cov tshuab no. Lub qhov rais txav tau los yog qhov rooj hauv tsev muaj cov hlau nplaum, thiab lub sensor nyob ntawm lub hauv paus, hla lub teeb liab kom txog thaum cov hlau nplaum tshem tawm. Nrog lub qhov rais qhib - lossis yog tias ib tug neeg txiav cov xaim - lub tswb yuav nrov.
Thaum lub tswb nrov yog ib qho zoo heev siv rau reed keyboards, cov cuab yeej no tuaj yeem ua me dua. Ib qho kev hloov me me yuav haum rau hauv cov khoom siv kho mob uas tau noj hu ua PillCams. Thaum tus neeg mob nqos qhov ntsuas me me, tus kws kho mob tuaj yeem qhib nws siv cov hlau nplaum sab nraud ntawm lub cev. Qhov kev ncua no txuag lub zog kom txog rau thaum qhov kev sojntsuam raug muab tso rau kom raug, uas txhais tau hais tias cov roj teeb hauv lub nkoj tuaj yeem ua rau me dua, qhov tseem ceeb ntawm qee yam uas tau tsim los mus los ntawm tib neeg lub plab zom mov. Dhau li ntawm nws qhov me me, daim ntawv thov no kuj qhia txog qhov lawv tuaj yeem nkag siab npaum li cas, vim tias cov sensors tuaj yeem khaws cov hlau nplaum los ntawm tib neeg lub cev.
Reed keyboards tsis tas yuav muaj cov hlau nplaum ruaj khov los ua kom lawv; ib qho electromagnet relay tuaj yeem hloov lawv rau. Txij li thaum Tswb Labs pib tsim cov keyboards no, nws los li tsis muaj qhov xav tsis thoob tias kev lag luam hauv xov tooj siv reed relays rau kev tswj thiab nco ua haujlwm kom txog thaum txhua yam mus rau digital hauv 1990s. Hom relay no tsis tsim cov caj qaum ntawm peb txoj kev sib txuas lus, tab sis lawv tseem muaj nyob hauv ntau lwm daim ntawv thov niaj hnub no.
Qhov zoo ntawm Reed Relays
Lub Hall effect sensor yog ib qho khoom siv hauv xeev uas tuaj yeem ntes cov teb sib nqus, thiab nws yog ib qho kev hloov pauv rau reed hloov. Hall teebmeem yeej tsim nyog rau qee daim ntawv thov, tab sis reed keyboards feature superior hluav taws xob cais rau lawv cov khoom-lub xeev counterpart, thiab lawv fim tsawg hluav taws xob tsis kam vim raug kaw. Tsis tas li ntawd, reed keyboards tuaj yeem ua haujlwm nrog ntau yam voltages, loads thiab frequencies, raws li qhov hloov pauv ua haujlwm yooj yim raws li kev sib txuas lossis kev sib txuas. Xwb, koj yuav xav tau kev txhawb nqa circuitry kom pab Hall sensors ua lawv txoj haujlwm.
Reed keyboards feature incredibly siab ntseeg rau ib tug neeg kho tshuab hloov, thiab lawv muaj peev xwm ua hauj lwm rau billions ntawm cycles ua ntej tsis ua hauj lwm. Tsis tas li ntawd, vim yog lawv cov kev tsim vaj tse kaw, lawv tuaj yeem ua haujlwm hauv qhov chaw tawg uas muaj lub txim taws tuaj yeem ua rau muaj kev puas tsuaj loj. Reed keyboards tej zaum yuav yog cov cuab yeej qub, tab sis lawv nyob deb ntawm kev siv tsis tau. Koj tuaj yeem siv cov pob uas muaj cov hloov pauv mus rau cov ntawv luam tawm Circuit Board (PCBs) siv cov tshuab tuaj tos-thiab-qhov chaw.
Koj qhov kev tsim kho tom ntej tuaj yeem hu rau ntau yam kev sib koom ua ke thiab cov khoom sib txuas, txhua yam uas tau tshwm sim hauv ob peb xyoos dhau los, tab sis tsis txhob hnov qab hloov pauv hloov pauv hloov pauv. Nws ua tiav nws txoj haujlwm hloov pauv yooj yim hauv txoj kev ci ntsa iab. Tom qab ntau tshaj 80 xyoo ntawm kev siv thiab kev loj hlob, koj tuaj yeem tso siab rau lub reed hloov qhov kev sim thiab qhov tseeb tsim los ua haujlwm tsis tu ncua.
Post lub sij hawm: Apr-22-2024