Coaxial hloov yog passive electromechanical relay siv los hloov RF signals ntawm ib channel mus rau lwm qhov.Cov keyboards no tau siv dav hauv cov teeb liab routing cov xwm txheej uas yuav tsum tau muaj ntau zaus, lub zog siab thiab kev ua haujlwm siab RF.Nws kuj yog feem ntau siv nyob rau hauv RF xeem systems, xws li kav hlau txais xov, satellite kev sib txuas lus, kev sib txuas lus, lub hauv paus chaw nres tsheb, avionics, los yog lwm yam kev siv uas yuav tsum tau hloov RF signals ntawm ib kawg mus rau lwm tus.
Hloov chaw nres nkoj
Thaum peb tham txog coaxial keyboards, peb feem ntau hais tias nPmT, uas yog, n ncej m pov, qhov twg n yog tus naj npawb ntawm input ports thiab m yog tus naj npawb ntawm cov zis ports.Piv txwv li, RF hloov nrog ib qho chaw nkag thiab ob qhov chaw tso zis yog hu ua SPDT/1P2T.Yog tias qhov hloov RF muaj ib qho kev tawm tswv yim thiab 14 qhov tawm, peb yuav tsum xaiv RF hloov ntawm SP14T.
Hloov cov parameter thiab cov yam ntxwv
Yog tias lub teeb liab yuav tsum tau hloov ntawm ob lub kav hlau txais xov kawg, peb tuaj yeem paub tam sim ntawd xaiv SPDT.Txawm hais tias qhov kev xaiv tau raug nqaim rau SPDT, peb tseem yuav tsum tau ntsib ntau yam tsis raug muab los ntawm cov tuam ntxhab.Peb yuav tsum ua tib zoo nyeem cov kev txwv no thiab cov yam ntxwv, xws li VSWR, Ins.Loss, kev sib cais, zaus, hom kev sib txuas, lub zog muaj peev xwm, qhov hluav taws xob, kev siv hom, davhlau ya nyob twg, qhia, tswj Circuit Court thiab lwm yam kev xaiv tsis.
Ntau zaus thiab connector hom
Peb yuav tsum txiav txim siab qhov ntau zaus ntawm qhov system thiab xaiv qhov tsim nyog coaxial hloov raws li qhov zaus.Qhov siab tshaj plaws kev khiav hauj lwm zaus ntawm coaxial keyboards tuaj yeem ncav cuag 67GHz, thiab sib txawv ntawm coaxial keyboards muaj ntau zaus ua haujlwm.Feem ntau, peb tuaj yeem txiav txim siab ua haujlwm zaus ntawm coaxial hloov raws li hom connector, lossis hom connector txiav txim siab qhov ntau zaus ntawm coaxial hloov.
Rau 40GHz daim ntawv thov scenario, peb yuav tsum xaiv 2.92mm connector.SMA connectors feem ntau yog siv nyob rau hauv ntau zaus nyob rau hauv 26.5GHz.Lwm cov khoom siv feem ntau, xws li N-lub taub hau thiab TNC, tuaj yeem ua haujlwm ntawm 12.4GHz.Thaum kawg, BNC connector tsuas yog ua haujlwm ntawm 4GHz.
DC-6/8/12.4/18/26.5 GHz: SMA connector
DC-40 / 43.5 GHz: 2.92mm connector
DC-50/53/67 GHz: 1.85mm connector
Muaj peev xwm
Hauv peb daim ntawv thov thiab xaiv cov cuab yeej, lub zog muaj peev xwm feem ntau yog qhov tseem ceeb ntawm qhov ntsuas.Lub zog hluav taws xob ntau npaum li cas tuaj yeem tiv taus feem ntau yog txiav txim siab los ntawm kev tsim kho tshuab ntawm qhov hloov, cov ntaub ntawv siv, thiab hom connector.Lwm yam tseem ceeb kuj txwv lub zog muaj peev xwm ntawm qhov hloov, xws li zaus, kev khiav hauj lwm kub thiab qhov siab.
Qhov hluav taws xob
Peb twb paub lawm feem ntau ntawm cov tsis tseem ceeb ntawm coaxial hloov, thiab kev xaiv ntawm cov nram qab no tsis yog nyob ntawm tus neeg siv lub nyiam.
Lub coaxial hloov muaj ib qho electromagnetic coil thiab hlau nplaum, uas xav tau DC voltage los tsav qhov hloov mus rau txoj kev RF.Cov hom hluav taws xob siv rau kev sib piv coaxial hloov yog raws li hauv qab no:
Coil voltage ntau yam
5VDC 4-6VDC
12VDC 13-17VDC
24VDC 20-28VDC
28VDC 24-32VDC
Tsav hom
Hauv kev hloov, tus neeg tsav tsheb yog ib qho khoom siv hluav taws xob uas hloov RF cov ntsiab lus ntawm ib txoj hauj lwm mus rau lwm qhov.Rau feem ntau RF keyboards, ib lub solenoid valve yog siv los ua cov khoom sib txuas ntawm RF hu.Thaum peb xaiv qhov hloov pauv, peb feem ntau ntsib plaub ntau hom tsav.
Failsafe
Thaum tsis muaj kev tswj hluav taws xob sab nraud raug siv, ib qho channel ib txwm nyob.Ntxiv cov khoom siv hluav taws xob sab nraud thiab hloov mus xaiv cov channel sib xws;Thaum qhov hluav taws xob sab nraud ploj mus, qhov hloov pauv yuav hloov mus rau qhov kev coj ua ib txwm muaj.Yog li ntawd, nws yog ib qho tsim nyog yuav tsum muab cov khoom siv hluav taws xob txuas ntxiv DC kom hloov mus rau lwm qhov chaw nres nkoj.
Latching
Yog hais tias lub latching hloov yuav tsum tau tswj nws lub xeev hloov, nws yuav tsum tau txuas ntxiv txhaj tam sim no kom txog rau thaum ib tug mem tes DC voltage hloov mus hloov lub tam sim no switching xeev.Yog li ntawd, qhov chaw latching tsav tuaj yeem nyob hauv lub xeev kawg tom qab lub hwj huam mov ploj lawm.
Latching Self Cut-off
Qhov hloov pauv tsuas yog xav tau tam sim no thaum lub sijhawm hloov pauv.Tom qab kev hloov pauv tiav, muaj qhov tsis siv neeg kaw tam sim no hauv qhov hloov pauv.Lub sijhawm no, qhov hloov pauv tsis muaj tam sim no.Uas yog hais tias, cov txheej txheem hloov pauv yuav tsum muaj qhov hluav taws xob sab nraud.Tom qab kev ua haujlwm ruaj khov (tsawg kawg 50ms), tshem tawm qhov hluav taws xob sab nraud, thiab qhov hloov pauv yuav nyob twj ywm ntawm cov channel teev tseg thiab yuav tsis hloov mus rau qhov qub channel.
Nquag Qhib
Hom kev ua haujlwm no SPNT tsuas yog siv tau.Yog tias tsis muaj kev tswj hwm qhov hluav taws xob, tag nrho cov kev hloov pauv tsis yog conductive;Ntxiv cov khoom siv hluav taws xob sab nraud thiab hloov mus xaiv cov channel tshwj xeeb;Thaum qhov hluav taws xob sab nraud me me, qhov hloov pauv rov qab mus rau lub xeev tias tag nrho cov channel tsis ua haujlwm.
Qhov txawv ntawm Latching thiab Failsafe
Failsafe tswj fais fab raug tshem tawm, thiab qhov hloov pauv hloov mus rau qhov qub kaw channel;Lub Latching tswj voltage raug tshem tawm thiab tseem nyob rau ntawm cov channel xaiv.
Thaum muaj qhov yuam kev tshwm sim thiab lub zog RF ploj mus, thiab qhov hloov pauv yuav tsum tau xaiv rau hauv ib qho channel tshwj xeeb, Failsafe hloov tau raug txiav txim siab.Hom no kuj tuaj yeem xaiv tau yog tias ib qho channel siv tau ntau thiab lwm cov channel tsis siv ntau, vim tias thaum xaiv ib qho channel, qhov hloov pauv tsis tas yuav muab cov tsav hluav taws xob thiab tam sim no, uas tuaj yeem txhim kho lub zog ua haujlwm.
Post lub sij hawm: Dec-03-2022