Attenuator yog Nqe lus piav qhia, yam ntxwv, daim ntawv thov

Cov txheej txheem:

Attenuator yog Nqe lus piav qhia, yam ntxwv, daim ntawv thov
Attenuator yog Nqe lus piav qhia, yam ntxwv, daim ntawv thov

Video: Attenuator yog Nqe lus piav qhia, yam ntxwv, daim ntawv thov

Video: Attenuator yog Nqe lus piav qhia, yam ntxwv, daim ntawv thov
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Lub attenuator classic yog ib qho yooj yim, cov khoom tsis muaj zog. Nws lub luag haujlwm tseem ceeb yog kom ua tau zoo attenuate lub teeb liab tsis hloov nws cov duab. Nyob rau hauv lub tshav pob ntawm high zaus, lub universal attenuator yuav siv tau raws li ib tug match unit. Nyob rau hauv cov ntaub ntawv ib txwm, cov khoom yog nthuav nyob rau hauv daim ntawv ntawm ib tug classic voltage divider. Capacitors thiab microcircuits tau muab zais rau hauv rooj plaub ntawm lub cuab yeej. Yog tias tsim nyog los txo cov teeb liab ntawm qhov sib txawv, ces cov keyboards discrete lossis adjustable li yuav tsum tau ntxiv rau tag nrho lub voj voog.

coaxial attenuator muaj
coaxial attenuator muaj

Kev piav qhia

Controlled attenuator yog universal simplex hom thaj qaum. Nws yog siv nyob rau hauv rooj plaub thaum koj yuav tsum ua kom lub teeb liab ntawm lub fiber-optic kev sib txuas lus kab qis dua. Xws li cov chav nyob tsuas yog qhov tsis tseem ceeb hauv cov ntaub ntawv hauv zos thiab qaum qaum teb, nrog rau cov kab hauv xov tooj cua. Lawv siv yog tsim nyog nyob rau hauv ntau yam kev ntsuas. Nrog rau cov cuab yeej no, cov kws tshaj lij tuaj yeem ua taucalibrate fais fab ntsuas uas twb muaj lawm, nrog rau txiav txim siab qhov rhiab heev ntawm tus txais.

Attenuators yog cov khoom siv ntau yam uas tuaj yeem ua rau lub teeb liab tuaj nrog qhov tsawg kawg nkaus rov qab (qhov siab tshaj 70 dB). Cov nyhuv no yog ua tiav vim cov qauv tsim. Phab ntsa attenuators yog qhov txawv los ntawm cov hauv qab no tsis:

  • Long service life.
  • zoo attenuation stability.
  • Yooj yim siv.
  • Compact dimensions.
  • kev ntseeg siab.
  • yam tsawg kawg rov qab xav.
  • Wide kub ntau.
  • kev ua qauv
    kev ua qauv

Kev faib tawm

Txawm hais tias qhov yooj yim pom tseeb, cov yam ntxwv ntawm attenuators feem ntau muab faib ua ob peb pawg. Cov kws tshaj lij txheeb xyuas cov npe ntawm qhov tseem ceeb:

  • ntau zaus.
  • Lub zog thiab qhov hluav taws xob.
  • Tag nrho tus lej ntawm cov zis theem.
  • Ntau yam ntawm cov khoom siv.

Nyob ntawm qib ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob niaj hnub tau muab cais ua qhov siab-voltage thiab qis-voltage. Kev khiav hauj lwm zaus ntawm cov khoom sib txawv los ntawm lub teeb teeb liab mus rau tam sim no ncaj qha. Txij li thaum cov attenuators tau siv los ntawm cov kws tshaj lij hauv ntau qhov kev khiav hauj lwm voltages, lub hauv paus ntsiab lus txuas los ntawm cov pa resistors, coils thiab capacitors mus rau fiber ntau optic li thiab microwaves.

Cov qauv tsim
Cov qauv tsim

Ntau yam

Cov kws tshaj lij feem ntau tshawb xyuas cov attenuators, vim tias tsuas yog kev ua haujlwm ntawm cov khoom no tso cai kom tsis txhob muaj overloads loj hauv chav siv tau txais cov qauv. Ntawm kev muag khoom koj tuaj yeem pom cov cuab yeej siv thoob ntiaj teb uas sib piv nrog rau txhua qhov analogues nrog qhov ntsuas qhov ntsuas qis. Tab sis muaj cov qauv uas tus neeg siv tuaj yeem kho nws tus kheej ntawm txhua qhov ntsuas.

Nyob rau hauv thawj rooj plaub, ib qho tshwj xeeb iav lim, ib doped LED los yog ib tug huab cua sib txawv. Cov khoom yog tam sim no nyob rau hauv lub cable raws li ib tug absorbing lim. Tus kws tshaj lij tuaj yeem tsim kho qhov tshwj xeeb ntawm qhov kho qhov muag LED ntawm cov kab sib kis. Pawg no feem ntau yog mounted nyob rau hauv lub qhov (socket) vaj tse. Hom attenuator thiab nws cov connectors tuaj yeem yog ib qho (feem ntau nws yog SC).

Kho kom haum attenuation units yog siv rau hauv cov khoom ntsuas zoo. Txhawm rau tswj qhov sib piv, koj tuaj yeem siv ob txoj kev xaiv tshaj plaws. Nyob rau hauv thawj rooj plaub, tus tswv tau muab lub sijhawm los ua kev hloov kho cov cuab yeej rau qhov sib txawv ntawm huab cua. Qhov kev xaiv thib ob tso cai rau koj los cuam tshuam qhov ntawm cov kab hluav taws xob kho qhov muag uas yog npaj rau kev sib kis teeb liab.

Multifunctional attenuator
Multifunctional attenuator

yam tseem ceeb

Cov neeg tsim khoom tau raug siv los txiav txim siab tshwj xeeb ntawm cov lej, yog li koj tuaj yeem txiav txim siab sai lub hom phiaj ntawm cov attenuators:

  • Sib dhos raws li cov xov tooj cua sib cais.
  • Kev txheeb xyuas teeb tsa thiab siv khoom siv.
  • Cov khoom uas nqus tauzog.
  • Polarized.
  • Electronically tswj attenuators.
  • txwv cov qauv.

Kev tshuaj xyuas thiab siv cov khoom siv tau nquag siv los ntawm cov kws tshaj lij rau kev ntsuas ntsuas ntsuas kev ua haujlwm ntawm cov tshuab ua haujlwm. Txwv cov qauv tiv thaiv cov teeb liab hauv qab qhov zaus ntawm kev hla dhau lub waveguide system.

Yuav luag txhua chav nyob, tshwj tsis yog cov khoom ruaj khov, tuaj yeem tswj tau yooj yim siv ntau yam hluav taws xob hluav taws xob uas tau sim dua hauv chav kuaj. Cov khoom lag luam zoo li no tsuas yog qhov tsis tseem ceeb nyob rau hauv rooj plaub uas kev hloov kho phau ntawv tseem tsis muaj vim li cas.

Multifunctional khoom rau cov kws tshaj lij
Multifunctional khoom rau cov kws tshaj lij

txiaj ntsig

Ntau yam khoom zoo ntawm optical attenuators tau ua kom lawv nquag siv hauv kev tsim cov tshuab fiber ntau zoo. Cov txiaj ntsig tseem ceeb suav nrog:

  • Yooj yim thiab yooj yim rau nruab.
  • Compact size.
  • Ob qhov kev tsim kho tau zoo.
  • Kev ua haujlwm kub zoo heev rau kev siv hauv qhov chaw huab cua (-65 txog +80 ° C).
khoom siv hauv tsev
khoom siv hauv tsev

qauv tsim

Txhua tus qauv ntawm cov attenuators uas ua haujlwm hauv xov tooj cua ntau yog qhia los ntawm tsab ntawv loj "D", ua raws li cov lej. Vim li no, cov kws tshaj lij tuaj yeem txiav txim siab sai sai rau qeb thiablub hom phiaj ntawm cov khoom. Cov lej txiav txim siab lub hom phiaj ntawm chav tsev. Classical optical khoom raug cim nrog kev sib xyaw "OD1".

Daim ntawv thov

Lub input attenuator yog qhov yooj yim tshaj plaws thiab pheej yig tshaj tus txais ntawm tus nqi. Nws tsim yog txawv los ntawm nws simplicity thiab logic. Peb cov resistors yog siv los ua cov khoom tseem ceeb, tab sis qee zaum yuav muaj peb lub capacitors, uas yog tsim los kom faib cov teeb liab zoo. Txoj haujlwm nyuaj tshaj plaws yog xaiv qhov damping parameter ntawm chav tsev.

Cov ntaub ntawv tseem ceeb muaj cov ntaub ntawv hais tias cov qauv niaj hnub ntawm attenuators muaj peev xwm nthuav dav ntau yam ntawm cov neeg txais tau zoo. Tab sis tsuas yog cov kws paub txog xov tooj cua amateurs nkag siab qhov tseeb tias koj yuav tsum tsis txhob delude koj tus kheej nrog rau txoj cai no. Dynamic ntau yam muaj ob lub ntsiab lus tseem ceeb uas txawv ntawm ib leeg. Ib tug pa receiver muaj peev xwm txais tsis tau tsuas yog qaug zog, tab sis kuj muaj zog signals. Lawv yuav tsum poob nyob rau hauv lub bandwidth ntawm lub lim, uas muaj feem xyuam rau qhov yooj yim xaiv. Nyob rau hauv qhov kev tshwm sim ntawm qhov tsawg kawg nkaus nce, tus txais yuav tsuas overload.

Yog tias tus neeg siv xav tau txais cov cim tsis muaj zog los ntawm ib qho chaw nres tsheb, ces tus attenuator tuaj yeem siv tau, tab sis txawm tias nws tsis tuaj yeem lav tias qhov txiaj ntsig yuav zoo li qhov xav tau. Qhov laj thawj tseem ceeb yog kev cuam tshuam muaj zog uas cuam tshuam tsis zoo rau txoj hauv kev siab. Hauv qhov xwm txheej zoo li no, kev rov pib dua cov cuab yeej tsis tuaj yeem zam tau.

Pom zoo: