nkhani

Giovanni D'Amore adakambirana za kugwiritsidwa ntchito kwa zowunikira za impedance ndi zida zaukadaulo kuti ziziwonetsa zida za dielectric ndi maginito.
Tidazolowera kuganiza za kupita patsogolo kwaukadaulo kuchokera ku mibadwo yama foni am'manja kapena ma semiconductor kupanga ma node.Izi zimapereka kupita patsogolo kothandiza kwachidule koma kosadziwika bwino pakupangitsa matekinoloje (monga gawo la sayansi yazinthu).
Aliyense amene wachotsa TV ya CRT kapena kuyatsa magetsi akale adziwa chinthu chimodzi: Simungagwiritse ntchito zida zazaka za zana la 20 kupanga zamagetsi zazaka za zana la 21.
Mwachitsanzo, kupita patsogolo kofulumira kwa sayansi ya zinthu ndi nanotechnology kwapanga zida zatsopano zokhala ndi mikhalidwe yofunikira kuti imange ma inductors apamwamba kwambiri, ochita bwino kwambiri komanso ma capacitor.
Kupanga zida zogwiritsira ntchito zidazi kumafuna kuyeza kolondola kwamagetsi ndi maginito, monga kuloledwa ndi kuvomerezeka, pamayendedwe osiyanasiyana ogwiritsira ntchito komanso kutentha.
Zida za dielectric zimagwira ntchito yofunika kwambiri pazigawo zamagetsi monga capacitors ndi insulators.Kukhazikika kwa dielectric kwa zinthu kungasinthidwe mwa kulamulira mapangidwe ake ndi / kapena microstructure, makamaka ceramics.
Ndikofunikira kwambiri kuyeza mphamvu ya dielectric ya zida zatsopano koyambirira kwa gawo lachitukuko kuti munene momwe zingakhalire.
Mphamvu zamagetsi zazinthu za dielectric zimadziwika ndi chilolezo chawo chovuta, chomwe chimakhala ndi zigawo zenizeni komanso zongoganizira.
Mbali yeniyeni ya dielectric constant, yomwe imatchedwanso kuti dielectric constant, imayimira mphamvu ya chinthu chosungira mphamvu pamene ikugwiritsidwa ntchito kumunda wamagetsi. , zomwe zimapangitsa kuti zikhale zothandiza kwa ma capacitor apamwamba kwambiri.
Zida zokhala ndi ma dielectric ocheperako zitha kugwiritsidwa ntchito ngati zotetezera zothandiza pamakina otumizira ma siginecha, ndendende chifukwa sangathe kusunga mphamvu zambiri, potero zimachepetsa kuchedwa kwa ma siginecha kudzera pamawaya aliwonse omwe amatsekeredwa ndi iwo.
Gawo lolingalira la chilolezo chovuta limayimira mphamvu zomwe zimatayidwa ndi zida za dielectric m'munda wamagetsi.Izi zimafuna kuyang'anira mosamala kuti zisawononge mphamvu zambiri mu zipangizo monga ma capacitors opangidwa ndi zida zatsopano za dielectric.
Pali njira zosiyanasiyana zoyezera dielectric constant.Njira yofananira ya mbale imayika zinthu zomwe zikuyesedwa (MUT) pakati pa ma electrode awiri.Chiwerengero chomwe chikuwonetsedwa mu Chithunzi 1 chimagwiritsidwa ntchito poyesa kulephera kwa zinthuzo ndikuchitembenuzira ku chilolezo chovuta, chomwe. amatanthauza makulidwe a zinthu ndi dera ndi m'mimba mwake wa elekitirodi.
Njirayi imagwiritsidwa ntchito makamaka pakuyeza kwafupipafupi.Ngakhale kuti mfundoyi ndi yosavuta, kuyeza kolondola kumakhala kovuta chifukwa cha zolakwika za kuyeza, makamaka kwa zipangizo zotsika kwambiri.
Chilolezo chovuta chimasiyanasiyana ndi mafupipafupi, choncho chiyenera kuyesedwa pafupipafupi.
Mayeso a dielectric material test fixture (monga Keysight 16451B) ali ndi ma electrode atatu.Awiri mwa iwo amapanga capacitor, ndipo chachitatu amapereka electrode yotetezera.Kuteteza electrode ndikofunikira chifukwa pamene magetsi akukhazikitsidwa pakati pa ma electrode awiri, mbali ya magetsi magetsi adzadutsa mu MUT yomwe yaikidwa pakati pawo (onani Chithunzi 2).
Kukhalapo kwa gawo ili lamphepete kungayambitse kuyeza kolakwika kwa dielectric constant wa MUT. Elekitirodi yoteteza imatenga zomwe zikuyenda m'mphepete mwa nyanja, potero kumapangitsa kuti muyeso ukhale wolondola.
Ngati mukufuna kuyeza zida za dielectric za chinthu, ndikofunikira kuti muyese zinthu zokhazokha komanso palibe china chilichonse.Pachifukwa ichi, ndikofunikira kuwonetsetsa kuti chitsanzo cha zinthucho chimakhala chathyathyathya kwambiri kuti athetse mipata ya mpweya pakati pake ndi electrode.
Pali njira ziwiri zokwaniritsira izi.Choyamba ndicho kugwiritsa ntchito maelekitirodi a filimu woonda pamwamba pa zinthu zomwe ziyenera kuyesedwa.Chachiwiri ndicho kupeza chilolezo chovuta poyerekezera mphamvu pakati pa ma electrode, omwe amayezedwa kukhalapo ndi kusakhalapo. za zipangizo.
Elekitirodi ya alonda imathandiza kuwongolera kuyeza koyezera pafupipafupi, koma imatha kusokoneza gawo lamagetsi pamagetsi apamwamba kwambiri. Oyesa ena amapereka ma dielectric material fixtures okhala ndi ma elekitirodi apang'ono omwe amatha kuwonjezera kuchuluka kwa mafupipafupi a njira yoyezera iyi.Mapulogalamu amathanso kumathandiza kuthetsa zotsatira za fringing capacitance.
Zolakwa zotsalira zomwe zimayambitsidwa ndi zokonza ndi zowunikira zimatha kuchepetsedwa ndi dera lotseguka, chigawo chachifupi ndi kubwezeredwa kwa katundu.Ona ofufuza a impedance apanga-ntchito iyi yobwezera, yomwe imathandiza kupanga miyeso yolondola pamtunda wambiri.
Kuwunika momwe katundu wa zipangizo za dielectric amasinthira ndi kutentha kumafuna kugwiritsa ntchito zipinda zoyendetsedwa ndi kutentha ndi zingwe zosatentha.
Monga zida za dielectric, zida za ferrite zikuyenda bwino, ndipo zimagwiritsidwa ntchito kwambiri pazida zamagetsi monga zida zopangira ma inductance ndi maginito, komanso zigawo za osintha, maginito amagetsi ndi ma suppressors.
Makhalidwe ofunika kwambiri a zipangizozi akuphatikizapo kutsekemera ndi kutayika pa maulendo ovuta kwambiri ogwiritsira ntchito.
Mofanana ndi zipangizo za dielectric, kutsekemera kwa maginito a maginito ndi khalidwe lovuta lomwe limafotokozedwa m'magawo enieni komanso ongoganizira.Nthawi yeniyeni imayimira mphamvu ya zinthu zomwe zimayendetsa maginito, ndipo mawu ongoganizira amaimira kutayika kwa zinthuzo.Zida zokhala ndi maginito apamwamba amatha kukhala amagwiritsidwa ntchito kuchepetsa kukula ndi kulemera kwa maginito system.Chigawo chotayika cha maginito permeability chikhoza kuchepetsedwa kuti chikhale chogwira ntchito kwambiri muzogwiritsira ntchito monga ma transformers, kapena kuwonjezereka mu ntchito monga kutchinga.
Kuthekera kovutirako kumatsimikiziridwa ndi kutsekeka kwa inductor komwe kumapangidwa ndi zinthuzo.Nthawi zambiri, zimasiyanasiyana pafupipafupi, motero ziyenera kudziwika pafupipafupi. fixture.Pazinthu zochepa zotayika, gawo la gawo la impedance ndilofunika kwambiri, ngakhale kuti kulondola kwa muyeso wa gawo nthawi zambiri sikukwanira.
Kuthekera kwa maginito kumasinthanso ndi kutentha, kotero makina oyezera amayenera kuwunika molondola mawonekedwe a kutentha pamitundu yosiyanasiyana.
Kuthekera kovutirapo kungatengedwe poyezera kutsekeka kwa maginito.Izi zimachitidwa ndi kukulunga mawaya ena mozungulira zinthuzo ndikuyezera kutsekeka komwe kumakhudzana ndi kutha kwa waya.Zotsatira zimatha kusiyanasiyana malinga ndi momwe waya amalangidwira komanso kulumikizana. mphamvu ya maginito ndi malo ozungulira.
Maginito oyesera a maginito (onani Chithunzi 3) amapereka makina ozungulira amodzi omwe amazungulira coil ya toroidal ya MUT. .
Ikagwiritsidwa ntchito molumikizana ndi impedance/material analyzer, mawonekedwe osavuta a coaxial fixture ndi toroidal MUT amatha kuwunikidwa molondola ndipo amatha kufalikira pafupipafupi kuchokera ku 1kHz mpaka 1GHz.
Cholakwika chomwe chimayambitsidwa ndi njira yoyezera chikhoza kuthetsedwa musanayambe kuyeza.Zolakwa zomwe zimayambitsidwa ndi impedance analyzer zikhoza kuyesedwa kupyolera mu kuwongolera zolakwika kwa nthawi zitatu.Pamafupipafupi, kutsika kwa capacitor calibration kungapangitse kulondola kwa gawo.
Chokonzekeracho chingaperekenso gwero lina la zolakwika, koma inductance iliyonse yotsalira ikhoza kulipiridwa poyesa kukonza popanda MUT.
Mofanana ndi muyeso wa dielectric, chipinda cha kutentha ndi zingwe zosagwira kutentha zimafunikira kuti muwunikire mawonekedwe a kutentha kwa maginito.
Mafoni a m'manja abwino, machitidwe apamwamba kwambiri othandizira oyendetsa galimoto ndi ma laputopu othamanga onse amadalira kupita patsogolo kosalekeza kwa teknoloji yambiri. kugwiritsidwa ntchito.
Kupita patsogolo kwaposachedwa mu sayansi ya zinthu ndi nanotechnology kwapangitsa kuti zitheke kupanga zida zokhala ndi dielectric ndi maginito kuposa kale. amaikidwa.
Zida zoganiziridwa bwino ndi zokonzera zimatha kuthana ndi mavuto ambiriwa ndikubweretsa miyeso yodalirika, yobwerezabwereza komanso yogwira ntchito ya dielectric ndi maginito ya zinthu zakuthupi kwa ogwiritsa ntchito omwe alibe ukatswiri weniweni m'magawo awa.Zotsatira zake ziyenera kukhala kutumizidwa mwachangu kwa zida zapamwamba ponseponse. Electronic ecosystem.
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Werengani chowonjezera chathu chapadera chokondwerera chaka cha 60 cha Electronic Weekly ndikuyembekezera tsogolo la mafakitale.
Werengani kope loyamba la Electronic Weekly pa intaneti: September 7, 1960. Tasanthula kope loyamba kuti musangalale nalo.
Werengani chowonjezera chathu chapadera chokondwerera chaka cha 60 cha Electronic Weekly ndikuyembekezera tsogolo la mafakitale.
Werengani kope loyamba la Electronic Weekly pa intaneti: September 7, 1960. Tasanthula kope loyamba kuti musangalale nalo.
Mvetserani ku podcast iyi ndikumvetsera kwa Chetan Khona (Mtsogoleri wa Makampani, Vision, Healthcare ndi Science, Xilinx) akukamba za momwe Xilinx ndi makampani a semiconductor amachitira ndi zosowa za makasitomala.
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