Isubiramo muri make ya Litiyumu Niobate Crystal nuburyo bukoreshwa - Igice cya 5: Gushyira mu bikorwa ingaruka za piezoelectric ya LN Crystal

Isubiramo muri make ya Litiyumu Niobate Crystal nuburyo bukoreshwa - Igice cya 5: Gushyira mu bikorwa ingaruka za piezoelectric ya LN Crystal

Litiyumu niobate kristal ni ibikoresho byiza bya piezoelectric hamwe naimitungo ikurikira:ubushyuhe bwo hejuru bwa Curie, coeffisente yubushyuhe buke bwingaruka za piezoelectric, coefficente ya elegitoronike ya elegitoronike, gutakaza dielectric nkeya, imiterere ihamye yumubiri na chimique, imikorere myiza yo gutunganya, kandi byoroshye gutegura ingano nini na kristu nziza.Ugereranije nibisanzwe bikoreshwa piezoelectric kristal ya quartz,LNkristuifite hejuruumuvuduko w'ijwiKurigutegura ibice byinshi byinshyi, birashobora rero gukoreshwagukoraresonator, transducer, gutinda umurongo, gushungura, nibindi. zikaba zikoreshwa cyane mubice bya gisivili byaitumanaho rigendanwa, itumanaho rya satelite, gutunganya ibimenyetso bya digitale, TV, radio, radar, kumva kure,n'akarere ka gisirikare k'amashanyaraziingamba zo guhangana, fuze, kuyobora,n'ibindi..

ByinshiPorogaramu ya LNni hejuru ya acoustic wave filter (SAWF).Kuva mu myaka ya za 70,midfrequency SAWF ikozwe muri LNkristu yakoreshejwe cyane mumashusho ya tereviziyo yamabara, terefone idafite umugozi, ibyuma bya elegitoroniki bigenzura, nibindi.Since ya 1980, itumanaho rya terefone ryahindutse riva kuri 2G rija kuri 5G, kandi terefone igendanwa igomba kuba ihuza inyuma,aba bazanye akwiyongera kubisabwaSAWF. Niba eumurongo wumurongo ukenewesmuyunguruzi ebyiri, buri terefoneubushakeukeneye ibirenga ijanaSAWF. Mostse SAWF ikozwe muri LN orlithium tantalite kristu. LN kristu irazwi cyane mubikoresho bya SAWF hamwe naindishyi z'ubushyuheigishushanyo (TCSAW).

Kuri piezoelectric progaramu, ibigizeLNkristu ifite uruhare runini kumuvuduko wijwi, kandi intera ihindagurika igomba kugenzurwa cyane. Bkuberako ubushyuhe bwa Curie bwumva cyane kristaliste, bityoitni Byakunze Gukoreshwa Kuri Kuranga Ihuzabikorwa.Mubyongeyeho, indangarubuga imwe ya kristu izagira ingarukayayoIbikoresho bya piezoelectric.TNi yo mpamvu,urufunguzotekinikeical ibisobanuro bya LN kristal ikoreshwa muri pibikoresho bya iezoelectric birimoeubushyuhe bwa Curie,indangarugero,n'imbere yo gutatanya imbere,nibindi .. Muri kristu, ibyoimashinis hamwe nuburebure burebure ntabwo byunvikanainengearibyo mu gipimontoya cyane kurenza uburebure. LN kristu yujuje ibisabwa byaamashanyaraziPorogaramu nibita “acousticicyiciro LNkristu ”.

Icyerekezo cyo guca icyiciro cya acousticLNkristu ifitanye isanoyayoPorogaramu yihariye.Gukata Y-axisLNkristu ifite coefficente ya elegitoronike yo hejuru, arikoifite bikegusaba kubera kwishima gukabije kwakirwa.<1014> gukata kristu ifite ubushake buke bwumubiri kandi ikoreshwa cyane(TCSAW ni imwe mu ngero). Icyerekezo cya<1014>, Y-umurongoKuzungurukaku isaha 127.86 ° akuzenguruka X-umurongo.Izi kristu za LN nibakunze kwita 128 ° Y.LNkristu.Byongeye,LNkristus hamwe no gukata inguni64 ° Y na 41 ° Y.nibikwiranye no gutegura ibicuruzwa byinshi.Kugeza ubu,ingano yaamashanyaraziLNyageze kuri santimetero 6.

Mubyongeyeho, Lewis yatangaje ingaruka za pyroelectric yaLNkristu mugutegura ibikoresho bya acoustic yumurongo wa 1982, ugasanga ingaruka za pyroelectric yaLNkristu iganisha ku kurimbuka kwa electrode na kristu, bishobora guhagarikwa hakoreshejwe uburyo bwo kurwanya ibyuma bigufi birwanya amashanyarazi.Mu 1998, Standifer n'abandi.yakoresheje uburyo bwo kugabanya imiti kugirango yongere urumuri rwaLNkristu inshuro 1000, itezimbere ubuziranenge bwumurongo muto kandi mwiza mugihe cyo gufotora, no kongera kristu. 'simiyoboro irenze1× 105 inshuro.Ubu buryoirindesibyangiritse kuri electrode y'umusarabasbiterwa n'ingaruka za pyroelectric mugikorwa cyo gutunganya ubushyuhe bwaihejuru ya acoustic ibikoresho.UwitekaLNwafer yateguwe nubu buryo yitwa “umukara LNicyoByakoreshejwe cyane muriSAWF.

LN Crystal-WISOPTIC LN晶体

Kirisiti nziza ya LN ikorerwa munzu ya WISOPTIC (www.wisoptic.com)


Igihe cyo kohereza: Mutarama-18-2022