Intangiriro kuri galvanometer ya laser

Scanner ya laser, yitwa kandi galvanometer ya laser, igizwe na XY optical scanning head, electronic drive amplifier na optical reflection lens. Ikimenyetso gitangwa na mudasobwa controller gitwara umutwe wa scanning wa optical unyuze muri driver amplifier circuit, bityo kikagenzura ihindagurika ry'imirasire ya laser mu ndege ya XY. Mu buryo bworoshye, galvanometer ni galvanometer yo gushakisha ikoreshwa mu nganda za laser. Ijambo ryayo ry'umwuga ryitwa high-speed scanning galvanometer Galvo scanning system. Icyo bita galvanometer gishobora kandi kwitwa ammeter. Igitekerezo cyayo cyo gushushanya gikurikiza neza uburyo bwo gushushanya ammeter. Lens isimbuza urushinge, maze ikimenyetso cya probe gisimburwa na mudasobwa -5V-5V cyangwa -10V-+10V DC signal. , kugira ngo kirangize igikorwa cyagenwe. Kimwe na sisitemu yo gushakisha indorerwamo izenguruka, iyi sisitemu isanzwe yo kugenzura ikoresha indorerwamo ebyiri zisubira inyuma. Itandukaniro ni uko moteri itwara iyi lens isimburwa na moteri ya servo. Muri iyi sisitemu yo kugenzura, hakoreshwa sensor y'aho ibintu biherereye. Igitekerezo cy'igishushanyo cya "negative feedback loop" na "negative feedback loop" birushaho kwemeza ko sisitemu ikora neza, kandi umuvuduko wo gushakisha no gushyira ibintu mu buryo bushya birushaho kugera ku rwego rushya. Umutwe w'ikimenyetso cyo gupima galvanometer ugizwe ahanini na XY scanning mirror, lens yo mu murima, galvanometer na porogaramu yo gupima ikoreshwa na mudasobwa. Hitamo ibice bihuye n'ibipimo by'urumuri hakurikijwe uburebure butandukanye bwa laser. Amahitamo ajyanye nayo arimo kandi expanders za laser beam, lasers, nibindi. Muri sisitemu yo kwerekana laser, waveform ya scanning ya optical ni vector scan, kandi umuvuduko wo gupima wa sisitemu ugena ubudahinduka bw'imiterere ya laser. Mu myaka ya vuba aha, scanners zihuta cyane zarakozwe, aho umuvuduko wo gupima ugera ku manota 45.000 ku isegonda, bituma bishoboka kwerekana animasiyo zikomeye za laser.

5.1 Ihuriro ryo gusudira rya laser galvanometer

5.1.1 Ibisobanuro n'imiterere y'aho icyuma gisudira galvanometer gihurira:

Umutwe ucunga ikirere ukoresha igikoresho cya mekanike nk'urubuga rushyigikira. Igikoresho cya mekanike kigenda kigaruka kugira ngo kigere ku gusudira imiyoboro itandukanye yo gusudira. Ubuhanga bwo gusudira bushingiye ku buhanga bwa actuator, bityo hari ibibazo nko kudakora neza, umuvuduko wo gusubiza buhoro, no kutagira imbaraga nyinshi. Sisitemu yo gupima galvanometer ikoresha moteri kugira ngo itware lens kugira ngo ihinduke. Moteri itwarwa n'umuyoboro runaka kandi ifite ibyiza byo kuba ifite ubuziranenge bwinshi, kutagira imbaraga nke, no gusubiza vuba. Iyo urumuri rumurikiwe kuri lens ya galvanometer, kunyura kwa galvanometer bihindura urumuri rwa laser. Kubwibyo, urumuri rwa laser rushobora gupima inzira iyo ari yo yose mu gice cyo gupima binyuze muri sisitemu ya galvanometer.

Ibice by'ingenzi bya sisitemu yo gupima galvanometer ni collimator yo kwagura imirasire, lensi yo gucengera, galvanometer yo gupima XY ifite umurongo wa kabiri, ikibaho cyo kugenzura na sisitemu ya porogaramu ya mudasobwa. Galvanometer yo gupima yerekeza ahanini ku mitwe ibiri ya XY galvanometer yo gupima, itwarwa na moteri za servo zigenda zisubiranamo vuba. Sisitemu ya servo ifite umurongo wa kabiri ituma galvanometer yo gupima XY ifite umurongo wa kabiri kugira ngo ihindukire ku murongo wa X-axis na Y-axis uko bikurikirana, yohereza ibimenyetso by'amabwiriza kuri moteri za servo za X na Y-axis. Muri ubu buryo, binyuze mu kugenda hamwe kwa lensi y'indorerwamo ya XY ifite umurongo wa kabiri, sisitemu yo kugenzura ishobora guhindura ikimenyetso binyuze kuri board ya galvanometer hakurikijwe icyitegererezo cy'ishusho cya porogaramu ya mudasobwa ikoresha hakurikijwe inzira yashyizweho, kandi igakomeza kwihuta mu mwanya w'akazi kugira ngo ikore inzira yo gupima.

5.1.2 Ishyirwa mu byiciro ry'imiyoboro yo gusudira ya galvanometer:

1. Ikirahuri cyo gupima imbere (lens)

Dukurikije isano iri hagati ya lens yo gupima n'icyuma gipima urumuri cya laser, uburyo bwo gupima urumuri bwa galvanometer bushobora kugabanywamo ibice bibiri: gupima imbere (Ishusho ya 1 hepfo) no gupima inyuma (Ishusho ya 2 hepfo). Bitewe n'itandukaniro ry'inzira y'urumuri iyo umuraba wa laser uhinduriwe ahantu hatandukanye (intera yo kohereza urumuri iratandukanye), ubuso bwa laser mu gihe cyo gupima urumuri bwabanje ni ubuso bwa hemispherical, nk'uko bigaragara ku ishusho y'ibumoso. Uburyo bwo gupima inyuma bugaragara ku ishusho iri iburyo. Lens yo gupima ni lens ya F-plan. Indorerwamo ya F-plan ifite imiterere yihariye y'urumuri. Mu gushyiramo uburyo bwo gukosora urumuri, ubuso bwa hemispherical bw'icyuma gipima urumuri bushobora guhindurwa kugira ngo bube bugororotse. Gupima inyuma y'urumuri bikwiriye cyane cyane gukoreshwa mu buryo busaba uburyo bwo gutunganya neza no gukora neza, nko gushyira ikimenyetso kuri laser, gusudira microstructure ya laser, nibindi.

2.Ikirahuri cyo gupima inyuma (rear focusing scanning lens)

Uko agace ko gupima kagenda kiyongera, ni ko n'ubuso bw'ikirahure cya f-theta nabwo bwiyongera. Bitewe n'imbogamizi za tekiniki n'ibikoresho, ikirahure kinini cya f-theta kirahenze cyane kandi iki gisubizo nticyemerwa. Sisitemu yo gupima galvanometer imbere ya lens ihujwe na roboti ifite axis esheshatu ni igisubizo gishoboka, gishobora kugabanya kwishingikiriza ku bikoresho bya galvanometer, gifite urwego runini rw'ubuziranenge bwa sisitemu, kandi gifite imikoranire myiza. Iki gisubizo cyakoreshejwe n'abahuza benshi. Adopt, bakunze kwita flight welding. Gusuka muri module busbar, harimo no gusukura inkingi, bifite porogaramu zo kuguruka, zishobora kongera ubugari bwo gutunganya mu buryo bworoshye kandi bunoze.

Galvanometero ya 3.3D:

Nubwo byaba ari ugusuzuma imbere cyangwa gupima inyuma, aho urumuri rwa laser rushyirwa, ntabwo rushobora kugenzurwa kugira ngo rube rufite ubushobozi bwo gupima ibintu. Ku bijyanye no gupima imbere, iyo igikoresho kigomba gutunganywa ari gito, lens ifite ubushobozi bwo gupima ibintu ifite uburebure runaka bw'ubujyakuzimu, bityo ishobora gukora gupima ibintu bifite imiterere mito. Ariko, iyo indege igomba gupimwa ari nini, ingingo zegereye impande ntiziba zigaragara kandi ntizishobora kwibanda ku buso bw'igikoresho kigomba gutunganywa kuko kirenze uburebure bw'uburebure bwa laser. Kubwibyo, iyo icyuma cya laser gikenewe kwibanda neza ahantu hose ku mpande yo gupima kandi urwego rw'ishusho ari runini, gukoresha lens ifite uburebure bw'ishusho ntishobora kuzuza ibisabwa mu gupima. Sisitemu yo gupima ibintu ifite uburebure bw'ishusho ni urusobe rw'uburyo bw'ishusho bushobora guhinduka uko bikenewe. Kubwibyo, abashakashatsi batanga igitekerezo cyo gukoresha lens ifite uburebure bw'ishusho kugira ngo ihuze itandukaniro ry'inzira y'ishusho, kandi ikoreshe lens ifite icyerekezo (beam expander) kugira ngo igende ku murongo ugororotse ku murongo w'ishusho kugira ngo igenzure aho iherereye kandi igere ku buso bugomba gutunganywa buhuze itandukaniro ry'inzira y'ishusho mu myanya itandukanye. Ugereranyije na galvanometer ya 2D, imiterere ya galvanometer ya 3D ahanini yongeramo "sisitemu ya optique ya Z-axis", kugira ngo galvanometer ya 3D ibashe guhindura neza aho ishyirwa mu bikorwa mu gihe cyo gusudira no gukora ubushuhe bwo hejuru buzunguruka, hatabayeho guhindura icyuma gitwara ibikoresho nk'imashini, nibindi nka galvanometer ya 2D. Uburebure bwa robot bukoreshwa mu guhindura aho ishyirwa mu bikorwa.