Isingeniso ku-laser galvanometer

Isithwebuli se-laser, esibizwa nangokuthi i-laser galvanometer, siqukethe ikhanda lokuskena le-XY optical, i-electronic drive amplifier kanye nelensi yokubonisa ukukhanya. Isignali enikezwa yisilawuli sekhompyutha ishayela ikhanda lokuskena ukukhanya ngokusebenzisa isekethe ye-amplifier yokushayela, ngaleyo ndlela ilawula ukuphambuka kogongolo lwe-laser endizeni ye-XY. Kalula nje, i-galvanometer iyi-galvanometer yokuskena esetshenziswa embonini ye-laser. Igama layo lobuchwepheshe libizwa ngokuthi i-galvanometer yokuskena esheshayo. Uhlelo lokuskena lwe-Galvo. Okubizwa ngokuthi i-galvanometer kungabizwa nangokuthi i-ammeter. Umqondo wayo wokuklama ulandela ngokuphelele indlela yokuklama ye-ammeter. Ilensi ithatha indawo yenaliti, futhi isignali ye-probe ithathelwa indawo yisignali ye--5V-5V noma ye--10V-+10V DC elawulwa yikhompyutha. , ukuqedela isenzo esinqunyiwe. Njengohlelo lokuskena lwesibuko esijikelezayo, lolu hlelo lokulawula olujwayelekile lusebenzisa izibuko ezimbili ezihoxayo. Umehluko ukuthi imoto ye-stepper eshayela leli sethi lamalensi ithathelwa indawo yimoto ye-servo. Kulolu hlelo lokulawula, kusetshenziswa inzwa yesikhundla. Umqondo wokuklama kanye ne-negative feedback loop kuqinisekisa ukunemba kwesistimu, futhi isivinini sokuskena kanye nokunemba kokubekwa okuphindaphindiwe kwesistimu yonke kufinyelela ezingeni elisha. Ikhanda lokumaka lokuskena le-galvanometer lakhiwe kakhulu ngesibuko sokuskena se-XY, ilensi yasensimini, i-galvanometer kanye nesofthiwe yokumaka elawulwa yikhompyutha. Khetha izingxenye ze-optical ezihambisanayo ngokwe-wavelengths ehlukene ye-laser. Izinketho ezihlobene nazo zifaka phakathi izandisi ze-laser beam, ama-laser, njll. Kuhlelo lokubonisa i-laser, i-waveform yokuskena kwe-optical iyi-vector scan, futhi isivinini sokuskena sesistimu sinquma ukuzinza kwephethini ye-laser. Eminyakeni yamuva nje, kuye kwathuthukiswa ama-scanner anesivinini esikhulu, ngesivinini sokuskena esifinyelela amaphuzu angu-45,000/ngesekhondi, okwenza kube nokwenzeka ukubonisa izithombe ze-laser eziyinkimbinkimbi.

5.1 Ijoyinti lokuwelda le-laser galvanometer

5.1.1 Incazelo kanye nokwakheka kwejoyinti yokuwelda ye-galvanometer:

Ikhanda eligxile ku-collimation lisebenzisa idivayisi yomshini njengeplatifomu esekelayo. Idivayisi yomshini iyahamba iye emuva naphambili ukuze kufezwe ukushintshwa kwama-weld e-trajectory ahlukene. Ukunemba kokushintshwa kuncike ekunembeni kwe-actuator, ngakho-ke kunezinkinga ezifana nokunemba okuphansi, isivinini sokuphendula okuhamba kancane, kanye ne-inertia enkulu. Uhlelo lokuskena lwe-galvanometer lusebenzisa injini ukuthwala ilensi ukuze iphambukise. Injini iqhutshwa ugesi othile futhi inezinzuzo zokunemba okuphezulu, i-inertia encane, kanye nokuphendula okusheshayo. Lapho ugongolo lukhanyiswa ilensi ye-galvanometer, ukuphambukisa kwe-galvanometer kushintsha ugongolo lwe-laser. Ngakho-ke, ugongolo lwe-laser lungaskena noma iyiphi i-trajectory ensimini yokuskena yokubuka ngohlelo lwe-galvanometer.

Izingxenye eziyinhloko zesistimu yokuskena ye-galvanometer yi-beam expansion collimator, ilensi yokugxila, i-XY two-axis scanning galvanometer, ibhodi lokulawula kanye nesistimu yesofthiwe yekhompyutha yomsingathi. I-scan-galvanometer ibhekisela kakhulu kumakhanda amabili okuskena e-XY galvanometer, aqhutshwa ama-servo motor asheshayo aphindaphindayo. Uhlelo lwe-servo olune-axis ezimbili luqhuba i-XY dual-axis scanning galvanometer ukuze iphambuke ku-X-axis kanye ne-Y-axis ngokulandelana ngokuthumela izimpawu zomyalo kuma-servo motor e-X kanye ne-Y-axis. Ngale ndlela, ngokunyakaza okuhlangene kwelensi yesibuko se-XY two-axis, uhlelo lokulawula lungaguqula isignali ngebhodi le-galvanometer ngokwesifanekiso sesithombe esisethwe ngaphambilini sesofthiwe yekhompyutha yomsingathi ngokwendlela ebekiwe, futhi luhambe ngokushesha endizeni yomsebenzi ukuze lwakhe indlela yokuskena.

5.1.2 Ukuhlukaniswa kwamajoyinti okushisela e-galvanometer:

1. Ilensi yokuskena egxile ngaphambili

Ngokusho kobudlelwano besimo phakathi kwelensi yokugxila kanye ne-laser galvanometer, imodi yokuskena ye-galvanometer ingahlukaniswa ngokuskena okugxile phambili (Isithombe 1 ngezansi) kanye nokuskena okugxile emuva (Isithombe 2 ngezansi). Ngenxa yokuba khona komehluko wendlela yokukhanya lapho umsebe we-laser uphambukile uye ezindaweni ezahlukene (ibanga lokudlulisa umsebe lihlukile), indawo egxile ku-laser ngesikhathi senqubo yokuskena yemodi yokugxila yangaphambilini iyindawo ezungezile, njengoba kuboniswe esithombeni sesobunxele. Indlela yokuskena ngemuva kokugxila iboniswe esithombeni ngakwesokudla. Ilensi eqondiwe ilensi ye-F-plan. Isibuko se-F-plan sinomklamo okhethekile wokukhanya. Ngokungenisa ukulungiswa kokukhanya, indawo egxile ku-hemispherical yomsebe we-laser ingalungiswa ibe yi-flat. Ukuskena ngemuva kokugxila kufaneleka kakhulu ezinhlelweni zokusebenza ezidinga ukunemba okuphezulu kokucubungula kanye nobubanzi obuncane bokucubungula, njengokumaka kwe-laser, ukushisela kwe-laser microstructure, njll.

2.Ilensi yokuskena egxile ngemuva

Njengoba indawo yokuskena ikhula, ukuvuleka kwelensi ye-f-theta nakho kuyanda. Ngenxa yemikhawulo yobuchwepheshe kanye nezinto ezibonakalayo, amalensi e-f-theta amakhulu abiza kakhulu futhi lesi sixazululo asamukeleki. Uhlelo lokuskena lwe-galvanometer yangaphambili yelensi oluhlosiwe oluhlanganiswe nerobhothi eli-axis eziyisithupha luyisisombululo esisebenziseka kalula, esinganciphisa ukuncika emishinini ye-galvanometer, lunezinga elikhulu lokunemba kwesistimu, futhi luhambisana kahle. Lesi sixazululo samukelwe ngabahlanganisi abaningi. I-Adopt, evame ukubizwa ngokuthi i-flight welding. I-welding ye-module busbar, kufaka phakathi ukuhlanza izigxobo, inezinhlelo zokusebenza zendiza, ezingakhulisa ububanzi bokucubungula ngendlela eguquguqukayo futhi ephumelelayo.

I-galvanometer engu-3.3D:

Kungakhathaliseki ukuthi ukuskena okugxile phambili noma ukuskena okugxile emuva, ukugxila komsebe we-laser akunakulawulwa ukuze kugxilwe ngokuguquguqukayo. Kwimodi yokuskena yokugxila phambili, lapho umsebenzi ozocutshungulwa uncane, ilensi yokugxila inobubanzi obuthile bokujula kokugxila, ngakho-ke ingenza ukuskena okugxile ngefomethi encane. Kodwa-ke, lapho indiza ezoskenwa inkulu, amaphuzu aseduze nomngcele ngeke agxile futhi awakwazi ukugxila ebusweni bomsebenzi ozocutshungulwa ngoba udlula ububanzi bokujula kokugxila kwe-laser. Ngakho-ke, lapho umsebe we-laser kudingeka ugxile kahle kunoma yisiphi isikhundla endizeni yokuskena futhi insimu yokubuka inkulu, ukusetshenziswa kwelensi yobude obugxilile bokugxila akukwazi ukuhlangabezana nezidingo zokuskena. Uhlelo lokugxila oluguquguqukayo luyisethi yezinhlelo ze-optical ezinobude obugxile obungashintsha njengoba kudingeka. Ngakho-ke, abacwaningi baphakamisa ukusebenzisa ilensi yokugxila eguquguqukayo ukuze kunxeshezelwe umehluko wendlela yokukhanya, futhi basebenzise ilensi egobile (i-beam expander) ukuze bahambe ngokuqondile eceleni kwe-optical axis ukulawula isikhundla sokugxila nokufeza. Ubuso obuzocutshungulwa bunxeshezela ngokuguquguqukayo umehluko wendlela yokukhanya ezindaweni ezahlukene. Uma kuqhathaniswa ne-galvanometer ye-2D, ukwakheka kwe-galvanometer ye-3D kunezela kakhulu "uhlelo lwe-optical lwe-Z-axis", ukuze i-galvanometer ye-3D ikwazi ukushintsha ngokukhululekile indawo yokugxila ngesikhathi senqubo yokushisela futhi yenze ukushisela kwendawo egobile, ngaphandle kwesidingo sokushintsha isithwali njengethuluzi lomshini, njll. njenge-galvanometer ye-2D. Ukuphakama kwerobhothi kusetshenziselwa ukulungisa indawo yokugxila kokushisela.