Mukusimudzira indasitiri yeruzivo rwenzvimbo kuti ishande zvakanaka uye nemazvo, ma-fiber laser e1.5 μ m ari kuva simba guru rekukura kwemusika muminda miviri mikuru yekuongorora mota dzisina vanhu nekuongorora nemaoko, nekuda kwekuchinja kwavo zvakadzama zvinodiwa munzvimbo. Nekukura kwakanyanya kwezvishandiso zvakaita sekuongorora kwakaderera uye kukwenya mapoinzi ekukurumidza uchishandisa madrone, pamwe nekudzokorora kwezvishandiso zvekuskena nemaoko kuti zvive zvakanyatsonaka uye zvinotakurika, saizi yemusika wepasi rose we1.5 μ m fiber lasers dzekuongorora yadarika 1.2 bhiriyoni yeyuan panosvika 2024, nekudiwa kwemotokari dzisina vanhu nemidziyo yemaoko kuri pamusoro pe60% yehuwandu hwese, uye kuchengetedza avhareji yekukura kwegore negore ye8.2%. Kumashure kwekuwedzera uku kwekuda kune resonance yakakwana pakati pekushanda kwakasiyana kwe1.5 μ m band uye zvinodiwa zvakasimba zvekururama, kuchengetedzeka, uye kuchinjika kwezvakatipoteredza mumamiriro ekuongorora.
1, Pfupiso yeChigadzirwa
"1.5um Fiber Laser Series" yeLumispot inoshandisa tekinoroji yeMOPA amplification, ine simba repamusoro-soro uye electro-optical conversion efficiency, low ASE uye nonlinear effect noise ratio, uye wide working tembiricha range, zvichiita kuti ikodzere kushandiswa seLiDAR laser emission source. Muma surveying systems akadai seLiDAR neLiDAR, fiber laser ye1.5 μ m inoshandiswa se core emission light source, uye performance indicators yayo inosarudza zvakananga "kunyatsojeka" uye "upamhi" hwe detection. Performance yeizvi zviviri dimensions ine chekuita zvakananga nekushanda uye kuvimbika kwemota dzisina vanhu mu terrain surveying, target recognition, power line patrol nezvimwe zviitiko. Kubva pamaonero emitemo ye physical transmission uye signal processing logic, zviratidzo zvitatu zve peak power, pulse width, uye wavelength stability zvinhu zvikuru zvinokanganisa detection accuracy uye range. Maitiro avo ekuita anogona kuparadzaniswa kuburikidza ne chain yese ye "signal transmission atmospheric transmission target reflection signal reception".
2, Minda yeKushandisa
Mubasa rekuongorora nekugadzira mapu emudenga usina munhu, kudiwa kwemalaser efiber e 1.5 μ m kwakawedzera nekuda kwekugona kwawo kupindura pakurwadziwa mukushanda kwemudenga. Puratifomu yemota isina munhu ine miganho yakasimba pahuwandu, huremu, uye kushandiswa kwesimba kwemutoro, nepo dhizaini yechimiro chakamanikana uye hunhu hwakareruka hwelaser yefiber ye 1.5 μ m zvinogona kudzvanya huremu hwelaser radar system kusvika pachikamu chimwe muzvitatu chemidziyo yechinyakare, zvichinyatsoenderana nemhando dzakasiyana dzemota dzisina munhu dzakadai se multi rotor ne fixed wing. Chinonyanya kukosha ndechekuti, bhendi iri riri mu "golden window" yemhepo inotumirwa. Kana ichienzaniswa ne 905nm laser inowanzoshandiswa, kuderedzwa kwayo kwekutumira kunoderedzwa neanopfuura 40% pasi pemamiriro ekunze akaomarara akadai semhute neguruva. Nesimba repamusoro rinosvika kW, rinogona kuwana daro rekuona rinodarika mamita 250 kune zvinangwa zvine reflectivity ye 10%, kugadzirisa dambudziko re "kusaonekwa zvakajeka uye kuyerwa kwedaro" kwemota dzisina munhu panguva yekuongorora munzvimbo dzemakomo, magwenga nedzimwe nzvimbo. Panguva imwe chete, zvinhu zvayo zvakanaka zvekuchengetedza maziso evanhu - zvichibvumira simba repamusoro-soro kupfuura 905nm laser kagumi - zvinoita kuti madrone ashande munzvimbo dzakaderera pasina chikonzero chekuwedzera michina yekudzivirira kuchengetedzeka, zvichivandudza zvikuru kuchengetedzeka uye kuchinjika kwenzvimbo dzine vanhu dzakadai sekuongorora maguta nekugadzira mapu ekurima.
Mubasa rekuongorora nekugadzira mamepu nemaoko, kudiwa kuri kuwedzera kwemafiber lasers e1.5 μ m kwakabatana zvakanyanya nezvinodiwa zvikuru zvekutakura michina uye kunyatsoita basa rayo. Midziyo yemazuva ano yekuongorora nemaoko inofanirwa kuenzana nekuchinjika kunzvimbo dzakaoma uye nyore kushanda. Ruzha rushoma uye kunaka kwemwenje we1.5 μ m fiber lasers zvinogonesa mascanners emaoko kuwana kuyera kwakarurama kwema micrometer, zvichisangana nezvinodiwa zvakanyatsonaka zvakaita sekushandiswa kwetsika uye kuona zvikamu zvemaindasitiri. Kana tichienzanisa nema 1.064 μ m lasers echinyakare, kugona kwayo kudzivirira kukanganiswa kunovandudzwa zvakanyanya munzvimbo dzekunze dzine chiedza chakasimba. Pamwe chete nehunhu hwekuyera husina kubatana, inogona kukurumidza kuwana data rema point cloud munzvimbo dzakadai sekugadzirisa zvivakwa zvekare nenzvimbo dzekununura dzenjodzi, pasina chikonzero chekugadzirisa chinangwa. Chinonyanya kukosha ndechekuti dhizaini yayo yekurongedza inogona kubatanidzwa mumidziyo inobatwa nemaoko inorema pasi pe500 gramu, ine tembiricha yakakura kubva -30 ℃ kusvika +60 ℃, ichinyatsoenderana nezvinodiwa nemabasa akawanda akadai sekuongorora mumunda uye kuongororwa kweworkshop.
Kubva pamaonero ebasa rayo guru, ma fiber laser e 1.5 μ m ave chinhu chakakosha pakugadzirisa kugona kwekuongorora. Mukuongorora kwemotokari dzisina vanhu, inoshanda se "moyo" we radar ye laser, ichiwana kurongeka kwemasendimita kuburikidza ne nanosecond pulse output, ichipa data re high-density point cloud re terrain 3D modeling uye power line foreign object detection, uye ichivandudza kushanda kwekuongorora kwemotokari dzisina vanhu nekanopfuura katatu zvichienzaniswa nenzira dzechinyakare; Mumamiriro ekuongorora kwenyika yenyika, kugona kwayo kuona kure kunogona kuita kuti iongorore zvakanaka makiromita gumi emakiromita pakubhururuka, nekukanganisa kwedata kuchidzorwa mukati memasendimita mashanu. Mumunda wekuongorora nemaoko, inopa simba michina kuti iwane ruzivo rwekushanda "scan and get": mukudzivirira nhaka yetsika, inogona kubata nemazvo ruzivo rwepamusoro rwemagadzirirwo etsika uye kupa mamodheru e3D ane mwero we millimeter ekuchengetedza digital; Mu reverse engineering, data re geometric rezvikamu zvakaoma rinogona kuwanikwa nekukurumidza, zvichikurumidzisa kudzokorora kwekugadzirwa kwechigadzirwa; Mukuongorora nekumepu yenjodzi, nehunyanzvi hwekugadzirisa data panguva chaiyo, modhi yenzvimbo yakakanganiswa inogona kugadzirwa mukati meawa imwe chete mushure mekudengenyeka kwenyika, mafashamo, nedzimwe njodzi, zvichipa rutsigiro rwakakosha pakuita sarudzo dzekununura. Kubva pakuongorora kukuru kwemudenga kusvika pakuongororwa kwakanyatsojeka kwepasi, fiber laser ye1.5 μ m iri kutungamira indasitiri yekuongorora munguva itsva ye "kunyatsojeka + kushanda zvakanaka".
3, zvakanakira zvepakati
Chinhu chikuru chekuona daro iri kure zvikuru apo ma photon anoburitswa nelaser anogona kukunda kuderera kwechiedza uye kurasikirwa nechiedza, uye zvichiri kubatwa nemagumo ekugamuchira sezviratidzo zvinoshanda. Zviratidzo zvinotevera zvelaser yemagetsi ine 1.5 μ m fiber laser zvinonyanya kutonga maitiro aya:
① Simba repamusoro (kW): standard 3kW@3ns &100kHz； Chigadzirwa chakagadziridzwa 8kW@3ns &100kHz ndicho "simba guru rekutyaira" renzvimbo yekuona, inomiririra simba rinobva pakarepo rinoburitswa nelaser mukati mekurova kamwe chete, uye ndicho chinhu chikuru chinoona simba rezviratidzo zvedaro refu. Mukuona madrone, maphoton anofanirwa kufamba mazana kana kunyange zviuru zvemamita mumhepo, izvo zvinogona kukonzera kuderera kwesimba nekuda kwekupararira kweRayleigh uye kunyudzwa kweaerosol (kunyangwe bhendi re1.5 μ m riri re "atmospheric window", kuchine kuderera kwesimba). Panguva imwe chete, kupenya kwenzvimbo (sekusiyana kwemiti, simbi, nematombo) kunogonawo kukonzera kurasikirwa kwechiratidzo. Kana simba repamusoro-soro rawedzerwa, kunyangwe mushure mekudzikira kwedaro refu uye kurasikirwa nekutarisa, huwandu hwemaphoton anosvika kumagumo ekugamuchira hunogona kusvika pa "chiyero-kune-ruzha chiyero", nokudaro huchiwedzera huwandu hwekuona - semuenzaniso, nekuwedzera simba repamusoro re1.5 μ m fiber laser kubva pa1kW kusvika pa5kW, pasi pemamiriro akafanana emhepo, huwandu hwekuona hwe10% reflectivity targets hunogona kuwedzerwa kubva pamamita mazana maviri kusvika pamamita mazana matatu nemakumi mashanu, zvichigadzirisa zvakananga marwadzo e "kusakwanisa kuyera kure" munzvimbo dzakakura dzekuongorora dzakadai senzvimbo dzemakomo nemarenje edrones.
② Upamhi hwepulse (ns): hunogadziriswa kubva pa1 kusvika ku10ns. Chigadzirwa chakajairika chine tembiricha yakazara (-40~85 ℃) yehupamhi hwepulse ye ≤ 0.5ns; zvakare, inogona kusvika tembiricha yakazara (-40~85 ℃) yehupamhi hwepulse ye ≤ 0.2ns. Ichi chiratidzo ndicho "chiyero chenguva" chekururama kwedaro, chinomiririra nguva yemapulse elaser. Nheyo yekuverenga daro yekuona drone ndeyekuti "daro=(light speed x pulse round-trip time)/2", saka upamhi hwepulse hunotarisa zvakananga "kururama kwekuyera nguva". Kana upamhi hwepulse hwadzikiswa, "kupinza kwenguva" kwepulse kunowedzera, uye kukanganisa kwenguva pakati pe "pulse emission time" uye "reflected pulse reception time" pamugumo wekugamuchira kuchaderedzwa zvakanyanya.
③ Kugadzikana kweWavelength: mukati me1pm/℃, upamhi hwemutsetse patembiricha yakazara ye0.128nm ndiyo "accuracy anchor" iri pasi pekukanganiswa kwezvakatipoteredza, uye huwandu hwekuchinja kwewavelength inobuda nelaser ine shanduko dzetembiricha nevoltage. Sisitimu yekuona iri mu1.5 μ m wavelength band inowanzo shandisa tekinoroji ye "wavelength diversity reception" kana "interferometry" kuti ivandudze kururama, uye kuchinja kwewavelength kunogona kukonzera zvakananga kutsauka kwechiyero chekuyera - semuenzaniso, kana drone iri kushanda pakakwirira, tembiricha yemhepo inogona kukwira kubva -10 ℃ kusvika 30 ℃. Kana wavelength temperature coefficient ye1.5 μ m fiber laser iri 5pm/℃, wavelength ichachinja ne200pm, uye kukanganisa kwekuyera daro kuchawedzera ne0.3 millimeters (yakabva mu correlation formula pakati pewavelength nekumhanya kwechiedza). Kunyanya mu unmanned aerial vehicle power line patrol, ma parameter akanyatsojeka akadai se wire sag uye inter line distance anofanira kuyerwa. Wavelength isina kugadzikana inogona kutungamira mukutsauka kwedata uye kukanganisa kuongororwa kwekuchengetedza kwemutsara; Laser ye1.5 μ m inoshandisa tekinoroji yekukiya wavelength inogona kudzora kugadzikana kwewavelength mukati me1pm/℃, ichivimbisa kuti chiyero chemasendimita chakarurama kunyangwe kana tembiricha ikachinja.
④ Kubatana kwechiratidzo: "Kuenzanisa" pakati pekururama uye huwandu munzvimbo chaiyo yekuona madrone, uko zviratidzo zvisingashande zvakazvimiririra, asi zvine hukama hwekushandira pamwe kana hune muganho. Semuenzaniso, kuwedzera simba repamusoro kunogona kuwedzera huwandu hwekuona, asi zvakakosha kudzora upamhi hwepulse kudzivirira kudzikira kwekururama (kuenzanisa kwe "simba rakakwirira + pulse rakamanikana" kunofanirwa kuwanikwa kuburikidza netekinoroji yekumanikidza kwepulse); Kugadzirisa hunhu hwemwenje kunogona kuvandudza huwandu uye kururama panguva imwe chete (kuwanda kwemwenje kunoderedza marara esimba uye kupindira kwekuyera kunokonzerwa nemavara echiedza anowirirana padaro refu). Kubatsira kwe1.5 μ m fiber laser kuri mukukwanisa kwayo kuwana kugona kwe "simba rakakwirira (1-10 kW), hupamhi hwepulse hwakamanikana (1-10 ns), hunhu hwemwenje wakakwira (M²<1.5), uye kugadzikana kwewavelength yakakwira (<1pm/℃)" kuburikidza nehunhu hwakaderera hwekurasikirwa kwefiber media uye pulse modulation technology. Izvi zvinobudirira kaviri "kure (mamita 300-500) + kunyatsojeka (chiyero chemasendimita)" mukuona mota dzisina vanhu, inovawo kukwikwidza kwayo kukuru mukutsiva lasers dzechinyakare dze905nm ne1064nm mukuongorora mota dzisina vanhu, kununura vanhu panguva yenjodzi nedzimwe mamiriro ezvinhu.
Zvinogoneka kugadziriswa
✅ Zvinodiwa pakukwira kwekupisa kwemoyo nehupamhi hwemwoyo
✅ Rudzi rwezvinobuda & bazi rekubuda
✅ Chiyero chekupatsanurana kwebazi rechiedza
✅ Avhareji yesimba rakagadzikana
✅ Kudiwa kwenzvimbo
Nguva yekutumira: Gumiguru-28-2025