A cikin fasahar optoelectronic na zamani, lasers semiconductor sun fice tare da ƙaramin tsari, ingantaccen inganci, da saurin amsawa. Suna taka muhimmiyar rawa a fagage kamar sadarwa, kiwon lafiya, sarrafa masana'antu, da ji/jima. Duk da haka, lokacin da ake magana game da aikin laser na semiconductor, ɗaya da alama mai sauƙi amma mai mahimmanci mahimmanci - zagayowar aiki - sau da yawa ana watsi da shi. Wannan labarin yana nutsewa cikin ra'ayi, lissafi, abubuwan da ake buƙata, da kuma mahimmancin mahimmancin sake zagayowar aiki a cikin tsarin laser semiconductor.
1. Menene Zagayowar Aiki?
Zagayowar aiki rabo ne marar girma da aka yi amfani da shi don kwatanta adadin lokacin da Laser yake cikin yanayin "kan" a cikin lokaci ɗaya na sigina mai maimaitawa. Yawanci ana bayyana shi azaman kashi. Ma'anar ita ce: Zagayowar Duty=(Pulse Width/Lokacin Pulse)×100%. Misali, idan Laser yana fitar da bugun jini na microsecond 1 kowane microsecond 10, zagayowar aikin shine: (1 μs/10 μs) × 100%=10%.
2. Me yasa Zagayowar Layi Ke Da Muhimmanci?
Kodayake rabo ne kawai, sake zagayowar aiki kai tsaye yana shafar sarrafa zafin zafin Laser, tsawon rayuwa, ƙarfin fitarwa, da ƙirar tsarin gabaɗaya. Mu fayyace muhimmancinsa:
① Gudanar da Zazzabi da Rayuwar Na'urar
A cikin babban mitar pulsed ayyuka, ƙananan aikin sake zagayowar yana nufin tsawon lokacin “kashe” tsakanin bugun jini, wanda ke taimaka wa Laser sanyi. Wannan yana da fa'ida musamman a aikace-aikace masu ƙarfi, inda sarrafa zagayowar aiki zai iya rage damuwa na thermal da tsawaita rayuwar na'urar.
② Ƙarfin Fitarwa da Ƙarfin Ƙarfin gani
Matsakaicin sake zagayowar ayyuka yana haifar da mafi girman matsakaicin fitarwa na gani, yayin da ƙaramin sake zagayowar aiki yana rage matsakaicin ƙarfi. Daidaita zagayowar aiki yana ba da damar daidaita ƙarfin fitarwa ba tare da canza kololuwar motsi ba.
③ Martanin Tsarin da Tsarin Siginar
A cikin sadarwa na gani da tsarin LiDAR, aikin sake zagayowar yana tasiri kai tsaye lokacin amsawa da tsare-tsaren daidaitawa. Misali, a cikin kewayon laser pulsed, saita tsarin aikin da ya dace yana inganta gano siginar echo, yana haɓaka daidaiton aunawa da mita.
3. Misalai na Aikace-aikace na Zagayen Ayyuka
① LiDAR (Ganowar Laser da Ragewa)
A cikin 1535nm Laser kewayon kayayyaki, ƙaramin aiki-sake zagayowar, babban ƙwanƙwasa bugun jini yawanci ana amfani dashi don tabbatar da gano nesa mai tsayi da amincin ido. Sau da yawa ana sarrafa hawan keke tsakanin 0.1% da 1%, yana daidaita ƙarfin kololuwa tare da aminci, aiki mai sanyi.
② Magungunan Laser
A aikace-aikace kamar dermatological jiyya ko Laser tiyata, daban-daban ayyuka hawan keke haifar da daban-daban thermal effects da warkewa sakamakon. Babban sake zagayowar aiki yana haifar da dumama mai dorewa, yayin da ƙaramin aikin sake zagayowar yana goyan bayan zubar da jini nan take.
③ Gudanar da Kayan Masana'antu
A cikin alamar Laser da waldawa, aikin sake zagayowar yana shafar yadda ake saka kuzari cikin kayan. Daidaita zagayowar aiki mabuɗin don sarrafa zurfin zane da shigar waldi.
4. Yadda Ake Zaɓan Tsarin Aikin Da Ya dace?
Mafi kyawun sake zagayowar aikin ya dogara da takamaiman aikace-aikacen da halayen laser:
①Zagayen Ƙarƙashin Ayyuka (<10%)
Mafi dacewa don babban kololuwa, gajeriyar aikace-aikacen bugun bugun jini kamar jeri ko daidaitaccen alama.
②Zagayowar Aikin Matsakaici (10%-50%)
Dace da high-maimaituwa pulsed Laser tsarin.
③Babban Aikin Zagaye (> 50%)
Gabatowa aikin ci gaba da igiyar ruwa (CW), ana amfani da shi a aikace-aikace kamar famfo na gani da sadarwa.
Sauran abubuwan da za a yi la'akari da su sun haɗa da iyawar daɗaɗɗen zafin jiki, aikin da'ira na direba, da kwanciyar hankali na Laser.
5. Kammalawa
Ko da yake ƙarami, aikin sake zagayowar shine madaidaicin ƙira a cikin tsarin laser semiconductor. Yana rinjayar ba kawai fitarwar aiki ba har ma da kwanciyar hankali na dogon lokaci da amincin tsarin. A nan gaba Laser ci gaba da aikace-aikace, daidai iko da m amfani da aikin sake zagayowar zai zama da muhimmanci ga inganta tsarin yadda ya dace da kunna bidi'a.
Idan kuna da ƙarin tambayoyi game da ƙira ko aikace-aikacen ma'aunin Laser, jin daɗi don isa ko barin sharhi. Mun zo nan don taimakawa!
Lokacin aikawa: Jul-09-2025