Two novel preionization technologies are presented . one is " multi - segmented coaxial pulsed - preionization " 第一種技術(shù)稱(chēng)為“縱向多段脈沖預(yù)電離“技術(shù)。
A number of metal cirque electrodes surround equidistantly outside the glass discharge tube , acting as preionization electrodes 在玻璃放電管的外表面緊密套上若干圓環(huán)形電極,作為預(yù)電離電極。
In contrast to pulsed discharge without preionization , the working voltage of the laser falls about 20 % and the electro - optical efficiency is improved approximately 30 % 和無(wú)預(yù)電離的脈沖放電相比,激光器的工作電壓下降了大約20 ,電光轉(zhuǎn)換效率提高了大約30 。
Another is " helical transverse - pulsed preionization " . two comparatively parallel copper foil strips surround helically outside the glass discharge tube , acting as preionization electrodes 在玻璃放電管的外表面螺旋地粘上兩條相對(duì)平行的金屬箔,作為預(yù)電離電極。
Finally , based on the theoretical and experimental studies above , we bring forward two new schemes of pulsed - preionization slab co : laser with diffusive cooling 最后,在前述理論和實(shí)驗(yàn)的基礎(chǔ)上,提出了兩種新型的脈沖預(yù)電離擴(kuò)散冷卻板條co _ 2激光器方案,進(jìn)行了可行性研究。
This paper also presents a theoretical analyzing method for the instantaneous simulation of pulsed - preionization discharge by using pspice software , it is favorable to the optimal design of the laser discharge circuit 獲得的最大的電光轉(zhuǎn)換效率達(dá)19 。本文還發(fā)展了一種采用pspice軟件對(duì)脈沖預(yù)電離放電進(jìn)行瞬態(tài)模擬的理論分析方法,有利于激光器放電電路的優(yōu)化設(shè)計(jì)。
Non - selfsustained longitudinal discharge co2 laser employing helical transverse - pulsed preionization technology is investigated for the first time . the main discharge and output power are well controlled by the pre - ionization pulser 采用螺旋結(jié)構(gòu)橫向脈沖預(yù)電離技術(shù)首次研究了非自持縱向放電co _ 2激光器,非自持激光器的主放電和輸出功率由外加的預(yù)電離脈沖控制,激光器的可控性非常好。
In this dissertation the operation mechanism of pulsed - preionization diffusive cooling co _ 2 , laser is studied . pulsed preionization technology is put forward to improve the stability of discharge , decrease the operating voltage , and enhance the electro - optical efficiency 本文研究了脈沖預(yù)電離的擴(kuò)散冷卻co _ 2激光器的運(yùn)轉(zhuǎn)機(jī)理,提出采用脈沖預(yù)電離技術(shù)改善縱向脈沖放電的穩(wěn)定性、降低工作電壓和提高電光轉(zhuǎn)換效率。
Firstly , the paper discusses the characters , principles of excimer laser , and study on pulse discharge process . secondly , for the purpose of designing excimer laser , i spent a lot of time to researsh and finish electrode designing , reducing circuit inductance , spark gap designing , ns discharge , uv preionization , glow discharge 本論文首先對(duì)準(zhǔn)分子激光特點(diǎn),原理,脈沖放電進(jìn)行了評(píng)述,其次,以試制xecl準(zhǔn)分子激光器為目的,探索并完成了電極設(shè)計(jì)、回路電感減小方法、火花開(kāi)關(guān)設(shè)計(jì)、 ns陡前沿放電、紫外預(yù)電離、輝光放電、脈沖功率技術(shù)研究。