The study results indicate that as emission power increases, the peak power density on the section of a certain distance will increase firstly, then it will descend and that the peak light intensity on the section will increase with the increasing of spot radius of basic mode Gaussian beam. As the propagation distance increases, the peak light intensity on the section will descend gradually, and the laser energy will spread. The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

結(jié)果表明www.sdfsx.com，無(wú)風(fēng)穩(wěn)態(tài)熱暈效應(yīng)存在時(shí)综合五月丁香，隨發(fā)射功率的增大，一定傳輸距離截面上的峰值功率密度先增人后減泄反笃ü葾Ⅴ在线⊙侵尥悼蹬模唤孛嫔系姆逯倒鈴?qiáng)隨基模高斯光束的腰斑半徑的增大而增大；隨著傳輸距離的增大天天黄色视频入口，截面上峰值光強(qiáng)在逐漸減小插下面的视频，能量在逐漸向周圍擴(kuò)展；在一定條件下插逼网址，截面上的光強(qiáng)分布會(huì)呈現(xiàn)中心光強(qiáng)小于周圍光強(qiáng)的&草帽型&分布日韩综合在线视频。

In sparkle discharge ,following conclusions could be reached:(1) overall spectral intensity in nitrogen is lower than in oxygen . When water is added, integrality light intensity is lower compared with the pure gas condition.(2) No matter it is nitrogen or oxygen, when water is added, syllabify three spectral lines of atomic H: Hα(656.3nm), Hβ(486.1nm), Hγ(434.0nm) could be seen. What is more, when water is added into oxygen, the spectral line of H atom becomes stronger.(3) When discharge in pure nitrogen, the light intensity falls with the increasing gas flow rate. While if water is added, the light intensity will rises with the increasing gas flow rate.(4) When discharging in pure oxygen, the light intensity rises with increasing gas flow rate. While if water is added, with increasing gas flow rate the light intensity initially will change as this:first rise, then saturate at about 140l/h, finally falls.

在火花放電中：(1)氮?dú)獾恼w光譜強(qiáng)度要弱于氧氣的整體光譜強(qiáng)度，加水時(shí)的整體光譜強(qiáng)度比純氣體中放電小很多亚洲国产精品一区二区玖玖爱；(2)無(wú)論所通為氮?dú)饣蜓鯕夤肥悠狄磺只妫铀畷r(shí)可以清晰的看到Hα(656.3nm)，Hβ(486.1nm)唐人呦一呦二在线播放，Hγ(434.0nm)三條氫原子的譜線女性自慰A级毛片，而且在氧氣加水的情況下產(chǎn)生的H原子的譜線要強(qiáng)些；(3)純氮?dú)庵蟹烹姇r(shí)隨著氣流量的增大放電光譜的強(qiáng)度隨之降低7777视频，氮?dú)饧铀烹姇r(shí)隨著氣流量的增大放電光譜的強(qiáng)度隨之升高十八禁止观看黄色网站；(4)氧氣放電時(shí)，隨著氣流量的增大日本啪啪网午夜啪啪网网站，放電光譜的強(qiáng)度隨之升高国产白色视频在线观看2，氧氣加水中放電時(shí)隨著氣流量的增大，放電光譜的強(qiáng)度開(kāi)始隨之升高一级欧美一级日韩片野外，在140l/h時(shí)的值最高国产浮力网，接著就開(kāi)始下降。

The experiment shows that:(1) In certain light intensity and electric field ranges (145～305V/cm) the material Si∶ with a resistivity of 1E4Ω·cm exhibits a current oscillation phenomenon at liquid nitrogen temperature;(2) At a certain electric field,the waveform of the current oscillation is stable and does not change with time;(3) The dependence relation between the oscillation frequency and light-intensity can be expressed by f=f0(L/L0)α where L0 is the minimum light-intensity needed to stimulate oscillation,f0 is the frequency under L0,L is the intensity of the light,and α is a coefficient that increase with electric field;(4) The modulating coefficient K K=(Imax-Imin/Imax decreases as the light increases;(5) The maximum value of the oscillation Imax decreases with the increase of the light-intensity while the minimum value of oscillation Imin increases slowly.

結(jié)果表明：在一定光照和電場(chǎng)范圍內(nèi)（276～305V/cm 毛片全网站，電阻率為10.4Ω·cm的材料在液氮溫度下顯示出電流振蕩特性中文色婷婷国产精品视频；在一定的電場(chǎng)下，電流振蕩波形是固定的亚洲欧洲精品一区，不隨時(shí)間變化小说亚洲图片；振蕩頻率隨光照強(qiáng)度的增大而線性增大；調(diào)制系數(shù)隨著光強(qiáng)的增強(qiáng)而減弱；振蕩的最大值隨著光照強(qiáng)度增大而減小亚洲h一区综合在线观看，最小值隨著光強(qiáng)增大而緩慢增大中文字幕视频网。

light intensity control：光強(qiáng)控制器

light intensifier 光增強(qiáng)器 | light intensity control 光強(qiáng)控制器 | light intensity detector 光強(qiáng)檢測(cè)器

extremum detection of relative light intensity：光強(qiáng)極值探測(cè)

光分布特征:Light distribution characteristic | 光強(qiáng)極值探測(cè):extremum detection of relative light intensity | 相對(duì)光照強(qiáng)度:the Relative Light Radiation Intensity

Various light color and light intensity may choose：多種光色及亮度選配

15> 紫外光照射光源Ultra violet-LED Lights | 16> 紅外光照射光源Infrared Rays Lights | 多種光色及亮度選配Various light color and light intensity may choose