查询词典 emission spectrum

It greatly reduces the noise from the discontinuous spectrum in the arc and adapts to the seriously fluctuating welding current during the process and obtains the clear images of the welding pool using common industrial CCD camera.

在对铝合金焊接光谱分析的基础上，以焊接电弧光中的连续光谱作为光源，采用宽带滤波方法设计的全新的光学图像传感器，利用普通工业CCD摄像机获得了画面清晰、质量稳定的铝合金焊接熔池区域图像。

The study on spectrum analysis of arc sound signal has showed that a signature band of 5-10kHz of sound wave would be generated before fault s arc take place, which is strong in intensity and variable in both width and center depending on arcing electrodes, space between electrodes, and discharge volt age.

早期弧声的功率谱分析表明，故障电弧发生之前，在可听波段产生5kHz~10kHz的电弧声，其带宽和中心频率与电极形状、放电距离、放电电压等试验条件有关。

The sepctrum structures and the differences between TIG and MIG welding arc are analysed.The corresponding relations between metal transfer and welding arc spectrum structure are pointed out especially.

通过分析得出了TIG焊电弧光谱空间分布的差异性和MIG焊电弧光谱空间分布的相似性，着重指出MIG焊电弧光谱与熔滴过渡之间存在密切关系。

Distribution features for TIG welding arc ultraviolet spec tr um associated with various of welding parameters have been acquired, and inform ations of welding arc ultraviolet spectrum also have been analyzed.

针对焊接电弧紫外光谱信息的研究，研制了一套焊接电弧紫外光谱计算机采集和处理系统。利用此系统对TIG焊电弧紫外光谱进行了研究，成功地获得了不同焊接规范下的电弧紫外光谱频谱分布特征，并对此进行了分析。

Aiming at the toughness fluctuation of the high grade thick plate pipeline steel submerged arc welding.SEM and energy spectrum analysis had been used to analyze weld microstructure, appearance of impact fracture,composition segregation,weld inclusions,welding wire purity,etc..

针对这种高钢级厚板管线钢埋弧焊接条件下出现的焊缝韧性波动，采用SEM、能谱分析等对焊缝微观组织、冲击断口形貌、成分偏析、焊缝夹杂物、焊丝纯净度等进行了分析。

Arc plume emis— sion spectrum which fits the Planck blackbody radiation function by assuming T=4 350 K shows Swan band system of C2.The arc plasma temperature is about 4 300~4 400K,and the error is about 100K.

放电过程中的电弧等离子体光谱测试表明其中主要有C2分子的发射峰，光谱分布曲线与普朗克黑体辐射曲线中T=4 350 K的分布情况吻合，确定放电电弧等离子体温度约4 300~4 400k，测量误差约100 K。

This system which can do correlation analysis among vacuum arc imagine, light intensity spectrum density, electron density, vacuum arc voltage, vacuum arc current has a series of properties like synchronous exposure, high sampling speed, good quality with comparatively low price, strong functional software, friendly user's interface and so on.

本课题研制成功了真空电弧动态图象高速微机采集系统，该系统具有同步曝光、采样速度快，性能价格比高，软件功能强，用户界面好等特点，该系统可对瞬时的真空电弧形态，光强密度，电子密度，电弧电压，电弧电流进行相关分析。

The paper mainly refers to the thermal stabilities of three nitrates n-propyl nitrate (NPN, isopropyl nitrate and 2-ethylhexyl nitrate by using Infrared spectrum experiment, ARC and DSC.

本论文主要采用了红外光谱实验，加速度量热仪和差示扫描量热仪等手段研究三种硝酸酯（硝酸正丙酯NPN、硝酸异丙酯IPN、硝酸异辛酯EHN）的热安定性。

Secondly, based on a lot of experiments, the method to obtain visual information during aluminum alloy pulse TIG welding is presented. According to the intensity and spectrum distribution of TIG arc of aluminum alloy, the composited wideband filter system were developed to overcome the arc disturbance to weld pool images.

通过大量的实验，探索了铝合金脉冲TIG焊条件下熔池视觉信息的获取方法，根据铝合金TIG焊弧光辐射的强度分布和光谱分布特点，利用熔池反射电弧光的低强度的连续光谱作为照明光源，设计了宽带复合滤光系统，克服了铝合金表面反射的高强度电弧光对熔池视觉信息的干扰。

They include induced polarization method,frequency spectrum IPmethod,trandient electromagnetic method, controlled-source audio-frequency magnetotelluric method and GPR .

这些方法有激发极化法、频谱激电法、瞬变电磁法、可控源音频大地电磁法和探地雷达。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。