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double-focus
相关语句
  双焦
     Laser Double-focus Interference Profilometer first makes a breakthrough in totally common path interference without reference surface.
     激光双焦干涉表面微观轮廓仪在测量原理上首次实现完全共路干涉和无需参考面的突破,为在加工现场对超光滑表面的实时检测提供了可能。
短句来源
     A Double-focus Interference Planar Profilometer
     一种双焦干涉平面微观轮廓仪
短句来源
     Course-angle Mensuration of Floating Platform Via Double-focus CCD Photography
     基于双焦CCD摄像的浮空器航向测定
短句来源
     The principle and control processo f a Double-focus Interference Planar Profilometer is introduced in this article,paying moreattention to its software structure and the key algorithm. Finally we give the results of thecomparisom with Wyko profilometer.
     本文论述了一种产品化的双焦干涉平面微观轮廓仪的测试原理和控制过程,着重介绍其软件的功能结构和关键算法,最后给出了和进口Wyko轮廓仪比对的结果。
短句来源
  “double-focus”译为未确定词的双语例句
     The effect of microcapsulc membrane thickness on permeability constant is proyed on the basis of the determination of the thickness by optical microscopic double- focus method and the calculation of the constant by a theoretical formula.
     本文采用光学显微镜二次聚焦法测定出微胶囊膜厚,通过理论公式计算出微胶囊渗透性常数,从而揭示出微胶囊膜厚对渗透常数的影响规律。
短句来源
     An optical system of double-frequency double-focus technique to measure slider flying characteristics
     双路两焦点磁头飞行姿态测试技术的光路系统
短句来源
     Double-focus algorithm of models in different medium.
     不同介质模型的双聚焦计算方法
短句来源
     Double-focus algorithm simulates two processes of 3-D wavefield response: one is forward process of 3-D wavefield, the other is the process of prestack migration of 3-D wavefield, so that the key of double-focus algorithm is extrapolation of wavefield.
     双聚焦计算方法模拟了两个三维波场响应过程:一是三维波场正演过程; 二是三维波场叠前偏移过程,因此双聚焦算法的关键在于波场外推。
短句来源
     The practical application showed that the prediction of double-focus imaging spatial resolution and illuminating power for complex geologic targets plays an important role in optimum design of 3-D geometry and in improvement of seismic imaging quality.
     实际应用表明:针对复杂地质目标的双聚焦成像空间分辨率和照明强度预测,对于优化三维观测系统设计和提高地震成像质量具有重要作用。
短句来源
  相似匹配句对
     Focus
     媒体聚焦
短句来源
     Focus
     聚焦
短句来源
     The Double Focus Interference Profiles Testing
     双焦干涉表面微观轮廓检测
短句来源
     The Double Focus Interference Spherical Profiler
     双焦干涉球面微观轮廓仪
短句来源
     Double-focus algorithm of models in different medium.
     不同介质模型的双聚焦计算方法
短句来源
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Thin and uniform sources are always needed in β-spectroscopy. For this purpose, an apparatus of vacuum evaporation was designed, by mean of which sources such as In114, Au198 and Sm153 have been prepared. The souces of In114 were prepared respectively by the methods of drop evaporation and vacuum evaporation, and both were measured with the double focusing β-spectrometer and double lens β-spectrometer. Their internal conversion spectra were compared. The advantage of the method of vacuum evaporation is obvious....

Thin and uniform sources are always needed in β-spectroscopy. For this purpose, an apparatus of vacuum evaporation was designed, by mean of which sources such as In114, Au198 and Sm153 have been prepared. The souces of In114 were prepared respectively by the methods of drop evaporation and vacuum evaporation, and both were measured with the double focusing β-spectrometer and double lens β-spectrometer. Their internal conversion spectra were compared. The advantage of the method of vacuum evaporation is obvious. In addition, the Au198 K-conversion line of 411.8 KeV γ-ray and Sm153 K, LⅠ, LⅡ, LⅢ convertion lines of 69.67 KeV γ-ray measured with double focusing β-spectro-meter are given.

在β谱学的研究中,经常需要薄而均匀的放射源。为此目的,我们设计了一套真空蒸发制源装置,并用它制出了In~(110),Au~(198)和Sm~(153)的放射源。为了说明问题,我们分别用液滴蒸发和真空蒸发法制备了In~(114)的放射源,用双磁镜和双聚焦β谱仪测量了它们的内转换能谱,并对它们的结果进行了比较。可以看到,真空蒸发法制备源的优点是明显的。此外,也给出了双聚焦β谱仪测量的Sm~(153)69.67千电子伏γ射线的K,L_Ⅰ,L_Ⅱ和L_Ⅲ转换电子线以及Au~(198)411.84千电子伏γ射线的K转换电子线。

A high resolution mass spectrometer for organic analysis has beendeveloped. This instrument is based on the ion optical system theory having com-plete second order double focusing as suggested by Matsuda. A mass resolution of70000 is achieved. At 8kv accelerating voltage, the mass range of 1~1200 amu isobtained. Sensitivity of the mass spectrometer is better than 1×10~(-11)c/μg (resolution10000). In the mass range of 18~999 amu, a marker of every mass peak on theUV recorder chart may be given, and the mass number's...

A high resolution mass spectrometer for organic analysis has beendeveloped. This instrument is based on the ion optical system theory having com-plete second order double focusing as suggested by Matsuda. A mass resolution of70000 is achieved. At 8kv accelerating voltage, the mass range of 1~1200 amu isobtained. Sensitivity of the mass spectrometer is better than 1×10~(-11)c/μg (resolution10000). In the mass range of 18~999 amu, a marker of every mass peak on theUV recorder chart may be given, and the mass number's digit is displayed. Usingthe peak matching method, the accuracy of mass determination is 5ppm within 10%mass range. The accuracy of mass determination of a high resolution mass spectrafrom the output of the data system is better than 5ppm. Experiment demonstratesthat a high mass resolution of the mass spectrometer can be achieved by simpleadjustment. It is known from experimental results that the effect of α slit widthand β slit width on the mass resolution is small. It comfirms that the focusingcharacters of the optical system are avialable. The instrument has a conventionalelectron impact ion source, a field ionization/field desorption/electron impactcombined ion source. We have built our emitter activation device. The sampleinlet system of the instrument includes both the direct inlet and reference inletfor the standard sample PFK. The DJS-130 computer of the data system has 32Kcore memory, 16 bit, 2μs cycle time. The A/D converter of the interface has 16bit 20 kc. The data system has the application programs of high and low resolu-tion mass spectra. The analytical results of the sample of plant chemistry by meansof the mass spectrometer is described. According to the table of element componentof the data system output, molecular weight and molecular formula of the compoundsmay be determined.

按照MATSUDA完全二级双聚焦离子光学系统的理论,试制成功了有机分析高分辨本领质谱计ZhP5。仪器的最高分辨本领优于70000,除常规的电子轰击离子源(EI)外还配有场致电离、场解吸和电子轰击的组合离子源(FD/FI/EI)。接收器用闪烁探测器。仪器与计算机连用,其质量测量精度高于3mmu。本文对仪器的概况和某些实验结果作了一般的介绍。

The paper presents several reverse geometry double focusing ion optical sys-tems consisting of a homogeneous magnetic field and a totoidal condenser in massspectrometer; and gives the geometric parameters of the construction and thecoefficents of aberration. It also describes a quadrupole lens which improves theresolution and the sensitivity.

本文提出了质谱仪器中几组由均匀磁场和环形电场组成的逆置双聚焦离子光学系统,给出了它们的几何参数和象差系数。文中还描述了加入静电四极透镜对提高分辨本领和灵敏度的作用。

 
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