光管

一种新型多波段大口径平行光管的设计

Design of a new kind of multi-waveband large aperture parallel light pipe

另外介绍了偏振光转换系统的原理以及和光管的耦合。

SYSTEM Principles of the polarization converter and its coupling with the light pipe are discussed .

激发源X射线光管精度更高，范围更宽，使用寿命长达10年以上；

Better precision X ray tube , and wider analysis scope , long lifetime up to10 years .

介绍由于X射线荧光检测器探头的前置放大电路场效应管损坏而导致X射线光管不能打开的故障原因及故障排除方法。

The trouble of disable opening X-ray tube in ARL9400 X-ray fluorescence spectrograph caused by destroied field effect transistor was discussed .

实验结果表明，被研制的GC管总传热系数比光管提高4倍多；而相应的管内侧冷却水流动阻力系数平均为光管的7倍多。

And the relevant friction factor inside the GC tube can be 7 times that of the smooth tube .

在相同的Re情况下，纵向翅片管换热器传热系数K值明显高于光管换热器；

It is found that under the same Reynolds number , the fin tube heat exchangers have higher heat transfer coefficient , especially at low Reynolds numbers .

激光传光管用于ESPI进行远距离表面变形测量

The Surface Deformation Measurement at a Distance Using ESPI and Laser Transfer Tube

测量仪采用多组平行光管和高速线阵CCD相结合进行测量和数据采集，以保证测量仪的大范围连续动态测量。

For the assuring of dynamic continual measuring in large , the method of combining multi-group collimators with high speed linear CCD is used to measure and data collect .

并实时采集两台自准直平行光管内的CCD的视频信号，进行图像处理，判读出两维变形量，实现实时动态变形测量。

Meanwhile it can real-time collect video signal of CCD fixed in two self-straight parallel light-tube and process video , estimates distortion of two-dimension to realize real-time dynamic distortion measure .

并且采用此方法开发出一套完整的LED匀光管的设计方案，通过对两款LED匀光管的设计、仿真与分析，充分证明了该方案的可行性。

Then we develop a set of design proposal of uniform light LED tubes . By designing , emulating and analyzing the uniform light LED tubes , we fully demonstrate the feasibility of this design method .

在本实验范围内，整体针翅管的总换热系数k可达200~1470W/m2ˇK，比相同条件下的光管可增加1~4倍。

In these experiments , total heat transfer coefficient of integral pin-fin tube reached 200 ~ 1470 W / m2 ˇ K , which increased 1 ~ 4 times as compared with the smooth tube .

运用ANSYS对光管和波节管的1/2模型进行非线性分析，得出波节管在强度方面相对于光管的优越性。

Which use ANSYS for the non-linear analysis with the 1 / 2 model of smooth tube and corrugated tubes , and concluded corrugated tubes stronger than smooth tube in intensity that was gained by the action .

结果表明光管的数据与Nuselt解基本一致，而V型纵槽管上膜状凝结换热系数较光管提高了3～8倍。

The heat transfer data of smooth tube agrees with Nusselt 's solution quit well and the condensation heat transfer coefficient of V type fin surface is 3 ~ 8 times as large as that of the smooth surface .

另外，在计算内螺纹管的压降时，应用了Churchill模型得出的摩擦系数及一个合适的相对粗糙度来修正光管的压降关联式。

In addition , Pressure drop correlations for plain tubes were applied to micro-fin tubes by using a friction factor calculated by the Churchill model and a suitable relative roughness .

最终，米勒德建议大家采用廉价的店铺照明，这种照明系统有全光谱的灯泡（光管直径t5或t8[t5直径约16mm，t8直径约25.4mm&译注]）和反光罩。

Ultimately , Ms. Millard recommends cheap shop lights , with full-spectrum bulbs ( t5 or t8 ) and reflective hoods .

我们利用CCD扫描位于被测照相物镜前面的平行光管焦平面上的狭缝像，采样数据通过A/D变换后输入计算机，把这些数据进行快速傅立叶变换即可求出被测照相物镜的OTF值；

We measured the OTF of a photographic lens by digital Fourier Transform , using a CCD to scan the slit image in the focal plane of the collimator in front of the measured lens .

接着设计了平行光管和鉴别率检测物镜的光学结构，并且分别检测了它们的检测精度，按设计需求选取了CCD、显微物镜、电动（手动）六维台等器件。

Next , the collimator and the optical configuration of detectability detection objective were designed , and the precision was detected respectively . The components of CCD , micro objective , six-dimensional sets of motor-driven ( manual operation ) were selected according to the design requirement .

结果，今天可得到的亮度是大半个世纪以来唯一可得到的X光源-X光管的几百万倍。新的X光显微镜相当大地提高了电子学显微镜提供的分辨能力。

As a result , the brightness available today is millions of times tha t of x ray tubes , which , for most of the century , were the only available sources of soft x rays.The new x ray microscopes considerably improve on the resolution provided by optical microscopes .

对于R290和R404A，分别根据各自光管、内螺纹管内凝结换热系数的关联式计算数值与实验数据的比较，筛选出了相应预测精度较好的理论模型。

Based on the experimental data collected , the formulations are selected which can predict accurately in-tube condensation heat transfer coefficients for R290 and R404A .

同时，用直接测温法进行三种不同管径的光管沸腾试验，并把实验结果与Rohsenow公式进行了比较。

For the boiling experiments on outside smooth tubes , the wall superheating degrees were measured by direct method , and these experimental results were compared with Rohsenow 's formula .

运用数值模拟得到管内流体流动和传热特性的分布规律。分析表明螺带后光管长度大约500～600mm时，此段光管具有最大的综合传热系数。

The distributing rules of liquid floating in the tube and heat transfer are obtained by numerical simula - tion which shows that the slick tube has the highest integrated heat transfer coefficient when the twisted-tape insert is about 500 ~ 600 mm .

本文重点介绍JC-1型精密测角仪的动态光电自准直定位平行光管光学系统，为了满足测角仪对多谱线高精度测量的要求，应采用的结构形式及象差校正方案。

This paper described an optical system with dynamic photoelectric autocollimator for location of JC-1 precision goniometer . In order to meet the demand of high accuracy angle measuring of multi-spectral lines , the optical system structure and the aberration correcting method are discussed as well .

关于横向冲刷清洁光管管束的放热计算

The Calculation of Heat Transfer for Clean Tube Banks in Crossflow

大口径长焦距平行光管光学系统设计

Optic Design of Collimator with Large Aperture and Long Focal Length

光管扰流子空气预热器的设计与应用

Design and application of air preheaters using smooth tubes with turbulator

光管管束的沸腾传热实验研究

An experimental study of boiling heat transfer on smooth tube bundles

导光管在体育馆天然光环境设计中的应用

The Application of Light Guide in Natural Lighting Environmental Design for Gymnasium

平行光管是光学实验及计量检测的重要设备。

The collimator is an important equipment for optical experiment and standardization .

用五棱镜法调校平行光管原理的探讨

Discussing The Principle of Adjust Collimator With Penta Prism Method

嵌入式控制系统的任务是依据治疗需要对氙光管发射强脉冲光施行有效控制。

Embedded Monitoring System controls IPL emitted by xenon lamp as requested .