核心参数
产地类别: 进口
LaVision GmbH气体流量计PLIF-FlameMaster的工作原理介绍
气体流量计PLIF-FlameMaster的使用方法?
LaVision GmbHPLIF-FlameMaster多少钱一台?
气体流量计PLIF-FlameMaster可以检测什么?
气体流量计PLIF-FlameMaster使用的注意事项?
LaVision GmbHPLIF-FlameMaster的说明书有吗?
LaVision GmbH气体流量计PLIF-FlameMaster的操作规程有吗?
LaVision GmbH气体流量计PLIF-FlameMaster报价含票含运吗?
LaVision GmbHPLIF-FlameMaster有现货吗?
更多
更多
生物柴油碳链长度对小口径光学柴油机缸内碳烟形成过程的影响
采用LaVision的激光诱导荧光和激光诱导白炽光测量方法,对生物柴油碳链长度对小口径光学柴油机缸内碳烟形成过程的影响进行了研究。
石油/化工
2019/12/11
降落液膜传热特性的组合实验和计算研究
采用LaVisin公司DaVis软件平台为核心搭建了平面激光诱导荧光(PLIF), 粒子跟踪测速,以及红外测温平台。利用这一测量平台对降落液膜传热特性进行了实验和计算研究
石油/化工
2019/07/23
在反应流中产生的纳米颗粒表征
用LaVision的图像增强器IRO,Imager Intense 相机和染料激光器构成了一套OH PLIF 自由基测量系统。对在反应流中产生的纳米颗粒特性进行了表征。
石油/化工
2019/07/17
球形气泡高斯尾流区域气体-液体扩散系数
采用LaVision公司的ImagerIntense型相机和可编程时间控制单元PTU,Nd:YAG激光器和另外一台高速770Hz高速相机,测量研究了氧气在气泡中向液体扩散过程。
石油/化工
2017/07/18
多线羟基标志测速技术用于反应和非反应实验流体
A new compact micro-lens optical system has been developed to produce a 7 x 7 multiline optical grid for Hydroxyl Tagging Velocimetry (HTV). These lines provide additional spatial information and aid the software tracking of the flowfield by increasing its resolution. Single-photon photodissociation of groundstate H2O by a ~193-nm ArF excimer laser “writes” a 7 x 7 beam molecular grid with very long gridlines of superequilibrium OH and H photoproducts in either room air flowfields or in H2-Air flames due to the presence of H2O vapor. The displaced OH tag lines’ positions are revealed through fluorescence by A2Σ+ (v′= 0) ← X2Πi (v″ = 0) OH excitation using a ~308 nm pulsed frequency-doubled dye laser. A time-of-flight software (DaVis 6.0 Stereo PIV/PTV, LaVision, GmbH) determines the instantaneous velocity field. HTV tag lifetime comparisons between experimental results and theoretical predictions are discussed.
石油/化工
2008/02/14
柴油纳米颗粒的实时测量
During the last decade particulate matter emission regulation have mandated lower emissions. Future regulations (e.g. EURO 5) will require even lower vehicle emissions. A large reduction in total particulate mass will also create new problems in accurate measurement. Further the calibration of engine maps to interface with soot trap optimisation will require transient data which is certainly beyond current gravimetric procedures. Laser-Induced Incandescence is a technique capable of measuring accurately and near instantaneously particulate matter mass and soot primary particle diameter. LII offers as well the ability to operate in raw exhausts where hydrocarbon loading and vapours often affect other instruments. This poster presents the self-calibrated LII technique invented by the National Research Council, Canada and currently under development in collaboration with Cranfield University. We present measurements taken at Millbrook Proving Ground Emission Test Chamber on a Vauxhall Frontera® and a Dennis Dart® bus following the Euro 4 cycle procedure and the Millbrook London Bus Transport Cycle Procedure. This poster includes also a demonstration of real-time raw exhaust measurement between the exhaust and the particulate trap of a London Bus and a comparison with instruments available within the test facility. The
石油/化工
2009/12/27
更多
气体自由喷射的单次体视3维层析激光诱导荧光成像研究
Single-shot, tomographic imaging of the three-dimensional concentration field is demonstrated in a turbulent gaseous free jet in co-flow using volumetrically illuminated laser-induced fluorescence. The fourthharmonic output of an Nd:YAG laser at 266 nm is formed into a collimated 15 × 20 mm2 beam to excite the ground singlet state of acetone seeded into the central jet. Subsequent fluorescence is collected along eight lines of sight for tomographic reconstruction using a combination of stereoscopes optically coupled to four two-stage intensified CMOS cameras. The performance of the imaging system is evaluated and shown to be sufficient for recording instantaneous three-dimensional features with high signal-tonoise (130:1) and nominal spatial resolution of 0.6–1.5 mm at x/D = 7–15.5.
2803KB
2016/08/26
落到倾斜箔片上的液体薄膜流动的时间空间分辨热传导过程的实验研究
This paper describes the development of an experimental technique that combines simultaneous planar laser-induced fluorescence (PLIF) and infrared (IR) thermography imaging, and its application to the measurement of unsteady and conjugate heat-transfer in harmonically forced, thin liquid-film flows falling under the action of gravity over an inclined electrically heated-foil substrate. Quantitative, spatiotemporally resolved and simultaneously conducted measurements are reported of the film thickness, film free-surface temperature, solid–liquid substrate interface temperature, and local/instantaneous heat flux exchanged with the heated substrate. Based on this information, local and instantaneous heat-transfer coefficients (HTCs) are recovered. Results concerning the local and instantaneous HTC and how this is correlated with the local and instantaneous film thickness suggest considerable heat-transfer enhancement relative to steady-flow predictions in the thinner film regions.
2829KB
2016/08/26
湍流预混钝体火焰引燃几率的模拟和实验研究
The ignition characteristics of a premixed bluff-body burner under lean conditions were investigated experimentally and numerically with a physical model focusing on ignition probability. Visualisation of the flame with a 5 kHz OH* chemiluminescence camera confirmed that successful ignitions were those associated with the movement of the kernel upstream, consistent with previous work on non-premixed systems. Performing many separate ignition trials at the same spark position and flow conditions resulted in a quantification of the ignition probability Pign, which was found to decrease with increasing distance downstream of the bluff body and a decrease in equivalence ratio. Flows corresponding to flames close to the blow-off limit could not be ignited, although such flames were stable if reached from a richer already ignited condition.
1273KB
2016/08/26
聚焦燃烧,光学测量解决方案
不断发展的工业和快速成长的全球化市场对初级能源供应的增加,可靠的本地化制造和灵 活的公共交通运输都提出了与日俱增的需求。 尽管可替代技术方兴未艾并日益获得关注,但传统的、通过燃烧获得动力的途径在未来数 十年内仍将在能源结构中占有重要份额(参考下面“世界能源展望”图表)。 伴随可再生能源日益强烈的冲击,产生动力和热量的燃料种类的多样性也得到了空前规模 的扩展。此外,对能源利用效率和燃烧生成污染物控制的立法在逐步强化。对燃烧相关的 复杂过程的深入而细致的理解将会促进相关测量技术的进步。而这将有助于应对当前能源 领域的挑战并为未来发展储备所需技术。
4760KB
2012/07/30
DaVis-PIV系统图像数据采集和硬件控制的集成软件平台
DaVis是德国LaVsion公司推出的应用于反应和非反应流场测量,材料表面成像和追迹以及超快成像的智能(激光)成像技术的完整软件平台。 DaVis以灵活的图像采集模块,可用户定制的应用界面和特殊应用软件包三大特色功能成就了完美的成像系统所需软件。 DaVis软件可满足用户以纳秒量级的精度进行相机曝光,外部照明以及外部触发的同步控制并能自由选择采集图像序列。除此之外,DaVis软件拥有各种成像设置和控制的功能。 DaVis软件对用户开放,这种特色结合软件本身的宏命令语言,能够使得成像系统快速适应从高深的科学研究到可靠的工业应用等各种不同测量需求。 不仅如此,DaVis还拥有灵活的图像采集模式,先进的图像处理算法,多维图像数据的智能存储和显示,多种硬件的软件控制等功能。 集成了2DPIV和3DPIV功能模块的DaVis软件,参加了连续三年的PIVChallenge(http://www.pivchallenge.org)评测活动,均取得了优异成绩。客观证明了DaVis软件平台的出色性能。 PIVChallenge的组织者将两次PIVChallenge 活动的结果作了详尽的总结,并将结果发表在了公开的网站和杂志上。有关文章和下载网址如下: 1. Stanislas M, Okamoto K, Kaehler C (2003) Main results of the First International PIV Challenge. Meas Sci Technol 14:R63-R89 下载地址: http://stacks.iop.org/0957-0233/14/R63 或: http://www.oplanchina.com/download/Stanislas PIV challenge 2001.pdf 2. Stanislas M, Okamoto K, Kaehler C, Westerweel J (2005) Main results of the Second International PIV Challenge. Exp Fluids 39: 170-191 下载地址:http://www.oplanchina.com/download/PIV Challenge 2003 Results.pdf
2171KB
2008/01/19
北京欧兰科技发展有限公司
公司地址
北京市海淀区上地十街1号辉煌国际中心1号楼1006室
客服电话