Further study of spectral ripple with a laser scattering measurement apparatus

2017 ◽  
Vol 393 ◽  
pp. 103-106 ◽  
Author(s):  
Zhongqi Tan ◽  
Zhifu Luo ◽  
Siqi Liu ◽  
Xiaobao Zhang ◽  
Xingwu Long
Keyword(s):  
Laser Scattering ◽  
Measurement Apparatus ◽  
Scattering Measurement

Research and Progress of Electromagnetic Coil Gun Ranging

2014 ◽  
Vol 1049-1050 ◽  
pp. 1176-1180
Author(s):  
Chao Qi ◽  
Ye Wang ◽  
Wei Jian Liu ◽  
Yong Quan
Keyword(s):  
Great Influence ◽  
Energy Conversion Efficiency ◽  
Optical Methods ◽  
Laser Scattering ◽  
Advantages And Disadvantages ◽  
Electromagnetic Coil ◽  
Position Detection ◽  
Multi Stage ◽  
Optimum Position ◽  
Scattering Measurement

The armature trigger position of multi-stage electromagnetic coil gun has great influence on the exit velocity of projectile. The energy conversion efficiency of the coil gun can be improved effectively if the armature is triggered in the optimum position. So it is important to detect the projectile position in time. Several typical electrical and optical methods for position detection are summarized in this paper. The advantages and disadvantages of each method are analyzed and evaluated. And a new laser scattering measurement method is proposed. Results show that optical detection method is simple and easy to implement, but it is susceptible to environmental impacts.

Laser‐scattering measurement of temperature profiles of a free‐burning arc

1992 ◽  
Vol 60 (11) ◽  
pp. 1304-1306 ◽  
Author(s):  
A. B. Murphy ◽  
A. J. D. Farmer ◽  
J. Haidar
Keyword(s):  
Temperature Profiles ◽  
Laser Scattering ◽  
Scattering Measurement

Laser scattering measurement for laser removal of graffiti

2015 ◽  
Author(s):  
Watcharawee Tearasongsawat ◽  
Phumipat Kittiboonanan ◽  
Chaiya Luengviriya ◽  
Amarin Ratanavis
Keyword(s):  
Laser Scattering ◽  
Scattering Measurement

Three-channel autoregressive bispectral analysis for the laser scattering measurement of turbulence

1992 ◽  
Vol 54 (10) ◽  
pp. 1249-1256
Author(s):  
N. Iwama ◽  
M. Yoshioka ◽  
F. Sakaguchi ◽  
B. Cabrit ◽  
D. Grésillon
Keyword(s):  
Bispectral Analysis ◽  
Laser Scattering ◽  
Scattering Measurement

SOOT PARTICLE MEASUREMENT IN ENGINE CYLINDER: A REVIEW

2016 ◽  
Vol 78 (8) ◽  
Author(s):  
Fadzli Ibrahim ◽  
Wan Mohd Faizal Wan Mahmood ◽  
Shahrir Abdullah ◽  
Mohd Radzi Abu Mansor
Keyword(s):  
Laser Scattering ◽  
Non Invasive ◽  
Engine Cylinder ◽  
Laser Induced Incandescence ◽  
Particle Measurement ◽  
High Level ◽  
Soot Measurement ◽  
Invasive Techniques ◽  
Laser Extinction ◽  
Scattering Measurement

This review article describes a list of most common techniques of soot measurement, particularly for in-cylinder diesel engine soot. The techniques presented in this paper are Laser Induced Incandescence (LII), Light/Laser Extinction Measurement (LEM), Light/Laser Scattering Measurement (LSM), Emission Tomographic (ET) and Thermophoretic Sampling. All techniques are briefly elaborated and their principles of operation, as well as their applications and current issues, are covered. It is commonly acknowledged that non-invasive techniques feature some advantages and are more preferable compared to invasive techniques. Besides, more modern technique such as ET is said to be most widely applied in the future due to its high level of accuracy. However, there are possibilities that both invasive and non-invasive methods can complement each other to obtain more accurate soot measurements.

Synthesis of Highly Monodispersed Core/Shell Mesoporous Silica Spheres

2006 ◽  
Vol 45 ◽  
pp. 814-818
Author(s):  
Kazuhisa Yano ◽  
Tadashi Nakamura ◽  
Hiroshi Nozaki ◽  
Noritomo Suzuki ◽  
Yuusuke Akimoto
Keyword(s):  
Mesoporous Silica ◽  
Particle Surface ◽  
Core Shell ◽  
Silica Spheres ◽  
Laser Scattering ◽  
Monodispersed Particles ◽  
Core Shell Structure ◽  
Mesoporous Silica Spheres ◽  
Scattering Measurement

Particle size development of monodispersed mesoporous silica spheres (MMSS) was investigated by laser scattering measurement, TEM and XRD in situ. Smaller particles suddenly appeared after the commencement of the experiment, then growing homogeneously to larger particles. It is assumed that residual silica precursors in solution preferentially reacted with existing particle surface silanol, preventing generation of new particles. This leads to the formation of monodispersed particles. Based on the mechanism, monodispersed mesoporous silica spheres with core/shell structure have been newly synthesized.

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