Mapping of Surface Defects of Optical Components by a High Speed Surface Analysis System

2009 ◽  
pp. 141-141-1
Author(s):  
R Lalezari ◽  
R Knollenberg
Keyword(s):  
Surface Analysis ◽  
High Speed ◽  
Surface Defects ◽  
Optical Components ◽  
Analysis System

Surface analysis system by VUV photons-stimulated desorption

2010 ◽  
Author(s):  
Masahito Katto ◽  
Atushi Yokotani ◽  
Masanori Kaku ◽  
Shoichi Kubodera ◽  
Nobuyoshi Miyabayashi ◽  
...  
Keyword(s):  
Surface Analysis ◽  
Analysis System

scholarly journals The Optimization of Alternating Current Electrospun PA 6 Solutions Using a Visual Analysis System

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2098
Author(s):  
Tomas Kalous ◽  
Pavel Holec ◽  
Jakub Erben ◽  
Martin Bilek ◽  
Ondrej Batka ◽  
...  
Keyword(s):  
High Voltage ◽  
High Speed ◽  
Visual Analysis ◽  
Polyamide 6 ◽  
Alternating Current ◽  
Sine Wave ◽  
Electrospinning Process ◽  
Camera System ◽  
Polymeric Solutions ◽  
Analysis System

The electrospinning process that produces fine nanofibrous materials have a major disadvantage in the area of productivity. However, alternating current (AC) electrospinning might help to solve the problem via the modification of high voltage signal. The aforementioned productivity aspect can be observed via a camera system that focuses on the jet creation area and that measures the average lifespan. The paper describes the optimization of polyamide 6 (PA 6) solutions and demonstrates the change in the behavior of the process following the addition of a minor dose of oxoacid. This addition served to convert the previously unspinnable (using AC) solution to a high-quality electrospinning solution. The visual analysis of the AC electrospinning of polymeric solutions using a high-speed camera and a programmable power source was chosen as the method for the evaluation of the quality of the process. The solutions were exposed to high voltage applying two types of AC signal, i.e., the sine wave and the step change. All the recordings presented in the paper contained two sets of data: firstly, camera recordings that showed the visual expression of electrospinning and, secondly, signal recordings that provided information on the data position in the signal function.

Design and Implementation of the Cold-Rolled Aluminum Plate Surface On-Line Defect Detection System

2013 ◽  
Vol 712-715 ◽  
pp. 2323-2326
Author(s):  
Xing Guang Qi ◽  
Hai Lun Zhang ◽  
Xiao Ting Li
Keyword(s):  
High Speed ◽  
Surface Defects ◽  
Detection System ◽  
Aluminum Plate ◽  
Gigabit Ethernet ◽  
Accurate Detection ◽  
High Processing Speed ◽  
Rolled Aluminum ◽  
On Line ◽  
Cold Rolled

This paper presents an on-line surface defects detection system based on machine vision, which has high speed architecture and can perform high accurate detection for cold-rolled aluminum plate. The system consists of high speed camera and industrial personal computer (IPC) array which connected through Gigabit Ethernet, achieved seamless detection by redundant control. In order to acquire high processing speed, single IPC as processor receives from and deals with only one or two cameras' image. Experimental results show that the system with high accurate detection capability can satisfy the requirement of real time detection and find out the defects on the production line effectively.

Measurement of spontaneous blinks in patients with Parkinson's disease using a new high-speed blink analysis system

2017 ◽  
Vol 380 ◽  
pp. 200-204 ◽  
Author(s):  
Naoko Kimura ◽  
Akihide Watanabe ◽  
Kazutaka Suzuki ◽  
Haruyoshi Toyoda ◽  
Naotoshi Hakamata ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
High Speed ◽  
Analysis System

Effect of Pantograph and Bogie on Interior Noise of High-Speed Train in Tunnel

2013 ◽  
Vol 664 ◽  
pp. 191-196
Author(s):  
You Gang Xiao ◽  
Yu Shi
Keyword(s):  
High Speed ◽  
Sound Pressure ◽  
Broad Band ◽  
Pressure Level ◽  
Channel Noise ◽  
High Speed Train ◽  
Noise Sources ◽  
Vehicle Noise ◽  
Measurement And Analysis ◽  
Analysis System

For clarifying the noise in tunnel affected by pantograph and bogie, which are the most important noise sources, the noises near pantograph and bogie in a high-speed train were tested by multi-channel noise measurement and analysis system in tunnel, and compared with those measured outside the High-speed train and on an open field. The results show that the interior vehicle noise is spatially non-homogeneous in the whole carriage, the larger sound pressure level (SPL) near pantograph are next to ceiling, and near bogie next to floor. The noise spectra show a broad band feature, and dominated by the frequency contents among 100Hz-2kHz, so the countermeasures against noise should be within these range.

Numerical Simulation Research on Scattering Light Imaging of Surface Defects of Optical Components

2015 ◽  
Vol 42 (7) ◽  
pp. 0708005 ◽  
Author(s):  
王世通 Wang Shitong ◽  
杨甬英 Yang Yongying ◽  
赵丽敏 Zhao Limin ◽  
柴惠婷 Chai Huiting ◽  
刘东 Liu Dong ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Surface Defects ◽  
Optical Components ◽  
Simulation Research ◽  
Scattering Light

Validation of High Speed Motion Analysis System to Measure Maximal Speed

2010 ◽  
Vol 42 ◽  
pp. 686
Author(s):  
Nidhi Gupta ◽  
Govindasamy Balasekaran ◽  
Visvasuresh Victor Govindaswamy
Keyword(s):  
Motion Analysis ◽  
High Speed ◽  
Motion Analysis System ◽  
Maximal Speed ◽  
Analysis System
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