中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [4]
西安光学精密机械研究... [2]
采集方式
OAI收割 [6]
内容类型
会议论文 [4]
期刊论文 [2]
发表日期
2012 [1]
2011 [1]
2010 [1]
2009 [1]
2006 [1]
2005 [1]
更多
学科主题
spectrosco... [1]
筛选
浏览/检索结果:
共6条,第1-6条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Research on the Method of Transient Spectrum Detection Based on Array CCD
期刊论文
OAI收割
spectroscopy and spectral analysis, 2012, 卷号: 32, 期号: 4, 页码: 1028-1031
作者:
Zhu Bing-li
;
Bai Yong-lin
;
Wang Bo
;
Liu Bai-yu
;
Ouyang Xian
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2015/07/02
Linear CCD
Array CCD
CCD high speed imaging
Transient spectrum detection
Real-Time Measurement of Detonation Transient Temperature
期刊论文
OAI收割
spectroscopy and spectral analysis, 2011, 卷号: 31, 期号: 11, 页码: 3060-3063
作者:
Zheng Jin-kun
;
Bai Yong-lin
;
Wang Bo
;
Liu Bai-yu
;
Yang Wen-zheng
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2012/06/29
Mechanics of explosion
Detonation temperature
FPGA
High-speed linear CCD
Multi-wavelength temperature measurement
Parameter identification of airborne vibrated image based on high-speed CCD (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Shi J.
;
Xue X.
;
Guo Y.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
In order to identify the vibration parameters of a vibrated image
the principle and shortage of the traditional methods that based on image derivative and image transformation are analyzed
and a new parameter identification method is proposed afterward. By placing a high-speed CCD aside the master CCD
the vibration can be sampled accurately
and more information can be obtained for parameter identification. The series frames that captured by high-speed CCD are processed by gray projection algorithm and the vibration extents between adjacent frames along x and y direction are obtained. By using simple triangle operations
the vibration parameters can be identified
and the computational complexity of which can be reduced greatly. The experiment shows that the parameter identification method based on high-speed CCD can identify the parameters of vibration with any form accurately. The precise of parameter identification for linear vibration is less than 2.95%. 2010 IEEE.
A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:
Sun Y.
;
Sun Y.
;
Wan Q.-H.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid
according to the difficulties of the detection of the magnetic fluid
established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all
the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer
collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid
which followed the movement of the magnetic fluid
and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA
whose width and depth were designed by the user as required. Then
the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus
whose transmission rate can reach 480Mb/s in theory. Finally
the distribution of the laser speckle on the magnetic fluid was messy and random
which carried certain information about the surface of the magnetic fluid
based on the theories of the statistic correlation and the subdivision of images
analysing and processing the laser speckle interferometric images
indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court
non-contact
non-invasive
high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps
which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.
Non-contact and on-line cone diameter measuring based on high speed linear CCD (EI CONFERENCE)
会议论文
OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
Guohui Z.
;
Jianhua W.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
The remarkable improvement of sensing and processing hardware performance makes the non-contact
on-line
high accuracy and high speed measuring possible by means of linear CCD. The goal of this pager is to describe the key questions on designing the cone diameter detecting system by linear CCD. This paper first describes the detecting scheme. In particular
the factors affecting accuracy
such as resolution
voltage difference between neighbor pixels
detecting rate and so on
are analyzed
and the quantitative estimation equations are provided. CCD takes on the photoelectric translation and measuring component double functions
so the waveform of CCD output signal and the affecting factors merit deep discussion. On the basis of discussion
several principles that can be used to improve the boundary recognition accuracy are presented.
High-speed CCD camera system for the measurement of flight time of cannonballs (EI CONFERENCE)
会议论文
OAI收割
2005 Beijing International Conference on Imaging: Technology and Applications for the 21st Century, May 23, 2005 - May 26, 2005, Beijing, China
作者:
Gong Y.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
We have built a high-speed
sensitive camera system to capture the image sequence of cannonballs with accurate time reference
which can measure the flight time of cannonballs between leaving the cannon and explosion precisely. The camera system is composed of two identical cameras of high frame frequency linear CCD calibrated with the same time base. In this paper we present the operating principle of the camera system and discuss the scheme of high-speed processing of volumes of image data. The real-time measurement less than 1 millisecond can be achieved by the proposed approach.