Identification of rotational center in remote angular-velocity measurement with spatial filtering

ZENG Xiang-kai; ZHU Zhi-xiong; CHEN Yang; LIU Quan-shun

doi:10.3788/OPE.20152307.1972

您当前的位置：

首页 >

文章列表页 >

Identification of rotational center in remote angular-velocity measurement with spatial filtering

更新时间：2020-08-12

- Identification of rotational center in remote angular-velocity measurement with spatial filtering
- Optics and Precision Engineering Vol. 23, Issue 7, Pages: 1972-1977(2015)
- 作者机构：
  
  重庆理工大学光电信息学院重庆,400054
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152307.1972
  CLC： TP212.17;TH824
- Received：28 January 2015，
  
  Revised：30 March 2015，
  
  Published：25 July 2015
- 稿件说明：
移动端阅览
曾祥楷, 朱志雄, 陈阳等. 空间滤波转速遥测中的旋转中心辨识[J]. 光学精密工程, 2015,23(7): 1972-1977

ZENG Xiang-kai, ZHU Zhi-xiong, CHEN Yang etc. Identification of rotational center in remote angular-velocity measurement with spatial filtering[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1972-1977
曾祥楷, 朱志雄, 陈阳等. 空间滤波转速遥测中的旋转中心辨识[J]. 光学精密工程, 2015,23(7): 1972-1977 DOI： 10.3788/OPE.20152307.1972.

ZENG Xiang-kai, ZHU Zhi-xiong, CHEN Yang etc. Identification of rotational center in remote angular-velocity measurement with spatial filtering[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1972-1977 DOI： 10.3788/OPE.20152307.1972.

摘要

进行空间滤波转速遥测时

需要确定目标旋转中心所在的位置后才能判定转速的方向并计算转速的大小。本文根据光学空间滤波测速原理

提出了一种基于双差分空间滤波传感器的旋转中心判定法。用多个光电池构成含有两个差分空间滤波器的双差分空间滤波传感器

该传感器输出中心频率为

和

的两路准正弦信号;移动双差分空间滤波传感器

用移动前后的两组中心频率值计算出系数

;根据

的符号和

与

的相对大小即可判定旋转中心的位置区域。结果表明

0代表旋转中心的成像点

'在双差分空间滤波传感器的中间

0且

表示

'在双差分空间滤波器的下同侧

0且

表示

'在双差分空间滤波器的上同侧。该方法在转速相对平稳时能简单准确、远距离地辨识固体物旋转中心和气固液多相流涡旋中心的位置区域。

Abstract

To determine the direction of a rotational speed and to calculate the value of the rotational speed in remote angular-velocity measurement with the spatial filtering technique

it is necessary to exactly identify the location zone of measured-object rotation center. Therefore

a method of determining the rotation center based on Double Differential Spatial Filtering Sensor (DDSFS) was proposed according to the principle of spatial filtering velocimetry. The DDSFS constructed by multiple photovoltaic cells consists of two Differential Spatial Filters (DSFs)

which outputed two quasi-sinusoidal signals with the central frequencies of

and

. By moving the DDSFS

a coefficient

could be calculated by using two groups of central frequencies before and after moving the DDSFS. Then

the location zone of the rotational center could be distinguished depending on the sign of the coefficient

and the relative relation between

and

. The achieved results show that

0 represents the location zone of the imaged rotation center

' to be between DSF

and DSF

and that

0 with

indicates the location zone of the imaged rotation center

' to be below the DDSFS

and that

0 with

indicates

' to be above the DDSFS. The proposed method can be employed to determine the rotational center of solid body

and the location of whirling center in multiphase fluid with solid

liquid or gaseous substances when the rotation speed is relative stable.

关键词

Keywords

references

XU C L, LI J, WANG S M. A spatial filtering velocimeter for solid particle velocity measurement based on linear electrostatic sensor array[J].Flow Measurement and Instrumentation, 2012, 26(15): 68-78.

单泉源,张军勇,张艳丽,等. 高功率激光系统空间滤波的离焦容限分析[J]. 中国激光,2012,39(9): 25-31. SHAN Q Y, ZHANG J Y, ZHANG Y L et al.. Analysis of defocusing tolerance of spatial filtering in high power laser systems[J]. Chinese Journal of Lasers, 2012, 39(9): 25-31. (in Chinese)

PAU S, DALLAS W J. Generalized spatial filtering velocimetry and accelerometry for uniform and nonuniform objects[J]. Applied Optics, 2009, 48(24): 4713-4722.

HOSOKAWA S, MATSUMOTO T, TOMIYAMA A. Measurement of bubble velocity using spatial filter velocimetry[J]. Experiments in Fluids, 2013, 54(6): 1-12.

MARTI S, NILS D. Velocity measurement for moving surfaces by using spatial filtering technique based on array detectors[M]. Berlin:Springer Berlin Heidelberg Press, 2011, 6752: 303-310.

HOSOKAWA S, TOMIYAMA A. Spatial filter velocimetry based on time-series particle images[J]. Experiments in Fluids, 2012, 52(6): 1361-1372.

王洋,颜昌翔,胡春晖,等. 非接触式扫描反射镜转角测量系统[J]. 光学精密工程,2014,22(4): 850-855. WANG Y, YAN CH X, HU CH H, et al.. Non-contact rotation angle measurement system for scanning mirrors[J]. Opt. Precision Eng. 2014, 22(4): 850-855. (in Chinese)

吴俊,丁甡奇,余葵,等. 光电非接触式表面流速测量[J]. 光学精密工程,2010,18(2): 349-356. WU J, DING SH Q, YU K, et al.. Non-contact measurement of surface flow velocity using photoelectric method[J]. Opt. Precision Eng., 2010, 18(2): 349-356. (in Chinese)

刘红娜. 基于Android系统的非接触式转速测量的研究与实现[D]. 秦皇岛:燕山大学,2013. LIU H N. Android-based Non-contact Speed Measurement Research and Implementation [D]. Qinghuangdao:Yanshan University, 2013.(in Chinese)

蒋善超,隋青美,王静,等. 流速/温度共采的光纤布拉格光栅涡轮流速传感器[J]. 光学精密工程,2014,22(10): 2611-2616. JIANG SH CH, SUI Q M, WANG J, et al.. FBG turbine flow rate sensor for acquiring flow rate and temperature simultaneously[J]. Opt. Precision Eng., 2014, 22(10): 2611-2616. (in Chinese)

HOSOKAWA S, MATSUMOTO T, TOMIYAMA A. Tomographic spatial filter velocimetry for three-dimensional measurement of fluid velocity[J]. Experiments in Fluids, 2013, 54(9): 1-12.

ATOR K T. Image-velocity sensing with parallel-slit reticles[J]. JOSA, 1963, 53(12): 1416-1419.

HE X, NIE X, ZHOU J, et al.. Velocity measurement for moving surfaces using spatial filtering method based on area image sensor[J]. Optik-International Journal for Light and Electron Optics, 2014. 125(24): 7136-7139.

郑丽娜,张涛,匡海鹏,等. 基于线阵CCD空间滤波效应的航空相机像移速度测量方法[J]. 光学学报,2012,32(11): 109-115. ZHENG L N, ZHANG T, KUANG H P, et al.. Image motion velocity measurement technique based on spatial filtering effect of line CCD for aerial camera[J]. Acta Optica Sinica, 2012, 32(11): 109-115. (in Chinese)

郑丽娜,匡海鹏,李文明,等. 基于线阵CCD的空间滤波测速信号基频消除方法[J]. 光学学报,2014,34(2): 86-91. ZHENG L N, KUANG H P, LI W M, et al.. Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal[J]. Acta Optica Sinica, 2014, 34(2): 86-91. (in Chinese)

Views

201

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Correction of random shift of rotation center for nano-scale CT system in X-ray microcopy

Related Author

FU Jian

LIU Zhen-zhong

Related Institution

School of Mechanical Engineering and Automation, Beihang University

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰