中国科学院机构知识库网格系统: 检索

Auto-Alignment Non-Contact Optical Measurement Method for Quantifying Wobble Error of a Theodolite on a Vehicle-Mounted Platform 期刊论文 OAI收割
Tehnicki Vjesnik, 2024, 卷号: 31, 期号: 2, 页码: 449-459
作者: Li, Xiangyu; Hao, Wei; Xie, Meilin; Liu, Bo; Jiang, Bo

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收藏 | 浏览/下载：12/0 | 提交时间：2024/05/22

autocollimator dual-axis inclinometer electro-optical theodolite optical measurement vehicle-mounted platform wobble error

Extended kalman predictive filter and its application in theodolite system 会议论文 OAI收割
Beijing, China, 2019-07-12
作者: Changming, Lu; Xin, Gao; Zhiguo, Li; Meilin, Xie; Yu, Cao

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收藏 | 浏览/下载：58/0 | 提交时间：2019/09/20

Theodolite Extended Kalman Filtering Tracking Differentiator Speed Stability Tracking Accuracy

Design and implementation of real-time intersection simulation for optoelectronic equipment 会议论文 OAI收割
Chongqing, China, 2019-05-24
作者: CHEn, Yan; Zhang, Zhixiang; Zhou, Xin; Jin, Humin; Zhang, Mingmei

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收藏 | 浏览/下载：43/0 | 提交时间：2019/09/20

photoelectric theodolite optical measurement trajectory triangulation ballistic trajectory simulation

Non-landing vehicle-mounted electro-optical theodolite deformation measurement method using inertial sensors 期刊论文 OAI收割
Measurement Science and Technology, 2019, 卷号: 30, 期号: 5
作者:

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收藏 | 浏览/下载：49/0 | 提交时间：2021/05/06

deformation measurement electro-optical theodolite gyroscope inclinometer

Application of interferometry measurement in large-scale optic-electrical theodolite (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者: Sun Z.

收藏 | 浏览/下载：39/0 | 提交时间：2013/03/25

Interferometry is a very important method in high accuracy measurement for optical system. This article briefly introduced the conception of interferometry and took a product of 4D Technology as an example to carry on the measurement. A large-scale optic-electrical Theodolite in assemblage was measured and its primary mirror was 400mm in diameter. With the analysis of the results some micro adjustments of the mechanical structure proceed and it made the system perform better. The final results of the whole system is 1.061 in P-V value and 0.1136 in RMS value (=632.8nm) this meets the demand of optical design and practical application. The result demonstrates that interferometry is a good way to be utilized and optimize in the procedure of assemble. (2013) Trans Tech Publications Switzerland.

The application of variable-structure control in theodolite fast capture (EI CONFERENCE) 会议论文 OAI收割
3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, August 1, 2012 - August 2, 2012, Guangxi, China
Bing G.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

The high capability of O-E theodolite to track and acquire fast moving targets is required these years because of the rapid advancement of tested targets and automation of equipments. The traditional method of increasing the frequency width is limit. By using multi control models and velocity leading the capability to track and acquire fast moving target is improved highly. The theories and technologies discussed in this dissertation were tested with experiments. It verifies that the theoretical analysis in this dissertation is correct. (2012) Trans Tech Publications Switzerland.

Lightweight design of large scale theodolite's turntable based on topology optimization of continuum structure (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

In order to solve the problem that the weight of large scale theodolite's casting or steel plate welded structure is too heavy lightweight design of large scale turntable based on topology optimization of continuum structure is investigated. Topology optimization could have better optimization efficiency because it can provide the optimized distribution of material and gain optimized structure in conceptual design phase of the structural design. In order to obtain lightweight and high stiffness structure a truss turntable based on topology optimization of continuum structure is presented and the validity of this lightweight structure is examined by finite element analysis. Comparing to the traditional welding steel turntable the lightweight turntable without changing the static displacement can lose 386.48 kg(lightweight ratio is 26.7%) and its first-order natural frequency raises from 167.02Hz to 173.71Hz. Meanwhile in other aspects this turntable also has better performance than traditional structure. 2012 IEEE.

The method of the system error modification of photoelectric theodolite of T type (EI CONFERENCE) 会议论文 OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
作者: Zhao L.; Zhang Y.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

The system error of photoelectric theodolite includes Visual axis error This paper ratiocinates the formula of Azimuth orientation error horizontal axis error elevation zero error and Visual axis error of Photoelectric theodolite of T type by triangle relation in space. Photoelectric theodolite of U type with main visual axis and auxiliary visual axis shoots images and inverse images of marks to obtain system error data. Error is less than 0.4 second by comparing error data of auxiliary visual axis with error data of main visual axis and the precision of two methods is identical. It has been validated that the method of error measurement of photoelectric theodolite of T type is right. 2012 IEEE. vertical axis error Azimuth orientation error elevation zero error

Tracking error estimate for theodolite based on general regression neural network (EI CONFERENCE) 会议论文 OAI收割
3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China
作者: Li M.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

To efficiently evaluate the tracking index of theodolite as well as avoiding influence resulted from higher harmonics when used opto dynamic target and use equivalent sine to evaluate the tracking index in this paper we resorted to General Regression Neural Network to do the new research on theodolite tracking accuracy evaluation method. Experimental results indicate that the method realized the equivalent sine to evaluate the tracking index of theodolite and avoided the higher harmonics influence with opto dynamic target. The research in this paper has important value to the engineering practice. (2012) Trans Tech Publications.

Study on time registration method for photoelectric theodolite data fusion (EI CONFERENCE) 会议论文 OAI收割
10th World Congress on Intelligent Control and Automation, WCICA 2012, July 6, 2012 - July 8, 2012, Beijing, China
Yang H.-T.; Gao H.-B.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

In range measurement theodolite and radar constitute a real-time tracking system at different sites to track the same target in the air and get useful information exactly and timely. As the optical theodolite and radar have different sampling frequency and measurement system the data is sent to the fusion center is asynchronous. This paper proposed a time registration method based on multi-sensor data using Wavelet neural network algorithm which not only better solved the basic problems of theodolite fusion tracking but also improve the efficiency of data fusion. Simulation experiment and comparison with other time registration method have shown the advantage of this method. 2012 IEEE.