Research on Machining System Design and Machining Method of Micro Optical Aspheric Surface

2007 ◽  
Author(s):  
Hao Huang ◽  
Yinbiao Guo
Keyword(s):  
System Design ◽  
High Precision ◽  
Optical System ◽  
Error Compensation ◽  
High Performance ◽  
Technical Condition ◽  
Aspheric Surface ◽  
Precision Manufacturing ◽  
Surface Machining ◽  
Machining System

At present high precision aspheric surface has been widely used in high performance optical system, but at current technical condition, the machining of high precision aspheric surface is still difficult. According to the requirement of high precision micro aspheric surface machining, three machining method of spherical wheel machining in micro axisymmetric aspheric has been put forward. And a high precision manufacturing and measurement system based on the machining method mentioned above has been designed and realized. It adopts the technology of tool uniform wear and error compensation, can be chose different machining method, and reach to the requirement of high precision micro aspheric surface machining.

High Performance Complex Optical System Design for Sun Sensor

2008 ◽  
Vol 28 (2) ◽  
pp. 344-348 ◽  
Author(s):  
江洁 Jiang Jie ◽  
温志明 Wen Zhiming ◽  
张广军 Zhang Guangjun ◽  
樊巧云 Fan Qiaoyun
Keyword(s):  
System Design ◽  
Optical System ◽  
High Performance ◽  
Optical System Design ◽  
Sun Sensor

Optical System Design of LCOS-Based and High Precision Dynamic Star Simulator

2014 ◽  
Vol 41 (7) ◽  
pp. 0716003
Author(s):  
陈启梦 Chen Qimeng ◽  
张国玉 Zhang Guoyu ◽  
孙向阳 Sun Xiangyang ◽  
王国名 Wang Guoming ◽  
王哲 Wang Zhe
Keyword(s):  
System Design ◽  
High Precision ◽  
Optical System ◽  
Optical System Design

Optical System Design of High-Precision Static Star Simulator with Large Field of View

2014 ◽  
Vol 51 (5) ◽  
pp. 052202
Author(s):  
陈启梦 Chen Qimeng ◽  
张国玉 Zhang Guoyu ◽  
王哲 Wang Zhe ◽  
张健 Zhang Jian
Keyword(s):  
System Design ◽  
High Precision ◽  
Optical System ◽  
Field Of View ◽  
Large Field ◽  
Optical System Design

Optical System Design of Star Camera with High Precision Better than Second Level

2015 ◽  
Vol 42 (7) ◽  
pp. 0716001
Author(s):  
伍雁雄 Wu Yanxiong ◽  
吴洪波 Wu Hongbo ◽  
张继真 Zhang Jizhen ◽  
王灵杰 Wang Lingjie ◽  
朱杨 Zhu Yang ◽  
...  
Keyword(s):  
System Design ◽  
High Precision ◽  
Optical System ◽  
Optical System Design ◽  
Better Than ◽  
Star Camera

Research on High-Precision Measurement Platform for Optical Aspheric Surface and Corresponding Error Compensation

2010 ◽  
Vol 97-101 ◽  
pp. 4277-4281
Author(s):  
Xiao Long Ke ◽  
Yin Biao Guo ◽  
Kun Pan ◽  
Yong Lu Zhu ◽  
Wei Luo
Keyword(s):  
High Precision ◽  
Precision Measurement ◽  
Error Compensation ◽  
Aspheric Surface ◽  
High Precision Measurement ◽  
Linear Motors ◽  
Probe Radius ◽  
Control Scheme ◽  
Probe Radius Compensation ◽  
Radius Compensation

With a hardware and software control scheme which including high-precision linear motors, contacting and non-contacting measurement sensor and a new developed of measuring software, this paper designs and establishes a high-precision measurement platform. This paper not only implements the hardware build, measuring software development, but also discusses corresponding error compensation, for example, probe radius compensation, rough error canceling and so on. The experimental results indicate that the measurement platform is suitable for high-precision measurement for optical aspheric surface.

The Course Angle Indicator Based on Magnetic Resistance Sensor

2013 ◽  
Vol 694-697 ◽  
pp. 1078-1082
Author(s):  
Hua Sun ◽  
Pei Cheng ◽  
Ying Wang ◽  
Hao Jun Li
Keyword(s):  
Error Analysis ◽  
System Design ◽  
High Precision ◽  
Error Compensation ◽  
Small Volume ◽  
Angle Measurement ◽  
Digital Display ◽  
Design And Implementation ◽  
Magnetic Resistance ◽  
Angle Indicator

A kind of digital compass based on magnetic resistance sensor was designed. The principle of the course angle measurement based on magnetic resistance sensor was analyzed, and it elaborates the scheme of course angle system design and implementation. FPGA was chosen as processor, and the embedded kernel was built up based on SOPC. The course angle measurement and digital display were realized. The error compensation was used in this system. The error analysis and contrast were given. This kind of course angle indicator is small volume and high precision. It can be applied to different carrier, and has high universality and practical value.

scholarly journals Concrete Examination of 100-Year-Old Bridge Structure above the Kłodnica River Flowing through the Agglomeration of Upper Silesia in Gliwice: A Case Study

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 981
Author(s):  
Barbara Słomka-Słupik ◽  
Jacek Podwórny ◽  
Beata Grynkiewicz-Bylina ◽  
Marek Salamak ◽  
Bibianna Bartoszek ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Chloride Content ◽  
Technical Condition ◽  
Inductively Coupled ◽  
Bridge Safety ◽  
Free Chloride ◽  
Management Processes ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

The article analyzes the composition of concrete taken from various elements from a 100-year-old bridge in South Poland, so as to analyze its technical condition. The main methods applied during experimental work were: Designation of pH, free chloride content, salinity, XRD and SEM examinations, as well as metals determination using inductively coupled plasma mass spectrometry (ICP­MS), high-performance liquid chromatography (HPLC)-ICP-MS, and cold-vapor atomic absorption spectroscopy (CV-AAS). The concrete of the bridge was strongly carbonated and decalcified with an extremely high content of chlorides. The pH of the concrete was in a range from 10.5 to 12.0. Acid soluble components were between 9.9% and 17.6%. Typical sulfate corrosion phases of concrete were not detected. Friedels’ salt was found only at the extremity of an arch. The crown block was corroded to the greatest extent. Various heavy metals were absorbed into the concrete, likely from previous centuries, when environmental protection policy was poor. The applied research methodology can be used on bridges exposed to specific external influences. The acquired knowledge can be useful in the management processes of the bridge infrastructure. It can help in making decisions about decommissioning or extending the life cycle of the bridge. This work should also sensitize researchers and decision-makers to the context of “bridge safety”.

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