Modification of the azimuth control system in the LLMC
文献类型：会议论文
| 作者 | Li BH(李彬华); Yang L(杨磊); Chen LF(陈林飞); Mao Y(冒蔚); Chen LF(陈林飞) ; Li BH(李彬华); Mao W(冒蔚); Yang L(杨磊); Yang L(杨磊)
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| 出版日期 | 2000 |
| 会议名称 | Conference on Current Developments in Lens Design and Optical Systems Engineering |
| 会议日期 | 2000-08-02 |
| 会议地点 | SAN DIEGO, CA |
| 关键词 | LLMC azimuth transmission single chip microcontroller astrometry |
| 卷号 | 4093 |
| 页码 | 193-203 |
| 通讯作者 | Li, BH |
| 英文摘要 | A new control system of the azimuth transmission mechanism used in the Lower Latitude Meridian Circle (LLMC) is described in this paper. Because the original azimuth transmission mechanism causes too much vibration during the transposition of the horizontal axis of the instrument, we decided to modify the original system by two ways. One is to modify the lift mechanism and the azimuth transmission mechanism. The other is to replace the original stepper motors with a new type of stepper motor. According to the requirement of the new motor and its sine subdivided microstep driver, the original control system has been modified. The new system has an expansion output board and a new control program compared with the original one. The hardware architecture of the new system is described. The program in the single chip microcontroller is written in ASM, which is composed of 10 subroutines. The program in a host PC is written in C++. The methods using in controlling motors and skills in designing these programs are discussed. Two sketch flow charts of the control program are presented in the paper. Modification of the lift mechanism is also introduced. All this works make the vibration very slight. |
| 收录类别 | EI ; CPCI |
| 产权排序 | 第一完成单位 |
| 会议网址 | http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=915869 |
| 会议录 | Proceedings of SPIE - CURRENT DEVELOPMENTS IN LENS DESIGN AND OPTICAL SYSTEMS ENGINEERING
 |
| 会议录出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
| 学科主题 | Optics |
| 会议录出版地 | 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| ISBN号 | 0-8194-3738-7 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6733]  |
| 专题 | 云南天文台_天体测量及应用研究组 |
| 通讯作者 | Li BH(李彬华) |
| 推荐引用方式 GB/T 7714 | Li BH,Yang L,Chen LF,et al. Modification of the azimuth control system in the LLMC[C]. 见:Conference on Current Developments in Lens Design and Optical Systems Engineering. SAN DIEGO, CA. 2000-08-02.http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=915869. |
入库方式： OAI收割
来源：云南天文台
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