{"title":"北京天文台60厘米望远镜的天球伺服系统","authors":"Shen Pan-an","doi":"10.1016/0146-6364(80)90053-5","DOIUrl":null,"url":null,"abstract":"<div><p>A tracking system has been installed on the dome of the 60-cm telescope of the Peking observatory. The system uses rotating transformers to transform the coordinates, a relay-operated servo system, with a squirrel-cage induction motor as the executing component. The control system is a non-linear system. In addition to D.C. motor braking, position and velocity feedbacks are used to eliminate self-excited oscillations. The systematic error of the system does not exceed ±1°. The system costs less and is more reliable than a D.C. motor system.</p></div>","PeriodicalId":100241,"journal":{"name":"Chinese Astronomy","volume":"4 2","pages":"Pages 207-212"},"PeriodicalIF":0.0000,"publicationDate":"1980-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6364(80)90053-5","citationCount":"0","resultStr":"{\"title\":\"The astrodome servo system of the 60-cm telescope of the Peking observatory\",\"authors\":\"Shen Pan-an\",\"doi\":\"10.1016/0146-6364(80)90053-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A tracking system has been installed on the dome of the 60-cm telescope of the Peking observatory. The system uses rotating transformers to transform the coordinates, a relay-operated servo system, with a squirrel-cage induction motor as the executing component. The control system is a non-linear system. In addition to D.C. motor braking, position and velocity feedbacks are used to eliminate self-excited oscillations. The systematic error of the system does not exceed ±1°. The system costs less and is more reliable than a D.C. motor system.</p></div>\",\"PeriodicalId\":100241,\"journal\":{\"name\":\"Chinese Astronomy\",\"volume\":\"4 2\",\"pages\":\"Pages 207-212\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0146-6364(80)90053-5\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Astronomy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0146636480900535\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Astronomy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0146636480900535","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The astrodome servo system of the 60-cm telescope of the Peking observatory
A tracking system has been installed on the dome of the 60-cm telescope of the Peking observatory. The system uses rotating transformers to transform the coordinates, a relay-operated servo system, with a squirrel-cage induction motor as the executing component. The control system is a non-linear system. In addition to D.C. motor braking, position and velocity feedbacks are used to eliminate self-excited oscillations. The systematic error of the system does not exceed ±1°. The system costs less and is more reliable than a D.C. motor system.
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