{"title":"一种亚音频延时电路","authors":"C. Morrill","doi":"10.1109/IREPGELC.1954.6499421","DOIUrl":null,"url":null,"abstract":"Through the use of an electronic differential analyzer arranged to give a sixth-order approximation of the Laplace shift operator, it is possible to reproduce an input signal and delay it T seconds when the highest angular frequency present in the input signal does not exceed 12/T. Inaccuracy due to nonlinear phase shift is less than 2% under these conditions. This device requires only linear computing elements, and will permit delays of seconds within a finite frequency spectrum. An application to a closed loop industrial control problem is cited and other applications are suggested.","PeriodicalId":304144,"journal":{"name":"Trans. I R E Prof. Group Electron. Comput.","volume":"120 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1954-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"A sub-audio time delay circuit\",\"authors\":\"C. Morrill\",\"doi\":\"10.1109/IREPGELC.1954.6499421\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Through the use of an electronic differential analyzer arranged to give a sixth-order approximation of the Laplace shift operator, it is possible to reproduce an input signal and delay it T seconds when the highest angular frequency present in the input signal does not exceed 12/T. Inaccuracy due to nonlinear phase shift is less than 2% under these conditions. This device requires only linear computing elements, and will permit delays of seconds within a finite frequency spectrum. An application to a closed loop industrial control problem is cited and other applications are suggested.\",\"PeriodicalId\":304144,\"journal\":{\"name\":\"Trans. I R E Prof. Group Electron. Comput.\",\"volume\":\"120 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1954-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Trans. I R E Prof. Group Electron. Comput.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IREPGELC.1954.6499421\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trans. I R E Prof. Group Electron. Comput.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IREPGELC.1954.6499421","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Through the use of an electronic differential analyzer arranged to give a sixth-order approximation of the Laplace shift operator, it is possible to reproduce an input signal and delay it T seconds when the highest angular frequency present in the input signal does not exceed 12/T. Inaccuracy due to nonlinear phase shift is less than 2% under these conditions. This device requires only linear computing elements, and will permit delays of seconds within a finite frequency spectrum. An application to a closed loop industrial control problem is cited and other applications are suggested.
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