{"title":"在实验研究中使用平均计算机的辅助工具。","authors":"J Hodby","doi":"10.1088/0022-3735/2/9/310","DOIUrl":null,"url":null,"abstract":"The input analogue-to-digital converters of currently available averaging computers have a finite resolution. It is shown that in the presence of noise of 1/f character, this finite resolution sets an upper limit to the possible improvement of signal-to-noise ratio. This limit can be exceeded only if the d.c. level of the input signal is periodically reset. The performance of an electronic circuit designed to do this automatically is described.","PeriodicalId":16983,"journal":{"name":"Journal of Scientific Instruments","volume":"2 9","pages":"796-8"},"PeriodicalIF":0.0000,"publicationDate":"1969-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1088/0022-3735/2/9/310","citationCount":"2","resultStr":"{\"title\":\"An aid to the use of averaging computers in experimental investigations.\",\"authors\":\"J Hodby\",\"doi\":\"10.1088/0022-3735/2/9/310\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The input analogue-to-digital converters of currently available averaging computers have a finite resolution. It is shown that in the presence of noise of 1/f character, this finite resolution sets an upper limit to the possible improvement of signal-to-noise ratio. This limit can be exceeded only if the d.c. level of the input signal is periodically reset. The performance of an electronic circuit designed to do this automatically is described.\",\"PeriodicalId\":16983,\"journal\":{\"name\":\"Journal of Scientific Instruments\",\"volume\":\"2 9\",\"pages\":\"796-8\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1969-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1088/0022-3735/2/9/310\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Scientific Instruments\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1088/0022-3735/2/9/310\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Scientific Instruments","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1088/0022-3735/2/9/310","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An aid to the use of averaging computers in experimental investigations.
The input analogue-to-digital converters of currently available averaging computers have a finite resolution. It is shown that in the presence of noise of 1/f character, this finite resolution sets an upper limit to the possible improvement of signal-to-noise ratio. This limit can be exceeded only if the d.c. level of the input signal is periodically reset. The performance of an electronic circuit designed to do this automatically is described.
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