{"title":"桥稳定振荡器","authors":"L. A. Meacham","doi":"10.1109/JRPROC.1938.228725","DOIUrl":null,"url":null,"abstract":"A new type of constant-frequency oscillator of very high stability is presented. The frequency-controlling resonant element is used as one arm of a Wheatstone resistance bridge. Kept in balance automatically by a thermally controlled arm, this bridge provides constancy of output amplitude, purity of wave form, and stabilization against fluctuations in power supply or changes in circuit elements. A simple one-tube circuit has operated consistently with no short-time frequency variations greater than ± 2 parts in 108. Convenient means are provided for making precision adjustments over a narrow range of frequencies to compensate for longtime aging effects. Description of the circuit is followed by a brief linear analysis and an account of experimental results. Operating records are given for a 100-kilocycle oscillator.","PeriodicalId":54574,"journal":{"name":"Proceedings of the Institute of Radio Engineers","volume":"37 1","pages":"1278-1294"},"PeriodicalIF":0.0000,"publicationDate":"1938-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/JRPROC.1938.228725","citationCount":"54","resultStr":"{\"title\":\"The Bridge-Stabilized Oscillator\",\"authors\":\"L. A. Meacham\",\"doi\":\"10.1109/JRPROC.1938.228725\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new type of constant-frequency oscillator of very high stability is presented. The frequency-controlling resonant element is used as one arm of a Wheatstone resistance bridge. Kept in balance automatically by a thermally controlled arm, this bridge provides constancy of output amplitude, purity of wave form, and stabilization against fluctuations in power supply or changes in circuit elements. A simple one-tube circuit has operated consistently with no short-time frequency variations greater than ± 2 parts in 108. Convenient means are provided for making precision adjustments over a narrow range of frequencies to compensate for longtime aging effects. Description of the circuit is followed by a brief linear analysis and an account of experimental results. Operating records are given for a 100-kilocycle oscillator.\",\"PeriodicalId\":54574,\"journal\":{\"name\":\"Proceedings of the Institute of Radio Engineers\",\"volume\":\"37 1\",\"pages\":\"1278-1294\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1938-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1109/JRPROC.1938.228725\",\"citationCount\":\"54\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Institute of Radio Engineers\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/JRPROC.1938.228725\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institute of Radio Engineers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/JRPROC.1938.228725","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new type of constant-frequency oscillator of very high stability is presented. The frequency-controlling resonant element is used as one arm of a Wheatstone resistance bridge. Kept in balance automatically by a thermally controlled arm, this bridge provides constancy of output amplitude, purity of wave form, and stabilization against fluctuations in power supply or changes in circuit elements. A simple one-tube circuit has operated consistently with no short-time frequency variations greater than ± 2 parts in 108. Convenient means are provided for making precision adjustments over a narrow range of frequencies to compensate for longtime aging effects. Description of the circuit is followed by a brief linear analysis and an account of experimental results. Operating records are given for a 100-kilocycle oscillator.
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