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PubMed · 10237006

Low-frequency white noise generators for biomedical systems.

J R Singer·I Oviedo
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Abstract

There is a need for electronic noise sources for investigation of biological and medical research equipment. Such sources need to provide a "white noise" output with a frequency spectrum flat from one to one hundred Hertz. The present paper describes two designs of such sources. The spectra are measured and compared. One course is the reverse-biased junction of a transistor base-emitter junction operating in the avalanche mode. The second source is a MOS IC pseudo-random digital signal. In both cases, the spectra are presented. The choice between the two sources depends upon the application. For most applications, either source is shown to be satisfactory.

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Electronics, MedicalNoiseJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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J R Singer, I Oviedo. Low-frequency white noise generators for biomedical systems.. https://doi.org/10.1097/00004669-197804000-00010

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