Wide scale indicator for weak current amplitudes within a predetermined range above a minimum amplitude

作者： Robert L Watters

DOI:

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参考文章(7)

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Jack R Gardner, Linear d. c. micromicroammeter ,(1958)

Ralph M Rowell, Short range electrical measuring apparatus ,(1940)

William E Crowl, Electrical measuring instrument and circuits therefor ,(1944)

Alexander A Gorski, Signal amplitude measuring system ,(1952)

Joseph D Shaw, Electrical measuring device ,(1946)