Vacuum Tube Circuit to Measure the Logarithm of a Direct Current
A circuit, using a single tube, and having an output voltage which is proportional to the logarithm of a direct current input, is described. The input current range extends from less than 10−7 ampere to 10−5 ampere if a closely linear logarithmic relationship is desired; and from 10−8 to 10−3 ampere...
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| Veröffentlicht in: | Review of scientific instruments 1939-11, Vol.10 (11), p.336-339 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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