| Autor: |
Wills, L. J., Ly, Nhan G. |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments; Nov85, Vol. 56 Issue 11, p2157, 3p |
| Abstrakt: |
A new circuit is introduced to generate the logarithmic time base function with good resolution. By using a single-chip microcomputer with EPROM program storage, the circuitry is simplified and can be easily reproduced. The output function covers more than six decades of time and has 590 discrete points per decade with an accuracy of one discrete point per decade or ±0.16%. The design overcomes two well-known problems in using the logarithmic time base. First because the time increments are derived from a real-time register there is a precise reference for zero time, and second a series of time base interval marks are output for correctly calibrating the time axis. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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