A Differentiator for use with Electronic Auxanometers
Autor: | P. V. Biscoe, R. A. Saffell, J. N. Gallagher |
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Rok vydání: | 1979 |
Předmět: | |
Zdroj: | Journal of Experimental Botany. 30:199-204 |
ISSN: | 1460-2431 0022-0957 |
DOI: | 10.1093/jxb/30.1.199 |
Popis: | An electronic differentiator was designed to display directly, in units of mm h~ the extension rate of leaves measured with displacement transducers. The differentiator calculates the mean extension rate occurring over predetermined time intervals of 0-25 or 1-0 h and discriminates rates of 0-01 mm hr_1. It reduces considerably the work needed to determine mean extension rates from chart records of transducer output voltage and improves the accuracy of calculated extension rates. |
Databáze: | OpenAIRE |
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