An electronic auxanometer for field use.

This paper describes the design and functioning of an electronic auxanometer designed for field use, and some results obtained with it. The changes in stem radius are monitored with a micrometer screw turned by an electirc motor. A potentiometer transforms the position of the screw into an electroni...

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Bibliographic Details
Main Authors: Hari, Jyrki, Hari, Pertti, Kanninen, Markku
Format: Article
Language:English
Published: Finnish Society of Forest Science 1978-01-01
Series:Silva Fennica
Online Access:https://www.silvafennica.fi/article/5012
Description
Summary:This paper describes the design and functioning of an electronic auxanometer designed for field use, and some results obtained with it. The changes in stem radius are monitored with a micrometer screw turned by an electirc motor. A potentiometer transforms the position of the screw into an electronic signal, which is recorded. The accuracy of the device is approximately 1â2 μm. Field experiments with the auxanometer are described and discussed. The accuracy of the device was found to be sufficient for measuring hourly changes in stem radius. The PDF includes a summary in Finnish.
ISSN:2242-4075