TY - JOUR
AU - Yater, Wallace, M.
AB - Abstract This paper describes an automated data gathering system that makes 84 different measurements every 3 hours and records the results digitally on punched paper tape in binary decimal code. The data system is battery-operated because it is used in a remote area far from commercial power. The parameters measured include soil moisture, air and water temperature, and micro changes in tree radius in several different habitats in an upland deciduous forest. The measuring instruments or sensors have all been constructed in such a way that the parameter being measured changes an electrical resistance which is measured by a servo-operated Wheatstone bridge. Water levels, time of first and last rain drop, and many other parameters can be measured by the system with suitably constructed resistance-type sensors. This content is only available as a PDF. Author notes The author is a physicist with the U.S. Geological Survey, Arlington, Virginia. Publication authorized by the Director, U.S. Geological Survey. © 1971. American Institute of Biological Sciences
TI - An Automatic Recording Field Station for Collecting Environmental Data
JF - BioScience
DO - 10.2307/1295558
DA - 1971-01-01
UR - https://www.deepdyve.com/lp/oxford-university-press/an-automatic-recording-field-station-for-collecting-environmental-data-PZ4LcxZQDd
SP - 11
EP - 15
VL - 21
IS - 1
DP - DeepDyve
ER -