Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 154, Issue 1, Pages 41-45Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.11.019
Keywords
Water content sensor; Plant water content; In situ measurement; Irrigation agriculture; Polyethersulfone
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A needle-type water content sensor with a polyethersulfone (FES, poly(4-phenoxy-co-4-benzensulfone)) polymer membrane is proposed for the low-invasive, direct in situ measurement of plant water content (PWC). When the PWC sensor is inserted into a plant, the electrical impedance of PES is determined by the amount of absorbed water, which indicates the PWC. In situ measurement of PWC was successfully demonstrated for a strawberry plant (Fragaria x ananassa) and the application feasibility of the sensor to in situ PWC measurement for irrigation agriculture was verified. (C) 2009 Elsevier B.V. All rights reserved.
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