Optical sensors for monitoring water uptake in plants

Author

Hadjiloucas, Sillas ; Karatzas, Lucas S. ; Keating, David A. ; Usher, Mike J.

Author_Institution

Dept. of Cybern., Reading Univ., UK

Volume

13

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1421

Lastpage

1428

Abstract

The monitoring of water uptake in plants is becoming increasingly important. Optical sensors offer considerable advantages over conventional methods and several sensors have been developed including an optical potometer that monitors water uptake from individual roots, the detection of xylem cavitation using audio acoustic emissions with an interferometric force feedback microphone, and an optical fiber displacement transducer that detects changes in leaf thickness in relation to leaf-water potential

Keywords

acoustic emission; agriculture; bioacoustics; biological techniques; biosensors; botany; cellular biophysics; displacement measurement; fibre optic sensors; light interferometry; optical sensors; transpiration; water; audio acoustic emissions; crop yield; individual roots; interferometric force feedback microphone; leaf thickness; leaf-water potential; optical fiber displacement transducer; optical potometer; plants; water uptake monitoring; xylem cavitation; Acoustic emission; Acoustic sensors; Acoustic signal detection; Force feedback; Monitoring; Optical feedback; Optical fiber sensors; Optical interferometry; Optical sensors; Stimulated emission;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.400707

Filename

400707