Needle-type in situ water content sensor with polyethersulfone polymer membrane

T. Iwashita, H. Katayanagi, Norihisa Miki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A needle-type water content sensor with a polyethersulfone (PES, 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 × ananassa) and the application feasibility of the sensor to in situ PWC measurement for irrigation agriculture was verified.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume154
Issue number1
DOIs
Publication statusPublished - 2011 May 20
Externally publishedYes

Fingerprint

needles
Needles
Water content
moisture content
Polymers
membranes
Membranes
sensors
Sensors
polymers
in situ measurement
irrigation
Acoustic impedance
agriculture
electrical impedance
Irrigation
Agriculture
polyether sulfone
Water
water

Keywords

  • In situ measurement
  • Irrigation agriculture
  • Plant water content
  • Polyethersulfone
  • Water content sensor

ASJC Scopus subject areas

  • Instrumentation
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Needle-type in situ water content sensor with polyethersulfone polymer membrane. / Iwashita, T.; Katayanagi, H.; Miki, Norihisa.

In: Sensors and Actuators, B: Chemical, Vol. 154, No. 1, 20.05.2011, p. 41-45.

Research output: Contribution to journalArticle

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