Two-wavelength, multipurpose, truly portable chlorophyll fluorometer and its application in field monitoring of phytoremediation

A. Barócsi, L. Kocsányi, S. Várkonyi, P. Richter, Z. Csintalan, K. Szente

Research output: Contribution to journalArticle

14 Citations (Scopus)


In this paper a compact, portable instrument is presented for the measurement of full chlorophyll fluorescence kinetics of plants at two different wavelengths. The instrument uses a 635 nm laser diode as a light source with variable gain driving that allows excitations at selectable actinic levels. The plant fluorescence is detected, at 690 nm and 735 nm, through a specially mixed three-branch optical fibre bundle. Large scale field monitoring of vegetation is made possible by the ulilization of PC/104-form embedded electronics including a low power, IBM PC/386-compatible single board computer (SBC) with non-volatile flash memory. Application of a general purpose SBC and task oriented programming offers in situ data evaluation making process control possible. The capabilities of the instrument were demonstrated in monitoring soil phytoremediation processes.

Original languageEnglish
Pages (from-to)717-729
Number of pages13
JournalMeasurement Science and Technology
Issue number6
Publication statusPublished - Jun 2000



  • Chlorophyll fluorometer
  • Kautsky kinetics
  • PC/104 form factor
  • Rfd values
  • Single board computer
  • Soil phytoremediation
  • Stress diagnostics

ASJC Scopus subject areas

  • Instrumentation
  • Engineering (miscellaneous)
  • Applied Mathematics

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