A microoptode array for fine-scale measurement of oxygen distribution

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

A microoptode array for fine-scale measurement of oxygen distribution. / Holst, Gerhard; Glud, Ronnie N.; Kühl, Michael; Klimant, Ingo.

In: Sensors and Actuators, B: Chemical, Vol. 38, No. 1-3, 1997, p. 122-129.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Holst, G, Glud, RN, Kühl, M & Klimant, I 1997, 'A microoptode array for fine-scale measurement of oxygen distribution', Sensors and Actuators, B: Chemical, vol. 38, no. 1-3, pp. 122-129. https://doi.org/10.1016/S0925-4005(97)80181-5

APA

Holst, G., Glud, R. N., Kühl, M., & Klimant, I. (1997). A microoptode array for fine-scale measurement of oxygen distribution. Sensors and Actuators, B: Chemical, 38(1-3), 122-129. https://doi.org/10.1016/S0925-4005(97)80181-5

Vancouver

Holst G, Glud RN, Kühl M, Klimant I. A microoptode array for fine-scale measurement of oxygen distribution. Sensors and Actuators, B: Chemical. 1997;38(1-3):122-129. https://doi.org/10.1016/S0925-4005(97)80181-5

Author

Holst, Gerhard ; Glud, Ronnie N. ; Kühl, Michael ; Klimant, Ingo. / A microoptode array for fine-scale measurement of oxygen distribution. In: Sensors and Actuators, B: Chemical. 1997 ; Vol. 38, No. 1-3. pp. 122-129.

Bibtex

@article{0b6bf9235e634aa5a2cc0c44e678bb5a,
title = "A microoptode array for fine-scale measurement of oxygen distribution",
abstract = "A new microoptode array is presented that provides simultaneous measurement with eight oxygen microoptodes using a simple optical setup and a phase-angle detection principle. The measuring system consists of: (1) an optical unit with eight oxygen microoptodes, a special fiber-coupler array, optical filters, lenses, light sources (light-emitting diodes) and light detectors (photodiodes, photomultiplier tube); (2) a signal-processing unit with analog signal processing (phase-angle detection, filtering) and digital signal processing (control, data storage and display). The oxygen concentration is measured with tapered silica-glass fibers (tip diameter 20-30 μm) by the dynamic quenching of a luminophore. A phase-modulation technique is used to determine the phase-angle shift that is caused by the fluorescence lifetime when the indicator is excited sinusoidally. In a time multiplex mode each sensor signal is sampled. This multisensor array system is designed for the investigation of the oxygen distribution in biofilms and aquatic sediments. The new measuring system and first applications in artificial and natural systems are presented.",
keywords = "Fluorescence lifetime sensing, Fluorescence quenching, Microoptodes, Oxygen microsensors, Oxygen optodes, Phase modulation",
author = "Gerhard Holst and Glud, {Ronnie N.} and Michael K{\"u}hl and Ingo Klimant",
year = "1997",
doi = "10.1016/S0925-4005(97)80181-5",
language = "English",
volume = "38",
pages = "122--129",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "1-3",

}

RIS

TY - JOUR

T1 - A microoptode array for fine-scale measurement of oxygen distribution

AU - Holst, Gerhard

AU - Glud, Ronnie N.

AU - Kühl, Michael

AU - Klimant, Ingo

PY - 1997

Y1 - 1997

N2 - A new microoptode array is presented that provides simultaneous measurement with eight oxygen microoptodes using a simple optical setup and a phase-angle detection principle. The measuring system consists of: (1) an optical unit with eight oxygen microoptodes, a special fiber-coupler array, optical filters, lenses, light sources (light-emitting diodes) and light detectors (photodiodes, photomultiplier tube); (2) a signal-processing unit with analog signal processing (phase-angle detection, filtering) and digital signal processing (control, data storage and display). The oxygen concentration is measured with tapered silica-glass fibers (tip diameter 20-30 μm) by the dynamic quenching of a luminophore. A phase-modulation technique is used to determine the phase-angle shift that is caused by the fluorescence lifetime when the indicator is excited sinusoidally. In a time multiplex mode each sensor signal is sampled. This multisensor array system is designed for the investigation of the oxygen distribution in biofilms and aquatic sediments. The new measuring system and first applications in artificial and natural systems are presented.

AB - A new microoptode array is presented that provides simultaneous measurement with eight oxygen microoptodes using a simple optical setup and a phase-angle detection principle. The measuring system consists of: (1) an optical unit with eight oxygen microoptodes, a special fiber-coupler array, optical filters, lenses, light sources (light-emitting diodes) and light detectors (photodiodes, photomultiplier tube); (2) a signal-processing unit with analog signal processing (phase-angle detection, filtering) and digital signal processing (control, data storage and display). The oxygen concentration is measured with tapered silica-glass fibers (tip diameter 20-30 μm) by the dynamic quenching of a luminophore. A phase-modulation technique is used to determine the phase-angle shift that is caused by the fluorescence lifetime when the indicator is excited sinusoidally. In a time multiplex mode each sensor signal is sampled. This multisensor array system is designed for the investigation of the oxygen distribution in biofilms and aquatic sediments. The new measuring system and first applications in artificial and natural systems are presented.

KW - Fluorescence lifetime sensing

KW - Fluorescence quenching

KW - Microoptodes

KW - Oxygen microsensors

KW - Oxygen optodes

KW - Phase modulation

U2 - 10.1016/S0925-4005(97)80181-5

DO - 10.1016/S0925-4005(97)80181-5

M3 - Journal article

AN - SCOPUS:0030646652

VL - 38

SP - 122

EP - 129

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

IS - 1-3

ER -

ID: 201683311