Connecting to concrete: wireless monitoring of chloride ions in concrete structures

Yawar Abbas, Bas ten Have, Gerrit I. Hoekstra, Arjan Douma, Douwe de Bruijn, Wouter Olthuis, Albert van den Berg

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)

    Abstract

    For the first time, chloride ions are measured wirelessly in concrete. The half-cell potential of a silver/silver chloride (Ag/AgCl) electrode, which corresponds to the concentration of chloride ions, is measured wirelessly. The sensor system (the Ag/AgCl and a reference electrode) is embedded in concrete, and a hand-held readout device is used. Wireless communication is achieved by an inductive coupling (reflected-impedance) between the coils of the sensor and the readout. The resonance frequency of the sensor coil changes due to the change in the capacitance of a varactor element connected to Ag/AgCl electrode system. The capacitance of the varactor increases with the increase in chloride ion concentration (20 pF/decade). Furthermore, the capacitance can be reliability measured up to a distance of 35 mm between sensor and readout coil. No battery is needed to power the sensor terminal, which makes it feasible to embed it in concrete structures
    Original languageUndefined
    Title of host publicationEurosensors 2015
    PublisherElsevier
    Pages965-968
    Number of pages4
    DOIs
    Publication statusPublished - 2015
    EventEurosensors XXIX 2015 - Freiburg, Germany
    Duration: 6 Sep 20159 Sep 2015

    Publication series

    NameEurosensors
    PublisherElsevier Ltd
    Volume120
    ISSN (Print)1877-7058
    ISSN (Electronic)1877-7058

    Conference

    ConferenceEurosensors XXIX 2015
    CountryGermany
    CityFreiburg
    Period6/09/159/09/15

    Keywords

    • EWI-26725
    • IR-99202
    • METIS-315544

    Cite this

    Abbas, Y., ten Have, B., Hoekstra, G. I., Douma, A., de Bruijn, D., Olthuis, W., & van den Berg, A. (2015). Connecting to concrete: wireless monitoring of chloride ions in concrete structures. In Eurosensors 2015 (pp. 965-968). (Eurosensors; Vol. 120). Elsevier. https://doi.org/10.1016/j.proeng.2015.08.827
    Abbas, Yawar ; ten Have, Bas ; Hoekstra, Gerrit I. ; Douma, Arjan ; de Bruijn, Douwe ; Olthuis, Wouter ; van den Berg, Albert. / Connecting to concrete: wireless monitoring of chloride ions in concrete structures. Eurosensors 2015. Elsevier, 2015. pp. 965-968 (Eurosensors).
    @inproceedings{3e663a97fc0b4e78a4716f22ce28d077,
    title = "Connecting to concrete: wireless monitoring of chloride ions in concrete structures",
    abstract = "For the first time, chloride ions are measured wirelessly in concrete. The half-cell potential of a silver/silver chloride (Ag/AgCl) electrode, which corresponds to the concentration of chloride ions, is measured wirelessly. The sensor system (the Ag/AgCl and a reference electrode) is embedded in concrete, and a hand-held readout device is used. Wireless communication is achieved by an inductive coupling (reflected-impedance) between the coils of the sensor and the readout. The resonance frequency of the sensor coil changes due to the change in the capacitance of a varactor element connected to Ag/AgCl electrode system. The capacitance of the varactor increases with the increase in chloride ion concentration (20 pF/decade). Furthermore, the capacitance can be reliability measured up to a distance of 35 mm between sensor and readout coil. No battery is needed to power the sensor terminal, which makes it feasible to embed it in concrete structures",
    keywords = "EWI-26725, IR-99202, METIS-315544",
    author = "Yawar Abbas and {ten Have}, Bas and Hoekstra, {Gerrit I.} and Arjan Douma and {de Bruijn}, Douwe and Wouter Olthuis and {van den Berg}, Albert",
    note = "10.1016/j.proeng.2015.08.827",
    year = "2015",
    doi = "10.1016/j.proeng.2015.08.827",
    language = "Undefined",
    series = "Eurosensors",
    publisher = "Elsevier",
    pages = "965--968",
    booktitle = "Eurosensors 2015",

    }

    Abbas, Y, ten Have, B, Hoekstra, GI, Douma, A, de Bruijn, D, Olthuis, W & van den Berg, A 2015, Connecting to concrete: wireless monitoring of chloride ions in concrete structures. in Eurosensors 2015. Eurosensors, vol. 120, Elsevier, pp. 965-968, Eurosensors XXIX 2015, Freiburg, Germany, 6/09/15. https://doi.org/10.1016/j.proeng.2015.08.827

    Connecting to concrete: wireless monitoring of chloride ions in concrete structures. / Abbas, Yawar; ten Have, Bas; Hoekstra, Gerrit I.; Douma, Arjan; de Bruijn, Douwe; Olthuis, Wouter; van den Berg, Albert.

    Eurosensors 2015. Elsevier, 2015. p. 965-968 (Eurosensors; Vol. 120).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    TY - GEN

    T1 - Connecting to concrete: wireless monitoring of chloride ions in concrete structures

    AU - Abbas, Yawar

    AU - ten Have, Bas

    AU - Hoekstra, Gerrit I.

    AU - Douma, Arjan

    AU - de Bruijn, Douwe

    AU - Olthuis, Wouter

    AU - van den Berg, Albert

    N1 - 10.1016/j.proeng.2015.08.827

    PY - 2015

    Y1 - 2015

    N2 - For the first time, chloride ions are measured wirelessly in concrete. The half-cell potential of a silver/silver chloride (Ag/AgCl) electrode, which corresponds to the concentration of chloride ions, is measured wirelessly. The sensor system (the Ag/AgCl and a reference electrode) is embedded in concrete, and a hand-held readout device is used. Wireless communication is achieved by an inductive coupling (reflected-impedance) between the coils of the sensor and the readout. The resonance frequency of the sensor coil changes due to the change in the capacitance of a varactor element connected to Ag/AgCl electrode system. The capacitance of the varactor increases with the increase in chloride ion concentration (20 pF/decade). Furthermore, the capacitance can be reliability measured up to a distance of 35 mm between sensor and readout coil. No battery is needed to power the sensor terminal, which makes it feasible to embed it in concrete structures

    AB - For the first time, chloride ions are measured wirelessly in concrete. The half-cell potential of a silver/silver chloride (Ag/AgCl) electrode, which corresponds to the concentration of chloride ions, is measured wirelessly. The sensor system (the Ag/AgCl and a reference electrode) is embedded in concrete, and a hand-held readout device is used. Wireless communication is achieved by an inductive coupling (reflected-impedance) between the coils of the sensor and the readout. The resonance frequency of the sensor coil changes due to the change in the capacitance of a varactor element connected to Ag/AgCl electrode system. The capacitance of the varactor increases with the increase in chloride ion concentration (20 pF/decade). Furthermore, the capacitance can be reliability measured up to a distance of 35 mm between sensor and readout coil. No battery is needed to power the sensor terminal, which makes it feasible to embed it in concrete structures

    KW - EWI-26725

    KW - IR-99202

    KW - METIS-315544

    U2 - 10.1016/j.proeng.2015.08.827

    DO - 10.1016/j.proeng.2015.08.827

    M3 - Conference contribution

    T3 - Eurosensors

    SP - 965

    EP - 968

    BT - Eurosensors 2015

    PB - Elsevier

    ER -

    Abbas Y, ten Have B, Hoekstra GI, Douma A, de Bruijn D, Olthuis W et al. Connecting to concrete: wireless monitoring of chloride ions in concrete structures. In Eurosensors 2015. Elsevier. 2015. p. 965-968. (Eurosensors). https://doi.org/10.1016/j.proeng.2015.08.827