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Compact personal distributed wearable exposimeter

Peter Vanveerdeghem (UGent) , Patrick Van Torre (UGent) , Arno Thielens (UGent) , Jos Knockaert (UGent) , Wout Joseph (UGent) and Hendrik Rogier (UGent)
(2015) IEEE SENSORS JOURNAL. 15(8). p.4393-4401
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Abstract
A compact wearable personal distributed exposimeter (PDE) is proposed, sensing the power density of incident radio frequency (RF) fields on the body of a human. In contrast to current commercial exposimeters, our PDE, being composed of multiple compact personal wearable RF exposimeter sensor modules, minimizes uncertainties caused by the proximity of the body, the specific antenna used, and the exact position of the exposimeter. For unobtrusive deployment inside a jacket, each individual exposimeter sensor module is specifically implemented on the feedplane of a textile patch antenna. The new wearable sensor module's high-resolution logarithmic detector logs RF signal levels. Next, on-board flash memory records minimum, maximum, and average exposure data over a time span of more than two weeks, at a one-second sample period. Sample-level synchronization of each individual exposimeter sensor module enables combining of measurements collected by different nodes. The system is first calibrated in an anechoic chamber, and then compared with a commercially available single-unit exposimeter. Next, the PDE is validated in realistic conditions, by measuring the average RF power density on a human during a walk in an urban environment and comparing the results to spectrum analyzer measurements with a calibrated antenna.
Keywords
BODY, PATCH ANTENNA, ENVIRONMENTS, EXPOSURE METERS, ELECTROMAGNETIC-FIELDS, CALIBRATION, SAR, Dosimetry, radio frequency exposure, textile antennas, wearable electronics

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Citation

Please use this url to cite or link to this publication:

Chicago
Vanveerdeghem, Peter, Patrick Van Torre, Arno Thielens, Jos Knockaert, Wout Joseph, and Hendrik Rogier. 2015. “Compact Personal Distributed Wearable Exposimeter.” Ieee Sensors Journal 15 (8): 4393–4401.
APA
Vanveerdeghem, P., Van Torre, P., Thielens, A., Knockaert, J., Joseph, W., & Rogier, H. (2015). Compact personal distributed wearable exposimeter. IEEE SENSORS JOURNAL, 15(8), 4393–4401.
Vancouver
1.
Vanveerdeghem P, Van Torre P, Thielens A, Knockaert J, Joseph W, Rogier H. Compact personal distributed wearable exposimeter. IEEE SENSORS JOURNAL. 2015;15(8):4393–401.
MLA
Vanveerdeghem, Peter et al. “Compact Personal Distributed Wearable Exposimeter.” IEEE SENSORS JOURNAL 15.8 (2015): 4393–4401. Print.
@article{6940010,
  abstract     = {A compact wearable personal distributed exposimeter (PDE) is proposed, sensing the power density of incident radio frequency (RF) fields on the body of a human. In contrast to current commercial exposimeters, our PDE, being composed of multiple compact personal wearable RF exposimeter sensor modules, minimizes uncertainties caused by the proximity of the body, the specific antenna used, and the exact position of the exposimeter. For unobtrusive deployment inside a jacket, each individual exposimeter sensor module is specifically implemented on the feedplane of a textile patch antenna. The new wearable sensor module's high-resolution logarithmic detector logs RF signal levels. Next, on-board flash memory records minimum, maximum, and average exposure data over a time span of more than two weeks, at a one-second sample period. Sample-level synchronization of each individual exposimeter sensor module enables combining of measurements collected by different nodes. The system is first calibrated in an anechoic chamber, and then compared with a commercially available single-unit exposimeter. Next, the PDE is validated in realistic conditions, by measuring the average RF power density on a human during a walk in an urban environment and comparing the results to spectrum analyzer measurements with a calibrated antenna.},
  author       = {Vanveerdeghem, Peter and Van Torre, Patrick and Thielens, Arno and Knockaert, Jos and Joseph, Wout and Rogier, Hendrik},
  issn         = {1530-437X},
  journal      = {IEEE SENSORS JOURNAL},
  keywords     = {BODY,PATCH ANTENNA,ENVIRONMENTS,EXPOSURE METERS,ELECTROMAGNETIC-FIELDS,CALIBRATION,SAR,Dosimetry,radio frequency exposure,textile antennas,wearable electronics},
  language     = {eng},
  number       = {8},
  pages        = {4393--4401},
  title        = {Compact personal distributed wearable exposimeter},
  url          = {http://dx.doi.org/10.1109/JSEN.2015.2420583},
  volume       = {15},
  year         = {2015},
}

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