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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-7996

Lauer, O; Riederer, M; Karoui, N; Vahldieck, R; Keller, E; Fröhlich, J (2008). Characterization of the electromagnetic environment in a hospital. In: Proceedings Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zürich Symposium on Electromagnetic Compatibility APEMC, Zurich, Switzerland, 19 May 2008 - 23 May 2008.



The electromagnetic environment in a hospital is
characterized in order to evaluate the conditions for failsafe operation of critical electronic equipment. Field strengths within the University Hospital Z¨urich were measured at more than 60 different locations in the frequency range from 9 kHz up to 10 GHz. To account for variations in both, time and location, ’stationary short term’ and ’stationary long term’ measurements over 24 h were carried out. The measurement uncertainty of the
measurement equipment, calibration and measurement procedure is assessed. Measurement results are evaluated with respect to given immunity levels (EMC) and in-band interferences (EMI). The ISM band features a noise power density of -32 dBm/MHz while for Ultra Wide Band (UWB) there are different sub-bands with a maximum noise power density of less than -81 dBm/MHz. This suggests that communication in the UWB band requires significantly lower power levels than communication in the ISM band for equal dynamic ranges of the radio links.

Item Type:Conference or Workshop Item (Lecture), not refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurosurgery
DDC:610 Medicine & health
Event End Date:23 May 2008
Deposited On:05 Jan 2009 10:42
Last Modified:09 Jul 2012 03:29
Citations:Google Scholar™
Scopus®. Citation Count: 10

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