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%0 Thesis
%A Jankowiak, Kathrin
%T Experimental und environmental factors influencing human perception of direct current-, alternating current-, and hybrid electric fields
%I Rheinisch-Westfälische Technische Hochschule Aachen
%V Dissertation
%C Aachen
%M RWTH-2022-10872
%P 1 Online-Ressource : Illustrationen, Diagramme
%D 2022
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University 2023
%Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2022, Kumulative Dissertation
%X This dissertation project includes the investigation of human perception of direct current (DC) electric fields (EFs), alternating current (AC) EFs, and the combination of both field types (hybrid EFs). As part of the ongoing global energy transition, new challenges appear, such as higher needs for efficient long-distance energy transmission. Meeting these needs, in Germany, new high-voltage DC (HVDC) overhead power lines are in planning. Additionally, HVDC lines will be mounted on existing HVAC structures, leading to hybrid EFs. Because the distance between planned overhead lines and residential areas is partially reduced, the investigation of the human-technology interaction is of great interest. However, human perception of DC EFs and hybrid EFs have been targeted in only a few studies. Moreover, no national or international agency has proposed limit values for hybrid EFs. According to the current state of research, there are no adverse health effects caused by EF exposure in humans or animals. Nevertheless, humans are reliably able to perceive EFs. Within an experimental pre-study, we found various and individually different cutaneous sensations: Participants frequently reported a pleasurable tingling or slight vibration, whereby DC EFs were primarily perceived in the head area and AC EFs at the extremities. In our highly sophisticated exposure laboratory, we exposed eleven participants to EF strengths with a maximum of 50 kV/m (DC and hybrid) or 30 kV/m (AC). Using an adaptive staircase approach and methods based on the signal detection theory (SDT), we estimated averaged detection thresholds (DC: 23.4 kV/m; AC: 16.9 kV/m; Hybrid: 11.4 kV/m). Relative humidity could be identified as environmental factor influencing the perception of EFs in different ways: DC EF exposure could be better perceived under high relative humidity condition (70
%F PUB:(DE-HGF)11
%9 Dissertation / PhD Thesis
%R 10.18154/RWTH-2022-10872
%U https://publications.rwth-aachen.de/record/856425