B-field Exposure From Induction Cooking Appliances 7
3 Experimental Setup
3.1 Setup Design
In order to find and evaluate the worst-case B-field exposure that arises during the realistic
use of induction cookers, the experimental setup shown in Figure 2 has been implemented. It
consists of:
• Three induction cooking appliances currently available on the Swiss market (winter 2005/06):
one portable and two built-in devices. All three appliances are mounted on a wooden sup-
port, allowing measurements in close proximity (see 3.2).
– Appliance 1: Electrolux GK58TCi (built-in)
– Appliance 2: Gaggenau CI 261 110 (built-in)
– Appliance 3: Inducs SH/BA 5000 (portable)
• 16 pots and pans of different sizes, shapes, and materials, including a standard set of pots
and a worst-case set of pots (definition in 3.3).
• The Narda exposure level tester ELT-400 (Narda GmbH, Pfullingen, Germany), used in
all measurements of the magnetic flux density (see 3.4).
• The DASY4 dosimetric assessment system from SPEAG (Zurich, Switzerland), used to
map the spatial B-field for each device. The software and hardware of the DASY4 system
has been extended to also allow 3D-scanning with probes from other manufacturers.
3.2 Induction Cookers
3.2.1 Induction Cookers Available on the Swiss Market
Market review A review of induction cooking equipment available on the Swiss market is
presented in Table 1 (as of 1. Dec. 2005). The distinction was made between built-in and
portable appliances. The portable appliances typically provide higher power for the hobs, which
may correspond to a higher B-field exposure, and a larger variety of designs, control options and
accessories. The built-in equipment can be divided into four groups with similar technical data:
Miele/Fors, AEG/Electrolux, Bauknecht/IKEA and Siemens/Gaggenau. Only the layout of the
hobs and control panel is different. It can be assumed that different brands source modules from
the same few OEM (original equipment manufacturers).
