Liha töötlemine
ε r = ε ′ − j ⋅ ε ′′ (25.1) In Equation 25.3, D is called the dissipa-
In this equation, tion factor, and Q the quality factor. Tan δ
can be defined as the energy lost per cycle
j = −1 divided by energy stored per cycle (Grimnes
and Grøttem-Martinsen 2008).
the real part of complex permittivity is
called the dielectric constant (ε′) and the
imaginary part is called the loss factor (ε″).
The dielectric constant is related with the
capacitance of the material and its ability
to store energy (polarization). Foods are
nonideal dielectrics and polarization has
associated dissipation phenomena, producing
energy absorptions and the decay of the
dielectric constant. The parameter that
reflects the absorption and dissipation of
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