Frequency dependence of the Kerr constant in nynas nytro 3000 oil determined by the polarimetric method
A frequency dependence of the Kerr constant K in transformer oil
Nynas Nytro 3000 within a frequency range 117-5017 Hz is determined.
An averaged value (2.30 ± 0.03)·10ˉ¹⁵ m/V² for K is obtained. The
constant is found to be weakly frequency dependent and approaches its
maximum 2.37·10ˉ¹⁵ m/V² at about 3000 Hz. The Kerr constant is of
comparable value to that observed in other mineral oils employed
previously in measurements of the quadratic electro-optic effect and
the electrostriction in crystals.