The edge effect on the electrode faces upon testing of orthotropic media

The features of the fields in the peripheral regions of attachable capacitors are studied, in particular, on the faces of the strip electrodes where the field is not plane-parallel. A method for consideration of the contribution of the field on the electrode faces to the capacitance of the attachable capacitors is developed. An algorithm for prevention of the edge effect that influences the test results is considered for materials with uniaxial anisotropy. The effective values of the permittivity tensor components of the dry flax fiber are determined.