FIELD: electric engineering.
SUBSTANCE: method involves placing a sample on rotating disk surface. Shielded needle-type discharge electrode and measuring electrode are placed over disk surface. Polar polyethylene insulation C-H bonds are polarized in corona discharge. Electric induction voltage is measured on measuring electrode and electret potential drop originating from sample polarization is recorded. Linking degree is calculated from formula K=ΔVe/Ve, where ΔVe is the electret potential drop reduction caused by reduction in polar C-H bonds concentration as a result of cross-linking polyethylene insulation; Ve is the electret potential drop in the case of non-cross-linked polyethylene insulation.
EFFECT: accelerated high accuracy method; avoided toxic material usage.
4 dwg
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