Composite insulating material ageing state detection method

• Main Authors: WANG XILIN, YE WEIAN, WANG HAN, JIA ZHIDONG
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; COLORIMETRY; CONDUCTORS; ELECTRICITY; INSULATORS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TESTING

A composite insulating material ageing state detection method includes the following steps that S1, a selected point on the surface of a to-be-detected composite insulating material is bombarded through a pulse laser beam multiple times to generate plasmas, and the bombarding depth formed in the composite insulating material in each time of bombarding is measured; S2, spectrum information of plasma emission during each time of bombarding is collected, and spectral characteristic indexes of specific composition elements of the composite insulating material during each time of bombarding are extracted through the collected spectrum information, wherein the spectral characteristic indexes at least include the spectral line intensity characteristics of characteristic spectral lines; S3, the change relation according to which the spectral characteristic indexes of the specific composition elements change along with the bombarding depths is determined; S4, the ageing state information of the composite insulating ma