Title :
Cable insulation density profile determined from ultrasonic velocity measurements
Author :
Piché, L. ; Pélissou, S. ; Crine, J.-P.
Author_Institution :
Nat. Res. Council of Canada, Boucherville, Que., Canada
Abstract :
Density results obtained on the same cable sample with a column and from ultrasonic measurements are reported. A calibration curve relating ultrasonic velocity and cable insulation density is given for PE and crosslinked PE (XLPE) cables. The limits and advantages of deducing density profiles of cable insulation using a focused, ultrasound beam rather than the more time-consuming column measurements are discussed.<>
Keywords :
cable insulation; cable testing; density measurement; insulation testing; power cables; ultrasonic materials testing; ultrasonic velocity measurement; XLPE; cable insulation density; calibration curve; column measurements; crosslinked PE; focused US beam; insulation density profile; ultrasonic velocity measurements; Acoustic reflection; Acoustic transducers; Aging; Cable insulation; Density measurement; Performance evaluation; Polymers; Ultrasonic transducers; Ultrasonic variables measurement; Velocity measurement;
Journal_Title :
Electrical Insulation Magazine, IEEE
