Abstract
The electrically stimulated acoustic-wave (ESAW) method for observing resident space charge in dielectric insulators has been used to characterize the poling behavior of millimeter-thick samples of polymeric insulation. The principle involves applying a voltage pulse across a material containing space charge and recording the exiting stress-wave signal by means of a piezoelectric transducer. This is a noninvasive technique and may be performed, in situ, during any space-charge-generating experiment. This method is able to detect space charge with a figure of merit equal to the sensitivity times the resolution of 130 pC/${\mathrm{cm}}^{2}$, and, to our knowledge, is the lowest reported for any nondestructive space-charge-profiling technique.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
