Patent ID: 11968900
Assignee: XEROX CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method for poling piezoelectric material, said method comprising:
mounting a sample of piezoelectric material on a platen;
moving the platen so as to locate the sample in a first position proximate to a corona source;
exposing the sample to a corona generated by the corona source;
moving the platen so as to locate the corona exposed sample in a second position proximate to a probe of an electrostatic voltmeter;
measuring a surface potential of the corona exposed sample with the electrostatic voltmeter;
comparing the measured surface potential to a target value; and
based on said comparing, if the measured surface potential is not the same as the target value, to within a set tolerance, moving the platen so as to return the sample to the first position proximate the corona source and re-exposing the sample to the corona generated by the corona source.