The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2019
Filed:
Feb. 12, 2013
Toru Fukasawa, Tokyo, JP;
Takashi Itoh, Tokyo, JP;
Hiroaki Miyashita, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A partial discharge sensor evaluation method includes a first frequency characteristic measuring process in which, in a state where a reference antennafor which a frequency characteristic in an effective height is known and a measuring antennaare installed on a flat groundto be separated by a predetermined distance from each other, a transmission characteristic measurermeasures a frequency characteristic of a transmission characteristic between the reference antennaand the measuring antenna, and a second frequency characteristic measuring process in which, in a state where a measured antennais installed inside a cylindrical groundburied in a circular openingformed at a position where the reference antennahas been installed, the transmission characteristic measurermeasures the frequency characteristic of the transmission characteristic between the measured antennaand the measuring antenna