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:
Mar. 03, 2020
Filed:
Dec. 07, 2016
Isuzu Motors Limited, Shinagawa-ku, Tokyo, JP;
Masafumi Noda, Kawasaki, JP;
ISUZU MOTORS LIMITED, Tokyo, JP;
Abstract
A reactance measurement apparatus has a series circuit has a first circuit including a first resistor and a second circuit including a reactance element, a first voltage generation unit for generating a first AC voltage to apply the same to the series circuit, a second voltage generation unit for generating a second AC voltage having a phase difference with respect to the first AC voltage, a multiplication unit for multiplying the second AC voltage and a second circuit voltage to generate a multiplication voltage, a measurement unit for measuring a voltage of a DC component of the multiplication voltage, a phase shift amount calculation unit for calculating a phase shift amount, and a reactance calculation unit for calculating a reactance of the reactance element based on the phase shift amount.