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:
Apr. 18, 2023
Filed:
Mar. 25, 2019
Japan Aerospace Exploration Agency, Tokyo, JP;
Toshio Nishizawa, Tokyo, JP;
Junichi Kazawa, Tokyo, JP;
Hiroshi Gotoda, Tokyo, JP;
Hiroaki Kobayashi, Tokyo, JP;
Yuto Hayashi, Tokyo, JP;
Takayoshi Hachijo, Tokyo, JP;
JAPAN AEROSPACE EXPLORATION AGENCY, Tokyo, JP;
Abstract
[Object] To observe the sign or occurrence of an unstable operation of a turbo-machine. [Solving Means] An observation apparatusincludes: a detection unitincluding one or two or more sensorsthat are disposed in a turbo-machine, are highly time responsive, and observe unsteady fluctuations of the turbo-machine; a computation unitthat output signals from the one or two or more sensorsevery moment, stores time series data for a predetermined period, and calculates in real time a parameter for detecting an unstable operation of the turbo-machine; and a determination unitthat compares the parameter for detecting the unstable operation with a predetermined threshold and outputs in real time a determination result of a sign or occurrence of the unstable operation.