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. 16, 2016
Filed:
Dec. 10, 2013
Mitsubishi Hitachi Power Systems, Ltd., Nishi-ku, JP;
Yoshitaka Tsutsui, Tokyo, JP;
Nobuaki Nakasu, Tokyo, JP;
Keiji Suzuki, Tokyo, JP;
Kengo Iwashige, Tokyo, JP;
Mitsuru Onoda, Tokyo, JP;
Harumasa Tsuchiya, Tokyo, JP;
Yasuaki Kageyama, Tokyo, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Abstract
A fixing force measuring apparatus including a section for applying a predetermined controlled hammering force to a wedge surface to generate a hammering sound, a section for controlling the hammering sound generated, a section for obtaining plural kinds of feature quantities such as a feature quantity due to a hammering sound energy, and a feature quantity due to a frequency of the hammering sound from the hammering sound collected by an arithmetic operation, and a section for obtaining a fixing force corresponding to the plural kinds of feature quantities by using a correlative relationship between the wedge fixing force previously obtained, and the plural kinds of feature quantities.