公开(公告)号：US20140260526A1

公开(公告)日：2014-09-18

申请号：US14102082

申请日：2013-12-10

Applicant: Hitachi, Ltd.

Inventor： Yoshitaka TSUTSUI ,  Nobuaki NAKASU ,  Keiji SUZUKI ,  Kengo IWASHIGE ,  Mitsuru ONODA ,  Harumasa TSUCHIYA ,  Yasuaki KAGEYAMA

IPC: G01L5/00

CPC classification number: G01L5/0028 ,  G01L5/0038 ,  G01N3/30

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.

Abstract translation: 一种固定力测量装置，包括：用于向楔形表面施加预定的受控锤击力以产生锤击声的部分，用于控制所产生的锤击声的部分，用于获得多种特征量的部分，所述特征量由于 锤击声能量和由于通过算术运算而收集的锤击声的锤击声的频率产生的特征量，以及通过使用相关关系来获得与多种特征量相对应的固定力的部分 预先获得的楔形固定力，以及多种特征量。