ポンプ軸受の不具合の大きさと電磁診断技術の信号との相関関係
英字タイトル:
Electromagnetic Nondestructive Detection for Wounded Bearings andCorrelation of Size of Defect and Signal
著者:
萱田 良 Ryo KAYATA 三好 剛正 Takemasa MIYOSHI 藤原 英起 Hideki FUJIWARA
発刊日:
公開日:
Ball BearingsEddy CurrentsElectromagnetic Nondestructive Detection Method
Electromagnetic Nondestructive Detection for Wounded Bearings andCorrelation of Size of Defect and Signal
著者:
萱田 良 Ryo KAYATA 三好 剛正 Takemasa MIYOSHI 藤原 英起 Hideki FUJIWARA
発刊日:
公開日:
カテゴリ: 第7回
キーワードタグ:Ball BearingsEddy CurrentsElectromagnetic Nondestructive Detection Method
概要
A new electromagnetic method for the nondestructive evaluation of electric pumps with ball bearings is proposed. A permanent m agnet generates a static magnetic field and a coil of several hundred turns wrapped around it is used to pick up eddy currents induced inside rotating ball bearings and impellers. First, a method that make use of the autocorrelation is applied to the si gnals of the ball bearings. A relation between the processed signals and the size of the defects in the bearings is obtained.
