Title:
【発明の名称】電子部品の振動試験方法および装置
Document Type and Number:
Japanese Patent JP2595368
Kind Code:
B2
Abstract:
PURPOSE:To achieve a vibration test where frequency is changed arbitrarily in a wide frequency range by placing it within a DC magnetic field and allowing AC current to flow through it for causing an inner wiring to be vibrated. CONSTITUTION:Output of an AC power supply 13 is amplified and adjusted based on confirmation of an ammeter 15 for enabling an arbitrary AC current to flow through a fuse 12. Then, this fuse 12 is placed within DC magnetic field due to a magnet 17, thus enabling an inner wiring 12a of the fuse 12 to be vibrated by electromagnetic force. By changing magnetic flux density or current of a magnetic field for the inner wiring 12a, an arbitrary acceleration can be applied to. In this case, there is basically no limitation in frequency, thus enabling vibration of a wide range of frequency to be applied to.
Inventors:
Naofumi Kono
Koji Saga
Toshio Sato
Fumio Okamura
Koji Hioki
Toshiaki Fujie
Koji Saga
Toshio Sato
Fumio Okamura
Koji Hioki
Toshiaki Fujie
Application Number:
JP16309990A
Publication Date:
April 02, 1997
Filing Date:
June 21, 1990
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立インフォメーションテクノロジー
株式会社日立インフォメーションテクノロジー
International Classes:
G01R31/30; (IPC1-7): G01R31/30
Domestic Patent References:
| JP5319087A | ||||
| JP61196133A |
Attorney, Agent or Firm:
Yamato Tsutsui