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Patent Searching and Data


Title:
EMI MEASUREMENT APPARATUS
Document Type and Number:
Japanese Patent JPH04116471
Kind Code:
A
Abstract:

PURPOSE: To easily and highly accurately measure an electromagnetic interference (EMI) by using a hydraulic motor as a power source of an EMI measurement apparatus of a clamp running device used for moving a machine to be inspected and/or pickup.

CONSTITUTION: A clamp running device to be used for moving a machine to be inspected and/or pickup employs a hydraulic motor 17 as a motor for moving an absorbing clamp 14 placed on a leg of the running device. Thus no electromagnetic noise entering the clamp 14 as pickup from the motor 17 will occur. In addition since a hydraulic pump unit 21 and a control box 23 may probably generate noise respectively, they are connected with the motor 17 via tubes 22, 24 each approximately 10m long, so that they can be easily placed sufficiently distant from the clamp 14 or placed at positions where the electromagnetic noise may not easily enter the clamp 14. Therefore EMI of the machine to be inspected can be measured easily with sufficient accuracy.


Inventors:
MITA KAZUMICHI
Application Number:
JP23581890A
Publication Date:
April 16, 1992
Filing Date:
September 07, 1990
Export Citation:
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Assignee:
APURASU KK
International Classes:
G01R29/08; (IPC1-7): G01R29/08
Attorney, Agent or Firm:
Tetsuya Ito (1 outside)