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Patent Searching and Data


Title:
SHAKING SYSTEM
Document Type and Number:
Japanese Patent JP2008151521
Kind Code:
A
Abstract:

To provide a shaking system capable of compensation for influence of the reaction force of a test sample without requiring addition of an element leading to upsizing of the system and, further, capable of real-time compensation for the reaction force of the test sample in the direction of the rotation in the above compensation case.

In a shaking system comprising a table 2 and a hydraulic shaker wherein a test sample 4 held on the table is vibrated by the hydraulic shaker through the table: a load added to the hydraulic shaker from the table is calculated in a load calculation part 23a; a compensation signal 113a for compensating for the load is generated in a signal calculation part 24a; and the compensation signal is added to a servo signal 105a and it is outputted to a servo valve 14a for controlling the hydraulic shaker.


Inventors:
Dosono, Birei
Application Number:
JP2006000336766
Publication Date:
July 03, 2008
Filing Date:
December 14, 2006
Export Citation:
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Assignee:
HITACHI PLANT TECHNOLOGIES LTD
International Classes:
G01M7/02; G01M7/00