Title:
材料試験機、及び材料試験機の制御方法
Document Type and Number:
Japanese Patent JP7070702
Kind Code:
B2
Abstract:
Provided is a material testing machine (1) including: a load mechanism (12) that applies a load to a test object; a load measurement device that measures the load applied to the test object; and a control device (30) that performs a feedback control for the load mechanism (12) based on a deviation between a measurement value of the load and a target value of the load, in which a change in a physical quantity generated in the test object due to the load is measured, and the control device (30) includes a hunting detection unit (66) that detects hunting by comparing a frequency spectrum obtained by converting time-series data of the measurement value with a frequency spectrum obtained by converting the time-series data of the target value.
Inventors:
Toru Matsuura
Application Number:
JP2020557549A
Publication Date:
May 18, 2022
Filing Date:
June 10, 2019
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
G01N3/08; G01N3/20; G01N3/32; G05B5/01; G05B13/02
Domestic Patent References:
| JP2008164463A | ||||
| JP7093002A |
Foreign References:
| US5124626 | ||||
| US6597146 |
Attorney, Agent or Firm:
Patent Business Corporation Kushibuchi International Patent Office
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