TENSILE TESTING MACHINE AND METHOD FOR CONTROLLING TENSILE TESTING MACHINE

    公开(公告)号:US20220291102A1

    公开(公告)日:2022-09-15

    申请号:US17633959

    申请日:2020-01-09

    Inventor: Tohru MATSUURA

    Abstract: A test result of a tensile test and a measurement result of a natural frequency are easily associated with each other. A high-speed tensile testing machine 1 is a tensile testing machine that executes a tensile test by applying a test force F to a test target TP. The machine includes: a determination unit 513 that determines a timing at which a striking force FD is applied to a testing machine body 2; a striking structure 60 that applies the striking force FD to the testing machine body 2 at the timing determined by the determination unit 513; a first detection unit 514 that detects a vibration of the testing machine body 2 generated by the striking force FD; a calculation unit 515 that calculates a natural frequency FA of the high-speed tensile testing machine 1 on the basis of a detection result of the first detection unit 514; an execution instruction unit 516 that executes the tensile test; and a recording unit 517 that writes, in a result storage unit 518, information indicating a test result of the tensile test in association with information indicating the natural frequency FA. The timing is included in either before or after the tensile testing machine 1 executes the tensile test.

    MATERIAL TESTING MACHINE AND CONTROL DEVICE OF MATERIAL TESTING MACHINE

    公开(公告)号:US20220146386A1

    公开(公告)日:2022-05-12

    申请号:US17511538

    申请日:2021-10-26

    Inventor: Tohru MATSUURA

    Abstract: A tensile testing machine includes: a testing machine body that executes a tensile test; an instruction reception unit that receives an operation instruction for the testing machine body on the basis of an operation from a user; and an instruction storage unit that stores contents and an order of instruction information indicating the operation instruction, which is received by the instruction reception unit, for the testing machine body.

    NOISE REMOVAL METHOD OF MATERIAL TEST AND MATERIAL TESTING MACHINE

    公开(公告)号:US20190086279A1

    公开(公告)日:2019-03-21

    申请号:US16009669

    申请日:2018-06-15

    Inventor: Tohru MATSUURA

    Abstract: A breakage point is detected as a change point from raw data and the data is divided before and after the breakage point to obtain divided data D1 and D2. When the low-pass filtering is performed on each of the divided data D1 and D2 (step S13) and the filtering for all divided data ends, time-series data whose natural frequency is removed is reconstructed before and after the breakage point. When the reconstruction data are connected at the breakage point, it is possible to restore the time-series data of the test force to the time-series data whose natural vibration of the test machine body is removed while taking advantage of a change in test force at the breakage point.

    MATERIAL TESTING MACHINE
    4.
    发明公开

    公开(公告)号:US20230146614A1

    公开(公告)日:2023-05-11

    申请号:US17889387

    申请日:2022-08-16

    Inventor: Tohru MATSUURA

    Abstract: Provided is a tensile testing machine that includes a testing machine main body having a hydraulic actuator, the tensile testing machine including an estimation unit that estimates a response characteristic of the tensile testing machine, in which the estimation unit obtains the response characteristic of the testing machine main body in a state in which a first set value used for a tensile test performed by the tensile testing machine is set as a control parameter specifying operation of the hydraulic actuator, and estimates, based on the obtained response characteristic of the testing machine main body, the response characteristic of the tensile testing machine in a state in which a second set value different from the first set value is set as the control parameter.

    MONITORING DEVICE AND MONITORING SYSTEM
    7.
    发明公开

    公开(公告)号:US20240037725A1

    公开(公告)日:2024-02-01

    申请号:US18357150

    申请日:2023-07-23

    Inventor: Tohru MATSUURA

    CPC classification number: G06T7/0004 G06T7/70 H04N7/183

    Abstract: A monitoring device is a monitoring device of a material testing machine including a display having a marker on a display panel. The monitoring device includes: an acquisition unit that acquires a photographed image of a camera that photographs the display panel; a first generation unit that generates a first processed image obtained by gray-scaling the photographed image; a second generation unit that generates a second processed image obtained by performing blur processing on the first processed image; a third generation unit that generates a third processed image obtained by binarizing the first processed image based on the second processed image; and a first detection unit that detects the marker from the third processed image.

    MATERIAL TESTING MACHINE
    8.
    发明申请

    公开(公告)号:US20210096048A1

    公开(公告)日:2021-04-01

    申请号:US16978711

    申请日:2018-10-29

    Inventor: Tohru MATSUURA

    Abstract: A material testing machine is provided. The material testing machine includes a force detector that detects the testing force that acts on the target to be tested; a displacement detector that detects displacement generated in the target to be tested; and a controller that controls the load mechanism. The controller includes: a differential displacement calculator that obtains a differential displacement value from a value of the displacement detected by the displacement detector and a target displacement value that has been set in advance as a test condition; and a display controller that displays, on a display device, a differential displacement graph indicating, in a form of a graph, time-series data of the differential displacement value calculated by the differential displacement calculator.

    TENSILE TESTING MACHINE AND CONTROL METHOD OF TENSILE TESTING MACHINE

    公开(公告)号:US20200271558A1

    公开(公告)日:2020-08-27

    申请号:US16800150

    申请日:2020-02-25

    Inventor: Tohru MATSUURA

    Abstract: A high-speed tensile testing machine conducts a tensile test on a test piece by applying a test force to the test piece. The high-speed tensile testing machine includes a detection unit configured to detect a test period indicating a time from when the test piece starts to deform under action of the test force to when the test piece breaks, and a determination unit configured to determine validity of a test result of the tensile test, on the basis of the test period and natural vibration of the high-speed tensile testing machine. Specifically, in the case where the test period is a predetermined multiple or more of a specific cycle indicating a cycle of the natural vibration of the high-speed tensile testing machine, the determination unit determines that the test result of the tensile test is valid.

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