公开(公告)号：US20230302542A1

公开(公告)日：2023-09-28

申请号：US17823873

申请日：2022-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuo WATABE ,  Keisuke UENO ,  Hidefumi TAKAMINE ,  Yongfang LI ,  Takashi USUI ,  Junko HIROKAWA ,  Yuki UEDA ,  Tetsuya KUGIMIYA

IPC: B23B7/06 ,  B23B7/12

CPC classification number: B23B7/06 ,  B23B7/12 ,  C09J5/06

Abstract: According to one embodiment, a sensor attachment/detachment device of the embodiment includes a sensor, a bonding member, a support portion, and a release execution portion. The bonding member is bonded to a first surface of the sensor and has a function of decreasing an adhesive force. The support portion can support the sensor by directly contacting a second surface of the sensor or via another functional portion. The release execution portion performs a process of releasing the bonding member from the object by decreasing the adhesive force of the bonding member after the sensor is attached to the object by the bonding member.

公开(公告)号：US20230083554A1

公开(公告)日：2023-03-16

申请号：US17653291

申请日：2022-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi USUI ,  Hidefumi TAKAMINE ,  Yuki UEDA ,  Keisuke UENO ,  Yousuke HISAKUNI ,  Kazuo WATABE

IPC: G01M7/08

Abstract: According to one embodiment, a structure evaluation system includes at least three or more sensors, a position locator, and an evaluator. The three or more sensors are arranged on surfaces different from a surface to which an impact is applied with respect to a structure at different intervals in a first direction of the structure and a second direction orthogonal to the first direction and detects elastic waves generated from the structure. The position locator locates a position of a source in which the elastic waves are generated on the basis of the elastic waves detected by each of the three or more sensors. The evaluator evaluates a deterioration state of the structure on the basis of information based on a position location process of the position locator and information indicating a position where the impact is applied.

公开(公告)号：US20220082528A1

公开(公告)日：2022-03-17

申请号：US17184134

申请日：2021-02-24

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidefumi TAKAMINE ,  Yuki UEDA ,  Keisuke UENO ,  Takashi USUI ,  Kazuo WATABE

IPC: G01N29/07

Abstract: According to one embodiment, a structure evaluation system includes a wave guide, a first sensor, a second sensor, and a calculation part. The wave guide is formed in a rod shape, is inserted into a hole that is formed at a predetermined depth from a surface of a measurement target, and has one end fixed to a deepest portion of the hole. The first sensor is provided at the other end of the wave guide at a position that is substantially the same as the surface. The second sensor is provided on the surface of the measurement target. The calculation part estimates a depth of damage occurring in the measurement target from the surface on the basis of a first detection value of an elastic wave transmitted to the measurement target which is detected by the first sensor through the wave guide and a second detection value obtained by an elastic wave which is detected by the second sensor.

公开(公告)号：US20250012662A1

公开(公告)日：2025-01-09

申请号：US18585261

申请日：2024-02-23

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takashi USUI ,  Hidefumi TAKAMINE ,  Yuki UEDA ,  Kazuo WATABE

IPC: G01M5/00

Abstract: According to one embodiment, a structure evaluation system of an embodiment includes a plurality of sensors, a position locator, a distribution generator, and an evaluator. The plurality of sensors detect elastic waves generated inside a structure. The position locator locates positions of one or more elastic wave generation sources on the basis of a plurality of elastic waves detected by each of the plurality of sensors. The distribution generator generates an elastic wave source density distribution representing a density distribution of the one or more elastic wave generation sources on the basis of a position location result of the one or more elastic wave generation sources obtained by the position locator. The evaluator evaluates damage to the structure on the basis of one or more reference distributions generated on the basis of a simulation including a random number and the elastic wave source density distribution generated by the distribution generator.

公开(公告)号：US20220187253A1

公开(公告)日：2022-06-16

申请号：US17653512

申请日：2022-03-04

Applicant: Kabushiki Kaisha Toshiba ,  Kyoto University

Inventor： Hidefumi TAKAMINE ,  Yuki UEDA ,  Kazuo WATABE ,  Tomoki SHIOTANI

IPC: G01N29/44 ,  G01N29/34 ,  G01N29/04

Abstract: According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, a corrector, and an evaluator. The plurality of sensors detect elastic waves generated from a structure. The position locator locates the position of a generation sources of a plurality of elastic waves on the basis of the plurality of elastic waves detected by the plurality of sensors. The corrector corrects information based on the position locating performed by the position locator using a correction value set in correspondence with an impact. The evaluator evaluates a deterioration state of the structure on the basis of the corrected information.

公开(公告)号：US20210013981A1

公开(公告)日：2021-01-14

申请号：US16810126

申请日：2020-03-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuki UEDA

IPC: H04J3/06 ,  H04L29/08

Abstract: According to one embodiment, a transmission terminal, a time information processing device, and a synchronization method capable of improving synchronization accuracy in a wireless network are provided. According to an embodiment, a sensor system includes a sensor, a transmission terminal, and a time information processing device. The transmission terminal includes an event signal generator, an event time determiner, a communication time determiner, and a communicator. The event signal generator detects the occurrence of an event on the basis of a physical quantity detected by the sensor. The event time determiner determines a detection time of the event. The communication time determiner determines a transmission time at the time of transmission to the time information processing device. The communicator transmits time information to the time information processing device. The time information processing device includes a reception time determiner and a time information processor. The reception time determiner determines a reception time of the time information transmitted from the transmission terminal. The time information processor performs a process based on a plurality of transmission times and a plurality of reception times.

公开(公告)号：US20230324345A1

公开(公告)日：2023-10-12

申请号：US17897451

申请日：2022-08-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidefumi TAKAMINE ,  Junko HIROKAWA ,  Kazuo WATABE ,  Tetsuya KUGIMIYA ,  Keisuke UENO ,  Takashi USUI ,  Yongfang LI ,  Yuki UEDA

IPC: G01N29/04 ,  G01N29/28 ,  G01N29/22

CPC classification number: G01N29/223 ,  G01N29/04 ,  G01N29/28

Abstract: A sensor module according to an embodiment includes a sensor; a sensor holder that holds the sensor and includes a pressing force application portion to apply a pressing force to press the sensor toward a measurement target object side; an adhesion portion that adheres the sensor holder to the measurement target object by an adhesion force; and a change mechanism that changes a relative magnitude relationship between the pressing force and the adhesion force.

公开(公告)号：US20190285590A1

公开(公告)日：2019-09-19

申请号：US16117710

申请日：2018-08-30

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Junko HIROKAWA ,  Ena ISHII ,  Yasutaka ITO ,  Yuki UEDA ,  Takashi USUI ,  Takahiro OMORI ,  Kazuo WATABE

IPC: G01N29/14 ,  G01N29/36

Abstract: According to an embodiment, a detection system includes a wheel, at least one sensor, a generation unit, and a diagnosis unit. The wheel has an outer edge including an inner wall in which an installation surface is provided. The at least one sensor is installed on the installation surface to detect an elastic wave transmitted from at least one of the wheel and a structure making contact with the wheel. The generation unit is configured to generate time information representing time at which the elastic wave is detected, and feature information representing features of the elastic wave. The diagnosis unit is configured to diagnose, on the basis of the time information and the feature information, a position of a damaged portion of at least one of the wheel and the structure, and a degree of damage of the damaged portion.

公开(公告)号：US20240094165A1

公开(公告)日：2024-03-21

申请号：US18174228

申请日：2023-02-24

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuki UEDA ,  Takashi USUI

IPC: G01N29/07 ,  G01N29/12

CPC classification number: G01N29/07 ,  G01N29/12

Abstract: According to one embodiment, a structure evaluation system of an embodiment includes one or more sensors, a signal processing apparatus, and an evaluator. The plurality of sensors detect elastic waves generated from a structure. The signal processing apparatus calculates information on a frequency distribution by amplitude scale based on the plurality of elastic waves detected by each of the one or more sensors, and transmits the calculated information on the frequency distribution by amplitude scale in a wireless manner. The evaluator evaluates a state of deterioration of the structure based on the information on the frequency distribution by amplitude scale which is transmitted from the signal processing apparatus.

公开(公告)号：US20230295474A1

公开(公告)日：2023-09-21

申请号：US17929431

申请日：2022-09-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takashi USUI ,  Tetsuya KUGIMIYA ,  Kazuo WATABE ,  Keisuke UENO ,  Hidefumi TAKAMINE ,  Junko HIROKAWA ,  Yongfang LI ,  Yuki UEDA

IPC: C09J9/02

CPC classification number: C09J9/02 ,  C09J2301/502

Abstract: An adhesion/peeling method according to an embodiment includes adhering a first surface side of an electrically peelable adhesive sheet to a predetermined position of a fixation target object, wherein the electrically peelable adhesive sheet is formed of an electro-peeling adhesive having adhesiveness on the first surface side and a second surface side thereof, and the adhesiveness of the electro-peeling adhesive is lowered due to an input of a voltage; adhering a first electrode of an adherend including the first electrode formed of a conductor to the second surface side of the electrically peelable adhesive sheet; containing a liquid at the predetermined position of the fixation target object to temporarily form a second electrode with conductivity on a surface of the fixation target object; and inputting a predetermined voltage between the first electrode and the second electrode to peel of the electrically peelable adhesive sheet from the fixation target object.