Kabushiki Kaisha Toshiba

Kyoto University

Nec Corporation

The University of Tokyo

Shiseido Company, Limited

Toshiba Infrastructure Systems & Solutions Corporation

Sanyo Electric Co., Ltd.

Toshiba Corporation

Toshiba Carrier Corporation

Grelan Pharmaceutical Co., Ltd.

Kazuo Watabe

Takashi Usui

Akihito Ogawa

Hidefumi Takamine

Hideo Ando

Yutaka Kashihara

Takahiro Omori

Sumitaka Maruyama

Hideaki Okano

Akihiro Kasahara

Chosaku Noda

Kazuto Kuroda

Kazuaki Doi

Osamu Nishimura

Junya Tanaka

Haruna Eto

Takafumi Sonoura

Hideichi Nakamoto

You Yoshioka

Masahiro Saito

Yutaka Yamanaka

Shuichi Ohkubo

Takamitsu Sunaoshi

Toshihiro Sugaya

Isao Shimoyama

Masahiro Tajima

Hiroshi Takahashi

Hiroshi Ohno

Yuji Nagai

Osamu Koyama

Hisashi Yamada

Naomasa Nakamura

Naoki Morishita

Isao Takahashi

Yasuaki Ogawa

Akihiro Koga

Keiichiro Yusu

Yasushi Tomizawa

Kiyoshi Matsumoto

Tomoki Shiotani

Yuki Ueda

Keisuke Ueno

Yongfang Li

Junko Hirokawa

Chikara Tanioka

Tetsuya Kugimiya

Toshiki Takayasu

Nobuaki Kaji

Katsufumi Hashimoto

Atsuro Oonishi

Hiromichi Kobori

Yousuke Hisakuni

Masahiko Tanaka

Shintaro Takehara

Keiichiro Someda

Masaaki Matsumaru

Hiroharu Sato

Takashi Yoshimoto

Thanh-Vinh Nguyen

Minh Dung Nguyen

Toshihiko Kaneshige

Yuji Kubota

Morio Nakatani

Katsuo Iwata

Shinichi Tatsuta

Tatsunori Ide

Masato Fuma

Hiroaki Shimizu

Yasuhito Ueda

Nobuhisa Yoshida

Hideaki Ohsawa

Yasuo Yoshii

Kazuo Kigasawa

Toshihiko Kaminuma

Yoshiyuki Sakamoto

Hayato Toda

Ritsuko Ehama

Yoshinori Mori

Michihiko Inukai

Tomoya Fumikura

Kikuo Wakisaka

Shuichi Hirano

Takanori Usami

Yangfang Li

Takahiro Nishida

Takaaki Baba

Shoji Fukushima

Toshihiro Hayashi

Akira Tanizaki

Nobumasa Naito

A structure evaluation system includes a plurality of sensors and an evaluator. The plurality of sensors detect elastic waves generated in prestressed concrete in which a prestressed concrete steel material is internally provided. The evaluator evaluates a breakage of the prestressed concrete steel material based on elastic waves detected for a second period, which is a period after the elapse of a first period from a point in time when a magnitude of the elastic waves detected by the plurality of sensors is greater than or equal to a threshold value.

Structure evaluation system, structure evaluation apparatus, and structure evaluation method

According to one embodiment, a corrosion determination system according to an embodiment includes one or more sensors, an index data acquirer, and a corrosion determiner. Elastic waves generated from a structure including at least a member that generates elastic waves due to corrosion are detected. The index data acquirer acquires index data that is an index of an amount of water on the surface of the structure. The corrosion determiner determines whether there is corrosion in the structure based on elastic waves generated due to corrosion identified based on the index data among a plurality of elastic waves detected by the one or more sensors.

Corrosion determination system, corrosion determination apparatus and corrosion determination method

According to one embodiment, a structure evaluation system of the embodiments includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates elastic wave sources on the basis of a plurality of elastic waves detected by each of the plurality of sensors. The evaluator evaluates a deterioration state of a structure in accordance with a presence or absence of a sensor and an elastic wave source distribution which shows a position of the elastic wave sources obtained on the basis of a result of locating of the elastic wave sources.

Structure soundness evaluation using elastic waves on divided areas

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.

Sensor module, sensor module installation device, and mounting method of sensor module

According to one embodiment, a vehicle information estimation system according to an embodiment includes at least one sensor and a vehicle count estimator. The at least one sensor detects elastic waves generated from a structure. The vehicle count estimator estimates the number of vehicles that have passed through on the structure using the elastic waves detected by the at least one sensor.

Vehicle information estimation system, vehicle information estimation apparatus, vehicle information estimation method, and non-transitory computer readable recording medium

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.

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.

Adhesion/peeling method, and adhesion/peeling device

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.

According to one embodiment, a structure evaluation system includes an impact imparting unit, a plurality of sensors, a position locator, and an evaluator. The impact imparting unit applies impacts to a second region different from a first region of a structure to which traveling sections of a vehicle, which travels on the structure, apply impacts. The plurality of sensors detect elastic waves generated in the structure. The position locator locates a position of a source of the elastic waves on the basis of the elastic waves detected by each of the plurality of sensors. The evaluator evaluates a deterioration state of the structure on the basis of a position location result of the position locator.

Structure evaluation system and structure evaluation method

According to one embodiment, an inspection system of an embodiment is an inspection system for inspecting a bogie including a plurality of side beams extending in a front-rear direction and disposed apart from each other in a left-right direction and a cross beam connecting the plurality of side beams. The inspection system includes one or more sensors and a position locator. The one or more sensors are installed on at least one of the plurality of side beams and the cross beam and detect elastic waves. The position locator identifies a beam in which the elastic waves have been generated or locates a position of an elastic wave source on the basis of the elastic waves detected by the one or more sensors.

Inspection system, inspection apparatus, and inspection method

A measuring method in an embodiment includes detecting elastic waves generated in a structural object formed of a solid material in a non-contact manner and estimating a position of an occurrence source of the elastic waves on the basis of information regarding an intensity of a signal of the detected elastic waves.

Measuring method and measuring device

A state evaluation system includes a sensor, a filter, a signal processor, and an evaluator. The sensor detects elastic waves which are generated from industrial equipment in operation. The filter can pass elastic waves having frequency characteristics based on abrasion which is generated in the industrial equipment. The signal processor extracts a plurality of feature values using the elastic waves passing through the filter. The evaluator evaluates an abnormality of the industrial equipment on the basis of a combination of the extracted plurality of feature values.

State evaluation system, state evaluation apparatus, and state evaluation method

According to one embodiment, a damaged region determination system of the embodiment includes a plurality of sensors, a position locator, and a determiner. The plurality of sensors detects elastic waves generated in a target object related to a railway which is a determination target of a damaged region. The position locator locates positions of sources of a plurality of elastic waves based on the plurality of elastic waves detected by each of the plurality of sensors. The determiner determines the damaged region in the target object based on the positions of the sources of the plurality of elastic waves.

Damaged region determination system, determination apparatus and damaged region determination method

A non-contact non-destructive inspection system according to an embodiment includes a sensor, a velocity detection unit, and a damage detection unit. The sensor detects a second elastic wave emitted to a medium surrounding an inspection object due to a first elastic wave propagating through the inspection object. The velocity detection unit detects a velocity of the first elastic wave based on a wavefront angle of the second elastic wave and a velocity of the second elastic wave. The damage detection unit detects damage to the inspection object based on the velocity of the first elastic wave.

Non-contact non-destructive inspection system, signal processing device, and non-contact non-destructive inspection method

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.

Structure evaluation method and structure evaluation system

Growing community of inventors

Yokohama, Japan

Kazuo Watabe