公开(公告)号：US09632062B2

公开(公告)日：2017-04-25

申请号：US14483797

申请日：2014-09-11

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshiaki Tanaka ,  Kazunori Miyazawa ,  Ken'ichi Kamada ,  Satoshi Kato ,  Yosuke Ishii ,  Sho Fujita ,  Yukiyo Akisada ,  Nobuo Okabe ,  Hiroaki Tanaka ,  Minako Terao

IPC: G01N29/04 ,  G01B17/02 ,  G01N17/00 ,  G01N29/07 ,  G01N29/11

CPC classification number: G01N29/04 ,  G01B17/02 ,  G01N17/00 ,  G01N29/043 ,  G01N29/07 ,  G01N29/11 ,  G01N2291/015 ,  G01N2291/023 ,  G01N2291/02854 ,  G01N2291/0289 ,  G01N2291/2634

Abstract: An ultrasonic pipe measurement apparatus includes: a plurality of ultrasonic transceivers discretely disposed on a pipe wall of a pipe; and a control unit configured to control the plurality of ultrasonic transceivers and detect a generation point of damage caused in the pipe based on an ultrasonic signal exchanged between the ultrasonic transceivers.

公开(公告)号：US11959851B2

公开(公告)日：2024-04-16

申请号：US17427673

申请日：2019-12-27

Applicant: Yokogawa Electric Corporation

Inventor： Nobuo Okabe ,  Satoshi Yoshitake ,  Kazuma Takenaka ,  Yoshiaki Tanaka ,  Shumpei Ito

IPC: G01N17/04 ,  G01B7/06 ,  G01B17/02

CPC classification number: G01N17/04 ,  G01B7/10 ,  G01B17/02

Abstract: An absolute thickness distribution cannot be accurately calculated with a conventional technique. A sensor device is provided that includes a plurality of magnetic sensors arranged to face an outer circumference surface of a pipeline and ultrasonic sensors arranged to face the outer circumference surface and measure a thickness of the pipeline in a measurement region in which the plurality of magnetic sensors measure a magnetic field, the ultrasonic sensors being less than the plurality of magnetic sensors.

公开(公告)号：US11603738B2

公开(公告)日：2023-03-14

申请号：US17216876

申请日：2021-03-30

Applicant: Yokogawa Electric Corporation

Inventor： Shumpei Ito ,  Yoshiaki Tanaka ,  Tatsuya Hazuku ,  Tomonori Ihara ,  Motoaki Morita

IPC: E21B28/00 ,  E21B37/00 ,  E21B7/24

Abstract: An estimation system includes an acquirer, an inferrer, a corrector, and an estimator. The acquirer acquires a measured value of an outer surface temperature of a pipe through which fluid flows. The inferrer infers an execution time for a removal process for deposits on an inner surface of the pipe. The corrector corrects an estimated value used for estimating a thickness of the deposits, by using the measured value of the outer surface temperature of the pipe, which is acquired within a predetermined time from an inference result of the execution time for the removal process for the deposits. The estimator estimates the thickness of the deposits based on the corrected estimated value and the measured value of the outer surface temperature of the pipe.

公开(公告)号：US12253430B2

公开(公告)日：2025-03-18

申请号：US16972607

申请日：2019-05-16

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Shumpei Ito ,  Yoshiaki Tanaka

IPC: G01M13/003 ,  F16K37/00 ,  G01N29/11

Abstract: The present disclosure provides a valve diagnosis apparatus capable of being combined with an existing valve and of automatically diagnosing corrosion, a valve apparatus using this valve diagnosis apparatus, and a valve diagnosis method. A valve diagnosis apparatus of the present disclosure includes an ultrasonic transmitter that transmits ultrasound towards a valve element that opens and closes a valve to be diagnosed, an ultrasonic receiver that receives the ultrasound transmitted from the ultrasonic transmitter, a controller that drives the ultrasonic transmitter and processes a reception signal received by the ultrasonic receiver, and a memory that stores the reception signal. The controller detects corrosion of the valve element from the difference in intensity of the reception signal in the initial state of the valve and at the time of diagnosis.

公开(公告)号：US11921082B2

公开(公告)日：2024-03-05

申请号：US17279747

申请日：2019-09-04

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Kodai Murayama ,  Yoshiaki Tanaka ,  Kenji Oishi ,  Masahiro Hirase ,  Yuzuho Iga

IPC: G01N27/403 ,  A61B5/1486 ,  G01N27/30 ,  G01N27/36 ,  G01N27/414 ,  G01N27/416

CPC classification number: G01N27/4148 ,  A61B5/1486 ,  G01N27/301 ,  G01N27/36 ,  G01N27/4167

Abstract: A measuring device 1 according to the present disclosure measures a state of a solution L. The measuring device 1 includes a measuring unit 10 that outputs a measurement signal associated with the state of the solution L, a protection unit 20 attached to the measuring unit 10, and a controller 40 that obtains the information on the state of the solution L on the basis of a measurement signal output from the measuring unit 10. The measuring unit 10 has a first part P1 in a usable state that contributes to output of the measurement signal by coming into contact with the solution L, and a second part that is isolated from the solution L by the protection unit 20 and is in a standby state for measurement.

公开(公告)号：US09279708B2

公开(公告)日：2016-03-08

申请号：US14292965

申请日：2014-06-02

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Hiroaki Tanaka ,  Minako Terao ,  Yoshiaki Tanaka

IPC: G01F1/66 ,  G01F25/00

CPC classification number: G01F1/662 ,  G01F1/667 ,  G01F1/668 ,  G01F25/0007

Abstract: An ultrasonic flowmeter includes a plurality of ultrasonic wave elements attached to an outer wall of a pipeline through which a measurement target fluid flows, and configured to transmit and receive an ultrasonic signal, wherein at least one of the ultrasonic wave elements is an ultrasonic wave transmission element and is attached to the outer wall of the pipeline so that an ultrasonic wave transmission surface thereof is in parallel to a pipe axis direction of the pipeline, and another at least one of the ultrasonic wave elements is an ultrasonic wave reception element and is attached to the outer wall of the pipeline so that an ultrasonic wave reception surface thereof is in parallel to the pipe axis direction of the pipeline.

Abstract translation: 一种超声波流量计，包括：多个超声波元件，其安装在管道的外壁上，测量对象流体通过该外壁流动，并被配置为发送和接收超声波信号，其中至少一个超声波元件是超声波传输 并且附接到管道的外壁，使得其超声波传播表面与管道的管轴方向平行，另外至少一个超声波元件是超声波接收元件，并且被附接 到管道的外壁，使得其超声波接收面与管道的管轴方向平行。

公开(公告)号：US09581480B2

公开(公告)日：2017-02-28

申请号：US13906121

申请日：2013-05-30

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshiaki Tanaka ,  Minako Terao ,  Hiroaki Tanaka

IPC: G01F15/14 ,  G01F15/00 ,  G01F1/684

CPC classification number: G01F1/6845 ,  G01F1/6842 ,  G01F1/6847 ,  G01F15/00 ,  G01F15/14

Abstract: A micro flow sensor includes: a flow path through which a fluid to be measured flows; a detection unit having a heater configured to heat the fluid to be measured in the flow path and temperature sensors configured to measure temperature of a fluid to be measured in the flow path; an arithmetic unit configured to measure a flow rate of the fluid to be measured flowing through the flow path based on the temperature of the fluid to be measured, measured by the temperature sensors; and a narrowed portion disposed on an upstream side of the detection unit in the flow path for narrowing the flow path.

Abstract translation: 微流量传感器包括：待测流体流过的流路; 检测单元，其具有加热器，所述加热器构造成加热所述流路中的待测量流体;温度传感器，被配置为测量所述流路中待测量流体的温度; 运算单元，其被配置为基于由所述温度传感器测量的待测量流体的温度来测量流过所述流路的被测量流体的流量; 以及设置在流路中的检测单元的上游侧的变窄部分，用于使流路变窄。