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：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.