公开(公告)号：US20240219352A1

公开(公告)日：2024-07-04

申请号：US18202385

申请日：2023-05-26

Applicant: China Special Equipment Inspection and Research Institute

Inventor： Gongtian Shen ,  Yongna Shen ,  Junjiao Zhang ,  Pengcheng Gan ,  Bin Hu ,  Baoxuan Wang

IPC: G01N29/22 ,  G01N29/265

CPC classification number: G01N29/225 ,  G01N29/265 ,  G01N2291/015 ,  G01N2291/023 ,  G01N2291/0289 ,  G01N2291/103

Abstract: An acoustic emission internal testing method and device for detecting corrosion of a large liquid-carrying storage tank bottom plate. An acoustic emission sensor is configured to collect an acoustic emission signal generated by an underwater acoustic transducer, and to calculate an attenuation coefficient of the acoustic emission signal when propagated by the underwater acoustic transducer through a medium, thereby determining a step distance of the storage tank robot. After the storage tank robot travels every step distance on a storage tank bottom plate, the acoustic emission sensor collects an acoustic emission signal generated by the storage tank bottom plate. Finally, the position where the storage tank bottom plate is corroded and the corrosion degree are determined according to intensity characteristic parameters and activity characteristic parameters of the acoustic emission signal collected after the storage tank robot travels every step distance.

公开(公告)号：US20240036004A1

公开(公告)日：2024-02-01

申请号：US18024934

申请日：2021-09-14

Applicant: SUPERSONIC IMAGINE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS ,  ECOLE SUPÉRIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS

Inventor： William LAMBERT ,  Alexandre AUBRY ,  Mathias FINK ,  Thomas FRAPPART

IPC: G01N29/032 ,  G01N29/46

CPC classification number: G01N29/032 ,  G01N29/46 ,  G01N2291/015

Abstract: Method for ultrasonic characterization of a medium, comprising a step of generating a series of incident ultrasonic waves, a step of generating an experimental reflection matrix Rui(t) defined between the emission basis (i) as input and a reception basis (u) as output, a step of determining a focused reflection matrix RFoc(rin, rout, δt) of the medium between an input virtual transducer (TVin) calculated based on a focusing as input to the experimental reflection matrix and an output virtual transducer (TVout) calculated based on a focusing as output from the experimental reflection matrix, the responses of the output virtual transducer (TVout) being obtained at a time instant that is shifted by an additional delay δt relative to a time instant of the responses of the input virtual transducer (TVin).

公开(公告)号：US11860274B2

公开(公告)日：2024-01-02

申请号：US17569175

申请日：2022-01-05

Applicant: AISIN CORPORATION

Inventor： Ippei Sugae ,  Shingo Fujimoto ,  Kosuke Wakita

IPC: G01S15/93 ,  G01S15/931 ,  G01K1/14 ,  G01N29/032

CPC classification number: G01S15/931 ,  G01K1/14 ,  G01N29/032 ,  G01N2291/015 ,  G01N2291/021

Abstract: An object detection device includes: a transmitter transmitting a transmission wave to an outside including a road surface; a receiver receiving a reflected wave of the transmission wave being reflected by an object as a reception wave; a CFAR processor acquiring a CFAR signal at a predetermined detection timing by CFAR processing based on a value of a first processing target signal based on a reception wave received at the detection timing and an average value of values of second processing target signals based on the reception waves received in predetermined sections before and after the detection timing; and an estimator estimating an absorption and attenuation value corresponding to the average value based on a road surface reflection estimation expression that defines a relation between the average value and the absorption and attenuation value in advance.

公开(公告)号：US11860128B2

公开(公告)日：2024-01-02

申请号：US17093666

申请日：2020-11-10

Applicant: ABB Schweiz AG

Inventor： Frank Kassubek ,  Miklos Lenner ,  Stefano Marano ,  Gerrit Held

IPC: G01N29/024 ,  G01N29/032 ,  G01N29/44 ,  G01N29/06 ,  G01N29/34

CPC classification number: G01N29/024 ,  G01N29/032 ,  G01N29/06 ,  G01N29/341 ,  G01N29/44 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/021 ,  G01N2291/022 ,  G01N2291/025 ,  G01N2291/02818 ,  G01N2291/02881

Abstract: A measurement system for measuring an inhomogeneity of a medium in a vessel includes: a first ultrasound emitter for sending a first ultrasound signal along a first path; a second ultrasound emitter for sending a second ultrasound signal along a second path different from the first path; a first ultrasound receiver for receiving the first ultrasound signal and measuring a first measurement parameter p1 of the received first ultrasound signal; a second ultrasound receiver for receiving the second ultrasound signal and measuring a second measurement parameter p2 of the received second ultrasound signal; and a control unit: receives the first measurement parameter p1 from the first ultrasound receiver, receives the second measurement parameter p2 from the second ultrasound receiver, and determines a ratio p1/p2 of the first measurement parameter p1 to the second measurement parameter p2.

公开(公告)号：US11768180B1

公开(公告)日：2023-09-26

申请号：US18176439

申请日：2023-02-28

Applicant: Nanjing University of Aeronautics and Astronautics

Inventor： Zhenghua Qian ,  Zhi Qian ,  Peng Li ,  Xianwei Wu ,  Chen Yang ,  Yinghong Zhang

IPC: G01N29/06 ,  G06T7/00 ,  G01N29/04 ,  G06T7/40

CPC classification number: G01N29/069 ,  G01N29/041 ,  G06T7/0004 ,  G01N2291/015 ,  G01N2291/0234 ,  G01N2291/106 ,  G06T7/40 ,  G06T2207/30108

Abstract: The present disclosure relates to a method for ultrasonic guided wave quantitative imaging in a form of variable array and belongs to the technical field of ultrasonic non-destructive testing. The method includes: converting a non-linear lippmann-Schwinger equation into a form of linear summation by a method of moments; and selecting acquisition arrays with different numbers of probes to measure a scattered field signal, and modifying Green's functions by variable born approximation for continuous iterations to approximate a true solution, so as to obtain a final objective function Ok to be solved. According to the present disclosure, by adjusting the arrays, the number of probes and appropriate solution algorithm can be selected based on the testing accuracy; and the method can achieve quantitative evaluation of non-destructive testing, and can be widely used in practical guided wave testing applications of industrial non-destructive testing.

公开(公告)号：US20230273161A1

公开(公告)日：2023-08-31

申请号：US18014652

申请日：2021-06-28

Applicant: SOCOMATE INTERNATIONAL

Inventor： Philippe COPERET ,  Liévin CAMUS ,  Jean-Marc CARPEZA

IPC: G01N29/26 ,  G01N29/11 ,  G01N29/04 ,  G01N29/06

CPC classification number: G01N29/262 ,  G01N29/11 ,  G01N29/043 ,  G01N29/069 ,  G01N2291/106 ,  G01N2291/011 ,  G01N2291/015

Abstract: Disclosed is a method including the steps of defining a transmission sequence, in which a plurality of transmit transducers is uniformly and randomly selected among the transducers of a probe on the active surface of the probe and a time offset is uniformly and randomly defined for each transmit transducer over a predetermined transmission duration. Subsequently, the transmission sequence is transmitted in the medium by the plurality of transmit transducers, the reception signals are received and recorded and they are processed with a focal law suitable for the transmit transducers and the time offsets used in order to thus derive a level of detection.

公开(公告)号：US20180275108A1

公开(公告)日：2018-09-27

申请号：US15468005

申请日：2017-03-23

Applicant: Palo Alto Research Center Incorporated

Inventor： Eric D. Cocker ,  Scott A. Elrod ,  Uriel A. Rosa ,  Jessica L. B. Rivest ,  George W. Daniel ,  David E. Schwartz

IPC: G01N33/00 ,  G01N29/04

CPC classification number: G01N33/0098 ,  G01N29/11 ,  G01N29/343 ,  G01N29/348 ,  G01N29/4472 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/02466 ,  G01N2291/044 ,  G01N2291/101

Abstract: Embodiments of the present invention provide a system and method for accurate, field-ready, non-destructive, and three-dimensional plant root characterization using acoustic signals. The system is portable, fast, precise, and can be used in field conditions, including moist soil, to visualize root structure or mass distribution, without damaging growing crops. The system may also be applied to characterize other underground objects, such as pipes, building foundations, archaeological artifacts, or mineral ores. During operation, the system generates a source acoustic signal. The system sends the source acoustic signal to an actuator acoustically coupled directly to a plant. The system obtains a response acoustic signal from an underground transducer monitoring a root of the plant. The system analyzes the response acoustic signal according to a model and based on the source acoustic signal. The system then determines, based on the analyzed response acoustic signal, a physical configuration of the plant root.

公开(公告)号：US09981819B2

公开(公告)日：2018-05-29

申请号：US15228110

申请日：2016-08-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Makoto Arima ,  Taishi Tomii

IPC: B65H3/06 ,  B65H7/12 ,  B65H5/06 ,  G01N29/07 ,  G01N29/11 ,  G01N29/34 ,  G01N29/44

CPC classification number: B65H7/125 ,  B65H3/06 ,  B65H5/062 ,  B65H2553/30 ,  B65H2557/61 ,  B65H2557/63 ,  B65H2801/06 ,  B65H2801/39 ,  G01N29/07 ,  G01N29/11 ,  G01N29/343 ,  G01N29/4427 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/0237 ,  G01N2291/048 ,  G01N2291/102

Abstract: A transmitter transmits ultrasound to the conveyance path. A receiver receives the ultrasound. A double-feed detector detects whether or not double-feed of a plurality of sheets has occurred. A controller causes the transmitter to transmit ultrasound at a first burst interval when determining the threshold value, and causes the transmitter to transmit ultrasound at a second burst interval, which is shorter than the first burst interval, when detecting the double-feed of sheets. A double-feed detector determines a threshold value that enables distinction between double-feed and single-feed.

公开(公告)号：US20180095059A1

公开(公告)日：2018-04-05

申请号：US15286318

申请日：2016-10-05

Applicant: Ford Global Technologies, LLC

Inventor： Michael McQuillen ,  Daniel A. Makled ,  Gopichandra Surnilla ,  Richard E. Soltis

IPC: G01N29/032 ,  G01C5/06 ,  G01M15/10

CPC classification number: G01N29/032 ,  G01M15/104 ,  G01N29/024 ,  G01N29/343 ,  G01N29/348 ,  G01N2291/015 ,  G01N2291/02845 ,  G01S7/52004 ,  G01S7/52006 ,  G01S7/524 ,  G01S7/526 ,  G01S15/025 ,  G01S15/87 ,  G01S15/885 ,  G01S15/931

Abstract: Methods and systems are provided for conducting measurements of relative humidity via the use of either an ultrasonic sensor positioned on the vehicle, or via another sensor. In one example, responsive to a request for a relative humidity measurement and an indication of fueled engine operation, the ultrasonic sensor may be utilized, whereas responsive to an indication of non-fueled engine operation, another sensor may be utilized. In this way, robust measurement of relative humidity with desired accuracy may be actively determined, rather than opportunistically, and such measurements of relative humidity may be utilized to adjust vehicle operating parameters, which may improve overall vehicle operation.

公开(公告)号：US20180061207A1

公开(公告)日：2018-03-01

申请号：US15254449

申请日：2016-09-01

Applicant: Locus Solutions, LLC

Inventor： Blair Nygren ,  Rodney Parsons

IPC: G08B21/18 ,  G01N19/08 ,  G01P15/18 ,  H04Q9/00 ,  G06Q10/08

CPC classification number: G08B21/182 ,  G01N19/08 ,  G01N29/00 ,  G01N29/14 ,  G01N29/46 ,  G01N29/48 ,  G01N2291/015 ,  G01N2291/0258 ,  G01P15/18 ,  G06Q10/0832 ,  H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/823

Abstract: A method for estimating a level of damage to perishable cargo during transportation of the cargo using data collected by a portable monitoring device. The method includes measuring vibrational data associated with the cargo. The vibrational data is monitored by a vibration sensor of the portable monitoring device. The method further includes incrementing a counter in the portable monitoring device in response to an amplitude of the measured vibrational data exceeding a predetermined threshold. The method also includes determining if the counter value exceeds a predetermined value, and generating an alert indicating damage to the cargo in response to determining the counter value has exceeded the predetermined value.