公开(公告)号：US12105056B2

公开(公告)日：2024-10-01

申请号：US18564974

申请日：2022-04-03

Applicant: RESEARCH INSTITUTE OF HIGHWAY MINISTRY OF TRANSPORT

Inventor： Genqiang Jing ,  Yingchao Luo ,  Xiaobing Li ,  Hongbo Guo ,  Qihao Yin

IPC: G01N29/30 ,  G01N29/24 ,  G01N33/38

CPC classification number: G01N29/30 ,  G01N29/2418 ,  G01N33/383

Abstract: The disclosed are a deflection calibration apparatus and method for a laser type high-speed deflection tester. The apparatus comprises rigid supports, rotating discs, driving systems and a deflection calibration unit; the rotating discs are mounted on the rigid supports and driven by the driving systems to rotate, and upper surfaces of the rotating discs are processed into inclined planes having a slope in the circumferential direction; the deflection calibration unit is used for calibrating a laser type high-speed deflection tester according to measured and theoretical deflection values; laser emitted by a Laser-Doppler vibrometer is incident on the upper surfaces of the rotating discs to obtain the measured deflection value; the deflection calibration unit calculates the theoretical deflection value according to the inclination angle and the rotational angular velocity of each rotating disc and the distance between a laser incident point and the gyration center of each rotating disc.

公开(公告)号：US20240310258A1

公开(公告)日：2024-09-19

申请号：US18668677

申请日：2024-05-20

Applicant: Lafayette College

Inventor： David M. Mante ,  Zachary W. Coleman ,  Aaron Buck

IPC: G01N3/08 ,  G01M5/00 ,  G01N3/06 ,  G01N33/38

CPC classification number: G01N3/08 ,  G01N3/066 ,  G01N3/068 ,  G01N33/383 ,  G01M5/0041 ,  G01M5/0066 ,  G01M5/0091 ,  G01N2203/0019 ,  G01N2203/0076 ,  G01N2203/0256 ,  G01N2203/0617 ,  G01N2203/0641

Abstract: A sensor device for detecting static modulus of elasticity in situ comprising: top and bottom frame end plates, the top and bottom frame end plates connected by frame side bars; a dry cavity connected to the top frame end plate and comprising a piston, precompression mechanism, and piston transfer plate; a displacement measurement gauge extending from the dry cavity along a longitudinal axis of the sensor device having a first end in contact with the piston transfer plate and a second end in contact with a bottom inner face of the bottom frame end plate; and a top inner face connected to the piston transfer plate wherein a portion of elastomeric material is positioned on the bottom and top inner faces, the elastomeric material positioned to prevent contact with either bottom or top inner faces except for a portion along the longitudinal axis of the displacement measurement gauge.

公开(公告)号：US20240288348A1

公开(公告)日：2024-08-29

申请号：US18572483

申请日：2022-10-26

Applicant: China National Petroleum Corporation ,  CNPC Engineering Technology R&D Company Limited

Inventor： Jiyun SHEN ,  Hongfei JI ,  Xueli GUO ,  Jianzhou JIN ,  Yongjin YU ,  Congfeng QU ,  Fengzhong QI ,  Zhao HUANG ,  Xiujian XIA ,  Huiting LIU ,  Yongqin CHENG ,  Pengyang JIA ,  Zhengyang ZHAO

IPC: G01N3/06 ,  G01N3/08 ,  G01N33/38

CPC classification number: G01N3/068 ,  G01N3/08 ,  G01N33/383 ,  G01N2203/0019 ,  G01N2203/0075 ,  G01N2203/0098 ,  G01N2203/0218 ,  G01N2203/0647 ,  G01N2203/0682

Abstract: A set cement mechanical property parameter measurement method and apparatus based on image recognition technology. The method includes: acquiring a first image of a set cement specimen; extracting at least one feature point in the first image; acquiring a second image of the set cement specimen, the second image being an image of the set cement specimen subjected to a compressive load during a compressive test; determining a deformation gradient of the feature point by positions of the same feature point in the first image and the second image; determining a strain tensor by the deformation gradient; and determining a Young's modulus parameter and a Poisson's ratio parameter by the strain tensor. The method can reduce the measurement period of the Young's modulus and Poisson's ratio of the set cement specimens, simplify the corresponding operation process, and reduce the corresponding measurement error.

公开(公告)号：US20240183810A1

公开(公告)日：2024-06-06

申请号：US18438983

申请日：2024-02-12

Applicant: GIATEC SCIENTIFIC INC.

Inventor： POURIA GHODS ,  ROUHOLLAH ALIZADEH ,  MUSTAFA SALEHI

IPC: G01N27/04 ,  G01L1/10 ,  G01L1/20 ,  G01L1/22 ,  G01N17/00 ,  G01N17/02 ,  G01N17/04 ,  G01N27/02 ,  G01N33/38 ,  G01R27/00

CPC classification number: G01N27/04 ,  G01N17/02 ,  G01N17/04 ,  G01N27/02 ,  G01N27/026 ,  G01N33/383 ,  G01L1/10 ,  G01L1/20 ,  G01L1/22 ,  G01N17/00 ,  G01N17/006 ,  G01R27/00

Abstract: Hundreds of thousands of concrete bridges and hundreds of billions of tons of concrete require characterization with time for corrosion. Accordingly, protocols for rapid testing and improved field characterization systems that automatically triangulate electrical resistivity and half-cell corrosion potential measurements would be beneficial allowing discrete/periodic mapping of a structure to be performed as well as addressing testing for asphalt covered concrete. Further, it is the low frequency impedance of rebar in concrete that correlates to corrosion state but these are normally time consuming vulnerable to noise. Hence, it would be beneficial to provide a means of making low frequency electrical resistivity measurements rapidly. Further, prior art techniques for electrical rebar measurements require electrical connection be made to the rebar which increases measurement complexity/disruption/repair/cost even when no corrosion is identified. Beneficially a method of determining the state of a rebar without electrical contact is taught.

公开(公告)号：US11982666B2

公开(公告)日：2024-05-14

申请号：US17722716

申请日：2022-04-18

Applicant: Lari Maasalo

Inventor： Lari Maasalo

IPC: G01N33/00 ,  G01N27/04 ,  G01N33/38 ,  G06F18/21

CPC classification number: G01N33/383 ,  G01N27/048 ,  G06F18/217

Abstract: A system and method for the real-time monitoring and updating of a prediction of concrete drying is disclosed. The system includes one or more sensors positioned inside a concrete slab and one or more sensors positioned outside the concrete slab. Each sensor positioned inside and outside the concrete slab to transmit data to a cloud-based web portal configured to transmit a prediction to a computing device.

公开(公告)号：US20240125755A1

公开(公告)日：2024-04-18

申请号：US18046079

申请日：2022-10-12

Applicant: ARAMCO SERVICES COMPANY

Inventor： Arpita P. Bathija

IPC: G01N33/24 ,  G01N23/046 ,  G01N33/38 ,  G06F30/13

CPC classification number: G01N33/24 ,  G01N23/046 ,  G01N33/383 ,  G06F30/13 ,  G01N2223/616

Abstract: A method to perform a field operation with digital cement modeling is disclosed. The method includes acquiring computed tomography (CT) scan data of a metal-cement core sample and a cement-rock core sample that are associated with a borehole setup, generating, based on the CT scan data of the metal-cement core sample and the cement-rock core sample, a three-dimensional (3D) image of a synthesized metal, cement, and rock core sample, generating, by at least upscaling the synthesized metal, cement, and rock core sample, a multi-scale borehole digital model of the borehole setup, and calculating, using the multi-scale borehole digital model of the borehole setup and based on digital rock physics techniques, a predicted cement longevity.

公开(公告)号：US11897167B2

公开(公告)日：2024-02-13

申请号：US18074899

申请日：2022-12-05

Applicant: Oshkosh Corporation

Inventor： Bryan S. Datema ,  Cody D. Clifton ,  Jarrod M. Vagle ,  Xiang Gong ,  Zhenyi Wei

IPC: B28C5/42 ,  G01N33/38 ,  G01P3/44 ,  G01P1/02 ,  G01P15/02 ,  B28C7/02

CPC classification number: B28C5/422 ,  B28C5/4234 ,  B28C7/024 ,  B28C7/026 ,  B28C7/028 ,  G01N33/383 ,  G01P1/023 ,  G01P3/44 ,  G01P15/02 ,  B28C5/4272

Abstract: A mixer vehicle includes a mixer drum, a first acceleration sensor, a second acceleration sensor, and a controller. The first acceleration sensor is configured to produce first acceleration signals and the second acceleration sensor is configured to measure accelerations within the mixer drum to produce second acceleration signals. The controller is configured to receive the first acceleration signals from the first acceleration sensor and second acceleration signals from the second acceleration sensor. The controller is further configured to determine a presence of material within the mixer drum based on the first acceleration signals and the second acceleration signals. The controller is further configured to determine one or more properties of the material within the mixer drum based on the first acceleration signals and the second acceleration signals.

公开(公告)号：US20230400427A1

公开(公告)日：2023-12-14

申请号：US18033742

申请日：2021-11-17

Applicant: Foundation of Soongsil University-Industry Cooperation

Inventor： Hajin CHOI ,  Joo-hye PARK ,  Do-yun KIM ,  So-hyun SIM ,  Jin-Young HONG

IPC: G01N27/02 ,  G01N33/38

CPC classification number: G01N27/026 ,  G01N33/383

Abstract: Provided is an impedance spectroscopy analytical method for concrete using machine learning. The method comprises identifying electrical flow through moisture and a conductive ion present in concrete using a node that measures electricity based on electrochemical impedance spectroscopy (EIS); generating a theoretical equivalent circuit model comprising a conductive path reflecting the electrical flow: normalizing an equivalent circuit reflecting a concrete microstructure based on an impedance experiment using the theoretical equivalent circuit model; and generating a predictive model for estimating a water and cement ratio from a parameter value of the equivalent circuit through machine learning. Accordingly, the accuracy and reliability of estimating the microstructure and mixing ratio of the cement-based material can be increased.

公开(公告)号：US20230393115A1

公开(公告)日：2023-12-07

申请号：US18447582

申请日：2023-08-10

Applicant: GIATEC SCIENTIFIC INC.

Inventor： POURIA GHODS ,  ROUHOLLAH ALIZADEH ,  MUSTAFA SALEHI ,  SARAH DE CARUFEL

IPC: G01N33/38 ,  B28C7/02 ,  C04B40/00 ,  B28B23/00 ,  G01N17/04 ,  G01N27/04

CPC classification number: G01N33/383 ,  B28C7/02 ,  C04B40/0096 ,  B28B23/0031 ,  G01N17/04 ,  G01N27/048 ,  G01N2203/0092

Abstract: Concrete can be one of the most durable building materials where consumption is projected to reach approximately 40 billion tons in 2017 alone. Despite this the testing of concrete at all stages of its life cycle is still in its infancy although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Accordingly, by exploiting self-contained wireless sensor devices, which are deployed with the wet concrete, the in-situ curing and maturity measurement data can be established and employed together with batch specific concrete data to provide rapid initial tests and evolving performance data regarding the concrete cure, performance, corrosion of concrete at different points in its life cycle. Such sensors remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment.

公开(公告)号：US11835490B2

公开(公告)日：2023-12-05

申请号：US17233481

申请日：2021-04-17

Applicant: ZHEJIANG UNIVERSITY

Inventor： MingWang Tey

IPC: G01N33/38 ,  G01N3/30 ,  G01N3/06 ,  G01N29/04

CPC classification number: G01N3/066 ,  G01N3/30 ,  G01N33/383 ,  G01N29/045 ,  G01N2203/001 ,  G01N2203/0039 ,  G01N2203/0058

Abstract: The invention relates to a device and method for detecting the grout compactness of splice sleeve, the device comprising a preloading member, a force transmission rod, a telescopic adjustment member, a vibration sensor and a data acquisition system. The rigid preloading member is used to fix the force transmission rod to the wall where the connecting structure of the splice sleeve is located, so that the end of the force transmission rod can be securely fastened to a rebar surface of a splice sleeve to be detected; the vibration sensor is fixed to the force transmission rod; the data acquisition system is used to acquire vibration signals from the vibration sensor. The grout compactness of splice sleeve is quantitatively analyzed, and a time-domain and frequency-domain signal may be used to obtain a peak-to-width ratio RNpw and a peak frequency ΩPeak signal to serve as a standard for the quantitative analysis.