公开(公告)号：US12031956B2

公开(公告)日：2024-07-09

申请号：US17524696

申请日：2021-11-11

Applicant: ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Qinyong Ma ,  Qingqing Su ,  Pu Yuan

IPC: G01N3/313 ,  E21D9/00 ,  G01N3/06 ,  G01N33/24 ,  G01V20/00

CPC classification number: G01N3/313 ,  E21D9/003 ,  G01N3/066 ,  G01N3/068 ,  G01N33/24 ,  G01V20/00 ,  G01N2203/001 ,  G01N2203/003 ,  G01N2203/0075 ,  G01N2203/0623 ,  G01N2203/0641

Abstract: A system of monitoring vibration of a blasting model test for a jointed rock mass and a method are provided. The system includes: a loading subsystem for three-way load, a model-surface blasting-vibration acquisition subsystem, and a model-interior dynamic stress-strain acquisition subsystem. The system and the method are provided, and a blasting model for a transparent jointed rock mass and a monitoring method that are obtained can analyze the influence of a joint inclination angle on propagation and attenuation laws of blasting stress waves in the jointed rock mass, and can analyze the influence of different millisecond blasting modes on the stability of an existing tunnel in the jointed rock mass, and can capture a real-time dynamic evolution process of cracks. The stress and strain measurement technologies used can perform omnibearing monitoring and recording for large deformations of surrounding rock under blasting load, and can resist the electromagnetic interference.

公开(公告)号：US11835508B2

公开(公告)日：2023-12-05

申请号：US17235685

申请日：2021-04-20

Applicant: China University Of Geosciences

Inventor： Fei Tan ,  Zhongmin Mao ,  Yuyong Jiao ,  Lingling He ,  Jiahe Lv ,  Junpeng Zou ,  Yi Cheng ,  Fubin Tu

IPC: G01N33/24 ,  G01N3/36 ,  G01V99/00

CPC classification number: G01N33/24 ,  G01N3/36 ,  G01V99/005 ,  G01N2203/0067 ,  G01N2203/0286 ,  G01N2203/0641

Abstract: The present invention discloses a model test device for ground collapse caused by pipeline leakage, including a sand box, a pipeline water circulation device, a groundwater replenishment device, a water storage tank and a water head measuring pipe set. The sand box includes a sand box body and a mesh sieve plate. There are two mesh sieve plate which divides an inner cavity of the sand box into a penetration cavity and a test cavity. Corresponding positions on the side wall of the test cavity are provided with a tunnel construction hole and a plurality of pipe mounting hole groups, respectively. One side wall of the test cavity is provided with a plurality of rows. There is a plurality of rows of water head measuring hole groups, and each row is provided with a plurality of the water head measuring hole groups.

公开(公告)号：US11802824B2

公开(公告)日：2023-10-31

申请号：US17257367

申请日：2020-02-18

Applicant: OULUN YLIOPISTO

Inventor： Marcos de Paiva Bueno ,  Janne Torvela ,  Rajiv Chandramohan

IPC: G01N3/08 ,  B02C4/02 ,  B02C4/32 ,  B02C4/42 ,  G01N33/22 ,  G01N3/06 ,  G01N33/24

CPC classification number: G01N3/08 ,  B02C4/02 ,  B02C4/32 ,  B02C4/42 ,  G01N3/068 ,  G01N33/22 ,  G01N33/24 ,  G01N2203/0019 ,  G01N2203/0037 ,  G01N2203/0087 ,  G01N2203/0284 ,  G01N2203/0641

Abstract: The invention relates to a test arrangement for testing breakage and mechanical properties of rock particles. Test arrangement comprises a support (1, 2) and two counter-rotatable crushing rolls (3, 3′) supported on the support (1, 2) and a drive arrangement (M1, M2) for rotating the crushing rolls (3, 3′). Crushing rolls (3, 3′) are facing each other and defining therebetween an input gap (G) for the rock particles, said rolls being arranged to crush rock particles (RP) to smaller daughter particles (DP). Test arrangement comprises a force measurement arrangement (7, 7′) for determining the compressive strength of rock particles (RP). Force measurement arrangement (7, 7′) being coupled to a processor (PR) comprised by the test arrangement. The processor (PR) being arranged to calculate the breakage force applied to each rock particle (RP) over time. The test arrangement (TA) further comprises an energy measurement arrangement (5, 5′) for measuring information relating to energy applied to each rock particle (RP), said energy measurement arrangement (5, 5′) being coupled to said processor (PR), said processor (PR) being arranged to calculate energy applied to each rock particle (PR).

公开(公告)号：US11714017B2

公开(公告)日：2023-08-01

申请号：US17804105

申请日：2022-05-26

Applicant: Stevanato Group S.P.A.

Inventor： Alberto Chillon ,  Barnaba Marchesini

IPC: G01L27/00 ,  G01N3/12 ,  G01L1/02 ,  A61M5/00

CPC classification number: G01L27/005 ,  G01N3/12 ,  A61M5/008 ,  A61M2205/70 ,  G01L1/02 ,  G01N2203/04 ,  G01N2203/0641

Abstract: A test unit for measuring internal pressure in a cylindrical glass container includes a support adapted for housing the cylindrical glass container during a test phase, defining a longitudinal axis; a piston for selectively exerting a predetermined axial force in a longitudinal direction substantially parallel to the longitudinal axis and for actuating a plunger movable along the longitudinal axis; at least one measuring sensor for measuring a change in diameter in a transverse direction to the longitudinal axis; a programmable control unit operatively connected to the measuring sensor and configured to correlate a diameter change measured by the measuring sensor in the presence of a predetermined axial force with reference internal pressure values to which the measured diameter change and the predetermined axial force correspond. Associated processes for measuring internal pressure in a cylindrical glass container are further disclosed.

公开(公告)号：US20180340873A1

公开(公告)日：2018-11-29

申请号：US15989712

申请日：2018-05-25

Applicant: China University of Petroleum-Beijing

Inventor： Guangqing Zhang ,  Ying Lin ,  Xiao Yang ,  Yuanyuan Wang

IPC: G01N3/10

CPC classification number: G01N3/10 ,  G01N3/00 ,  G01N33/24 ,  G01N2203/0048 ,  G01N2203/0067 ,  G01N2203/0298 ,  G01N2203/0641

Abstract: An experimental method for indoor real-time dynamic monitoring of a hydraulic fracture width, comprising the steps of: test piece preparation: assembling a prefabricating mold and fixing a fiber grating therein; mounting a simulated wellbore in the prefabricating mold, pouring agitated cement mortar into the prefabricating mold, and the cement mortar is solidified to form a test piece; mounting the test piece into a confining pressure chamber of a true triaxial hydraulic fracturing simulation device, connecting a liquid injection line to the true triaxial hydraulic fracturing simulation device, and connecting the fiber grating to a modem that is connected to a computer; hydraulic fracture width monitoring test: injecting liquid into the confining pressure chamber of the true triaxial hydraulic fracturing simulation device through the liquid injection line to apply three-direction confining pressures to the test piece, injecting liquid into the simulated wellbore, and starting the fiber grating and the modem to dynamically monitor the hydraulic fracture width in the test piece; and when a hydraulic fracture inside the test piece reaches an outer surface of the test piece, ending the test.

公开(公告)号：US20180186074A1

公开(公告)日：2018-07-05

申请号：US15845027

申请日：2017-12-18

Applicant: 3D Systems, Inc.

Inventor： Charles W. Hull

IPC: B29C64/277 ,  B29C64/268 ,  B29C64/393 ,  B29C64/153

CPC classification number: B29C64/277 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/268 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  G01N2203/0641 ,  G01N2203/0652 ,  G05B2219/37573 ,  G05B2219/49023 ,  Y02P10/295 ,  B22F2203/11 ,  B22F2201/11

Abstract: Methods and apparatus are provided for controlling the temperature of powders in a powder-based additive manufacturing system using spatial light modulation. Powder layer temperatures can be measured and selectively controlled using a radiation source comprising a spatial light modulator. The spatial light modulator applies a visible light radiation and/or IR radiation. In addition to controlling the pre-fused temperature of the powder in the image plane, the spatial light modulator can also apply the radiation to fuse the powder.

公开(公告)号：US20180003586A1

公开(公告)日：2018-01-04

申请号：US15622073

申请日：2017-06-13

Applicant: PoweChina Huadong Engineering Corporation Limited

Inventor： Miaojun Sun ,  Mingyuan Wang ,  Zhigang Shan ,  Shengjie Di ,  Wenbo Du

IPC: G01M5/00 ,  G01L1/24 ,  G01B11/16

CPC classification number: G01M5/0058 ,  G01B11/16 ,  G01B11/18 ,  G01L1/242 ,  G01M5/0025 ,  G01M5/0091 ,  G01N2203/0069 ,  G01N2203/0274 ,  G01N2203/0641

Abstract: The present invention relates to a stress-strain testing system for a large-diameter steel pipe pile of an offshore wind turbine and a construction method, comprising a steel pipe pile, wherein copper belt type sensor cables are correspondingly welded on both sides of the steel pipe pile along an axis direction; each sensor cable is sequentially covered with an epoxy adhesive, gold foil paper and an angle steel welded on the steel pipe pile centering on the copper belt type sensor cable; a fiber core of each copper belt type sensor cable is transferred into a high-strength armored optical cable by a special fixture and then is led out; and the high-strength armored optical cable is connected with a Brillouin optical fiber demodulator. The present invention is applicable to the field of foundation engineering testing and detection technology.

公开(公告)号：US20170268970A1

公开(公告)日：2017-09-21

申请号：US15505929

申请日：2015-07-24

Applicant: Karlsruher Institut fuer Technologie

Inventor： Kai Heinlein ,  Arnold Mager ,  Rosemarie Wagner

IPC: G01N3/06 ,  G01N3/24 ,  G01N3/08

CPC classification number: G01N3/068 ,  G01N3/08 ,  G01N3/24 ,  G01N2203/0017 ,  G01N2203/0025 ,  G01N2203/0254 ,  G01N2203/0282 ,  G01N2203/0641 ,  G01N2203/0647 ,  G01N2203/0682

Abstract: A method for determining material parameters includes applying a character grid over a planar sample, clamping the planar sample in a frame in accordance with directions of orthotropy of the planar sample; collecting a first set of data that describes a first position of the character grid; applying predetermined normal and shear stresses to the planar sample thereby bringing the planar sample into a deformed state and changing the position of the character grid; collecting a second set of data that describes a second position of the character grid, determining a relative position change of the character grid by correlating the collected first set of data and the second set of data; determining a relative displacement and a current distortion state of the planar sample; determining a deformation equilibrium of the deformed state of the planar sample; and calculating the material parameters from the deformation equilibrium.

公开(公告)号：US20130088710A1

公开(公告)日：2013-04-11

申请号：US13646707

申请日：2012-10-07

Applicant: Francois Jean Michel Bergeron

Inventor： Tiberius Eugen Brastaviceanu ,  Ivan Alexandrovich Pavlov

IPC: G01B11/14

CPC classification number: G01B11/14 ,  G01B11/002 ,  G01B11/18 ,  G01L1/242 ,  G01N2203/0073 ,  G01N2203/0089 ,  G01N2203/0641

Abstract: A displacement and force sensor device using as a transducer an opto-mechanical assembly including an optical guide is claimed here. The transducer operates in bending mode, where the amount of bending induces a change in light signal intensity propagating through the transducer. The change in light signal is proportional to the bending and proportional to the force applied on the transducer after calibration of the said transducer. The transducer is free-ended and needs at least one point of contact with the test specimen to induce bending or with the material in contact with the test specimen. The sensor can give information about displacement and force. Said specimen can be solid, liquid or gas. The transducer can be incorporated into a material which stiffness is measured. The transducer is capable of sensing displacement in the sub-pm scale, with sub-ms time resolution, and to measure forces as small as 10−6 N.

Abstract translation: 这里要求使用用作换能器的光学机械组件的位移和力传感器装置。 传感器以弯曲模式工作，其中弯曲量引起通过传感器传播的光信号强度的变化。 光信号的变化与弯曲成正比，并且与在所述传感器校准之后施加在换能器上的力成比例。 传感器是自由端的，并且需要与试样的至少一个接触点以引起弯曲或与试样接触的材料。 传感器可以提供关于位移和力的信息。 所述样品可以是固体，液体或气体。 传感器可以被结合到测量刚度的材料中。 传感器能够感测sub-pm刻度中的位移，具有sub-ms时间分辨率，并测量力小至10-6 N。

公开(公告)号：US20130081485A1

公开(公告)日：2013-04-04

申请号：US13277899

申请日：2011-10-20

Applicant: Md. Amanullah ,  John T. Allen ,  Mohammed H. Kilani

Inventor： Md. Amanullah ,  John T. Allen ,  Mohammed H. Kilani

IPC: G01N15/02

CPC classification number: G01N33/2823 ,  C09K8/03 ,  C09K2208/18 ,  G01N3/56 ,  G01N15/0211 ,  G01N2203/0087 ,  G01N2203/0641

Abstract: A method for quality control and quality assurance of sized bridging materials rotates a control sample having a fluid portion and a solids portion of sized bridging materials in a tubular container for a predetermined period of time. The control sample is then analyzed in a laser particle size analyzer to determine a particle size distribution for the control sample. A wet grinding sample having a fluid portion and a solids portion of the sized bridging materials is then rotated in the tubular container with a loose cylinder rod for a predetermined time to simulate borehole conditions. The wet grinding sample is then analyzed in the laser particle size analyzer to determine a particle size distribution for the wet grinding sample. The two particle size distributions are used to define a shift factor that represents the relative strength of the sized bridging materials.

Abstract translation: 尺寸桥接材料的质量控制和质量保证的方法将具有流体部分和尺寸的桥接材料的固体部分的对照样品在管状容器中旋转预定时间段。 然后在激光粒度分析仪中分析对照样品以确定对照样品的粒度分布。 然后将具有流体部分和大小的桥接材料的固体部分的湿研磨样品在具有松动的气缸杆的管状容器中旋转预定时间以模拟钻孔条件。 然后在激光粒度分析仪中分析湿研磨样品，以确定湿研磨样品的粒度分布。 两个粒度分布用于定义表示尺寸的桥接材料的相对强度的位移因子。