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公开(公告)号：US20240344969A1
公开(公告)日：2024-10-17
申请号：US18299474
申请日：2023-04-12
申请人： Nexcorr, LLC
发明人： Cheolho Kang
CPC分类号： G01N17/04 , G01N17/006
摘要： A system and its method are provided for monitoring corrosion. An example includes a sensing unit having a specimen stack for measuring, in real time, pitting corrosion, and a separate plate for measuring, in real time, general corrosion. Electric current applied to each the specimen stack and the separate plate may be measured, and in one example, measured electrical resistance is used to estimate both pitting corrosion and general corrosion. An example specimen stack includes at least four specimens each separated from one another by an insulating layer. A transmitter may transmit data from the sensing unit to a processor, and software of the processor may be capable of organizing the data into graphs. An example of the system may be useful for detecting both pitting corrosion and general corrosion in a pipeline.
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公开(公告)号：US12092563B2
公开(公告)日：2024-09-17
申请号：US18566664
申请日：2021-06-09
发明人： Raizo Maeda , Tetsuo Tanaka , Osamu Mizuno
CPC分类号： G01N17/04 , G01N17/006 , G01N17/02 , G01N33/0027
摘要： A sensor includes three structures, a measurer to measure a resistance value, an analyzer to identify the type of a corrosive gas present in an environment based on the resistance value and corrosion resistance information of the three structures, and a notification device. The three structures include a first structure, a second structure, and a third structure. The magnitude relation in corrosion resistance between the three structures differs between a first environment, a second environment, and a third environment. The corrosive gas of the first type is present and the corrosive gas of the second type is not present in the first environment. The corrosive gas of the second type is present and the corrosive gas of the first type is not present in the second environment. The corrosive gas of the first type and the corrosive gas of the second type are both present in the third environment.
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公开(公告)号：US20240264070A1
公开(公告)日：2024-08-08
申请号：US18566664
申请日：2021-06-09
发明人： Raizo MAEDA , Tetsuo TANAKA , Osamu MIZUNO
CPC分类号： G01N17/04 , G01N17/006 , G01N17/02 , G01N33/0027
摘要： A sensor includes three structures, a measurer to measure a resistance value, an analyzer to identify the type of a corrosive gas present in an environment based on the resistance value and corrosion resistance information of the three structures, and a notification device. The three structures include a first structure, a second structure, and a third structure. The magnitude relation in corrosion resistance between the three structures differs between a first environment, a second environment, and a third environment. The corrosive gas of the first type is present and the corrosive gas of the second type is not present in the first environment. The corrosive gas of the second type is present and the corrosive gas of the first type is not present in the second environment. The corrosive gas of the first type and the corrosive gas of the second type are both present in the third environment.
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公开(公告)号：US12007226B2
公开(公告)日：2024-06-11
申请号：US17757096
申请日：2020-12-08
CPC分类号： G01B15/02 , G01N17/006
摘要： A method for measuring a thickness of a deposit layer on a metal or alloy substrate using an X-ray fluorescence (XRF) spectrometer, where the deposit layer includes scale deposits or corrosion products. As part of the method, an elemental composition of the deposit layer or the metal or alloy substrate is measured using the XRF spectrometer. The thickness of the deposit layer is obtained from the elemental composition using a calibration relationship between deposit layer thicknesses and corresponding elemental compositions of the deposit layer or the metal/alloy substrate. The method can be applied to determine the rate of deposit layer formation and evaluate the effectiveness of a treatment.
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公开(公告)号：US11965818B1
公开(公告)日：2024-04-23
申请号：US17333370
申请日：2021-05-28
申请人： MOPEKA PRODUCTS LLC
CPC分类号： G01N17/006 , G01N17/02 , G01N17/04
摘要： A system for monitoring an underground propane tank, comprising a controller; a moisture sensor coupled in communication with the controller, wherein the controller is configured to measure a moisture associated with the tank; a voltage probe coupled in communication with the controller, wherein voltage probe is adapted to be disposed at least partially underground, and wherein the controller is configured to measure a potential difference between the tank and soil surrounding the tank, when the moisture associated with the tank is measured to be above a predetermined threshold; and an anode sensor coupled to an anode of the tank and coupled in communication with the controller, wherein the controller is configured to monitor the anode using the anode sensor.
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公开(公告)号：US11940083B2
公开(公告)日：2024-03-26
申请号：US17348494
申请日：2021-06-15
发明人： Hamad Alsaiari , Ali Alshehri , Ayman Amer , Ali Meshaikhis
CPC分类号： F16L59/14 , F16L53/30 , G01N17/006 , G01N25/56 , G01M99/002
摘要： Techniques for determining a thermal condition of a pipeline include identifying a pipeline that carries a fluid at a steady-state temperature, where the pipeline includes a tubular conduit that includes a bore that carries the fluid, and a layer of insulation installed over an exterior surface of the tubular conduit; changing the steady-state temperature of the fluid by applying a thermal contrast to the pipeline; based on changing the steady-state temperature, detecting a thermal gradient between the fluid carried in the bore and at least one of the tubular conduit or the layer of insulation at a particular location of the pipeline; and based on the detected thermal gradient, determining a presence of at least one of water or water vapor between the exterior surface of the tubular conduit and the layer of insulation at the particular location of the pipeline.
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公开(公告)号：US11867609B2
公开(公告)日：2024-01-09
申请号：US17265106
申请日：2019-06-28
发明人： Yosuke Takeuchi , Takashi Miwa , Takuya Kamisho , Soichi Oka
IPC分类号： G01N17/00 , G01N33/2045 , G01N33/38
CPC分类号： G01N17/006 , G01N33/2045
摘要： An accelerated corrosion test apparatus includes: a moisture sensor disposed near the reinforcing steel exposed from a cracked portion of concrete; a weight measuring instrument that measures a weight of the reinforced concrete specimen; and a control terminal that is connected both to the moisture sensor and to the weight measuring instrument and controls a temperature and humidity control device, thereby alternately and repeatedly performing a wetting step of supplying moisture to the inside of a crack in the cracked concrete, and a drying step of removing moisture in the inside of the crack and moisture on the exposed surface of the reinforcing steel, wherein the control terminal terminates the wetting step and starts the drying step when moisture is detected in the moisture sensor, or when change in slope of weight change of the reinforced concrete specimen is detected, after the start of the wetting step.
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公开(公告)号：US20230417652A1
公开(公告)日：2023-12-28
申请号：US18464703
申请日：2023-09-11
申请人： Homero Castaneda-Lopez , Lin Chen
发明人： Homero Castaneda-Lopez , Lin Chen
CPC分类号： G01N17/02 , G01N17/006
摘要： Provided herein are non-invasive and non-destructive methods for classifying the type of external corrosion defect and the severity thereof in the cathodic protection system on a buried pipeline. Mathematical tools and algorithms are utilized to classify the type and the severity of the corrosion defect.
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公开(公告)号：US11821817B2
公开(公告)日：2023-11-21
申请号：US17287215
申请日：2019-11-01
发明人： Shota Oki , Shingo Mineta , Mamoru Mizunuma , Masayuki Tsuda
CPC分类号： G01N17/006 , G01N17/02
摘要： To provide a technology capable of analyzing soil corrosion of an underground buried metal material. There is provided an electrode for analyzing corrosion of a buried metal material in real time, the electrode including: a metal portion composed of a metal material; a metal fixation portion covering and fixing the metal portion except on an exposed surface thereof; a plurality of particles arranged so as to be in contact with the exposed surface; a gelation substance portion covering the plurality of particles and being in close contact with the exposed surface and the metal fixation portion; and a conduction portion that secures electric conduction with the metal portion, wherein the plurality of particles and the gelation substance portion transmit light.
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公开(公告)号：US20230280191A1
公开(公告)日：2023-09-07
申请号：US17685207
申请日：2022-03-02
发明人： Shashwat Shukla , Arpana Singh
CPC分类号： G01D5/268 , G01N17/006 , G01N17/04 , G01D5/35316
摘要： HIC-resistant materials may include sensors embedded within or otherwise coupled thereto for use in a hydrogen service environment. In an example, a diagnostic system includes a first sensor embedded within a structural metal for exposure to hydrogen for generating a signal response to both the hydrogen and one or more parameter. A second sensor is embedded within the structural metal for generating another signal response to the one or more parameter. A hydrogen-suppressing layer is provided to suppress any response of the second sensor to the hydrogen. A controller in communication with the first and second sensors distinguishes the signal response of the first sensor from the signal response of the second sensor to characterize the hydrogen and the one or more other parameter.
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