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公开(公告)号：US20230134944A1
公开(公告)日：2023-05-04
申请号：US17918142
申请日：2021-02-16
申请人： Hitachi, Ltd.
发明人： Rintarou MINAMITANI
摘要： A corrosive environment monitoring device that suppresses a decline in measurement precision in an initial period of monitoring the corrosivity of an environment and measures the corrosivity of the environment continuously and with high precision over a long period of time. The corrosive environment monitoring device includes: a layered body having an insulating plate, a base metal thin film that is formed on the insulating plate and is corrosion resistant with respect to a corrosive substance, and a sensing metal thin film that is formed on the base metal thin film and is corrosion susceptible with respect to the corrosive substance; and a housing that encloses the layered body, has an opening oriented in a side face direction, and forms a gas passage inside for the corrosive substance, wherein the sensing metal thin film is formed in a limited region on the base metal thin film.
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公开(公告)号：US20230126652A1
公开(公告)日：2023-04-27
申请号：US17907433
申请日：2021-03-30
IPC分类号： G02F1/1335 , G01N17/00
摘要： The present disclosure addresses the problem of providing an optical plastic film such that rainbow unevenness when viewed with naked eyes and blackout when viewed with polarized sunglasses can be suppressed without any axis alignment or increase in the in-plane phase difference. Disclosed is an optical plastic film satisfying the following conditions 1 and 2: when a large sample with a size of 200 mm×300 mm is cut out from a plastic film, the large sample is divided into 30 small samples of 40 mm×50 mm, a region of 30 mm×40 mm obtained by excluding 5 mm from each edge of each small sample is subdivided into 47,000 or more regions, and an in-plane phase difference of each subdivided region is then measured, a percentage of small samples in which an average of the in-plane phase difference of each region measured is 50 nm or more and 1,200 nm or less, among the 30 small samples is 50% or more; and when the 30 small samples are processed in the same manner as in condition 1 and an angle of slow axis of each subdivided region of each small sample is measured, a percentage of small samples in which a standard deviation a calculated from the angle of slow axis of each region measured is 0.8 degrees or more, among the 30 small samples is 50% or more.
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公开(公告)号：US20230119268A1
公开(公告)日：2023-04-20
申请号：US17914346
申请日：2020-03-25
摘要： A heat transfer surface monitoring (HTSM) system and cell for direct detection and monitoring of fouling, scaling, corrosion, and pitting of heat transfer surfaces. The system has a heat transfer plate (HTP) that has a heat transfer monitoring surface (HTMS). The system also includes an edge-lit light guide and light source to illuminate the HTMS, a fluid flow channel module, a heating/cooling module, a surface imaging module to view the HTMS, and a system controller. The environment is controlled to mimic the environment within heat exchange equipment, which are indicative of the changes inside heat exchange equipment. Output of signals relating to the HTMS are used as a guide mitigate problems related to the monitored heat exchange equipment. The system can also use a heat exchanger cylindrical tube with slit light guides along the tube, and the surface imaging module views the inner surface of the heat exchanger cylindrical tube.
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公开(公告)号：US11619598B2
公开(公告)日：2023-04-04
申请号：US17572589
申请日：2022-01-10
申请人： DELTA SUBSEA, LLC
IPC分类号： G01N23/12 , G01B15/02 , G01N17/00 , G01N23/00 , G01N23/02 , G01N23/18 , B63G8/00 , G01N9/24 , G01N11/04 , G05D1/00
摘要： The present disclosure provides systems, apparatuses, and methods for measuring submerged surfaces. Embodiments include a measurement apparatus including a main frame, a source positioned outside a pipe and connected to the main frame, and a detector positioned outside the pipe at a location diametrically opposite the source and connected to the main frame. The source may transmit a first amount of radiation. The detector may receive a second amount of radiation, determine a composition of the pipe based on the first and second amounts of radiation, and send at least one measurement signal. A control canister positioned on the main frame or on a remotely operated vehicle (ROV) attached to the apparatus may receive the at least one measurement signal from the detector and convey the at least one measurement signal to software located topside.
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公开(公告)号：US11612841B2
公开(公告)日：2023-03-28
申请号：US17351503
申请日：2021-06-18
申请人： Caterpillar Inc.
IPC分类号： B01D35/143 , G01N33/28 , G01F23/22 , F01M11/10 , G01N17/00
摘要： A sensing system for detecting degradation of a machine fluid is disclosed. The sensing system may comprise a tag having electrical contacts. The tag may be configured to transmit a wireless signal when the electrical contacts are in electrical communication. The sensing system may further comprise a dissolvable element separating the electrical contacts and obstructing electrical communication between the electrical contacts. The dissolvable element may be configured to dissolve and allow electrical communication between the electrical contacts when an acid content of the machine fluid reaches a level indicative of the degradation of the machine fluid.
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公开(公告)号：US11598714B1
公开(公告)日：2023-03-07
申请号：US17833722
申请日：2022-06-06
申请人： MATERGENICS, INC.
摘要： A non-destructive testing apparatus generates an electric current in a test coupon that is adjacent to the metallic structure. The non-destructive testing apparatus measures the electric current to produce at least one electric current measurement. The non-destructive testing apparatus correlates the at least one electric current measurement with the quantity of a predetermined iron oxide in the test coupon to determine a proxy for the degree of alternating current interference corrosion in the metallic structure.
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公开(公告)号：US11592387B2
公开(公告)日：2023-02-28
申请号：US16779624
申请日：2020-02-02
申请人： The Boeing Company
发明人： Philipp A. Boettcher , Eddie Kwon
IPC分类号： G01N17/00
摘要： A method for testing physical properties of a material includes inserting coherent light into a waveguide such that the coherent light exits the waveguide at an end of the waveguide that is embedded within the material, thereby causing the coherent light to interact with the material. The method also includes detecting a reaction of the material to the coherent light.
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公开(公告)号：US11583822B2
公开(公告)日：2023-02-21
申请号：US17315216
申请日：2021-05-07
申请人： Southwest Petroleum University , Engineering Technology Research Institute, Southwest Oil and Gas Field Company of Petro China
发明人： Zhi Zhang , Jinming Liu , Huali Zhang , Yufei Li , Jiawei Wang , Duo Hou , Jian Ding , Yuanjin Zhao , Lin Zhang , Wei Luo , Chuanlei Wang , Pengfei Sang
摘要： A piston pressure device includes a gas concentration-regulating piston pressure device and a high temperature autoclave. In the gas concentration-regulating piston pressure device, the proportion and concentration of corrosive gases can be accurately adjusted, intermediate gases can be stored and filled into the high temperature autoclave according to experimental needs, and an actual corrosion process in oilfield is accurately simulated. Meanwhile, the corrosive gases can be supplemented in real time during the experiment, and dynamic gas distribution in a high-temperature high-pressure corrosion experiment process is realized. The present invention has the advantages as follows: the piston pressure device is resistant to high temperature and high pressure, corrosion-resistant, simple in structure and convenient to operate; the concentration and proportion of the corrosive gases are accurately controlled to be invariable in the high-temperature high-corrosion experiment process; and reliability of high-temperature high-pressure corrosive experimental results is increased.
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公开(公告)号：US11555864B2
公开(公告)日：2023-01-17
申请号：US17513255
申请日：2021-10-28
发明人： Saman Mostafavi , Hong Yu , Ajay Raghavan , Peter Kiesel
IPC分类号： G01R29/20 , G01R31/62 , G01J3/18 , G01L1/24 , H01F27/08 , H04B3/46 , G01N17/00 , H01F27/02 , G01R19/25 , G01R35/02 , G01R31/72 , G01R31/52 , G01R1/28 , G01R31/34 , G01R15/20
摘要： A monitoring system includes an array of optical sensors disposed within a transformer tank. Each optical sensor is configured to have an optical output that changes in response to a temperature within the transformer tank. An analyzer is coupled to the array of optical sensors. The analyzer is configured to determine a sensed temperature distribution based on the sensed temperature. The sensed temperature distribution is compared to an expected distribution. Exterior contamination of the transformer tank is detected based on the comparison.
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公开(公告)号：US20230012228A1
公开(公告)日：2023-01-12
申请号：US17728225
申请日：2022-04-25
摘要： A test system for detecting corrosion under a coating on a structure, the coating being transmissive to microwaves and the surface being reflective to microwaves. A microwave generator generates microwaves of a desired power and frequency, which are delivered to a test head that both transmits the microwaves to the surface and receives the microwaves as reflected from the structure. A corrosion detection processor measures the phase and amplitude of the reflected signal, and compares measurement data to reference data to determine if corrosion under the coating is indicated.
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