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公开(公告)号：US3979667A
公开(公告)日：1976-09-07
申请号：US532672
申请日：1974-12-13
Applicant: Nigel W. Cornes
Inventor： Nigel W. Cornes
CPC classification number: G01R19/16571 , G01N33/246 , G01R17/16 , G01R27/02 , G01N27/048
Abstract: A domestic soil-moisture indicator of the kind including a probe comprising a pair of electrodes with spaced ends for insertion in the soil whereby the resistance of the conductive path established between them by the soil to be tested varies in resistance with the moisture of the soil. The improvement comprises a control circuit responsive to the value of the variable resistance and including a pair of light-emitting devices, connected in such a way that the total power between them is substantially constant and, at one end of the scale of value of the variable resistance, one device is fully on and the other is off, while at the other end of the scale the one device is off and the other is fully on, the brightness of the two devices varying between these extremes for intermediate values. The light-emitting devices are preferably light-emitting diodes each of which is connected in series with one of a complementary pair of emitter-following transistors connected to the division point of a potential divider consisting of the variable soil resistance and a fixed resistance connected in series with one another across the source of supply.
Abstract translation: 一种家用土壤湿度指示器，包括一个探头，包括一对电极，间隔开的端部用于插入土壤中，由此被测试土壤在其间建立的导电路径的阻力随着土壤湿度的变化而变化 。 该改进包括响应于可变电阻的值的控制电路，并且包括一对发光装置，其以这样的方式连接，使得它们之间的总功率基本上是恒定的，并且在该值的一端 可变电阻，一个装置完全打开，另一个装置关闭，而在刻度的另一端，一个装置关闭，另一个装置完全打开，两个装置的亮度在这些极值之间变化，用于中间值。 发光装置优选是发光二极管，每个发光二极管与互连的一对发射极跟随晶体管串联连接，所述互补的一对发射极跟随晶体管连接到由可变的电阻构成的电位分配器的分割点和连接到 在供应来源上相互串联。
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公开(公告)号：US3898872A
公开(公告)日：1975-08-12
申请号：US40817473
申请日：1973-10-19
Applicant: SOILMOISTURE EQUIPMENT CORP
Inventor： SKALING PERCY E , SKALING WHITNEY
CPC classification number: G01N33/246
Abstract: A tensiometer for measuring the moisture content of soil, including a water-filled tube and a reservoir and valve assembly for removing entrapped air from the tube and replacing it with water from the reservoir. An exit passage between the reservoir and the tube is normally sealed by a valve closure on a hollow valve stem. As the stem and closure are moved to an open position, water is drawn through the exit passage to replace most of the air in the tube, and is also pumped into the tube through the hollow valve stem, by means of a plunger moving within a pump chamber in the reservoir. The pumped water sweeps air bubbles from the walls of the tube, and, as the valve stem and closure return to a closed position, water and any remaining air bubbles are drawn out through the hollow valve stem, the exit passage being resealed without application of positive pressure to the water in the tube.
Abstract translation: 用于测量土壤含水量的张力计，包括充水管和储存器和阀组件，用于从管中除去夹带的空气并用水替代储存器。 储存器和管之间的出口通道通常由中空阀杆上的阀盖密封。 当杆和闭合件移动到打开位置时，水被抽出通过出口通道以替换管中的大部分空气，并且还通过柱塞在中空阀杆内泵送进入管中 水箱中的泵室。 泵送的水从管壁吹扫气泡，并且当阀杆和盖子返回到关闭位置时，水和任何剩余的气泡通过中空阀杆被抽出，出口通道被重新密封，而不应用 对管中的水的正压力。
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公开(公告)号：US3026718A
公开(公告)日：1962-03-27
申请号：US85968059
申请日：1959-12-15
Applicant: RANDOLPH MATSON
Inventor： RANDOLPH MATSON
IPC: G01N33/24
CPC classification number: G01N33/246
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公开(公告)号：US20240353364A1
公开(公告)日：2024-10-24
申请号：US18640633
申请日：2024-04-19
Inventor： Kevin T. Turner , Gokulanand Meenakshisundaram Iyer , Gnana Saurya Vankayalapati , Michael Machold
CPC classification number: G01N27/223 , G01N33/246
Abstract: A composite, comprising: a first surface, a second surface, and a thickness between the first surface and the second surface, a porous scaffold having a plurality of pores extending from the first surface into the thickness, at least some of the plurality of pores being at least partially filled with cellulose nanofibrils, and the first surface of the composite having a root mean square (RMS) roughness of from about 0.01 to about 0.1 μm.
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公开(公告)号：US20240345059A1
公开(公告)日：2024-10-17
申请号：US18751277
申请日：2024-06-23
Applicant: MICHAEL SMITH
Inventor： MICHAEL SMITH
CPC classification number: G01N33/246 , E21B49/081 , G01L9/0095 , G01N1/286
Abstract: Provided herein are new methods of analyzing release-resistant water in materials, such as geologic materials. The methods of the invention typically comprise removal of extraneous water, e.g., by drying, preparing the material for the release of release-resistant water (e.g., by crushing the material, but typically not so greatly as to cause the release of fluid from hermetically sealed components, such as fluid inclusions), and then analyzing the amount of release-resistant water in the sample, either directly in-situ or by the additional step of extracting the release-resistant water and measuring the extraction. The invention also provides new devices and/or systems useful in the performance of such methods.
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Patent Agency Ranking
86.发明公开公开(公告)号：US20240272135A1
公开(公告)日：2024-08-15
申请号：US18452547
申请日：2023-08-20
Inventor： Youye ZHENG , Xin CHEN , Xiaofang DOU , Jianhui WU , Feng GAO , Yibin LIN , Jiancuo LUOSANG , Nan CHAO , Shunli ZHENG
IPC: G01N33/2028 , G01N33/24
CPC classification number: G01N33/2028 , G01N33/246
Abstract: In a method for determining metallogenic potential of a porphyry by using trace elements and a B isotope of tourmaline, redox properties of magma is determined with Fe3+/(Fe2++Fe3+) of tourmaline; then a water content and a content of metal Cu of the magma are determined with contents of H2O and Cu in the tourmaline; and a source of the magma is determined with a B isotope of the tourmaline, the water content, oxygen fugacity and metal content and source of the magma are finally determined, and finally, whether the magma has metallogenic potential of a porphyry is comprehensively determined. The present disclosure determines a key control factor of porphyry copper with a mineral of the tourmaline, and overcomes the difficulties in low efficiency, a long period and high cost of a traditional method for determining metallogenic potential.
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公开(公告)号：US20240272091A1
公开(公告)日：2024-08-15
申请号：US18291190
申请日：2022-07-25
Inventor： Albin GASIEWSKI , Eryan DAI , Jack ELSTON , Maciej STACHURA , Michael HUROWITZ
CPC classification number: G01N22/04 , G01N33/246
Abstract: A method for determining soil moisture of a scene includes (i) generating a first antenna output in response to an upwelling thermal emission from the scene. (ii) generating a second antenna output in response to a downwelling thermal emission from sky above the scene. (iii) coupling the first antenna output and the second antenna output to yield a combined output having a quadrature phase difference between the first antenna output and the second antenna output. (iv) calculating a brightness-temperature difference based at least partially on the combined output. and (v) calculating a soil moisture based on soil-vegetation radiative transfer model using the brightness-temperature difference.
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公开(公告)号：US12055534B2
公开(公告)日：2024-08-06
申请号：US17374912
申请日：2021-07-13
Applicant: Michael P. Smith
Inventor： Michael P. Smith
CPC classification number: G01N33/246 , E21B49/081 , G01L9/0095 , G01N1/286
Abstract: Provided herein are new methods of analyzing release-resistant water in materials, such as geologic materials. The methods of the invention typically comprise removal of extraneous water, e.g., by drying, preparing the material for the release of release-resistant water (e.g., by crushing the material, but typically not so greatly as to cause the release of fluid from hermetically sealed components, such as fluid inclusions), and then analyzing the amount of release-resistant water in the sample, either directly in-situ or by the additional step of extracting the release-resistant water and measuring the extraction. The invention also provides new devices and/or systems useful in the performance of such methods.
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公开(公告)号：US12031971B2
公开(公告)日：2024-07-09
申请号：US17847515
申请日：2022-06-23
Inventor： Wansheng Pei , Jiazuo Zhou , Mingyi Zhang , Zeliang Ye , Ruiqiang Bai
CPC classification number: G01N33/246 , G01N1/42 , G01N1/44 , G01N25/04 , G01N25/56 , G01N25/58 , G01N2001/2873
Abstract: The present disclosure provides a method for testing frost susceptibility of soils and an associated apparatus, and relates to the field of testing technology. The method includes: taking a part of a soil sample to be tested as test soil sample and freezing the test soil sample; taking a soil sample of outer layer from the test soil sample after the completion of freezing and measuring the moisture ratio of the soil sample of outer layer; and determining the frost susceptibility of the soil sample to be tested based on an initial moisture ratio and the moisture ratio of the soil sample of outer layer or based on the moisture ratio of the soil sample of outer layer and the moisture ratio of a soil sample of inner layer from the test soil sample after the completion of freezing, frost susceptibility.
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90.发明公开公开(公告)号：US20240183838A1
公开(公告)日：2024-06-06
申请号：US18242011
申请日：2023-09-05
Inventor： Donghao MA , Sicong WU , Jiabao ZHANG , Lianghong CHEN
IPC: G01N33/24
CPC classification number: G01N33/246 , G01N2033/245
Abstract: A method for quickly acquiring soil hydraulic properties in situ based on a ponded infiltration experiment is provided. The method adopts a novel derivation method, and is based on a Richards' equation and a Brooks-Corey model to derive an analytical solution that accurately describes one-dimensional infiltration into homogeneous soil under ponded conditions. The method, for the first time, provides a detailed description of a developing saturated zone in the soil water profile, which is the most vital infiltration characteristic during ponded infiltration. The method proposes an optimized estimation method for parameters based on an inverse process of the analytical solution. The method can quickly acquire soil hydraulic properties in situ field by measuring a cumulative infiltration amount and a length of a wetting front over time during one-dimensional ponded infiltration experiment through a time-domain reflectometer (TDR).
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