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公开(公告)号：US12123817B2
公开(公告)日：2024-10-22
申请号：US18234047
申请日：2023-08-15
申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security
摘要： A device to determine density includes a housing, a first transducer disposed in the housing at a first position, and a second transducer disposed in the housing at a second position. The second transducer is located a distance from the first transducer. The device also includes a controller that reads a first output from the first transducer, and reads a second output from the second transducer. The controller determines a density of a liquid based on the first output, the second output, and the distance.
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公开(公告)号：US12105041B2
公开(公告)日：2024-10-01
申请号：US17974832
申请日：2022-10-27
发明人： Cheol Min Park , Jeongok Park , Seung Won Lee , Ji Hye Jang , Hye Jin Kim , Kyoung Jin Lee
CPC分类号： G01N27/07 , G01N27/14 , G01N27/226 , G01N2201/1211 , G01N2201/1218
摘要： A detection device includes a substrate, first electrodes formed on a first surface of the substrate, a responsive layer, and second electrodes formed on a first surface of the responsive layer, each of the second electrodes are capacitively coupled to one of the first electrodes and each second electrode is connected to a power supply to provide driving power.
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公开(公告)号：US11994484B2
公开(公告)日：2024-05-28
申请号：US17703783
申请日：2022-03-24
发明人： Kevin Freedman , Vinay Sharma
IPC分类号： G01N27/06 , G01N27/447 , G01N33/487 , G01N11/04
CPC分类号： G01N27/06 , G01N33/48728 , G01N11/04 , G01N27/447
摘要： A method includes providing a fluid to a structure including an aperture, applying a voltage signal to a circuit that includes the fluid, applying a substantially periodic pressure signal to the fluid, detecting a current signal in the circuit as an analyte passes through the aperture in response to the substantially periodic pressure signal, and processing the current signal and the substantially periodic pressure signal to determine a switch time and a release time for the analyte. An apparatus includes a structure including an aperture to receive a fluid, a voltage source to provide a voltage signal to an electronic circuit having a path that includes the aperture, a pressure signal generator to provide a substantially periodic pressure signal to the fluid, and a system to process the periodic pressure signal and a current signal induced in the electronic circuit.
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公开(公告)号：US20240167068A1
公开(公告)日：2024-05-23
申请号：US18569372
申请日：2022-06-30
发明人： Senne DILLEN , Lore DE BRUYNE , Michiel HOLTOF
CPC分类号： C12P19/34 , C12N9/1252 , G01N21/59 , G01N27/06
摘要： The present invention relates to the field of nucleic acid production, in particular in vitro RNA transcription. More specifically, the present invention relates to a method wherein physicochemical properties of the reaction mixture are monitored in order to timely stop the reaction and/or to add fresh reagents to allow the reaction to continue under optimal conditions. In particular, conductivity, but also pH and/or optical density is determined at at least two different time points, or continuously during the in vitro transcription reaction.
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公开(公告)号：US11977041B2
公开(公告)日：2024-05-07
申请号：US17385145
申请日：2021-07-26
IPC分类号： G01N27/06 , G01F23/00 , G01N1/14 , G01N33/28 , G01R31/382
CPC分类号： G01N27/06 , G01N1/14 , G01N33/28 , G01F23/00 , G01R31/382
摘要： Systems, methods, and a machine readable medium for measuring conductivity in a hydrocarbon sample are provided. An example conductivity analyzer includes a peristaltic pump to flow the hydrocarbons over a temperature controller and a conductivity probe. The temperature controller includes a Peltier block. The conductivity analyzer also includes the conductivity probe.
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6.发明授权公开(公告)号：US11921073B2
公开(公告)日：2024-03-05
申请号：US17710452
申请日：2022-03-31
申请人： Meas France
发明人： Fabien Gayrard , Antoine Sirven , Vincent Ducere
CPC分类号： G01N27/07 , G01N27/026 , G01N29/022
摘要： A fluid sensor includes a tuning fork mechanical resonator including a base and a tine projecting from the base along a longitudinal direction of the tine, and a pair of electrodes disposed on the tine. The base and the tine are formed from a piezoelectric material including lithium tantalate. The electrodes are exposed to a fluid.
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公开(公告)号：US20230349960A1
公开(公告)日：2023-11-02
申请号：US18213450
申请日：2023-06-23
申请人： Philip SALKIE
发明人： Philip SALKIE
摘要： In some embodiments, the conductivity measurement device includes a conductivity probe, a solid state switch device, and a DC measurement circuit. The conductivity probe includes a first and second measurement pin used to measure a conductivity of the liquid. The solid state switch device is coupled to the conductivity probe and is configured to connect and disconnect the first measurement pin and second measurement pin to a first DC reference voltage and a second DC reference voltage. The DC measurement circuit is configured to generate a measurement signal such that the measurement signal is maintained at a first DC reference voltage and the first DC reference voltage is applied to the solid state switch device from the DC measurement circuit. In this manner, an alternating current (AC) voltage is applied to the measurement pins utilizing DC reference voltages, which helps to avoid contamination of the liquid.
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公开(公告)号：US11802863B2
公开(公告)日：2023-10-31
申请号：US16966443
申请日：2019-01-30
摘要： An oil condition determination system includes a resistance value measurement unit and a determination unit. The resistance value measurement unit applies a measurement voltage between a pair of measurement electrodes in contact with oil to measure a resistance value of the oil. The determination unit determines, when a change tendency of the resistance value of the oil is reversed, that condition of the oil is changed.
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公开(公告)号：US20230296545A1
公开(公告)日：2023-09-21
申请号：US17697515
申请日：2022-03-17
申请人： Robert Bosch GmbH
发明人： Mordechai KORNBLUTH , Shilpa PANT , Kaushal SAGAR
CPC分类号： G01N27/06 , B01L3/502715 , G01N21/64 , B01L2300/0645 , B01L2300/0654
摘要： A sensing device including film sensor, a second sensor, and a controller. The film sensor includes a receptor capturing an intended analyte and an unintended analyte in a fluid medium to generate a film sensor signal. The receptor has a receptor cross-sensitivity to the unintended analyte. The second sensor contacts the fluid medium including the intended analyte and the unintended analyte to generate a second sensor signal. The second sensor has a second cross-sensitivity to the unintended analyte different than the receptor cross-sensitivity to the unintended analyte. The controller is programmed to determine a concentration of the intended analyte in the fluid medium in response to the film sensor signal, the receptor cross-sensitivity, the second sensor signal, and the second cross-sensitivity.
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公开(公告)号：US11761870B2
公开(公告)日：2023-09-19
申请号：US17827384
申请日：2022-05-27
申请人： The Government of the United States of America, as represented by the Secretary of Homeland Security
摘要： A device to determine density includes a housing, a first transducer disposed in the housing at a first position, and a second transducer disposed in the housing at a second position. The second transducer is located a distance from the first transducer. The device also includes a controller that reads a first output from the first transducer, and reads a second output from the second transducer. The controller determines a density of a liquid based on the first output, the second output, and the distance.
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