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公开(公告)号：US20240003949A1
公开(公告)日：2024-01-04
申请号：US18329314
申请日：2023-06-05
发明人： Akira NAKATSU , Kentaro WATANABE
摘要： The resistance detection sensor is configured to detect the electrical resistance value of a liquid. This resistance detection sensor includes a pair of electrodes, a DC voltage application unit, an AC voltage application unit, and a control unit. The pair of electrodes are immersed in a liquid. The DC voltage application unit applies a DC voltage having a first polarity between the pair of electrodes. The AC voltage application unit applies an AC voltage between the pair of electrodes. The control unit calculates the electrical resistance value of the liquid, in a state where the DC voltage is applied between the pair of electrodes by the DC voltage application unit. The control unit controls the AC voltage application unit so as to apply an AC voltage starting from a second polarity opposite to the first polarity at a predetermined time interval between the pair of electrodes. The time period for which the AC voltage is applied between the pair of electrodes by the AC voltage application unit is not an integer multiple of the cycle of the AC voltage applied between the pair of electrodes.
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公开(公告)号：US11714078B1
公开(公告)日：2023-08-01
申请号：US16438312
申请日：2019-06-11
发明人： Timothy C. Johnson , Christopher E. Strickland , Yue Zhu , Jonathan N. Thomle , James C. Stegen
IPC分类号： G01N33/24 , G01L19/00 , G01K13/02 , G01N15/08 , G01N15/00 , G01R27/22 , G01L19/08 , G01K13/12 , G01N30/00
CPC分类号： G01N33/246 , G01K13/02 , G01K13/12 , G01L19/0092 , G01L19/083 , G01N15/088 , G01R27/22 , G01K13/026 , G01N2015/0034 , G01N2015/0833 , G01N2030/0095 , G01V2210/661
摘要： Systems for determining GW/SW interaction are provided. The systems can include: a sensing assembly comprising sensors for pressure, fluid conductivity, temperature, and transfer resistance; processing circuitry operatively coupled to the sensing assembly and configured to receive data from the sensing assembly and process the data to provide a GW/SW interaction, wherein the data includes pressure, fluid conductivity, temperature, transfer resistance data. Methods for determining GW/SW interaction are provided. The methods can include: receiving real time data including pressure, fluid conductivity, temperature, and transfer resistance; from at least some of the data received simulating the SW/GW interaction; and fitting the real time data with the simulated data to provide actual SW/GW interaction.
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公开(公告)号：US20230077341A1
公开(公告)日：2023-03-16
申请号：US17447478
申请日：2021-09-13
摘要： A fluid dispensing system with a fluid cartridge having a fluid reservoir and an ejection head. The ejection head has fluid ejectors that are in fluid flow communication with the fluid reservoir. A fluid detection circuit is electrically connected to at least one of the fluid ejectors. The fluid detection circuit is configured to detect and characterize a fluid in the fluid ejector, where the fluid detection circuit characterizes the resistivity of the fluid by adjusting an ejector voltage of the at least one of the fluid ejectors.
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公开(公告)号：US11543374B2
公开(公告)日：2023-01-03
申请号：US16328883
申请日：2017-08-09
发明人： Jung-Chih Chiao
IPC分类号： G01N27/02 , G01N33/49 , G01N33/14 , G01R27/22 , G01R33/34 , A61B5/05 , A61B5/024 , A61B5/145 , B07C5/344 , A61B5/055 , G01N29/036 , A61B5/00 , G01N24/08 , G01N29/02 , G01N33/04
摘要： Embodiments of the present disclosure provide an interrogation device that is operable to apply one or more source signals to one or more coils surrounding a volume, where a material is disposed within the volume. Each of the one or more source signals may excite one of the one or more coils, and the behavior of each the one or more coils responsive to the exciting may be monitored. One or more parameters may be determined based on the behavior of each the one or more coils, and the one or more parameters may be utilized to generate a signature for the material within the volume. The signature may be compared to one or more signatures of known materials to identify the material within the volume.
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公开(公告)号：US11287394B1
公开(公告)日：2022-03-29
申请号：US17497240
申请日：2021-10-08
申请人： Tsinghua University
摘要： The present disclosure provides a detection system and method for a distribution state of magnetic fluid in a sealing gap. The detection system includes: a detection assembly including a first capacitor plate, a second capacitor plate and a capacitance meter. The first capacitor plate is arranged at an inner circumferential surface of a pole piece in a sealing device, and the second capacitor plate is arranged at an outer circumferential surface of a rotating shaft in the sealing device. The first capacitor plate and the second capacitor plate are annular and opposite to each other in a radial direction of the rotating shaft, the sealing gap being formed between the first capacitor plate and the second capacitor plate. The capacitance meter is electrically connected with the first capacitor plate and the second capacitor plate to measure capacitance between the first capacitor plate and the second capacitor plate.
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6.发明申请公开(公告)号：US20210289846A1
公开(公告)日：2021-09-23
申请号：US17186227
申请日：2021-02-26
发明人： Jiagang Mei , Shengkui Lui , Chunfeng Zhang
摘要： The present disclosure relates to a system, a method, a device, and an electronic atomizing device for detecting a nicotine content in an e-liquid. The system includes: a sampling circuit configured to acquire characteristic parameters, and the characteristic parameters being configured to calculate an impedance of the e-liquid in an e-liquid containing component; and a controller electrically connected to the sampling circuit, configured to calculate the impedance of the e-liquid according to the characteristic parameters fed back by the sampling circuit, and determine the nicotine content in the e-liquid according to the impedance of the e-liquid and a preset corresponding relation between the impedance and the nicotine content.
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公开(公告)号：US10585055B2
公开(公告)日：2020-03-10
申请号：US15916356
申请日：2018-03-09
发明人： Holger Glasmachers
摘要： A method for operating an inductive conductivity meter having a transmitting coil, a receiving coil and a terminating impedance device, the transmitting coil having a transmitting coil terminal, the receiving coil having a receiving coil terminal and the terminating impedance device having a terminating impedance, wherein the receiving coil is terminated with the terminating impedance device and wherein the transmitting coil and the receiving coil are inductively coupled with one another by an electrically conductive medium. To provide an improved accuracy of a determination of a conductivity of a medium a setpoint input impedance is specified, an input impedance is determined at the transmitting coil terminal, the terminating impedance is set such that the input impedance is matched to the setpoint input impedance, and a conductivity of the medium is determined using the adjusted input impedance and the set termination impedance.
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公开(公告)号：US10359453B2
公开(公告)日：2019-07-23
申请号：US15165371
申请日：2016-05-26
申请人： BIRCHTREE, LLC
IPC分类号： G01R19/00 , G01R19/165 , G01R19/155 , G01R19/145 , G01R27/22 , G01R19/10 , F21V23/00 , F21V23/04 , G08B7/06 , G08B21/02 , G01R27/14 , G01R27/08 , F21L4/00 , F21W131/109 , F21Y115/10
摘要： A shock detector having an electrical detector having a set of water immersible electrodes for detecting hazardous water conditions through the determination of the presence of either an electrical current in a body of water, a voltage in the body of water or a voltage gradient in the body of water and then providing an alert to the existence of hazardous electrical conditions in the body of water which in some cases is transmitted to a power source to shut off a power source thereby removing the hazardous water condition.
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公开(公告)号：US20190212285A1
公开(公告)日：2019-07-11
申请号：US16328883
申请日：2017-08-09
发明人： Jung-Chih CHIAO
CPC分类号： G01N27/025 , A61B5/0028 , A61B5/024 , A61B5/05 , A61B5/055 , A61B5/145 , B07C5/344 , G01N24/087 , G01N29/022 , G01N29/036 , G01N33/04 , G01N33/14 , G01N33/491 , G01R27/22 , G01R33/34015
摘要： Embodiments of the present disclosure provide an interrogation device that is operable to apply one or more source signals to one or more coils surrounding a volume, where a material is disposed within the volume. Each of the one or more source signals may excite one of the one or more coils, and the behavior of each the one or more coils responsive to the exciting may be monitored. One or more parameters may be determined based on the behavior of each the one or more coils, and the one or more parameters may be utilized to generate a signature for the material within the volume. The signature may be compared to one or more signatures of known materials to identify the material within the volume.
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公开(公告)号：US20180188211A1
公开(公告)日：2018-07-05
申请号：US15797074
申请日：2017-10-30
发明人： Jung-Chih CHIAO
IPC分类号： G01N29/036 , G01R27/22 , G01N27/02 , G01R33/34
CPC分类号： G01N27/025 , A61B5/0028 , A61B5/024 , A61B5/05 , A61B5/055 , A61B5/145 , B07C5/344 , G01N24/087 , G01N29/022 , G01N29/036 , G01N33/04 , G01N33/14 , G01N33/491 , G01R27/22 , G01R33/34015
摘要： Embodiments of the present disclosure provide an interrogation device that is operable to apply one or more source signals to one or more coils surrounding a volume, where a material is disposed within the volume. Each of the one or more source signals may excite one of the one or more coils, and the behavior of each the one or more coils responsive to the exciting may be monitored. One or more parameters may be determined based on the behavior of each the one or more coils, and the one or more parameters may be utilized to generate a signature for the material within the volume. The signature may be compared to one or more signatures of known materials to identify the material within the volume.
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