公开(公告)号：US12066311B2

公开(公告)日：2024-08-20

申请号：US17456946

申请日：2021-11-30

Applicant: Roche Molecular Systems, Inc.

Inventor： Sven Ebert ,  Michal Karol Dobrzynski ,  Paul Federer ,  Arnulf Staib ,  Lukas Schneider

IPC: G01F1/58 ,  G01F1/64

CPC classification number: G01F1/584 ,  G01F1/58 ,  G01F1/64

Abstract: The present disclosure provides for a sensor system for determining a flow rate of a fluid flow within a fluid channel comprising an elastic segment arranged next to a rigid segment, wherein a first pair of electrodes is provided at the rigid segment and a second pair of electrodes is provided at the elastic segment of the fluid channel. The system further comprises a sensor unit for detecting a capacitance of the first and second electrode pairs, and a processing unit for calculating and monitoring a distance between the electrodes of the second electrode pair based on the detected capacitance of the first electrode pair and the second electrode pair, wherein the first electrode pair is in contact with the rigid segment and the second electrode pair is in contact with the elastic segment. Moreover, a respective method for determining a flow rate of a fluid flow within a fluid channel is provided by the present disclosure, as well as a use of the sensor system.

公开(公告)号：US20220326104A1

公开(公告)日：2022-10-13

申请号：US17716260

申请日：2022-04-08

Applicant: Hutchinson

Inventor： Brice GABRIELLE ,  Thierry BENARD

IPC: G01L9/00 ,  G01F1/64

Abstract: A pressure sensor (10) for a fluid circuit, in particular, of a motor vehicle, the sensor comprising: a body (12) comprising a fluid inlet (14), a fluid outlet (16) and an internal chamber (18) for connecting the inlet to the fluid outlet for the fluid flow in said body, an elastically deformable membrane (20) located in said chamber and comprising a first face (20a) intended to be in contact with the fluid flowing in the body, characterised in that it further comprises: a resonant circuit (22) of the RLC type located in said chamber and associated with a readout circuit (23) located outside the chamber (18).

公开(公告)号：US11333538B2

公开(公告)日：2022-05-17

申请号：US16855147

申请日：2020-04-22

Applicant: Saudi Arabian Oil Company

Inventor： Sakethraman Mahalingam ,  Muhammad Arsalan

IPC: G01F1/84 ,  G01F1/58 ,  G01F1/60 ,  G01F1/64 ,  G01N9/00

Abstract: An example system is configured for determining properties of a fluid in a conduit. The system includes a mass flow meter including a hollow conduit having an inlet, an outlet, and a wall. The conduit is for conducting the fluid. The system includes a driver coupled to the conduit. The driver is configured for inducing an oscillation in the conduit. The system includes two or more accelerometers coupled to the conduit. The two or more accelerometers are configured for measuring displacement of the conduit. The system includes an electrical permittivity sensor coupled to the conduit. The electrical permittivity sensor is configured for measuring electrical permittivity of the fluid.

公开(公告)号：US20210285688A1

公开(公告)日：2021-09-16

申请号：US17181283

申请日：2021-02-22

Applicant: Heatworks Technologies, Inc.

Inventor： Jeremiah M. Callahan ,  Michael J. Wieckowski

IPC: F24H9/18 ,  H05B3/00 ,  F24H1/10 ,  G01N27/08 ,  G01F1/64 ,  G01F1/684

Abstract: A flowmeter for measuring flow of a conductive liquid includes a structure (20, 220) defining a flow path, electrodes in the flow path and electrodes (34a, 34b, 234a, 234b) exposed within the flow path. An electrical circuit (40, 240) applies a voltage between the electrodes so that an electrical current flows along a conduction path between the electrodes within a liquid flowing in the flow path. Means such as temperature sensors (56, 58, 256, 258) are provided for determining a value representing a temperature rise in the liquid passing through a sensing region of the flow path which encompasses at least a part of the. A monitoring circuit (60, 207) determines a value representing the flow rate based on the value representing the temperature, rise the voltage and the current. The flowmeter may be incorporated in an ohmic heater and elements of the ohmic heater may serve as elements of the flowmeter.

公开(公告)号：US20210127625A1

公开(公告)日：2021-05-06

申请号：US16639547

申请日：2018-08-02

Applicant: LACTOCORDER AG

Inventor： Tilman HOEFELMAYR

IPC: A01J5/04 ,  G01N1/20 ,  G01F1/64 ,  G01F1/66 ,  A01J5/01 ,  A01J5/013

Abstract: In one aspect, the invention provides a sampling apparatus for taking a representative milk sample in a predetermined quantity range from a conveying line in which milk is conveyed at conveying intervals of unknown length. The sampling apparatus comprises a pump, a controller of the pump, and a sample container connecting element connecting member in communication with the pump, wherein the controller is configured based on the predetermined quantity range and a measured quantity indicating a flow rate of the milk conveyed in the conveying line and/or a predetermined quantity indicating a total quantity of milk to be conveyed through the conveying line in a conveying interval, to controlling a pulsed operation of the pump in a conveying interval, wherein the pump conveys a discrete sample subset along a first conveying direction of the pump during the pulsed operation in each sample pulse interval, and wherein the predetermined quantity range is greater than or equal to a total quantity corresponding to a total number of discrete sample subsets in the conveying interval.

公开(公告)号：US20200378978A1

公开(公告)日：2020-12-03

申请号：US16925923

申请日：2020-07-10

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Donald E. INGBER ,  Olivier Y.F. HENRY ,  Michael SUPER

IPC: G01N33/58 ,  G01F1/64 ,  G01N33/543 ,  C12Q1/68 ,  C12Q1/6816 ,  G01N33/535

Abstract: The invention described herein relates generally to methods, sensors, devices and kits for electrochemical detection of a target analyte in a sample. In certain aspects, the methods, sensors, devices and kits described herein can be used to detect low concentrations of at least one target analyte using small sample volumes. In some embodiments, methods, sensors and kits for detecting a microbe, microbe fragment or released endotoxin in a test sample, including bodily fluids such as blood and tissues of a subject, food, water, and environmental surfaces, are also provided herein.

公开(公告)号：US10746685B2

公开(公告)日：2020-08-18

申请号：US16449934

申请日：2019-06-24

Applicant: Tech4Imaging LLC

Inventor： Qussai Marashdeh ,  Benjamin Straiton ,  Christopher Zuccarelli

IPC: G01N27/22 ,  G01F1/64 ,  G06T11/00 ,  A61B5/05

Abstract: A system and method for imaging, monitoring, or measuring systems and processes utilizing only data provided from capacitance sensors. The present invention combines the multi-frequency method of both ECVT/AECVT and DCPT to image or measure processes and systems more efficiently and accurately than the methods alone. The present system analyzes capacitance and current phase acquired at multiple frequencies to determine a plurality of properties of single and multiphase systems all at once. The combined use of ECVT and DCPT in multiphase flow can also be extended to measure volume fraction and phase distribution of flows involving greater than three phases by using multiple frequencies for capacitance, current phase, or both.

公开(公告)号：US20200225069A1

公开(公告)日：2020-07-16

申请号：US16248953

申请日：2019-01-16

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： James J. Blagrave ,  Brian J. Smith

IPC: G01F1/64 ,  G01F23/24

Abstract: A fluid sensing system includes a sensing element having a positive temperature coefficient of resistance. The system also includes a switch which is switchable between an open position which prevents current from passing and a closed position which permits current to pass. An inductor is connected electrically in series between the switch electric output and the sensing element and a diode is connected electrically in series between the sensing element and the inductor such that an output of the diode is between the switch and the inductor. A hysteretic controller changes the switch from the open position to the closed position when current passing to the sensing element falls to a lower current threshold and changes the switch from the closed position to the open position when current passing to the sensing element rises to an upper current threshold. A voltmeter measures voltage across the sensing element.

公开(公告)号：US10451464B1

公开(公告)日：2019-10-22

申请号：US16354370

申请日：2019-03-15

Applicant: Electronics Inc.

Inventor： Jack M. Champaigne ,  Mark A. Ingram

IPC: G01F1/74 ,  G01F1/64 ,  G01N15/10 ,  G01F1/78 ,  F16K27/04 ,  F16K31/08 ,  F16K31/10 ,  F16K1/12 ,  A01C7/10

Abstract: A flow sensor for use downstream from a particulate media dispensing device is provided having an inlet to receive particulate media and an outlet to dispense the media. The flow sensor has an inlet portion with a funnel to direct particulate media towards a central axis. An axially mounted flow director is located downstream from the funnel to direct the media outwards towards a sensor portion. A capacitive sensor located in the sensor portion surrounds the flow director to create an annular flow path to measure the amount of media that passes through sensor rings in the sensor.

公开(公告)号：US10269171B2

公开(公告)日：2019-04-23

申请号：US14191574

申请日：2014-02-27

Applicant: Tech4Imaging LLC

Inventor： Qussai Marashdeh ,  Geoffrey Legg ,  David Matthews ,  Mohd Harish

IPC: G01R25/00 ,  G01R27/00 ,  G01D18/00 ,  G01D21/00 ,  G01P21/00 ,  G06T15/08 ,  G01N27/24 ,  G01F1/64 ,  G01F1/704 ,  G01N21/27 ,  G01R35/00 ,  G06F17/50 ,  G01R27/02 ,  A61B5/05

Abstract: A control system and data acquisition system for an electrical capacitance tomography sensor comprised of a sensor having a plurality of electrodes, where each electrode is further comprised of a plurality of capacitance segments. Each of the capacitance segments of each electrode can be individually addressed to focus the electric field intensity or sensitivity to desired regions of the electrodes and the sensor.