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公开(公告)号：US20180216978A1
公开(公告)日：2018-08-02
申请号：US15747560
申请日：2016-07-28
申请人： SENTEC LTD
摘要： An electromagnetic flow sensor for an electromagnetic flow meter (201) is disclosed. The sensor comprises a body (204) or frame, a flow passage (252) through the body or frame, a part of a magnetic circuit (248, 295) supported by the body or frame for applying a magnetic field across the flow passage, and at least first and second electrodes (298) supported by the body or frame, the at least first and second electrodes arranged to sense a voltage in response to a conductive fluid flowing through the flow passage. At least a portion of the body supporting the magnetic circuit part and the at least first and second electrodes is configured to be insertable into a flow tube (206) through a single aperture in the flow tube.
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2.发明申请公开(公告)号：US20160084886A1
公开(公告)日：2016-03-24
申请号：US14891634
申请日：2014-05-15
申请人： SENTEC LTD
发明人： Andrew Dames , Robert Davidson , Edward Colby
IPC分类号： G01R15/14
CPC分类号： G01R15/14 , G01R1/203 , G01R15/207 , G01R19/0092 , G01R21/06 , G01R22/065
摘要： An electricity meter comprises a conductor having a substantially planar surface; and a carrier for carrying a sensor component for enabling detection of current flowing in the conductor, wherein the carrier is spaced from the planar surface of the conductor by an arrangement of at least three spacing elements. The spacing elements may project from the carrier or from the substantially planar surface of the conductor.
摘要翻译： 电表包括具有基本平坦表面的导体; 以及载体，用于承载用于能够检测在导体中流动的电流的传感器部件，其中载体通过至少三个间隔元件的布置与导体的平坦表面间隔开。 间隔元件可以从载体或从导体的基本平坦的表面突出。
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公开(公告)号：US20220357189A1
公开(公告)日：2022-11-10
申请号：US17636961
申请日：2020-08-07
申请人： SENTEC LTD , SENSUS SPECTRUM LLC
发明人： Michael Cantor , Andrew Dames , Matthew Price , Paul Dunaway , Mike Zimmerman , James Evett
摘要： An electrode assembly for an electromagnetic flow meter (1; FIG. 1) is disclosed. The electrode assembly comprises a housing, which may be a flow tube (2; FIG. 1) of the electromagnetic flow meter, having a passage (123) between first and second ends (1241, 1242), an electrode (125) comprising a plug of porous material, for example formed of porous graphite, at least partially disposed within the passage proximate the first end, and an electrically-conductive polymer connector (125) at least partially disposed within the passage and in direct contact with the electrode.
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公开(公告)号：US20220091167A1
公开(公告)日：2022-03-24
申请号：US17426384
申请日：2020-01-28
申请人： SENTEC LTD
发明人： Andrew Dames , Joseph Adam , Jason Morgan
IPC分类号： G01R21/133 , G01R21/06
摘要： An electricity meter includes a converter configured to synchronously modulate current and voltage measurement signals and output synchronously-modulated current and voltage measurement signals and also includes a measurement module configured to receive the synchronously-modulated current and voltage measurement signals from the converter and to process the synchronously-modulated current and voltage measurement signals
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公开(公告)号：US10072596B2
公开(公告)日：2018-09-11
申请号：US15036631
申请日：2014-11-17
申请人： SENTEC LTD
发明人： Andrew Dames , Hilary Meanwell , Jerome Dilley , James Evett , Christian Wehrenfennig , Alice Burrell
CPC分类号： F02D41/20 , F02D41/40 , F02D2041/2003 , F02D2041/2027 , F02D2041/2037 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/061 , F02M2200/50 , Y02T10/44
摘要： A control unit (2) for a fuel injector (3) comprising a solenoid actuator (31) having an armature (33), the control unit configured to drive a current through an electromagnet coil (34) of the solenoid actuator in a voltage mode during at least a portion of an injection cycle.
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公开(公告)号：US09494620B2
公开(公告)日：2016-11-15
申请号：US14364219
申请日：2012-12-21
申请人： Sentec Ltd
CPC分类号： G01R15/181 , G01R3/00 , G01R19/0084 , G01R19/0092 , G01R27/14 , G01R27/16 , G01R31/025 , Y10T29/4902
摘要： A flexible current sensor arrangement comprises a plurality of discrete current sensing elements distributed along an elongate flexible carrier. An elongate flexible member for a current sensor arrangement comprises a plurality of carrying portions linked to one another by hinge portions, each carrying portion being configured for receiving a discrete current sensing element. A method of manufacturing a flexible current sensor arrangement comprises providing an elongate flexible carrier, and distributing a plurality of discrete sensing elements along the elongate flexible carrier.
摘要翻译： 灵活的电流传感器装置包括沿着细长的柔性载体分布的多个离散的电流感测元件。 用于电流传感器装置的细长柔性构件包括通过铰链部分彼此连接的多个承载部分，每个承载部分构造成用于接收离散的电流感测元件。 制造柔性电流传感器装置的方法包括提供细长的柔性载体，以及沿着细长柔性载体分布多个离散的感测元件。
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公开(公告)号：US11784011B2
公开(公告)日：2023-10-10
申请号：US17505871
申请日：2021-10-20
申请人： Sentec Ltd.
CPC分类号： H01H3/26 , G01R11/24 , H01H3/42 , H01H3/46 , H01H2003/326
摘要： An electricity meter comprising an electrically-controlled electromechanical switch is disclosed. The electromechanical switch comprises a rotary actuator comprising a generally-cylindrical permanent magnet rotor having a central axis, a stator comprising a closed stator core and first and second opposite stator poles inwardly-projecting from the closed stator core towards the rotor and first and second coils wound around the first and second stator poles respectively. The electromechanical switch comprises a switch comprising at least one pair of first and second contacts wherein the first contact is movable. The electromechanical switch comprises mechanical linkage between the rotary actuator and the movable contact(s) configured such that rotation of the rotor from a first angular position to a second angular position causes the switch to be opened, and rotation from the second angular position to the first angular position causes the switch to be closed.
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公开(公告)号：US11650087B2
公开(公告)日：2023-05-16
申请号：US17054311
申请日：2019-03-13
申请人： SENTEC LTD
发明人： Ben Davey , Charlie Paterson
摘要： An ultrasonic meter (28) for measuring a flow-rate of a fluid is described. The ultrasonic meter (28) includes a flow conduit (5) for the fluid. The flow conduit (5) extends along a first axis (6) between a first opening (7) and a second opening (8). The ultrasonic meter (28) also includes one or more pairs of ultrasonic transducers (2, 3). Each pair of ultrasonic transducers (2, 3) is configured to define a corresponding beam path (9) intersecting the flow conduit (5) within a measurement region (12) of the flow conduit (5). The measurement region (12) spans between a first position (z1) and a second position (z2) spaced apart along the first axis (6). One or more portions of the measurement region (12) which are outside of any of the one or more beam paths (9) correspond to non-sampled volumes (12b). The ultrasonic meter (28) also includes one or more protrusions (34) extending along the first axis (6). At least part of each protrusion (34) is arranged to exclude fluid from at least part of one or more non-sampled volumes (12b).
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公开(公告)号：US20220246367A1
公开(公告)日：2022-08-04
申请号：US17505871
申请日：2021-10-20
申请人： Sentec Ltd.
摘要： An electricity meter comprising an electrically-controlled electromechanical switch is disclosed. The electromechanical switch comprises a rotary actuator comprising a generally-cylindrical permanent magnet rotor having a central axis, a stator comprising a closed stator core and first and second opposite stator poles inwardly-projecting from the closed stator core towards the rotor and first and second coils wound around the first and second stator poles respectively. The electromechanical switch comprises a switch comprising at least one pair of first and second contacts wherein the first contact is movable. The electromechanical switch comprises mechanical linkage between the rotary actuator and the movable contact(s) configured such that rotation of the rotor from a first angular position to a second angular position causes the switch to be opened, and rotation from the second angular position to the first angular position causes the switch to be closed.
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公开(公告)号：US20220018878A1
公开(公告)日：2022-01-20
申请号：US17295111
申请日：2019-11-19
申请人： SENTEC LTD
发明人： Andrew Dames , Mark England , Joseph Adam
IPC分类号： G01R15/18 , G01R19/252
摘要： Mutual inductance-type current sensing apparatus (1) is described which includes a mutual inductance current sensor (11) having a first transfer function. The apparatus (1) also includes a low-pass filter (12) which receives a signal from the current sensor (11). The low-pass filter (12) has a second transfer function configured to attenuate one or more harmonic components of the signal. The apparatus (1) also includes an analogue-to-digital converter (13) which receives and digitises a filtered signal output from the low-pass filter. The apparatus (1) also includes a controller (8) configured to process a digitised signal from the analogue-to-digital converter (13) using a digital processing chain configured to compensate for the frequency and phase responses of the first transfer function and the second transfer function.
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