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公开(公告)号：US10598534B2
公开(公告)日：2020-03-24
申请号：US15102626
申请日：2014-11-03
Applicant: Endress + Hauser Flowtec AG
Inventor： Christof Huber , Vivek Kumar , Philipp Montsko , Tobias Schwer
Abstract: The density measuring device serves for measuring density, ρ, of a flowable medium and comprises a measuring device electronics (ME) as well as a measuring transducer (MT) electrically connected therewith. The measuring transducer includes a measuring tube (10), an oscillation exciter (41) for exciting and maintaining oscillations and an oscillation sensor (51) for registering oscillations of the at least one measuring tube. The measuring device electronics is adapted by means of an oscillation measurement signal (s1) as well as an exciter signal (e1) to adjust a drive force effecting wanted oscillations (namely oscillations with a predetermined wanted frequency, fN) of the measuring tube. The drive force is adjusted in such a manner that during a predetermined phase control interval a phase shift angle, φN, by which a velocity response, VN, of the measuring tube Is phase shifted relative to a wanted force component, FN, of the drive force, is less than −20° and greater than −80°, and/or the wanted frequency has a frequency value, which corresponds to greater than 1.00001 times, equally as well less than 1.001 times, a frequency value of an instantaneous resonant frequency of the measuring tube. Moreover, the measuring device electronics is adapted based on the oscillation measurement signal (s1) present during the phase control interval to ascertain at least one frequency measured value, Xf, which represents the wanted frequency for the phase control interval, as well as also with application of the frequency measured value, Xf, to generate a density measured value, Xρ, representing a density, ρ.
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公开(公告)号：US10591361B2
公开(公告)日：2020-03-17
申请号：US15501003
申请日：2015-07-16
Applicant: Endress + Hauser Flowtec AG
Inventor： Rainer Hocker , Oliver Popp
Abstract: An apparatus for early warning against condensation induced hydraulic shock in a pipe, conveying a fluid present at least in a first part in the vapor phase and, in the case of condensate formation, in a second part in the form of a condensate, comprising at least two temperature sensors, which are arranged in the pipe and, thus, are fluid contacting, and at least one electronics unit, wherein the first temperature sensor is so arranged that it measures the temperature of the vapor, wherein the second temperature sensor is so arranged that it measures the temperature of the condensate, wherein the at least one electronics unit is so embodied that it ascertains the temperature difference between the temperature of the vapor and the temperature of the condensate, and, upon reaching a predetermined limit value for the temperature difference, generates a report.
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公开(公告)号：US10591328B2
公开(公告)日：2020-03-17
申请号：US15521393
申请日：2015-09-25
Applicant: Endress + Hauser Flowtec AG
Inventor： Oliver Berberig , Andreas Berger , Michal Bezdek , Pierre Ueberschlag
IPC: G10K11/00 , G01F1/66 , G01F23/296 , G01F15/18
Abstract: An arrangement for transmitting and/or receiving an ultrasonic, wanted signal in a measured medium, comprising a vibration decoupling element for securing at least one ultrasonic transducer in a containment, characterized in that the vibration decoupling element has a platform for securing the vibration decoupling element to a sensor nozzle or to the containment and a second interface for securing an ultrasonic transducer. Between the second interface and the platform a vibration decoupling structural element is arranged, which structural element is embodied as a solid body, which has one or more interfaces with other elements of the vibration decoupling element, especially with the second interface for securing the ultrasonic transducer and/or the platform, and wherein the structural element (11, 39, 55, 75) has an as much as possible spherical-, ellipsoidal-, toroidal- or polyhedral shape.
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公开(公告)号：US10436692B2
公开(公告)日：2019-10-08
申请号：US15535459
申请日：2015-11-18
Applicant: Endress + Hauser Flowtec AG
Inventor： Christof Huber , Ton Leenhoven
Abstract: An arrangement for measuring density of flowable media includes: a fluid path for conveying a medium; a pump for driving a defined volume flow of the medium in the fluid path; a pressure difference measuring arrangement for registering a pressure drop due to the volume flow of the medium between first and second pressure taps in the fluid path; a densimeter having at least one oscillator, which has at least one oscillatable measuring tube for conveying the medium, at least one exciter mechanism for exciting oscillations of the measuring tube, and at least one sensor arrangement for registering at least one oscillatory characteristic of the oscillator. The at least one measuring tube is arranged in the fluid path. An evaluation apparatus ascertains the density of the medium based on the volume flow, the volume flow dependent pressure drop and the at least one oscillatory characteristic of the oscillator.
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75.发明授权公开(公告)号：US10379145B2
公开(公告)日：2019-08-13
申请号：US14906184
申请日：2014-07-07
Applicant: Endress + Hauser Flowtec AG
Inventor： Antoine Simon , Martin Jenzer
IPC: G01R19/165 , G05B19/042
Abstract: A measuring device having a configurable measuring and operating electronics for delivering a measurement signal, includes a measurement transmitter with an electrical current control circuit for outputting a controlled electrical current, wherein in a first manner of operation an electrical current is set in a first range, and in a second manner of operation an electrical current is set in a second range having a greater interval than the first range; the measuring device further having a microcontroller circuit is connected with the electrical current control circuit for delivering a digital signal for operating the electrical current control circuit, wherein the digital signal has a LOW state and a HIGH state and wherein by operating the electrical current control circuit an output current can be set with an electrical current level in a first interval for the LOW state and in a second interval for the HIGH state.
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Patent Agency Ranking
公开(公告)号：US10378939B2
公开(公告)日：2019-08-13
申请号：US15544564
申请日：2015-12-07
Applicant: Endress+Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger
Abstract: The present disclosure relates to a method for manufacturing an ultrasonic transducer by exciting the sound wave via an electromechanical transducer disposed on a sensor body, determining a current propagation velocity of the sound wave on an exit surface of the sensor body, determining the difference between the current propagation velocity and the desired propagation velocity of the sound wave on the exit surface, determining difference between speed of sound in the sensor body and a desired speed of sound, removing material in the region of the exit surface of the sensor body, wherein the remaining material is dimensioned such that the current propagation speed of the sound wave on the exit surface of the sensor body, and/or the delay caused by the speed of sound in the sensor body, at least approximately agrees with the desired propagation speed of the sound wave on the exit surface.
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公开(公告)号：US10371553B2
公开(公告)日：2019-08-06
申请号：US15125315
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Alfred Rieder , Hao Zhu , Ennio Bitto , Gerhard Eckert , Josef Hubensteiner , Michael Wiesmann , Yaoing Lin
Abstract: transducer apparatus comprises a transducer housing, a tube, a temperature sensor as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. Furthermore, the tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen. Each of the temperature sensors is formed by means of a temperature detector arranged within the intermediate space as well as by means of a coupling body coupling the respective temperature detector thermally conductively with the wall of the tube and is additionally adapted to register a particular measurement location temperature, and to transduce such into a corresponding temperature measurement signal, namely an electrical measurement signal representing the particular measurement location temperature.
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78.发明授权公开(公告)号：US10305212B2
公开(公告)日：2019-05-28
申请号：US15031001
申请日：2014-09-10
Applicant: Endress + Hauser Flowtec AG
Inventor： Bjorn Larsson , Timo Kretzler , Alfred Umkehrer , Michael Kirst
IPC: H01R13/62 , H01R24/00 , H01H9/02 , H01R13/11 , H01R13/447 , H01R13/52 , H01R13/639 , G08C19/00 , H01R43/26 , H01R105/00 , G01R1/04 , H01R13/533 , H01R24/30
Abstract: A connection apparatus comprises a platform, a plug connector having a plug connector part secured to the platform and electrically connected to the circuit of the field device and a plug connector part connectable with the connection cable and complementary to the first plug connector part, as well as a lid held movably relative to the platform for at least partially covering the plug connector formed by connecting the plug connector parts. The lid is swingable between a first end position, in which the lid at least partially covers the plug connector, and a second end position, and is additionally adapted in at least one open position located between the first end position and the second end position to expose the plug connector such that the plug connector part can be separated from the plug connector part, as well as at least in the first end position to secure the plug connector part connected with the plug connector part.
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公开(公告)号：US10283102B2
公开(公告)日：2019-05-07
申请号：US15127471
申请日：2015-02-23
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger
Abstract: An ultrasonic transducer comprising a coupling element and a piezo element, wherein a metal disk is arranged between the coupling element and the piezo element, wherein the metal disk is connected with the piezo element or with the coupling element by means of an adhesive layer, characterized in that the adhesive layer is producible, at least in certain regions, by means of a photochemically curable adhesive.
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公开(公告)号：US10199028B2
公开(公告)日：2019-02-05
申请号：US14893105
申请日：2014-04-25
Applicant: Endress + Hauser Flowtec AG
Inventor： Pierre Ueberschlag , Michal Bezdek , Andreas Berger
Abstract: Disclosed is an ultrasonic transducer mounting assembly comprising an ultrasonic transducer element, a transducer housing inside which the ultrasonic transducer element is arranged, and an accommodation unit inside which the transducer housing is clamped in a clamping section. The disclosed assembly is characterized in that the clamping section comprises at least one bearing that has at least one rolling element, in particular at least one ball bearing that has at least one ball, for acoustically decoupling the transducer housing from the accommodation unit.
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