-
21.发明申请公开(公告)号：US20180003536A1
公开(公告)日：2018-01-04
申请号：US15544564
申请日：2015-12-07
Applicant: Endress+Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger
CPC classification number: G01F1/662 , B06B3/04 , G10K11/004 , G10K11/30 , Y10T29/49005
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.
-
公开(公告)号：US09739652B2
公开(公告)日：2017-08-22
申请号：US14442801
申请日：2013-10-28
Applicant: Endress + Hauser Flowtec AG
Inventor： Axel Pfau , Achim Wiest , Martin Barth
CPC classification number: G01F1/6842 , G01F1/684 , G01F1/69
Abstract: A sensor of a thermal flow measuring device, as well as the flow measuring device itself. The sensor comprises a sensor platform, which bears at least one measuring sensor element and a heated sensor element. Each of the at least two sensor elements is surrounded by a metal sleeve, which protrudes from the sensor platform. The sensor has a plate-shaped element, which defines a plane, whose axis extends parallel to the axis of at least one of the metal sleeves, wherein the plane is spaced from the sensor platform in the axial direction of the metal sleeve. The metal sleeve with the heated sensor element has a terminal end face and the plate-shaped element is provided along the end face of the metal sleeve with the heated sensor element for flow guidance.
-
公开(公告)号：US09689728B2
公开(公告)日：2017-06-27
申请号：US14787505
申请日：2014-04-22
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger
CPC classification number: G01F1/662 , G10K11/004
Abstract: The invention concerns an ultrasonic transducer, comprising a coupling element which has a first recess, the first recess being provided for the arrangement of a piezoelectric element which feeds an ultrasound signal into the coupling element, and there being disposed between the piezoelectric element and the coupling element an intermediate layer which comprises a metal disc, the metal disc comprising retaining elements (a) each with a first segment lying on the same plane as the metal disc and projecting radially from the perimeter of the metal disc and (b) each having a second segment which adjoins the first segment, projects from the plane of the metal plate and is connected to the first segment.
-
公开(公告)号：US11426764B2
公开(公告)日：2022-08-30
申请号：US16615954
申请日：2018-05-09
Applicant: Endress+Hauser Flowtec AG
Inventor： Achim Wiest , Sascha Grunwald , Oliver Brumberg
IPC: G01F1/66 , G01F1/667 , G01F23/296 , G01S7/521 , G01S15/08 , G01S15/58 , G01S15/88 , G10K11/00 , B06B1/06
Abstract: The present disclosure relates to an ultrasound transducer having at least one transducer element for sending or receiving ultrasound signals. The ultrasound transducer includes a matching element acoustically coupled to the transducer element that is designed to ensure acoustic matching between the transducer element and a medium that acts on the matching element. In a first subregion of the axial extent, the matching element partially fills each cross section of the matching element, and a filling component in the first subregion along the first longitudinal axis monotonically increases in the direction of the first side. The matching element has a plurality of ring elements in the first subregion arranged concentrically around the first longitudinal axis. Each ring element partially fills each cross section in the first subregion, wherein the first subregion comprises at least 80% of an axial extent of the matching element along the first longitudinal axis.
-
公开(公告)号：US20220018693A1
公开(公告)日：2022-01-20
申请号：US17413334
申请日：2019-11-21
Applicant: Endress+Hauser Flowtec AG
Inventor： Sascha Grunwald , Oliver Brumberg , Alexander Murray , Andreas Berger , Achim Wiest
IPC: G01F1/66
Abstract: An ultrasonic transducer arrangement for a clamp-on ultrasonic, flow measuring point includes a plurality of ultrasonic transducers, each adapted to radiate ultrasonic signals into the measuring tube and/or to receive ultrasonic signals emerging from the measuring tube, wherein a first group of first ultrasonic transducers is arranged on a first side of the measuring tube, and a second group of second ultrasonic transducer is arranged on a second side of the measuring tube opposite the first side, wherein at least one first/second ultrasonic transducer is adapted to receive ultrasonic signals of at least one second/first ultrasonic transducer, respectively, wherein adjoining ultrasonic transducers of the first group have, in each case, first separations from one another, and wherein adjoining ultrasonic transducers of the second group have, in each case, second separations from one another.
-
Patent Agency Ranking
公开(公告)号：US20200171539A1
公开(公告)日：2020-06-04
申请号：US16615954
申请日：2018-05-09
Applicant: Endress+Hauser Flowtec AG
Inventor： Achim Wiest , Sascha Grunwald , Oliver Brumberg
Abstract: The present disclosure relates to an ultrasound transducer having at least one transducer element for sending or receiving ultrasound signals. The ultrasound transducer includes a matching element acoustically coupled to the transducer element that is designed to ensure acoustic matching between the transducer element and a medium that acts on the matching element. In a first subregion of the axial extent, the matching element partially fills each cross section of the matching element, and a filling component in the first subregion along the first longitudinal axis monotonically increases in the direction of the first side. The matching element has a plurality of ring elements in the first subregion arranged concentrically around the first longitudinal axis. Each ring element partially fills each cross section in the first subregion, wherein the first subregion comprises at least 80% of an axial extent of the matching element along the first longitudinal axis.
-
公开(公告)号：US10461526B2
公开(公告)日：2019-10-29
申请号：US15506794
申请日：2015-08-19
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger , Oliver Brumberg
IPC: H02H9/00 , G08C19/02 , H04Q9/00 , H01L41/113 , H02H9/02 , H02H9/04 , H03H7/38 , G01F1/66 , G01F23/296
Abstract: An apparatus for monitoring at least one physical or chemical process variable, comprising at least one sensor unit and an electronics unit for signal registration, evaluation and/or feeding, wherein the sensor unit is operated with alternating electrical current and/or communication between the electronics unit and the sensor unit occurs with alternating electrical current and/or alternating voltage. An explosion protection circuit with intrinsic safety, which includes a safety barrier, which has at least one unit for electrical current- and/or voltage limiting, is provided within the explosion protection circuit a unit for impedance matching, which unit for impedance matching includes at least one transformer.
-
公开(公告)号：US20180149506A1
公开(公告)日：2018-05-31
申请号：US15579985
申请日：2016-06-14
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Oliver Brumberg
Abstract: An apparatus for monitoring at least one physical or chemical process variable, comprising at least one measurement branch and a compensation branch connected in parallel therewith for compensating the influence of at least one environmental parameter on the process variable and/or on the measuring of the process variable. The measurement branch includes at least one primary sensor unit and a primary electronics unit for signal registration, —evaluation, and/or —feeding. The compensation branch includes at least a secondary sensor unit and a secondary electronics unit. The secondary sensor unit is so embodied that it registers a physical or chemical variable characteristic for the at least one environmental parameter, wherein the secondary electronics unit is so embodied that it draws the required energy from the measurement branch, and that it produces from the characteristic physical or chemical variable a compensation signal, which it transmits to the primary electronics unit of the measuring branch.
-
公开(公告)号：US20170314977A1
公开(公告)日：2017-11-02
申请号：US15528903
申请日：2015-11-03
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Beat Kissling , Quirin Muller , Sascha Grunwald
IPC: G01F1/66
Abstract: A measuring tube, especially a measuring tube for an ultrasonic, flow measuring device, which measuring tube has a measuring tube wall and at least in certain regions a basic form with rotational symmetry or polygonal cross section and a straight measuring tube axis. The measuring tube includes at least one functional area for positioning a reflector, on which an acoustic signal is reflected on a signal path, and the functional area is formed integrally from the measuring tube wall. The functional area defines in at least one sectional view a circular segment, which serves as support for a reflector or the functional areas has stops, whose distal ends define in at least one sectional view a circular segment, which serves as support for a reflector, as well as an ultrasonic, flow measuring device and a method for manufacture of a measuring tube.
-
公开(公告)号：US20170256937A1
公开(公告)日：2017-09-07
申请号：US15506794
申请日：2015-08-19
Applicant: Endress + Hauser Flowtec AG
Inventor： Achim Wiest , Andreas Berger , Oliver Brumberg
CPC classification number: H02H9/008 , G01F1/66 , G01F23/296 , G08C19/02 , H01L41/1132 , H02H9/02 , H02H9/045 , H03H7/38 , H04Q9/00 , H04Q2209/886
Abstract: An apparatus for monitoring at least one physical or chemical process variable, comprising at least one sensor unit and an electronics unit for signal registration, evaluation and/or feeding, wherein the sensor unit is operated with alternating electrical current and/or communication between the electronics unit and the sensor unit occurs with alternating electrical current and/or alternating voltage. An explosion protection circuit with intrinsic safety, which includes a safety barrier, which has at least one unit for electrical current- and/or voltage limiting, is provided within the explosion protection circuit a unit for impedance matching, which unit for impedance matching includes at least one transformer.
-
-
-
-
-
-
-
-
-
Search Results
43
records
(took 0.051 seconds)
