摘要:
An ultrasonic measuring device for measuring properties of a medium located in a measuring tube includes a measuring tube wall and a measuring tube lumen. The measuring tube wall has at least one acoustic region designed to be excited into Lamb oscillations. A pair of ultrasonic transducers are located in a coupling region and are designed to excite Lamb oscillations or to detect Lamb oscillations in the respective coupling regions. The device also includes an electronic measuring/operating circuit. A supporting device is designed to support at least parts of the acoustic region against media pressure, and at least one supporting member is designed to absorb forces generated by media pressure. The supporting member has at least one decoupling device which is designed to reduce ultrasonic input from at least one associated acoustic region into the supporting member, and vice versa.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
An ultrasonic transducer for an ultrasonic flow measuring device, comprising an electromechanical transducer element, which is prestressed against an ultrasonic window of the ultrasonic transducer by a suitable structure, wherein a first surface of the electromechanical transducer element faces the ultrasonic window, and wherein a second surface of the electromechanical transducer element lying opposite the first surface is divided into a plurality of segments, which are galvanically connected with the suitable structure for prestressing.
摘要:
An ultrasonic transducer for an ultrasonic flow measuring device, comprising a first housing part and a second housing part. The second housing part is axially guided in the first housing part and is so biased relative to the first housing part that, in a first state of the ultrasonic transducer, a first axial stop of the second housing part rests on a first axial stop of the first housing part, wherein, by applying, counter to the bias, a predetermined force on a second axial stop of the second housing part, the second housing part is axially shiftable, so that, in a second state of the ultrasonic transducer, the first axial stop of the second housing part is moved out of the first state.
摘要:
The invention relates to an ultrasonic transducer with a housing, in which a transducer element for producing and detecting ultrasonic signals and an acoustic transformer are arranged, wherein the acoustic transformer is acoustically and mechanically coupled with the transducer element. The housing includes at least one housing body, which has at least one housing chamber with a housing wall, which housing wall at least partially surrounds the acoustic transformer, wherein the housing is acoustically and mechanically connected with a measuring tube wall or a container wall and wherein the acoustic transformer is connected or connectable mechanically with the housing via a lateral surface of the acoustic transformer by means of a first acoustic insulation, especially an annular first acoustic insulation.
摘要:
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.