Patent application number | Description | Published |
20080223149 | Measuring transducer of vibration-Type - The measuring transducer includes: a measuring tube vibrating, at least at times, during operation and serving for conveying a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; a sensor arrangement secured, at least in part, to the counteroscillator for registering oscillations at least of the measuring tube; an exciter mechanism secured, at least in part, to the counteroscillator for driving at least the measuring tube; a transducer housing affixed to the inlet tube piece and the outlet tube piece; and connection lines, especially connection lines for the exciter mechanism and/or for the sensor arrangement, of which connection lines at least one is secured at least sectionally along the counteroscillator and secured at least pointwise thereto, as well as to the transducer housing. The connection lines are routed essentially symmetrically with respect to a principal axis of inertia of the inner part formed by means of measuring tube and counteroscillator, especially mirror-symmetrically with respect to at least one principal axis of inertia of the counteroscillator, whereby an essentially symmetrical damping force per unit length can be assured in the measuring transducer. | 09-18-2008 |
20080223150 | Measuring transducer of vibration-type - A measuring transducer includes: a measuring tube vibrating, at least at times, during operation and serving for conveying a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece on an inlet side and an outlet tube piece on an outlet side; a counteroscillator, which is affixed to the measuring tube on the inlet and outlet sides to form coupling zones; an cantilever coupled with the measuring tube on the inlet side; an cantilever coupled with the measuring tube on the outlet side; a sensor arrangement secured, at least in part, to the counteroscillator for registering oscillations at least of the measuring tube; an exciter mechanism secured, at least in part, to the counteroscillator for driving at least the measuring tube; a transducer housing affixed to the inlet tube piece and to the outlet tube piece; as well as connection lines, of which at least one is secured at least pointwise to the transducer housing and at least pointwise to an inner part of the measuring transducer formed by means of measuring tube, counteroscillator and the two cantilevers. A section at least of the one connection line extends freely suspended between two mutually spaced tie-down points. One of the tie-down points is located on the inner part of the measuring transducer and the other on the transducer housing. The two tie-down points are so placed that a relative distance therebetween remains essentially unchanged, even when the measuring tube is vibrating. | 09-18-2008 |
20080250871 | Measuring transducer of vibration-type - A measuring transducer includes: A measuring tube vibrating, at least at times, during operation and serving for conveying a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a transducer housing affixed to the inlet tube piece and the outlet tube piece. An exciter mechanism, for driving at least the measuring tube, and a sensor arrangement, for registering oscillations at least of the measuring tube, are, in each case, secured, at least in part, to the counteroscillator. Additionally, on the inlet side, an cantilever is so coupled in the region of the coupling zone with the inlet tube piece and the measuring tube, that the center of mass of the cantilever lies in the region of the inlet tube piece, and, on the outlet side, an cantilever is so coupled in the region of the coupling zone with the outlet tube piece and the measuring tube, that the center of mass of the cantilever lies in the region of the outlet tube piece. Furthermore, the measuring transducer includes connection lines, especially connection lines for the exciter mechanism and/or for the sensor arrangement, with at least one of the connection lines being secured to at least one of the two cantilevers. | 10-16-2008 |
20090145244 | Measuring transducer of vibration-type - A measuring transducer includes: a measuring tube vibrating at least at times and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; an exciter mechanism for driving at least the measuring tube; as well as a sensor arrangement for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. Additionally, at least a first spring element and a second spring element are included, with each of the at least two spring elements being affixed to the measuring tube and the counteroscillator spaced both from each of the two coupling zones as well as also from the exciter mechanism. | 06-11-2009 |
20090173169 | Measuring transducer of vibration-type - The measuring transducer includes: a measuring tube vibrating, at least at times, and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; at least one oscillation exciter for driving at least the measuring tube; as well as at least one oscillation sensor for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. The oscillation sensor includes a coil, especially a coil affixed to the counteroscillator, as well as, magnetically coupled with the coil, a permanent magnet, which is placed within a magnet cup composed at least partially of magnetically conductive material and which is held to a cup base, especially a cup base secured to the measuring tube. Additionally, it is provided in the measuring transducer of the invention that a cup wall of the magnet cup, especially an essentially circular-cylindrical and/or tubular, cup wall, especially a cup wall extending essentially in the direction of the counteroscillator, has at least one slit, especially a slit extending at least sectionally in the direction of oscillations of the measuring tube relative to the counteroscillator. | 07-09-2009 |