| Patent application number | Description | Published |
|---|
| 20090095088 | Device for Determining and/or Monitoring a Volume Flow and/or a Mass Flow - An apparatus for ascertaining and/or monitoring volume- and/or mass-flow of a measured medium flowing in a flow direction through a measuring tube of predetermined inner diameter. The apparatus includes a plurality of ultrasonic sensors, which transmit and/or receive ultrasonic measuring signals along different, defined measuring paths, and a control/evaluation unit, which ascertains volume- and/or mass-flow of the measured medium in a pipeline/in the measuring tube on the basis of the ultrasonic measuring signals according to a sound entrainment method or the echo principle. At least two ultrasonic sensors, which transmit and/or receive the ultrasonic measuring signals on different measuring paths, are positioned in an opening located in the wall of the measuring tube. | 04-16-2009 |
| 20090100940 | Apparatus For Determining And/Or Monitoring Volume- And/Or Mass-Flow - An ultrasonic flow measuring device for determining and/or monitoring volume- and/or mass-flow of a measured medium through a pipeline or measuring tube. The wall of the pipeline or measuring tube is provided, in the region of the defined sensor position of the ultrasonic sensor and/or in the region of the sound path of the ultrasonic measuring signals of the at least one ultrasonic sensor, with a deformation or deformations, which is/are embodied and/or arranged in such a manner that the flow velocity of the medium measured in the sound path, or, in the case of plural ultrasonic sensors, the measured and/or the combined flow velocities of the medium in the sound paths correspond/corresponds at least approximately to average flow velocity of the medium averaged over the area of the pipeline or measuring tube. | 04-23-2009 |
| 20090211347 | Method and Apparatus for Ascertaining and/or Monitoring a Process Variable - A method for ascertaining and/or monitoring a process variable, wherein a time-limited, exciting signal, which is described by at least one desired quantity, or by a desired signal form, is applied to a first piezoelectric element, or to a first polarized zone of a piezoelectric element. The response signal, which is described by at least one actual quantity, or actual signal form, corresponding, respectively, to the desired quantity, or desired signal form, is registered by a second piezoelectric element, or by a second polarized zone of the piezoelectric element, wherein the actual quantity, or the actual signal form, of the response signal and the desired quantity, or the designed signal form, of the response signal are compared with one another, wherein, in the case of a deviation of the actual quantity, or actual signal form, of the response signal from the desired quantity, or desired signal form, of the response signal, the exciting signal is so modified, that the actual quantity, or actual signal form, transmitted from the first piezoelectric element, or from the first zone of the piezoelectric element, is at least approximately equal to the desired quantity, or desired signal form, of the response signal. On the basis of the ultrasonic measuring signal, which is describable by the defined desired quantity, or the defined, desired signal form, the process variable is ascertained via a sound-entrainment method or via an echo method. | 08-27-2009 |
| 20100024570 | Device for Determining or Monitoring a Medium Volume or Mass Flow Rate in a Conduit - An ultrasonic, flow measuring device having a plurality of measuring channels. At least one ultrasonic sensor is situated in a first region of a pipeline, or measuring tube; at least two ultrasonic sensors are situated in a second region of the pipeline ( | 02-04-2010 |
| 20100187392 | APPARATUS FOR SECURING A MEASURING OR DISPLAY UNIT ON AN OBJECT - An apparatus for securing a measuring or display unit on an object. Included is elongated guide element, on which an orientation aid and a holder for the measuring unit or for the display unit are arranged shiftably in the longitudinal direction of the guide element, wherein the orientation aid and the holder are so positionable relative to one another, that the object is held clamped between the orientation aid and the holder or a mounted sensor, and wherein a resilient tensioning apparatus is provided, with which the measuring or display unit is pressable with a defined clamping force onto the object. | 07-29-2010 |
| 20100257940 | ULTRASONIC TRANSDUCER FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE - An ultrasonic transducer for determining and/or monitoring flow of a measured medium through a measuring tube, which includes at least one piezoelectric element, at least one coupling element and at least one adapting, or matching, layer between the piezoelectric element and coupling element. The adapting, or matching, layer has a thickness smaller than a fourth of an uneven integer multiple of a wavelength of an ultrasonic signal being used. | 10-14-2010 |
| 20110023623 | Device for Determining and/or Monitoring the Volume or Mass Flow Rate of a Medium in a Pipe Conduit - An apparatus for ascertaining, and/or monitoring, volume- or mass-flow of a medium flowing through a pipeline in the direction of the longitudinal axis of the pipeline. The apparatus includes: at least one ultrasonic sensor, which radiates/receives ultrasonic measuring signals at an angle of incidence/emergence into/out-of the pipeline; and a control/evaluation unit which provides, based on the ultrasonic measuring signals, information concerning volume- and/or mass-flow of the medium through the pipeline. The ultrasonic sensor includes at least one sound-producing element, a coupling shoe and a coupling adapter. The end region of the coupling adapter facing the coupling shoe has a securement mechanism for releasable securement of the coupling adapter to the coupling shoe. The end region of the coupling adapter facing the pipeline is embodied as a function of the pipeline in such a manner that it is form-fittingly securable to the pipeline. | 02-03-2011 |
| 20110094309 | METHOD AND MEASURING SYSTEM FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM IN A MEASURING TUBE - Measuring system and method for determining and/or monitoring flow of a measured medium through a measuring tube with a first ultrasonic sensor and at least a second ultrasonic sensor, wherein the first ultrasonic sensor has at least one electromechanical ultrasonic transducer element and is placeable in a first region of the measuring tube, and wherein the second ultrasonic sensor has at least two electromechanical ultrasonic transducer elements and is placeable in a second region of the measuring tube in such a manner, that the ultrasonic signals transmittable through the measured medium from the first ultrasonic sensor are receivable by the second ultrasonic sensor, and that the ultrasonic signals transmittable through the measured medium from the second ultrasonic sensor are receivable by the first ultrasonic sensor, and with at least one control/evaluation unit, which, on the basis of the ultrasonic-measuring signals, or on the basis of measurement data, which are derived from the ultrasonic measuring signals, ascertains the volume flow and/or the mass flow of the measured medium flowing in the measuring tube by means of a travel-time difference method. During a diagnostic phase, ultrasonic signals are transmitted from the first ultrasonic sensor through the measured medium to the second ultrasonic sensor, and at least one process variable is ascertained and/or derived from the received ultrasonic signals for each electromechanical ultrasonic transducer element of the second ultrasonic sensor, and the electromechanical ultrasonic transducer elements of the second ultrasonic sensor which are to be active in a following measuring phase are selected on the basis of the process variable of the received ultrasonic signals. | 04-28-2011 |
| 20110118995 | Coupling element of a sensor of an ultrasonic, flow measuring device - A coupling element of a sensor of an ultrasonic, flow measuring device, which includes at least three rods having, in each case, a first rod end and a second rod end. The rods, in each case, have, on their respective first ends, first end faces, which, in each case, can be acoustically coupled with the sound-emitting and/or sound-receiving area of an ultrasonic transducer element. The respective first end faces of the rods together form a first coupling surface of the coupling element, and the rods, in each case, have, on their respective second ends, second end faces, which form a second coupling surface of the coupling element, wherein the rods, in each case, have a first rod cross section, which is different in shape and/or size from a respective second rod cross section. | 05-19-2011 |
| 20110120231 | ULTRASONIC SENSOR OF A MEASURING SYSTEM FOR DETERMINING AND/OR MONITORING FLOW OF A MEASURED MEDIUM THROUGH A MEASURING TUBE - An sensor of a measuring system for determining and/or monitoring the flow of a measured medium through a measuring tube, wherein the ultrasonic sensor is seated in a shiftable manner in a sensor housing parallel to a first inner surface of the sensor housing. The ultrasonic sensor has a coupling element and an electromechanical ultrasound transducer element, wherein the ultrasonic sensor can, at least at times, at least partially, lie against the first inner surface of the sensor housing, and that a guide hanger at least partially lies against a second inner surface of the sensor housing lying opposite the first inner surface, wherein the ultrasonic sensor is seated in a shiftable manner essentially perpendicularly to the first inner surface in the guide hanger, and wherein a spring between the guide hanger and ultrasonic sensor acts essentially perpendicularly to the first inner surface. | 05-26-2011 |
