Patent application number | Description | Published |
20080250866 | Method For Monitoring Function of a Magneto-Inductive Flow Transducer - A method for monitoring a function of a magnetically inductive flow measuring sensor having a measuring tube and a magnetic field generator provided with at least two coils. The coils are used in the measuring mode for generating a magnetic field which penetrates the measuring tube. The method makes it possible to specifically monitor generation of the magnetic field, the coils being additionally used for function monitoring purposes. During function monitoring, at least one of the coils is used as a producer which produces a magnetic field that changes over time and penetrates at least one other coil, at least one of the other coils is used as a receiver via which a received signal induced by the magnetic field that changes over time can be derived, and functioning of the flow measuring sensor is monitored based on the received signal. | 10-16-2008 |
20080288933 | Method for start-up and/or reconfiguration of a programmable field-device - An installed hardware of a measuring field device includes at least one transducer reacting during operation to a chemical and/or physical, measured variable of a pourable and/or flowable medium, especially a pourable or flowable bulk good, liquid, gas or the like, as well as a microcomputer communicating during operation with the transducer. The field device is first installed by means of the transducer on, and/or in a process vessel serving for conveying and/or holding pourable and/or flowable media for forming a process measuring point. Thereafter, the microcomputer is booted and a basic software held in a memory provided within the field device for providing, at least in part, basic functionalities of the field device is activated in such a manner that the basic software is executable by means of the microcomputer so that, in the interaction of basic software and hardware installed in the field device, the basic functionalities of the field device are available. Additionally, at least one initial identification parameter set held at least temporarily in the field device and at least approximately identifying the process measuring point is transferred, with application of basic software executed in the microcomputer, to a data processing system superordinated externally of the field device, and at least one upgrade software providing custom functionalities for the field measuring device going beyond the basic functionalities and held in a second memory, is selected from an ensemble of software products, taking into consideration the at least one, initial identification parameter set. A selected upgrade software fitted to the process measuring point is then transferred into a third memory provided within the field measuring device and then activated in such a manner that it is executable by means of the microcomputer, so that, in interaction of upgrade software and hardware installed in the field device, custom functionalities of the field measuring device are available. | 11-20-2008 |
20090199655 | Method for Determining Working Point of a Magneto-Inductive Flow Measuring Device - A method for determining the working point of a magneto-inductive flow measuring device for detecting volume- or mass-flow of a medium flowing through a pipeline or measuring tube, wherein an alternating magnetic field produced by a coil arrangement is caused to pass through the pipeline or measuring tube, wherein a sensor-specific rise time (t | 08-13-2009 |
20090205438 | Magneto-inductive flow rate meter - A magneto-inductive flow measuring device providing, in addition to flow information for a medium, also information concerning electrical conductivity of the medium. For a highly accurate determination of the electrical conductivity, the invention provides the following solution: a temperature measuring unit is provided, which makes available information concerning the temperature of the medium. On the basis of the measured temperature, a control/evaluation unit ascertains a correction value for electrical conductivity and makes available a correspondingly corrected value for the electrical conductivity. | 08-20-2009 |
20090266176 | Magneto-inductive flow measuring device - A magneto-inductive flow measuring device, including: A measuring tube, through which a medium flows essentially in a direction of a measuring tube axis; a magnet arrangement, which produces a magnetic field passing through the measuring tube and extending essentially perpendicularly to the measuring tube axis; a first measuring electrode and a second measuring electrode; wherein the measuring electrodes are positioned in the measuring tube on a connecting line, which is directed essentially perpendicularly to the measuring tube axis and to the magnetic field; and an evaluation/control unit, which ascertains, on the basis of a measurement voltage tapped on the measuring electrodes, the volume- and/or mass-flow of the medium through the measuring tube. In order to increase the measuring accuracy of the multi-parameter flow measuring device, the first measuring electrode is made of a first material and the second measuring electrode is made of a second material different from the first material. The control/evaluation unit ascertains the direct voltage portion of the voltages tapped on the two measuring electrodes relative to a reference potential (φ | 10-29-2009 |
20090301218 | Magneto-Inductive Flow Measuring Device - The invention relates to an apparatus for measuring volume- or mass-flow of a medium ( | 12-10-2009 |
20090306796 | Apparatus for Operating a Process Installation - A set-up for operating a process installation. The set-up includes a control station and at least one field device which determines or monitors at least one process variable. Each field device has a program memory in which a boot-loader software is persistently implemented. The boot-loader software enables communication of the field device with the control station. A transmission link is provided, via which the control station and the field device, or field devices communicate with one another during operation. Each field device transmits to the control station upon booting of the field device via the transmission link device-specific information. The control station transmits to the field device after receipt of the device-specific information, application- and/or device-specific, measurement/control/evaluation software, which is matched to a particular application of the field device and which the field device stores in a data memory associated with it. The field device based on application- and/or device-specific, measurement/control/evaluation software available to it during operation, makes available information concerning the process variable. | 12-10-2009 |
20090315545 | Apparatus for Measurement of Volume-or-Mass-Flow of a Medium - The invention relates to an apparatus for measuring volume- or mass-flow of a medium flowing through a measuring tube ( | 12-24-2009 |
20100038964 | Method for Supplying Energy to a Field Device in Automation Technology - A method for supplying energy to a field device of process automation, which servers for registering a chemical and/or physical property of a process medium, energy required for operating the field device is obtained by means of the process medium. | 02-18-2010 |
20100281996 | Magneto-Inductive Flow Measuring Device - A magneto-inductive flow measuring device, including: A measuring tube, through which a medium flows essentially directed along a measuring tube axis; a magnet arrangement, which produces an alternating magnetic field passing through the measuring tube essentially perpendicularly to the measuring tube axis; two measuring electrodes arranged essentially on a line directed essentially perpendicularly to the measuring tube axis and to the magnetic field; and a control/evaluation unit, which determines volume, or mass, flow of the medium through the measuring tube on the basis of a measurement voltage tapped on the measuring electrodes. In order to detect an error state at the flow measuring device early, the control/evaluation unit determines current, actual, settling time to reach a stable measurement state of the measuring device. The control/evaluation unit then compares the actual settling time with a desired settling time predetermined for the measuring device for reaching the stable measurement state and generates an error report, when the actual settling time is greater than the predetermined, desired, settling time. | 11-11-2010 |