Patent application number | Description | Published |
20090210085 | Method for Suppressing the Influence of Roll Eccentricities - The invention relates to a method for suppressing the influence of roll eccentricities on the run-out thickness of a rolled stock, which runs through a rolling stand, roll eccentricities being identified by using a process model and taken into consideration in the determination of a correction signal for a at lest one final control element, preferably a final control element for the adjustment position, of the rolling stand, wherein the measured tensile force upstream of the rolling stand is fed to the process model to identify the roll eccentricities. According to the invention, variations in tensile force are fed back in a targeted manner to reduce the effects of periodic roll eccentricities on the rolled stock, whereas all other sources of variation are eliminated. A process model of the rolling nip and the rolls, preferably based on the observer principle, produces reliable data on the roll eccentricity. | 08-20-2009 |
20100242566 | METHOD FOR A OPERATING A ROLLING MILL TRAIN WITH CURVATURE RECOGNITION - In a multi-stand rolling mill train, a strip successively runs through individual rolling stands. The strip—always as seen in relation to a rolling centre line—is threaded into each of the rolling stands with known respective head offset and inlet-side head pitch, and therefore a strip head emerges with the respective head offset, a respective outlet-side head pitch and a respective outlet-side head curvature. The respective outlet-side head pitch is determined on the basis of respective inlet-side head pitch and pass reduction which takes place in the respective rolling stand. The respective outlet-side head curvature of the strip is determined based on respective measured and further data. The respective outlet-side head curvature is used to determine a respective control intervention for the respective rolling stand and/or the one arranged directly downstream and to drive the corresponding rolling stand in accordance with the respective determined control intervention. | 09-30-2010 |
20120101625 | CONTROL METHOD FOR THE MENISCUS OF A CONTINUOUS CASTING MOLD - The inflow of liquid metal into a continuous casting mould is set by a closure device. A measured actual meniscus value is fed to a controller determining a closure device target position on the basis of the actual and a corresponding target value. The measured actual value is fed to a disturbance variable compensator. The target position/corrected target position or a corresponding actual value are further fed to the disturbance variable compensator which determines the disturbance variable compensation value. The disturbance variable compensator has a model of the continuous casting mold for determining an expected value. A number of oscillating compensators determine a frequency disturbance proportion. The sum of the frequency disturbance proportions corresponds to the disturbance variable compensation value. The disturbance variable compensator has a jump determiner, by which it determines the jump compensation value by integrating the difference. | 04-26-2012 |
20120296466 | CONTROL METHOD FOR THE CASTING LEVEL OF A CONTINUOUS CASTING MOLD - A method is provided for adjusting the inflow of liquid metal into a continuous casting mold using a closing device. The partially solidified metal strand is drawn out of the continuous casting mold. A measured actual value of the casting level is fed into a casting level controller, which derives a target setting for the closing device. The measured actual value and a target setting of the closing device are fed to an interference compensator, which determines an expected value for the casting level, which is subtracted from the measured actual value. The difference is fed to a differential controller that derives a controller output signal therefrom, which is multiplied by a superposition factor and superimposed on the target setting as an interference compensation value. An inflow signal derived from the actual setting is further superimposed on the controller output signal and fed to an integrator, which generates an output signal corresponding to the expected value for the casting level. | 11-22-2012 |
Patent application number | Description | Published |
20090192709 | POSITION SOURCE SELECTION - Techniques are described for position source selection. In an implementation, an electronic device provides a variety of functionality including at least functionality to determine position. The electronic device may be further configured to select between a plurality of position sources to determine position based upon a variety of selection criteria. In an implementation, a last known position may be stored when position is being determined through the plurality of position sources. The last known position may be used as an alternative to determining position via the position sources when one or more of the position sources are unavailable. In another implementation, the last known position may be employed to automatically select one of the plurality of position sources to be used by the electronic device for determining position. | 07-30-2009 |
20120124125 | AUTOMATIC JOURNAL CREATION - Techniques are described that facilitate the automatic creation of journals that may include a variety of related content. Journal creation functionality may be furnished by a server to one or more client devices to create journals of content that include content from one or more content sources. The content provided by the content sources includes tags (e.g., metadata) describing the content. Thus, a client device may furnish a request to a server to create a journal of content. The request includes an attribute to relate the content of the journal. The server causes content to be associated with the journal from one or more computer-readable content sources accessible by the server by associating one or more of the content tags with the attribute for one or more existing journals and thereafter creating the journal using the processor by causing content from the one or more existing journals to be associated with the journal, the associated content having tags associated with the attribute. | 05-17-2012 |
20130288638 | METHODS AND APPARATUS FOR COLLECTING AND USING INFORMATION REGARDING LOCATION OBJECT-BASED ACTIONS - An embodiment of a communication system includes a client device adapted to receive a location object that includes tracer information, and to perform one or more location object-based actions using the location object. The client device stores the tracer information and location object usage information, which describes the one or more location object-based actions that have been performed using the location object. The client device also sends the stored information to a server. The system also includes the server, which is adapted to receive the location object usage information and the tracer information reported by the client device. In an embodiment, the system also includes a service provider adapted to initiate a billing event, which may include generation and transmission of a bill to a sponsor entity based on an evaluation of the location object usage information and the tracer information reported by the client device. | 10-31-2013 |
Patent application number | Description | Published |
20120091326 | SENSOR DEVICE, COMPRISING AN OPTICAL SENSOR, A CONTAINER AND A COMPARTMENTALIZATION MEANS - A sensor device has an optical sensor ( | 04-19-2012 |
20120103579 | PLATE HEAT EXCHANGER - The invention relates to a plate heat exchanger comprising a plurality of plates having flow channels, wherein a first plate has a front side having at least one flow channel for a first fluid and a second plate has a front side having at least one flow channel for a second fluid, and wherein the plates have through openings via which the flow channels for the same fluid are respectively connected to one another, wherein a front plate, which is placed in front of the front side of the first plate, has ports for the first fluid and for the second fluid, wherein an end plate forms the end of the aligned plates, wherein the plates and ports are formed from plastic, and wherein the plates are bonded or welded tightly together. | 05-03-2012 |
20120267518 | SENSOR PROTECTOR - A sensor protector is intended to reduce the sensitivity of the optical sensor ( | 10-25-2012 |
20120313267 | AERATION DEVICE FOR BIOREACTORS - Aeration device for bioreactors with a first aeration element with gas outlet openings of a first size and with at least one second aeration element with gas outlet openings of a second size, the aeration elements being formed by a common housing with separate aeration channels. | 12-13-2012 |
20130175716 | AERATION DEVICE FOR BIOREACTORS - Aeration device for bioreactors with an aeration element with gas outlet openings arranged in a housing, the aeration element taking the form of a microsparger, the gas outlet openings of which are in each case spaced apart from one another and have a size of between 100 μm and 200 μm. At least one second aeration element with gas outlet openings of a second size is preferably provided, the aeration elements being formed by a common housing with separate aeration channels. | 07-11-2013 |