METSO AUTOMATION OY Patent applications |
Patent application number | Title | Published |
20140359367 | WIRELESS CONTROL FOR PROCESS AUTOMATION - A control loop includes a process controller for controlling a field device in a process. A remote measurement transmitter measures a desired process variable and transmits the measured variable as a wireless measurement signal to a wireless interface unit on the controller side. The interface unit passes the received measurement signal, and a trigger signal indicating a reception of a new measurement, to an adaptive estimator. When triggered by a trigger signal from the wireless interface, i.e. when a new measurement value is received, the adaptive estimator outputs the new value measurement value to the process controller. Otherwise, between consecutive trigger signals, the adaptive estimator generates an estimated measurement value that gradually moves towards a setpoint according to a predetermined estimation algorithm or process. | 12-04-2014 |
20140336788 | METHOD OF OPERATING A PROCESS OR MACHINE - An operator tool is provided to assist an operator of a process or machine in decision making. The tool is initiated by the operator selecting a key variable, “Variable of Interest”, at the user interface. The variable of interest usually is an output variable of interest (such as quality, cost, etc.). At least most significant variables related to the selected variable of interest are automatically determined by a statistical method and shown at the user interface. The operator can adjust the related variables shown on the interface. The impact of one variable to another is demonstrated by a prediction method and shown in a numerical and/or graphical form. After being satisfied with the result of the analysis, the operator decides on which is the preferred parameter change in order to overcome the problem in question or achieve the desired improvement, and then implements the corresponding change on the real system. | 11-13-2014 |
20140135947 | METHOD OF MONITORING AN INDUSTRIAL PROCESS - A plurality of real control inputs and real process measurements provided by a real automation system controlling an industrial process are continuously stored continuously storing in a historian database. At the same time, a plurality of forecast control inputs and process measurements provided by a virtual automation system based on a simulation model are continuously stored in a futurian database. Both the past operation of the industrial process up to present time based on data from the historian database and the forecast future operation of the industrial process from the present time onwards based on data from the futurian database are displayed on the operator screen. | 05-15-2014 |
20140130615 | SAMPLER - A sampler including an ejector and a sample channel extending to the ejector, which are placeable in a mixture of particles of a solid and a medium, the medium being a gas and/or a liquid. The ejector includes at least one inlet and an outlet. The ejector takes a mixture sample by using vacuum via the inlet and discharges it via the outlet so as to make the mixture sample flow from the inlet towards the outlet. The sample channel takes a desired measuring sample from the mixture sample flowing in the ejector, the solid particles and the medium being at least partly separable from one another in the ejector on the basis of the flow and inertia in the mixture sample. | 05-15-2014 |
20140021383 | DEVICE FOR REDUCING FLOW NOISE AND VALVE - Disclosed is a device for reducing flow noise. In order to achieve a low flow noise, the device includes inlet apertures for receiving a fluid flow, chambers into which one or more inlet apertures open up, a cross-sectional area of a single chamber being larger than a combined flow cross-sectional area of the inlet apertures opening up thereto, and chamber-specific outlet apertures for forwarding the fluid flow from the chamber, a flow cross-sectional area of each outlet aperture being smaller than the cross-sectional area of the chamber, and the combined flow cross-sectional area of all outlet apertures of the single chamber being larger than the combined flow cross-sectional area of the inlet apertures opening up into said chamber. | 01-23-2014 |
20130327126 | POROSITY MEASUREMENT - The measuring device is an on-line measuring device including a pressure generator and a sensor, by which is determined porosity of paper or board, constituting an object of measurement, by directing known suction effect to the paper or board and measuring low pressure produced by the suction effect for the determination of porosity. | 12-12-2013 |
20130249569 | MEASUREMENT OF AMOUNT OF SOLID IN SUSPENSION - A measuring part measures the amount of matter dispersed in a suspension on the basis of a measurement, in which electromagnetic radiation interacts with the suspension, and the proportional volume of a free gas contained in the suspension on the basis of a measurement of electrical conductivity and/or impedance distribution for determining the amount of dispersed solid matter in the suspension. | 09-26-2013 |
20130154777 | ELECTROMAGNET FOR LOW FIELD NMR MEASUREMENTS AND METHOD FOR MANUFACTURING THEREOF - The invention relates to an electromagnet and a method manufacturing the same. The electromagnet includes a frame having a volume within, and a conductive wiring wound around the frame. In accordance with the invention the magnet includes at least two circular grooves having two walls parallel to the each other and perpendicular to the longitudinal axis of the frame, at least two wire stacks each including at least one substack, wherein the wire has a cross section, at least one of the walls separating the two circular grooves, and jump wiring interconnecting the stacks so that contributions from jump wires of the adjacent stacks to total axial directional current are cancelled in average by the current of the return current wire, such that their contribution to the resulting magnetic field at the sample volume is minimized. | 06-20-2013 |
20130154644 | LOW-FIELD NMR DEVICE FOR MEASURING THE WATER CONTENT OF SOLIDS AND SLURRIES - A Nuclear Magnetic Resonance (NMR) apparatus and method for measuring the water content of samples has a device to produce a main magnetic field; a sample receiving space within a main magnetic field; a device to excite a measurable RF magnetization to a sample placed into the sample receiving space at an operating frequency defined by the main magnetic field; a device to measure the RF signal produced by the excited sample; and a device to determine the water content in the sample based on the RF signal. The sample receiving space is capable of accommodating a sample having a volume of at least 0.5 dm | 06-20-2013 |
20130151020 | MEASUREMENT ARRANGEMENT FOR FIELD DEVICES - Disclosed are sensors to measure predetermined process variables in the process pipeline and to transmit measurement data over wired automation lines to the automation system for process automation purposes. A wireless measurement transmitter is connected to the wired automation line between the sensor and the automation system. WMT is configured to intercept or tap the measurement data transferred on the automation line and to transmit the tapped measurement data over a wireless connection to an intelligent control valve for local control and/or diagnosis procedures performed at the intelligent control valve. | 06-13-2013 |
20130147482 | METHOD AND APPARATUS FOR VARYING ADAPTIVELY PULSE INTERVAL IN NMR-BASED WATER CONTENT MEASUREMENT - The invention relates to a NMR method for determining moisture content of a sample, in which method a sample is objected to a magnetic DC-field, the sample under magnetic DC-field is objected to a sequence of excitation pulses in RF-frequency with pulse interval for exciting hydrogen nuclei, and NMR signal of the excited hydrogen nuclei is measured. In accordance with the invention spin-lattice relaxation time is estimated for the sample, and pulse interval is adjusted longer than the estimated spin-lattice relaxation time. | 06-13-2013 |
20130116802 | TRACKING SIMULATION METHOD - A tracking simulator models an industrial process simultaneously and in parallel with the industrial process. The simulator receives control inputs provided by an automation system to control the industrial process. Based on these inputs, the simulator with its process model(s) provides simulated process outputs. In order to avoid divergence of the simulation models from the real process, the tracking simulator receives process measurements from the real process and is able to correct, i.e. update, its models based on these real process measurements and the simulator outputs. One or more of the updated or adjusting parameters for the simulation models are generated by PI or PID controller. Additionally, some of the updated parameters can be generated by an NM or SE method. The PI or PID controller can be an automatic controller tuning tool of the automation system. Additionally, some of the updated parameters can be generated by NM. | 05-09-2013 |
20130110418 | CONTROL VALVE DIAGNOSTICS | 05-02-2013 |
20120072000 | MODELLING OF A PROPERTY OF PAPER, PAPERBOARD OR BOARD - Properties of an end product, such as paper, paperboard or board, are important for the user of the end product. To be able to manufacture an end product of desired quality, it is important to know what kind of paper pulp used for manufacturing the end product results in a particular kind of property of the end product. Embodiments provide a method and an apparatus for generating a model, which model connects at least one property of the end product with at least one property of the paper pulp. On the basis of the model, also the manufacturing process can be controlled. | 03-22-2012 |
20110295407 | METHOD AND APPARATUS FOR CONDITION MONITORING OF VALVE - In the method and apparatus of the invention, the process point is taken into account when the condition and performance of a control valve are monitored. In the condition monitoring of the valve, process measurements are used in addition to measurements inside the valve in such a manner that the process measurements identify the operating point at which the valve operates, and the measurements inside the valve are observed at these operating points to detect changes and to determine the condition of the valve. According to an aspect of the invention, the variables representing the operating point of an industrial process are considered when changes in the friction load of the valve and/or the load factor of the actuator are observed. | 12-01-2011 |
20110226434 | METHOD FOR GUIDING WEB PATCHING USING A RE-REELER AND A CORRESPONDING SYSTEM - A method for guiding web patching, using a re-reeler, in connection with a paper machine and an off-line coating machine, in which method a defect map of the web is created on the paper machine, to show deviations some of which are shown on the coating machine, using selected criteria, to the operator, the deviations being patched using the re-reeler, guided by the defect map and preset patching rules. On the coating machine, the virtual location of the selected deviations is monitored through the coating machine and if a possible web break occurs, a deviation is localized relative to the web break, and on the basis of this monitoring, feedback is provided to the patching rules of the re-reeler, in order to optimize them. | 09-22-2011 |
20110204232 | DETERMINING THE AMOUNT OF STARCH - The invention relates to a method and arrangement for determining the amount of starch used in surface-sizing a cellulose product. In the solution according to the invention, the amount of starch is determined with a transmission method utilizing IR spectroscopy by using absorption wavelengths of cellulose. Absorption values are measured before adding a coating and after it, whereby the amount of starch is determined from the difference between these absorption values. | 08-25-2011 |
20110153230 | DRAINABILITY MEASUREMENT - A measurement device measures a liquid flow discharged from a funnel in a lower branch and/or a side branch. A modelling function is established between liquid flows received with the funnel and/or liquid flows discharged through the lower branch and/or the side branch. In drainability measurement, a sensor measures the flow through a wire out of a measurement chamber at least at two points in time. A processor establishes a parameter descriptive of the drainability from flows measured at the different points in time based on a modelling function stored in a memory. | 06-23-2011 |
20110015763 | METHOD FOR CONTROLLING A PROCESS AND FOR MONITORING THE CONDITION OF PROCESS EQUIPMENT, AND AN AUTOMATION SYSTEM - An automation system and a method for controlling a process and for monitoring the condition of process equipment. The method comprises the steps of measuring process signals indicating the condition of the process by means of a first sensor; measuring condition monitoring signals indicating the condition of process components by means of a second sensor; processing the process signals by means of a first I/O module; processing the condition monitoring signals by means of a second I/O module; transmitting the processed process signals obtained from the first I/O module to a process station. The method also comprises the steps of transferring the processed condition monitoring signals obtained from the second I/O module to the same process station; and processing both the said processed process signals and the said processed condition monitoring signals by process station software in the said process station. | 01-20-2011 |
20100319866 | MEASURING OF WEB - Optical radiation sources functioning on different optical bands radiate on different optical bands and focus optical radiation on a region in a web surface as pulses in such a manner that illumination areas of the pulses overlap on the plane of the web. At most one optical radiation band is focused on the web from the direction of the normal. The spatial intensity distribution of at least one optical band differs from the uniform distribution and the intensity distributions of at least two different optical bands differ from one another in a predetermined manner. A camera forms still images of the web surface region on each optical radiation band. An image-processing unit determines the surface topography of the web on the basis of the images. In addition, a controller may control the paper manufacturing process on the basis of the determined surface topography. | 12-23-2010 |
20100213400 | VALVE - The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector. | 08-26-2010 |
20100165344 | WEB MEASUREMENT - One measuring part of a traversing measuring unit measures at least one characteristic of a web with a first radiation type from a plurality of measuring locations during a traversing movement at successive moments in time. At least two measuring parts of an array measuring unit measure at least one characteristic of the web with another radiation type during each traversing movement at a plurality of different moments in time by directing the measurement to a plurality of measuring locations in the web at each moment in time. A signal processing unit is arranged to estimate at least one characteristic measured by the traversing measuring unit with at least one measurement of the array measuring unit. | 07-01-2010 |
20100116032 | SENSOR ELEMENT AND CONSISTENCY TRANSMITTER - A sensor element for a consistency transmitter for use in measurements of a pulp suspension and coated with a diamond coating. A consistency transmitter for measuring the consistency of a pulp suspension, comprising: a sensor element to be placed in the pulp suspension and provided with a diamond coating; a part provided with equipment for measuring the force/torque effective on the sensor element, for processing the force/torque by computation, and for converting the force/torque to an electrical signal; and a transmitting element, connected to the sensor element and said part, for transmitting the force/torque effective on the sensor element to said part. A method in the manufacture of a sensor element for a consistency transmitter for use in measurements of a pulp suspension, wherein the method comprises the step of coating the sensor element with a diamond coating. | 05-13-2010 |
20100024900 | Simple axial locking of a valve shaft - The invention concerns axial locking of a valve shaft to be non-turnably attached to a closing element of a valve, an end of the shaft to be attached to the closing element being machined on two opposite sides in order to fit into a pivot recess formed in the outer perimeter of the closing element. The invention is characterized by a collar part to be fitted to said end of the shaft and to be turned into a locking position, one of the end surfaces of the main part of said collar part having at least one axial projection that fits into the pivot recess of the closing element of the valve when the collar part is in the locking position and the end of the shaft is positioned into the pivot recess of the closing element. | 02-04-2010 |
20090301674 | METHOD AND MEASURING DEVICE FOR MEASURING RECYCLED FIBRE PULP - A measuring device is provided that includes a camera, and an image-processing unit and a fractionating pipe. The receives a sample from recycled fibre pulp of a recycled fibre process and arranges the particles of the flowing sample in accordance with particle size. The measuring device processes the sample as at least two fractions according to particle size. The camera images at least one fraction. The image-processing unit receives images imaged by the camera and measures at least one parameter of an added substance in at least one imaged fraction. | 12-10-2009 |
20090261526 | FEEDING DEVICE AND FEEDING METHOD - A feeding device comprises at least two feeding units. At least one feeding unit may send a sample towards the measurement device so that the sample passes at least one feeding unit next in the feed direction. | 10-22-2009 |
20090141265 | Method and Apparatus for Measuring Color of a Moving Web - A method and an apparatus for measuring color of a moving web. The web is measured by reflectance measurement and transmittance measurement, wherein the reflectance measurement is carried out by illuminating a surface of the web in a measuring area, where on the other side of the web at the measuring area resides a solidly attached backing element and measuring the radiation reflected from the web. The transmittance measurement is carried out by illuminating the web and measuring the radiation transmitted through the web. The radiation measured in the transmittance measurement is transmitted through the backing element. | 06-04-2009 |
20090139334 | Method and a System for Monitoring the Condition and Operation of Periodically Moving Objects - A system and a method for calculating a synchronized time average for a measurement signal obtained from an object to be measured and containing periodical variations. In the method: from the periodical variations of the measurement signal a frequency is determined, said frequency corresponding within predetermined limits to a frequency estimated as the periodicity characteristic of the object to be measured; a signal component representing the determined frequency is separated from the measurement signal by filtering, and the filtered signal is used as a synchronizing signal, and the measurement signal is divided into sequences by means of the synchronizing signal, and the synchronized time average of the sequences is calculated. In an example of the method, the rotating frequency or the moving frequency of the object selected as the periodicity characteristic to the object. | 06-04-2009 |
20090134351 | CONTROL VALVE - This invention relates to a control valve which comprises a first and a second flow channel ( | 05-28-2009 |
20090133845 | METHOD OF CONTROLLING RECYCLED FIBRE LINE, AND RECYCLED FIBRE LINE - Measuring devices measure at least one characteristic of the fibres of recycled fibre pulp and at least one characteristic of ink, and the measuring devices feed the measurement results to controllers of a pulping subprocess and a dispersing subprocess, the controllers performing multivariable-based predictive calculation and optimization of control functions. The controllers of the pulping sub-process and the dispersing subprocess generate control variables on the basis of the measurement results for mechanical and chemical processing of the recycled fibre pulp to be performed in the pulping subprocess and the dispersing subprocess. | 05-28-2009 |
20090057439 | Moistening Nozzle of a Paper Web - A moistening nozzle of a paper web comprises a frame into which air and water are fed. Inside the frame there is arranged a water nozzle wherewith water is conducted to an outlet of the moistening nozzle and an air nozzle wherewith air is correspondingly conducted to the outlet. The air nozzle and the water nozzle are arranged one within the other such that the air and the water form water mist that is sprayed out from the moistening nozzle. The air nozzle is provided with a thread that brings the air in swirling motion. The air nozzle comprises a sleeve part with an opening through which air is discharged and in said opening there is arranged a piece that is an integral part of the frame of the moistening nozzle, whereby a part of the moistening nozzle frame forms an inner edge of the air gap provided by said piece and the sleeve part. | 03-05-2009 |
20090056412 | METHOD FOR CALIBRATION OF MEASURING EQUIPMENT AND MEASURING EQUIPMENT - A method for the calibration of measuring equipment, and measuring equipment. The measuring equipment comprises at least one first sensor, at least one second sensor and at least one reference piece. When the measuring equipment is calibrated, a moving web is supported against the reference piece and the reference piece with the moving web supported thereto is moved to different distances from the first sensor and the second sensor. Further, a distance between the first sensor and the moving web and a distance between the second sensor and the reference piece is measured at least for two different distances, and the first sensor and the second sensor are calibrated to be uniform in relation to the movement of the reference piece. | 03-05-2009 |
20090025893 | Method and Apparatus for Determining the Total Peroxide Content of Pulp Suspension - A method and an apparatus for determining the total peroxide content of a cellulose pulp suspension in the pulp suspension bleaching stage, wherein the bleaching chemical is peroxide. A sample is taken from the pulp suspension, which sample is measured in a measuring device ( | 01-29-2009 |
20080308245 | Moistening Nozzle of a Paper Web - A moistening nozzle of a paper web comprises a frame ( | 12-18-2008 |