EP1851379A2 - Actuator system for use in control of a sheet or web forming process - Google Patents
Actuator system for use in control of a sheet or web forming processInfo
- Publication number
- EP1851379A2 EP1851379A2 EP06735547A EP06735547A EP1851379A2 EP 1851379 A2 EP1851379 A2 EP 1851379A2 EP 06735547 A EP06735547 A EP 06735547A EP 06735547 A EP06735547 A EP 06735547A EP 1851379 A2 EP1851379 A2 EP 1851379A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuators
- quality control
- power
- sheet
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
Definitions
- This invention relates to systems for controlling the cross-directional profile of sheet and web materials and more particularly to a cross-directional profile system that uses actuators and in which the power and/or communication to the actuators may be wireless or contactless and/or on the same cable.
- on-line measurements can be made to detect properties of sheet and web materials during manufacture thereof.
- sheet is used herein including in the claims to refer to either a sheet or a web.
- on-line measurements are made to enable prompt control of sheet and web making processes and, thus, to enhance sheet quality while reducing the quantity of substandard sheet material which is produced before undesirable process conditions are corrected.
- on-line sensors can detect variables such as basis weight, moisture content, caliper, coating weight, finish, color, and converting of paper sheets during manufacture.
- cross direction refers to the direction across the surface of the sheet perpendicular to the machine direction, that is, the direction of travel of the sheet material.
- Measurement information provided by the scanning sensors is assembled for each scan to provide a "profile" of the detected property of the sheet in the cross direction.
- Each profile thus comprises a succession of sheet measurements at adjacent locations or slices, the profile extending generally in the cross direction.
- cross directional variations in sheet properties can be detected.
- appropriate control adjustments can be made to the sheet making machine.
- Such adjustments are made by pluralities of cross directional actuators, such as motor driven slice lip profile control actuators located at the discharge of the headbox of a paper machine; inductive heaters for controlling the diameters of calender and/or other paper machine rollers along the length thereof; and coating blade actuators for controlling the CD weight profiles of coatings applied to one or both surfaces of the paper.
- Pluralities of cross directional actuators are also used in other industrial sheet forming processes such as plastic extrusion, metal rolling, etc.
- the actuators are used to adjust, flatten and shape the cross direction properties, such as density, moisture content, thickness, and optical properties, of the sheets that are being manufactured.
- these cross direction actuators will number from 20 to over 200 at one location on the sheet forming machine. There may be several actuator systems at various locations along the sheet formation process.
- a sheet forming system that comprises: one or more quality control systems for use in forming the sheet; at least one actuator driven device having a plurality of actuators each associated with formation of the sheet; a module for providing power to the plurality of actuators without having a cable connected between the power providing module and the plurality of actuators; and a drive signal module connected to at least one of the one or more quality control systems for providing bidirectional communications between the at least one quality control system and each of the plurality of actuators.
- a sheet forming system that comprises: a quality control part that has: one or more quality control systems for use in forming the sheet; a modulator/demodulator associated with at least one of the one or more quality control systems; an actuator driven part that has : at least one actuator driven device having a plurality of actuators each associated with formation of the sheet, each of the actuators comprising a modulator/demodulator; a cable for providing an electric power signal from the quality control part to the actuator driven part, the cable connected to the modulator/demodulator associated with the at least one of the one or more quality control systems for modulating the electric power signal to carry communication signals from the quality control part for the actuator driven part; and each of the plurality of actuators further comprising means for receiving the modulated electric power signals from the quality control part without having the cable physically connected to each of the plurality of actuators, the modulator/demodulator associated with each of the plurality of actuators for demodulating the communications signals.
- a sheet forming system that comprises: a quality control part that has: one or more quality control systems for use in forming the sheet; a power and communications module including a modulator/demodulator associated with at least one of the one or more quality control systems; an actuator driven part that has: at least one actuator driven device having a plurality of actuators each associated with formation of the sheet, each of the actuators comprising a modulator/demodulator; and a cable for providing an electric power signal from the quality control part to the actuator driven part, the cable connected to the modulator/demodulator associated with the at least one of the one or more quality control systems for modulating the electric power signal to carry communication signals from the quality control part for the actuator driven part and to each of the actuator modulator/demodulators .
- a sheet forming system that comprises: one or more quality control systems for use in forming the sheet; at least one actuator driven device having a plurality of actuators each associated with formation of the sheet; a module for providing power to the plurality of actuators; a cable physically connecting the power providing module to each of the plurality of actuators; and a drive signal module connected to at least one of the one or more quality control systems for providing bidirectional wireless communications between the at least one quality control system and each of the plurality of actuators .
- Fig. 1 shows a typical sheet forming machine such as a papermaking machine and various actuator driven profilers that may be used on the machine.
- Fig. 2 shows in block diagram form one or more quality control systems connected to a machine for making a sheet such as paper, one or more scanners and various special function machines associated with the making of the sheet .
- Figs . 3 shows an embodiment for the present invention in which there are a wireless connection of power and two way communications between a quality control system and one or more actuator driven devices and Fig. 3a shows an embodiment in which the connection of power is contactless .
- Fig. 4 shows an embodiment for the present invention where power is supplied to the actuators and bidirectional communication between the control quality systems and the actuators are both accomplished in a contactless manner over a power cable.
- Fig. 5 shows an embodiment for the present invention where a single cable is connected to the actuators to provide both electric power and bi-directional communication between the control quality systems and the actuators.
- Fig. 6 shows an embodiment for the present invention where electric power is provided to all of the actuators over a cable and bi-directional communication between the control quality systems and the actuators is provided by the wireless antenna system of Fig. 3.
- Fig. 1 there is shown a typical papermaking machine 10 and various actuator driven profilers 12, 14, 16, 18, 20, 22, 24 and 26 that may be use on machine 10. More specifically, machine 10 as is well known to those of ordinary skill in the art will include an actuator driven dilution profiler 12 and an actuator driven slice profiler 14 associated with headbox 10a.
- the headbox 10a feeds a pulp suspension onto the initial part of a lower wire (not shown in Fig. 1) .
- the actuator driven profilers 12 and 14 and others of the actuator driven profilers described herein are used to control the transverse profile of the suspension.
- Papermaking machine 10 also includes a Fourdrinier table 10b and a press section 10c that may include one or more actuator driven steam profilers such as profiler 16 of Fig. 1.
- the moisture profile in the cross-machine direction (CD) is one of many important qualities of paper products. It is not only important that the overall moisture level be controlled, but also that the moisture distribution throughout the sheet be controlled both in the direction that the sheet is moving known as the machine direction (MD) and in the CD. Variation in moisture content of the sheet will often affect paper quality as much or even more than the absolute moisture content .
- Steam showers profilers such as profiler 16 are conventional profiling systems that work by selectively delivering steam onto the paper web during production.
- Profiling steam showers deliver a variable distribution of steam in zones across the paper web. The amount of steam passing through each zone of a steam shower is adjusted through an actuator located in that zone.
- Steam showers are widely used on the Fourdrinier table 10b to help drainage and increase production.
- the press section 10c steam is added before the press nips to increase the temperature of the web.
- the added temperature makes the water removal by pressing much more effective as the added moisture removal is much greater than the added moisture due to steam condensation.
- Further downstream machine 10 may also include an actuator driven air water profiler 18, a calender profiler 20, a coat weight profiler 22, a finishing profiler 24 and an induction profiler 26.
- Profiling steam showers such as calender profiler 20, are also used in the calendering process to improve gloss and smoothness of the paper products.
- Moisture spray systems such as air water profiler 18, are also conventional profiling systems normally used in the evaporating sections of papermaking machines. The water spray systems are designed to apply a profile of moisture spray in the cross-machine direction to counter an undesirable moisture profile in the paper web. These systems consist of a series of flow-controlling actuators capable of independently adjusting the amount of spray in discrete adjacent zones in the CD.
- the induction profiler 26 is used for heating the paper roll to provide caliper and gloss control.
- Fig. 1 shows a papermaking machine 10 with various actuator driven profilers 12 to 26 it is well known to those of ordinary skill in the art that some of those actuator driven profilers may be used on special functions machines other than machine 10, such as a blade coater or a supercalender or a slitter winder, that are also associated with papermaking. This use is shown in block diagram form in Fig. 2.
- one or more quality control systems (QCS) 30a and 30b are connected by suitable means 32 which may be a physical cable or a wireless connection as described below to a paper machine 34, a blade coater 36, a supercalender 38, one or more scanners 40a and 40b and a converter 42.
- Paper machine 34 may have edge control actuators and various actuator driven profilers such as the slice profiler, dilution profiler, steam profiler, air water profiler, coat weight profiler and induction profiler shown in Fig. 1.
- Blade coater 36 has an actuator driven coat weight profiler
- supercalender 38 has actuator driven steam and induction profilers
- converter 42 has an actuator driven slitter winder.
- the actuators of each of the one or more actuator driven profilers in papermaking machine 10 or the various actuators described in connection with the machines shown in block diagram form in Fig. 2 receive power and engage in bi-directional communications with the QCS system such as systems 30a and 30b of Fig. 2 as follows: a.
- this embodiment uses as, is described below, a technigue hereinafter referred to as "wireless" to transmit power to the actuators and to provide bidirectional communications between the actuators and with the one or more QCSs - alternatively this embodiment may use a closed magnetic path, hereinafter referred to as "contactless" to transmit power to each of the actuators - a subset of this embodiment is a cable physically connected between the one or more QCSs and the actuators for bi-directional communications between the actuators and wireless or contactless power; b.
- Fig. 3 there is shown in simplified block diagram form the embodiment where no cables are physically connected to the actuators are used to transmit power to the actuators and no cables are physically connected to the actuators are used for bi-directional communication between the actuators and one or more QCSs.
- the embodiment shown in Fig. 3 uses a technique referred to as "wireless" for both the transmission of power and the bi-directional communications and thus the embodiment as a whole is said to be wireless.
- Bi-directional communication with one or more QCSs such as QCS 30a and/or QCS 30b of Fig. 2 takes place through a primary signal antenna 44 which is in close proximity to the array 46 of actuators 46a, 46b, 46c ... 46n and by an antenna (not shown in Fig. 3) which is located in each of the actuators.
- the primary signal antenna 44 interfaces with the one or more QCSs through a signal drive antenna module 48. Power is transmitted to each of the actuators 46a to 46n from power drive module 49 by a transformer arrangement where the secondary side of the transformer is embedded in each actuator 46a to 46n and the primary side 47 of the transformer is located outside of the actuator.
- a closed magnetic path may be used to transmit power to each of the actuators by using small ring types cores 45 that consist of two half circle parts 45a and 45b.
- One of the half circle parts carries the secondary winding 45c and the half circle parts can be clipped together around the primary coil wire 45d.
- the arrangement shown in Fig. 3a uses a technique referred to as "contactless" for the transmission of power.
- the embodiment shown in Fig. 3 is wireless as to both transmission of power and bi-directional communications and the embodiment of Fig. 3a is wireless as to bi-directional communications and contactless as to the transmission of power as in both embodiments power supplied to and bi-directional communication with each of the actuators 4 ⁇ a to 4 ⁇ n does not require the physical connection of a communication cable and a power cable to each of the actuators as in the systems of the prior art.
- a subset of the embodiment shown in Fig. 3 is where the power is supplied to each of the actuators in the wireless or contactless manner shown in Figs. 3 and 3a and the bi-directional communications between the one or more QCSs and the actuators is accomplished through a cable that is connected to each actuator as is shown in the aforementioned U.S. Patent Nos. 5,771,174 and 5,381,341 the disclosures of which are hereby incorporated herein by reference.
- Fig. 4 there is shown in simplified form an embodiment for the present invention wherein power is supplied to all of the actuators and bi-directional communication between the one or more QCSs and all of the actuators are both accomplished in a contactless manner over a power cable.
- the simplified diagram of Fig. 4 shows a single actuator such as for example actuator 4 ⁇ a of Fig. 3 which has included therein a part of a magnetic core 50 that may be made from ferrite or a similar material with a wire 52 wound on the core.
- the actuator also includes a modulator/demodulator 54.
- a power and communication cable 56 External to and not connected to the actuators is a power and communication cable 56.
- a modulator/demodulator (not shown in Fig. 4) that modulates the AC signal on the power and communication cable 56 to provide communication to all of the actuators and demodulates the communication signals modulated on the AC power signal at the actuators to receive communications from the actuators .
- the communication and power cable 56 includes adjacent to each actuator a magnetic core 58 that may be made from ferrite or a similar material which core in combination with the magnetic core 50 embedded in each actuator forms a transformer that allows the modulated AC power signal on cable 56 to be received and demodulated by each actuator.
- a magnetic core 58 that may be made from ferrite or a similar material which core in combination with the magnetic core 50 embedded in each actuator forms a transformer that allows the modulated AC power signal on cable 56 to be received and demodulated by each actuator.
- the embodiment shown in Fig. 4 is also contactless as power supplied to and bi-directional communication with each of the actuators such as actuators 4 ⁇ a to 46n of Fig. 3 does not require the physical connection of a communication cable and a power cable to each of the actuators as in the systems of the prior art.
- a cable 62 is physically connected from the source of power to each of the actuators 64a, 64b, 64c in a manner well known in the art to provide power to all of the actuators and the bi-directional communications between the actuators and the one or more QCSs also occurs using cable 62.
- Each actuator 64a, 64b, 64c includes an associated embedded modulator/demodulator 66a, 66b, 66c for bi- directional communications over cable 62 with the one or more QCSs.
- a power and communications module 68 Upstream from the actuators 64a, 64b and 64c is a power and communications module 68 that includes a modulator/demodulator (not shown in Fig. 5) that allows power to be transmitted over cable 62 to each of the actuators and the cable to also carry the bi-directional communications between the actuators and the one or more QCSs.
- FIG. 6 there is shown in simplified form an embodiment 70 for the present invention wherein power is provided to each of actuators 72a, 72b ... 72n over a cable 74 that is physically connected by associated connector 76a, 76b ... 76n to each of an associated one of the actuators in a manner well known in the art.
- a power drive module 78 provides the power to cable 72.
- Bi-directional communication between each of the actuators 72a, 72b ... 72n and the one or more QCSs is provided wirelessly by the antenna system described above for the embodiment shown in Fig. 3.
- a signal drive antenna module 80 is connected between the one or more QCSs and the communication antenna 82.
- Antenna 82 is in close proximity to each of the actuators 72a, 72b ... 72n and each of the actuators include an antenna .
Landscapes
- Near-Field Transmission Systems (AREA)
- Controlling Sheets Or Webs (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/063,512 US20060185809A1 (en) | 2005-02-23 | 2005-02-23 | Actuator system for use in control of a sheet or web forming process |
PCT/US2006/005932 WO2006091524A2 (en) | 2005-02-23 | 2006-02-21 | Actuator system for use in control of a sheet or web forming process |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1851379A2 true EP1851379A2 (en) | 2007-11-07 |
Family
ID=36572121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06735547A Withdrawn EP1851379A2 (en) | 2005-02-23 | 2006-02-21 | Actuator system for use in control of a sheet or web forming process |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060185809A1 (en) |
EP (1) | EP1851379A2 (en) |
JP (1) | JP2008532469A (en) |
CN (1) | CN101133209B (en) |
CA (1) | CA2601338C (en) |
WO (1) | WO2006091524A2 (en) |
Families Citing this family (103)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7513975B2 (en) * | 2003-06-25 | 2009-04-07 | Honeywell International Inc. | Cross-direction actuator and control system with adaptive footprint |
US7446491B2 (en) | 2005-02-24 | 2008-11-04 | Abb Ltd. | Intelligent power management for actuators |
US7825543B2 (en) | 2005-07-12 | 2010-11-02 | Massachusetts Institute Of Technology | Wireless energy transfer |
AU2006269374C1 (en) | 2005-07-12 | 2010-03-25 | Massachusetts Institute Of Technology | Wireless non-radiative energy transfer |
US7811417B2 (en) * | 2005-12-30 | 2010-10-12 | Honeywell Asca, Inc. | Cross-machine direction actuators for machine clothing |
US20070227447A1 (en) * | 2006-04-04 | 2007-10-04 | Honeywell International, Inc. | Control of a coating process |
JP4855150B2 (en) * | 2006-06-09 | 2012-01-18 | 株式会社トプコン | Fundus observation apparatus, ophthalmic image processing apparatus, and ophthalmic image processing program |
US8115448B2 (en) | 2007-06-01 | 2012-02-14 | Michael Sasha John | Systems and methods for wireless power |
US9421388B2 (en) | 2007-06-01 | 2016-08-23 | Witricity Corporation | Power generation for implantable devices |
EP2281322B1 (en) * | 2008-05-14 | 2016-03-23 | Massachusetts Institute of Technology | Wireless energy transfer, including interference enhancement |
US8482158B2 (en) | 2008-09-27 | 2013-07-09 | Witricity Corporation | Wireless energy transfer using variable size resonators and system monitoring |
US8497601B2 (en) | 2008-09-27 | 2013-07-30 | Witricity Corporation | Wireless energy transfer converters |
US9577436B2 (en) | 2008-09-27 | 2017-02-21 | Witricity Corporation | Wireless energy transfer for implantable devices |
US8461720B2 (en) | 2008-09-27 | 2013-06-11 | Witricity Corporation | Wireless energy transfer using conducting surfaces to shape fields and reduce loss |
US8937408B2 (en) | 2008-09-27 | 2015-01-20 | Witricity Corporation | Wireless energy transfer for medical applications |
US8400017B2 (en) | 2008-09-27 | 2013-03-19 | Witricity Corporation | Wireless energy transfer for computer peripheral applications |
US8686598B2 (en) | 2008-09-27 | 2014-04-01 | Witricity Corporation | Wireless energy transfer for supplying power and heat to a device |
US8324759B2 (en) | 2008-09-27 | 2012-12-04 | Witricity Corporation | Wireless energy transfer using magnetic materials to shape field and reduce loss |
US8461721B2 (en) | 2008-09-27 | 2013-06-11 | Witricity Corporation | Wireless energy transfer using object positioning for low loss |
US8304935B2 (en) | 2008-09-27 | 2012-11-06 | Witricity Corporation | Wireless energy transfer using field shaping to reduce loss |
US8441154B2 (en) | 2008-09-27 | 2013-05-14 | Witricity Corporation | Multi-resonator wireless energy transfer for exterior lighting |
US9106203B2 (en) | 2008-09-27 | 2015-08-11 | Witricity Corporation | Secure wireless energy transfer in medical applications |
US9515494B2 (en) | 2008-09-27 | 2016-12-06 | Witricity Corporation | Wireless power system including impedance matching network |
US8598743B2 (en) | 2008-09-27 | 2013-12-03 | Witricity Corporation | Resonator arrays for wireless energy transfer |
US8933594B2 (en) | 2008-09-27 | 2015-01-13 | Witricity Corporation | Wireless energy transfer for vehicles |
US8410636B2 (en) | 2008-09-27 | 2013-04-02 | Witricity Corporation | Low AC resistance conductor designs |
US8629578B2 (en) | 2008-09-27 | 2014-01-14 | Witricity Corporation | Wireless energy transfer systems |
US8692410B2 (en) | 2008-09-27 | 2014-04-08 | Witricity Corporation | Wireless energy transfer with frequency hopping |
US8946938B2 (en) | 2008-09-27 | 2015-02-03 | Witricity Corporation | Safety systems for wireless energy transfer in vehicle applications |
US8907531B2 (en) | 2008-09-27 | 2014-12-09 | Witricity Corporation | Wireless energy transfer with variable size resonators for medical applications |
US8772973B2 (en) | 2008-09-27 | 2014-07-08 | Witricity Corporation | Integrated resonator-shield structures |
US9318922B2 (en) | 2008-09-27 | 2016-04-19 | Witricity Corporation | Mechanically removable wireless power vehicle seat assembly |
EP3059875B1 (en) | 2008-09-27 | 2019-01-30 | WiTricity Corporation | Wireless energy transfer systems |
US8963488B2 (en) | 2008-09-27 | 2015-02-24 | Witricity Corporation | Position insensitive wireless charging |
US8922066B2 (en) | 2008-09-27 | 2014-12-30 | Witricity Corporation | Wireless energy transfer with multi resonator arrays for vehicle applications |
US8692412B2 (en) | 2008-09-27 | 2014-04-08 | Witricity Corporation | Temperature compensation in a wireless transfer system |
US8901778B2 (en) | 2008-09-27 | 2014-12-02 | Witricity Corporation | Wireless energy transfer with variable size resonators for implanted medical devices |
US8471410B2 (en) | 2008-09-27 | 2013-06-25 | Witricity Corporation | Wireless energy transfer over distance using field shaping to improve the coupling factor |
US9065423B2 (en) | 2008-09-27 | 2015-06-23 | Witricity Corporation | Wireless energy distribution system |
US8723366B2 (en) | 2008-09-27 | 2014-05-13 | Witricity Corporation | Wireless energy transfer resonator enclosures |
US9160203B2 (en) | 2008-09-27 | 2015-10-13 | Witricity Corporation | Wireless powered television |
US9601266B2 (en) | 2008-09-27 | 2017-03-21 | Witricity Corporation | Multiple connected resonators with a single electronic circuit |
US8901779B2 (en) | 2008-09-27 | 2014-12-02 | Witricity Corporation | Wireless energy transfer with resonator arrays for medical applications |
US8643326B2 (en) | 2008-09-27 | 2014-02-04 | Witricity Corporation | Tunable wireless energy transfer systems |
US9105959B2 (en) | 2008-09-27 | 2015-08-11 | Witricity Corporation | Resonator enclosure |
US8487480B1 (en) | 2008-09-27 | 2013-07-16 | Witricity Corporation | Wireless energy transfer resonator kit |
US8476788B2 (en) | 2008-09-27 | 2013-07-02 | Witricity Corporation | Wireless energy transfer with high-Q resonators using field shaping to improve K |
US8669676B2 (en) | 2008-09-27 | 2014-03-11 | Witricity Corporation | Wireless energy transfer across variable distances using field shaping with magnetic materials to improve the coupling factor |
US8957549B2 (en) | 2008-09-27 | 2015-02-17 | Witricity Corporation | Tunable wireless energy transfer for in-vehicle applications |
US9093853B2 (en) | 2008-09-27 | 2015-07-28 | Witricity Corporation | Flexible resonator attachment |
US9035499B2 (en) | 2008-09-27 | 2015-05-19 | Witricity Corporation | Wireless energy transfer for photovoltaic panels |
US8569914B2 (en) | 2008-09-27 | 2013-10-29 | Witricity Corporation | Wireless energy transfer using object positioning for improved k |
US8947186B2 (en) | 2008-09-27 | 2015-02-03 | Witricity Corporation | Wireless energy transfer resonator thermal management |
US9544683B2 (en) | 2008-09-27 | 2017-01-10 | Witricity Corporation | Wirelessly powered audio devices |
US9601261B2 (en) | 2008-09-27 | 2017-03-21 | Witricity Corporation | Wireless energy transfer using repeater resonators |
US8461722B2 (en) | 2008-09-27 | 2013-06-11 | Witricity Corporation | Wireless energy transfer using conducting surfaces to shape field and improve K |
US9184595B2 (en) | 2008-09-27 | 2015-11-10 | Witricity Corporation | Wireless energy transfer in lossy environments |
US8587153B2 (en) | 2008-09-27 | 2013-11-19 | Witricity Corporation | Wireless energy transfer using high Q resonators for lighting applications |
US9601270B2 (en) | 2008-09-27 | 2017-03-21 | Witricity Corporation | Low AC resistance conductor designs |
US9396867B2 (en) | 2008-09-27 | 2016-07-19 | Witricity Corporation | Integrated resonator-shield structures |
US8912687B2 (en) | 2008-09-27 | 2014-12-16 | Witricity Corporation | Secure wireless energy transfer for vehicle applications |
US8928276B2 (en) | 2008-09-27 | 2015-01-06 | Witricity Corporation | Integrated repeaters for cell phone applications |
US8552592B2 (en) | 2008-09-27 | 2013-10-08 | Witricity Corporation | Wireless energy transfer with feedback control for lighting applications |
US9744858B2 (en) | 2008-09-27 | 2017-08-29 | Witricity Corporation | System for wireless energy distribution in a vehicle |
US9246336B2 (en) | 2008-09-27 | 2016-01-26 | Witricity Corporation | Resonator optimizations for wireless energy transfer |
US8466583B2 (en) | 2008-09-27 | 2013-06-18 | Witricity Corporation | Tunable wireless energy transfer for outdoor lighting applications |
US8587155B2 (en) | 2008-09-27 | 2013-11-19 | Witricity Corporation | Wireless energy transfer using repeater resonators |
EP2345100B1 (en) | 2008-10-01 | 2018-12-05 | Massachusetts Institute of Technology | Efficient near-field wireless energy transfer using adiabatic system variations |
US9602168B2 (en) | 2010-08-31 | 2017-03-21 | Witricity Corporation | Communication in wireless energy transfer systems |
EP2695484B1 (en) * | 2011-04-05 | 2015-10-14 | Comaintel, Inc. | Induction heating workcoil |
US9948145B2 (en) | 2011-07-08 | 2018-04-17 | Witricity Corporation | Wireless power transfer for a seat-vest-helmet system |
EP3435389A1 (en) | 2011-08-04 | 2019-01-30 | WiTricity Corporation | Tunable wireless power architectures |
KR102010943B1 (en) | 2011-09-09 | 2019-08-14 | 위트리시티 코포레이션 | Foreign object detection in wireless energy transfer systems |
US20130062966A1 (en) | 2011-09-12 | 2013-03-14 | Witricity Corporation | Reconfigurable control architectures and algorithms for electric vehicle wireless energy transfer systems |
US9318257B2 (en) | 2011-10-18 | 2016-04-19 | Witricity Corporation | Wireless energy transfer for packaging |
JP2015502729A (en) | 2011-11-04 | 2015-01-22 | ワイトリシティ コーポレーションWitricity Corporation | Wireless energy transfer modeling tool |
EP2807720A4 (en) | 2012-01-26 | 2015-12-02 | Witricity Corp | Wireless energy transfer with reduced fields |
US9481777B2 (en) | 2012-03-30 | 2016-11-01 | The Procter & Gamble Company | Method of dewatering in a continuous high internal phase emulsion foam forming process |
US9343922B2 (en) | 2012-06-27 | 2016-05-17 | Witricity Corporation | Wireless energy transfer for rechargeable batteries |
US9287607B2 (en) | 2012-07-31 | 2016-03-15 | Witricity Corporation | Resonator fine tuning |
US9595378B2 (en) | 2012-09-19 | 2017-03-14 | Witricity Corporation | Resonator enclosure |
EP4145671A1 (en) | 2012-10-19 | 2023-03-08 | WiTricity Corporation | Foreign object detection in wireless energy transfer systems |
US9449757B2 (en) | 2012-11-16 | 2016-09-20 | Witricity Corporation | Systems and methods for wireless power system with improved performance and/or ease of use |
JP2016534698A (en) | 2013-08-14 | 2016-11-04 | ワイトリシティ コーポレーションWitricity Corporation | Impedance tuning |
US9780573B2 (en) | 2014-02-03 | 2017-10-03 | Witricity Corporation | Wirelessly charged battery system |
US9952266B2 (en) | 2014-02-14 | 2018-04-24 | Witricity Corporation | Object detection for wireless energy transfer systems |
WO2015161035A1 (en) | 2014-04-17 | 2015-10-22 | Witricity Corporation | Wireless power transfer systems with shield openings |
US9842687B2 (en) | 2014-04-17 | 2017-12-12 | Witricity Corporation | Wireless power transfer systems with shaped magnetic components |
US9837860B2 (en) | 2014-05-05 | 2017-12-05 | Witricity Corporation | Wireless power transmission systems for elevators |
EP3140680B1 (en) | 2014-05-07 | 2021-04-21 | WiTricity Corporation | Foreign object detection in wireless energy transfer systems |
US9954375B2 (en) | 2014-06-20 | 2018-04-24 | Witricity Corporation | Wireless power transfer systems for surfaces |
CN107258046B (en) | 2014-07-08 | 2020-07-17 | 无线电力公司 | Resonator equalization in wireless power transfer systems |
US10574091B2 (en) | 2014-07-08 | 2020-02-25 | Witricity Corporation | Enclosures for high power wireless power transfer systems |
US9540770B2 (en) * | 2014-09-25 | 2017-01-10 | Honeywell Limited | Modular sensing system for web-based applications |
US9843217B2 (en) | 2015-01-05 | 2017-12-12 | Witricity Corporation | Wireless energy transfer for wearables |
US10248899B2 (en) | 2015-10-06 | 2019-04-02 | Witricity Corporation | RFID tag and transponder detection in wireless energy transfer systems |
CN108700620B (en) | 2015-10-14 | 2021-03-05 | 无线电力公司 | Phase and amplitude detection in wireless energy transfer systems |
US10063110B2 (en) | 2015-10-19 | 2018-08-28 | Witricity Corporation | Foreign object detection in wireless energy transfer systems |
US10141788B2 (en) | 2015-10-22 | 2018-11-27 | Witricity Corporation | Dynamic tuning in wireless energy transfer systems |
US10075019B2 (en) | 2015-11-20 | 2018-09-11 | Witricity Corporation | Voltage source isolation in wireless power transfer systems |
AU2017214479A1 (en) | 2016-02-02 | 2018-08-09 | Witricity Corporation | Controlling wireless power transfer systems |
CN109075614B (en) | 2016-02-08 | 2021-11-02 | 韦特里西提公司 | Variable capacitance device, impedance matching system, transmission system, and impedance matching network |
US11043848B2 (en) | 2017-06-29 | 2021-06-22 | Witricity Corporation | Protection and control of wireless power systems |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI85731C (en) * | 1989-06-01 | 1997-08-20 | Valmet Paper Machinery Inc | Reglersystem i en pappers- eller kartonmaskin |
JP3207294B2 (en) * | 1993-06-02 | 2001-09-10 | 株式会社安川電機 | Free hydraulic system |
JPH0865926A (en) * | 1994-08-23 | 1996-03-08 | Yaskawa Electric Corp | Autonomous air-pressure generator |
JPH08219118A (en) * | 1995-02-14 | 1996-08-27 | Yaskawa Electric Corp | Autonomous distributed hydraulic pressure controller |
CN1179191A (en) * | 1995-03-23 | 1998-04-15 | 西门子公司 | Method and device for process control in paper and carboard manufacture |
US5771174A (en) * | 1995-12-21 | 1998-06-23 | Measurex Corporation | Distributed intelligence actuator controller with peer-to-peer actuator communication |
JP3838286B2 (en) * | 1997-01-31 | 2006-10-25 | 株式会社安川電機 | Direct acting contactless transmission equipment |
-
2005
- 2005-02-23 US US11/063,512 patent/US20060185809A1/en not_active Abandoned
-
2006
- 2006-02-21 CN CN2006800055417A patent/CN101133209B/en not_active Expired - Fee Related
- 2006-02-21 WO PCT/US2006/005932 patent/WO2006091524A2/en active Application Filing
- 2006-02-21 JP JP2007557083A patent/JP2008532469A/en active Pending
- 2006-02-21 CA CA2601338A patent/CA2601338C/en not_active Expired - Fee Related
- 2006-02-21 EP EP06735547A patent/EP1851379A2/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2006091524A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006091524A2 (en) | 2006-08-31 |
JP2008532469A (en) | 2008-08-14 |
CN101133209B (en) | 2010-10-06 |
CA2601338C (en) | 2011-05-31 |
US20060185809A1 (en) | 2006-08-24 |
CA2601338A1 (en) | 2006-08-31 |
WO2006091524A3 (en) | 2007-01-18 |
CN101133209A (en) | 2008-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2601338C (en) | Actuator system for use in control of a sheet or web forming process | |
EP0708859B1 (en) | Method for the control of the transverse profiles of a web | |
EP1458928B1 (en) | Method and apparatus for caliper control of a fibrous web | |
US20090255925A1 (en) | System, apparatus, and method for induction heating using flux-balanced induction heating workcoil | |
AU4618499A (en) | Method for manufacture of paper and a paper machine | |
US20100200570A1 (en) | System and method for reducing crosstalk between workcoils in induction heating applications | |
EP3198236B1 (en) | System and method for measuring one or more characteristics of a web of material in a web manufacturing or processing system | |
US20090255922A1 (en) | System and method for reducing current exiting a roll through its bearings using balanced magnetic flux vectors in induction heating applications | |
CA2910420C (en) | Cable track for scanning head of paper machine or other system | |
US20090258771A1 (en) | System and method for reducing current exiting a roll through its bearings | |
EP2999944B1 (en) | Power delivery system for providing power to sensor head of paper machine or other system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20070809 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ENDRESEN, JAN Inventor name: SCHEIBLE, GUNTRAM Inventor name: LORENZ, RALPH S. Inventor name: DOERSCHUK, DAVID C. Inventor name: ELFRINK, RUDOLPH B. Inventor name: APNESETH, CHRISTOFFER |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20090507 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20121023 |