EP0594227A1 - Automatic control system of press compaction - Google Patents

Automatic control system of press compaction Download PDF

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Publication number
EP0594227A1
EP0594227A1 EP93200977A EP93200977A EP0594227A1 EP 0594227 A1 EP0594227 A1 EP 0594227A1 EP 93200977 A EP93200977 A EP 93200977A EP 93200977 A EP93200977 A EP 93200977A EP 0594227 A1 EP0594227 A1 EP 0594227A1
Authority
EP
European Patent Office
Prior art keywords
press
compaction
automatic control
control system
load
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Withdrawn
Application number
EP93200977A
Other languages
German (de)
French (fr)
Inventor
Dietrich Engmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IBERDITAN SL
Original Assignee
IBERDITAN SL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IBERDITAN SL filed Critical IBERDITAN SL
Publication of EP0594227A1 publication Critical patent/EP0594227A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements

Definitions

  • the present invention refers to an automatic control system of press compaction, being especially applicable to the manufacture of tiles and pavements.
  • pieces are produced in dry presses, compacting a granulate material with a specific moisture, to thus attain solidly compacted pieces that endure, after being pressed, drying, enameling, painting, belt conveyance treatments, etc., even kiln firing, where they receive, by means of high temperatures, the definitive feature and resistance.
  • the homogeneity of the product with regard to correct compaction is very important for the physical resistance of the pieces during the drying and firing process and when a product contracts during firing, it is even more important, since any difference of compaction would cause contraction differences, in other words, deformed pieces would be produced.
  • the purpose of this invention is to attain an automatic control system of compaction and at the same time rapid, without the need of taking samples.
  • very reliable and exact control of production can be achieved, since upon continuously having data after each pressing, statistically based decisions may be made, elaborating values based on many consecutive pressings, and in the event of adjustment by means of an intelligent feed slide, the load correction orders will also be considered on the grounds of many consecutive pressings and the possibility of mistakes upon processing non-representative values is eliminated.
  • Patent of invention number P-8901208 also of the same applicant firm, refers to an intelligent feed slide to carry out the correction of load of ceramic material on the basis of a series of samples taken by hand.
  • the automatic control system of press compaction that is the object of the invention, makes it possible to obtain data about the compaction directly when pressing takes place by distribution of pressure sensors installed in the press mold itself.
  • pressure or force sensors are installed in a mold punch, which may be a top or bottom punch.
  • the sensors measure the reactive force of the granulate material. Where there was a denser load, the compaction will logically be greater and the sensor in such an area will measure a higher force. Likewise, when it is an area with a smaller load, the compaction will be less and the sensor will measure a smaller force.
  • the sensors communicate the force measured in current or voltage differences and an amplifying system converts these values into signals for a computer where the data will be processed to elaborate statistical values, etc.
  • a data package is elaborated and sent by communication cable to the microprocesser control of the intelligent slide to correct defective load areas.
  • FIGS 1 and 2. They schematically show the automatic control system of press compaction, when the sensors are located in the top punch and the positions before and after compaction, respectively, have been represented.
  • FIGs 3 and 4.- They are schematic views similar to figures 1 and 2, with the sensors installed in the bottom punch.
  • References (6) and (7) respectively show the supports for the top punch (2) and bottom punch (5.)
  • This force is measured in voltage differences, and an amplifying system converts these values into signals for a processor, in such a way that the data are processed to elaborate statistical values, etc. thus continuously informing about the pressing quality.

Abstract

It is especially applicable in the manufacture of tiles and pavement, obtaining these pieces upon compacting the granulate material (3) with a specific percentage of moisture, then followed by a drying, enameling, painting treatment, etc. and even kiln firing.
The automatic control of compaction takes place upon distributing pressure sensors (1) in the mold itself of the press, built in the top (2) or bottom (3) punch, whereby making it possible to obtain data when pressing takes place.
Therefore, the stability of the load is statistically controlled upon the sensors (1) communicating the force measured in differences of voltage, transforming these values into signals for a computer, by means of an amplifying system, processing these data to elaborate statistical values, etc., thus continuously informing about the pressing quality.
The load correction is done by means of the intelligent feed slide that feeds the press that receives the corresponding orders with the value packages obtained by statistical evaluation.

Description

    OBJECT OF THE INVENTION
  • As is expressed in the title of this specification, the present invention refers to an automatic control system of press compaction, being especially applicable to the manufacture of tiles and pavements.
  • In the manufacture of ceramics, pieces are produced in dry presses, compacting a granulate material with a specific moisture, to thus attain solidly compacted pieces that endure, after being pressed, drying, enameling, painting, belt conveyance treatments, etc., even kiln firing, where they receive, by means of high temperatures, the definitive feature and resistance.
  • The homogeneity of the product with regard to correct compaction is very important for the physical resistance of the pieces during the drying and firing process and when a product contracts during firing, it is even more important, since any difference of compaction would cause contraction differences, in other words, deformed pieces would be produced.
  • The purpose of this invention is to attain an automatic control system of compaction and at the same time rapid, without the need of taking samples. With the data obtained continuously and automatically, very reliable and exact control of production can be achieved, since upon continuously having data after each pressing, statistically based decisions may be made, elaborating values based on many consecutive pressings, and in the event of adjustment by means of an intelligent feed slide, the load correction orders will also be considered on the grounds of many consecutive pressings and the possibility of mistakes upon processing non-representative values is eliminated.
    • BACKGROUND OF THE INVENTION
  • In the processes used up until now, in the one shown in patent 541.518 which claims a penetrometer to determine the density of the compacted ceramic piece, as well as the one developed by immersion in mercury in patent of invention P-8800227, both of the same applicant as of the present invention, the process is based on taking samples and therefore it is slow. No continuous control of production can be made and there is the risk that any sample taken does not represent true production, due to an instant load failure.
  • Patent of invention number P-8901208, also of the same applicant firm, refers to an intelligent feed slide to carry out the correction of load of ceramic material on the basis of a series of samples taken by hand.
    • DESCRIPTION OF THE INVENTION
  • The automatic control system of press compaction that is the object of the invention, makes it possible to obtain data about the compaction directly when pressing takes place by distribution of pressure sensors installed in the press mold itself.
  • In this way data of each pressing are obtained which makes it possible to control the load stability statistically. In other words, data of a single pressing (or sample) will not be taken for the evaluation of the load, but rather an entire series of pressings that may be few or many, depending on the load stability, in order to consider the load quality.
  • In order to carry out this control, pressure or force sensors, of the type used on the market, are installed in a mold punch, which may be a top or bottom punch.
  • When the compacting is done, when the top punch penetrates into the mold to compact the granulate material contained in it, the sensors measure the reactive force of the granulate material. Where there was a denser load, the compaction will logically be greater and the sensor in such an area will measure a higher force. Likewise, when it is an area with a smaller load, the compaction will be less and the sensor will measure a smaller force.
  • The sensors communicate the force measured in current or voltage differences and an amplifying system converts these values into signals for a computer where the data will be processed to elaborate statistical values, etc.
  • The data elaborated by the computer continuously inform about the pressing quality:
    • Whether or not the load is stable. Load irregularities are discovered with percentage values thereof, for example: 80% correct load, 10% somewhat defective and 10% very defective.
    • Whether the distribution of compaction is homogeneous and within the established limits thereof.
  • These same data are used to correct the load by means of the intelligent feed slide. A data package is elaborated and sent by communication cable to the microprocesser control of the intelligent slide to correct defective load areas.
  • As this data package is the statistical result of a series of pressings, there is no possibility of an erroneous correction as when the data are elaborated on the basis of samples taken by hand, as is presently done.
  • In order to permit a better understanding of the features of the invention and forming an integral part of this specification, a sheet of drawings in whose figures, with an illustrative and non-restrictive manner the following has been represented, is attached hereto:
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • Figures 1 and 2.- They schematically show the automatic control system of press compaction, when the sensors are located in the top punch and the positions before and after compaction, respectively, have been represented.
  • Figures 3 and 4.- They are schematic views similar to figures 1 and 2, with the sensors installed in the bottom punch.
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Making reference to the numbering used in the figures, we can see how the automatic control system of press compaction, which the invention proposes, makes it possible to control the pressing of ceramic pieces of tile and pavement, by means of sensors (1) installed in the top punch (2) of the press. The ceramic granulate material (3) is located inside the mold (4) upon the bottom punch (5.)
  • References (6) and (7) respectively show the supports for the top punch (2) and bottom punch (5.)
  • In figures 1 and 2 we can see the sensors (1) located in the top punch (2), while in figures 3 and 4, we can see the same sensors (2) coupled to the bottom punch (5.)
  • When the granulate material (3) has been pressed, as shown in figures 2 and 4, irrespective of the fact whether the sensors (1) are located in the top punch (2) or in the bottom one (5), when the top punch penetrates into the mold (4) and compacts the granulate material, the sensors measure the reactive force of the granulate material, shown with vertical arrows that are directed towards the sensors (1.)
  • This force is measured in voltage differences, and an amplifying system converts these values into signals for a processor, in such a way that the data are processed to elaborate statistical values, etc. thus continuously informing about the pressing quality.

Claims (3)

  1. Automatic control system of press compaction, especially applicable in the manufacture of tiles and pavement, where the pieces are produced in dry presses, compacting a granulate material (3) with a specific moisture to endure drying, enameling, painting, belt conveyance treatments, and even kiln firing where the definitive resistance and feature are achieved, characterized because compaction data are obtained directly when pressing takes place, upon distributing pressure sensors (1) in the press mold itself, built in the top (2) or bottom (5) punch thereof, which makes it possible to control the load stability statistically, the sensors (1) communicating the force measured in voltage differences.
  2. Automatic control system of press compaction, according to claim 1, characterized because there is an amplifying system that converts these values into signals for a computer, where the data will be processed to elaborate statistical values, etc., continuously informing about the pressing quality.
  3. Automatic control system of press compaction, according to claim 1, characterized because the load correction is carried out by means of an intelligent feed slide that feeds the press, upon receiving the corresponding orders with value packages obtained by statistical evaluation.
EP93200977A 1992-05-08 1993-04-03 Automatic control system of press compaction Withdrawn EP0594227A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9200963A ES2046114B1 (en) 1992-05-08 1992-05-08 AUTOMATIC CONTROL SYSTEM FOR PRESS COMPACTING.
ES9200963 1992-05-08

Publications (1)

Publication Number Publication Date
EP0594227A1 true EP0594227A1 (en) 1994-04-27

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EP93200977A Withdrawn EP0594227A1 (en) 1992-05-08 1993-04-03 Automatic control system of press compaction

Country Status (2)

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EP (1) EP0594227A1 (en)
ES (1) ES2046114B1 (en)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997036215A1 (en) * 1996-03-28 1997-10-02 Rosemount Inc. Device in a process system for detecting events
US6356191B1 (en) 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
US6370448B1 (en) 1997-10-13 2002-04-09 Rosemount Inc. Communication technique for field devices in industrial processes
US6434504B1 (en) 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US6473710B1 (en) 1999-07-01 2002-10-29 Rosemount Inc. Low power two-wire self validating temperature transmitter
US6505517B1 (en) 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6519546B1 (en) 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6539267B1 (en) 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US6556145B1 (en) 1999-09-24 2003-04-29 Rosemount Inc. Two-wire fluid temperature transmitter with thermocouple diagnostics
US6557118B2 (en) 1999-02-22 2003-04-29 Fisher Rosemount Systems Inc. Diagnostics in a process control system
US6601005B1 (en) 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US6611775B1 (en) 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US6633782B1 (en) 1999-02-22 2003-10-14 Fisher-Rosemount Systems, Inc. Diagnostic expert in a process control system
US6654697B1 (en) 1996-03-28 2003-11-25 Rosemount Inc. Flow measurement with diagnostics
US6701274B1 (en) 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6735484B1 (en) 2000-09-20 2004-05-11 Fargo Electronics, Inc. Printer with a process diagnostics system for detecting events
US6754601B1 (en) 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
US6772036B2 (en) 2001-08-30 2004-08-03 Fisher-Rosemount Systems, Inc. Control system using process model
US6859755B2 (en) 2001-05-14 2005-02-22 Rosemount Inc. Diagnostics for industrial process control and measurement systems
ES2296499A1 (en) * 2006-01-24 2008-04-16 Macer S.L. Intelligent pattern for use in pavement and pressing of ceramic coating, has sensors that are introduced in corresponding components, and additional information is provided from abnormal operation like rubbing of punches
US7702401B2 (en) 2007-09-05 2010-04-20 Fisher-Rosemount Systems, Inc. System for preserving and displaying process control data associated with an abnormal situation
US7750642B2 (en) 2006-09-29 2010-07-06 Rosemount Inc. Magnetic flowmeter with verification
US7921734B2 (en) 2009-05-12 2011-04-12 Rosemount Inc. System to detect poor process ground connections
US7940189B2 (en) 2005-09-29 2011-05-10 Rosemount Inc. Leak detector for process valve
US7949495B2 (en) 1996-03-28 2011-05-24 Rosemount, Inc. Process variable transmitter with diagnostics
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
US8005647B2 (en) 2005-04-08 2011-08-23 Rosemount, Inc. Method and apparatus for monitoring and performing corrective measures in a process plant using monitoring data with corrective measures data
US8044793B2 (en) 2001-03-01 2011-10-25 Fisher-Rosemount Systems, Inc. Integrated device alerts in a process control system
US8055479B2 (en) 2007-10-10 2011-11-08 Fisher-Rosemount Systems, Inc. Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
US8073967B2 (en) 2002-04-15 2011-12-06 Fisher-Rosemount Systems, Inc. Web services-based communications for use with process control systems
US8112565B2 (en) 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US8290721B2 (en) 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
US8301676B2 (en) 2007-08-23 2012-10-30 Fisher-Rosemount Systems, Inc. Field device with capability of calculating digital filter coefficients
US8417595B2 (en) 2001-03-01 2013-04-09 Fisher-Rosemount Systems, Inc. Economic calculations in a process control system
CN103302186A (en) * 2013-06-28 2013-09-18 苏州唐氏机械制造有限公司 Intelligent pressure detection stamping die
CN103316997A (en) * 2013-06-28 2013-09-25 苏州唐氏机械制造有限公司 Intelligent blanking die with pressure detecting function
US8788070B2 (en) 2006-09-26 2014-07-22 Rosemount Inc. Automatic field device service adviser
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
US9201420B2 (en) 2005-04-08 2015-12-01 Rosemount, Inc. Method and apparatus for performing a function in a process plant using monitoring data with criticality evaluation data
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US9207129B2 (en) 2012-09-27 2015-12-08 Rosemount Inc. Process variable transmitter with EMF detection and correction
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
US9927788B2 (en) 2011-05-19 2018-03-27 Fisher-Rosemount Systems, Inc. Software lockout coordination between a process control system and an asset management system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2112176B1 (en) * 1995-09-11 1998-11-16 Taulell S A AUTOMATIC CONTROL METHOD OF THE SEMI-DRY PRESSING CYCLE IN THE CERAMIC TILE COMPACTION PROCESS.
ES2125799B1 (en) * 1996-03-14 1999-08-01 Pesudo Arquimedes V Bono ELECTRONIC DEVICE TO COMPENSATE THE LOAD OF CLAYS IN THE MOLDS.
CN100402258C (en) * 2004-09-23 2008-07-16 程晓勤 Cutting type figure tube distributing method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742571B1 (en) * 1977-09-22 1979-03-29 Fette Wilhelm Gmbh Process for the creation of documents about the production of tablets and tablet presses
DE2831166A1 (en) * 1978-07-15 1980-01-24 Dorstener Maschf Ag Concrete press mould regulation system - has two load measuring devices between ram piston and punch
DE2915966A1 (en) * 1979-04-20 1980-11-06 Laeis Werke Ag Compression force measuring device for hydraulic press - uses two symmetrically-spaced pressure capsules or expansion strips
DE3109567A1 (en) * 1981-03-13 1982-09-23 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Arrangement for determining the distribution of densities when pressing powdered and/or granular material
CH668032A5 (en) * 1984-06-16 1988-11-30 Laeis Gmbh Unevenly-pressed ceramic item detection method - measures pressure distribution over surface and compares with desired value

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8604447A1 (en) * 1985-03-22 1986-02-01 Iberditan Sa System of automatic and continuous control in the manufacture of ceramic tiles (Machine-translation by Google Translate, not legally binding)
ES2013172A6 (en) * 1989-04-12 1990-04-16 Iberditan Sa System for automatic correction of the pressing density in the manufacture of tiles.
ES2019197A6 (en) * 1989-12-18 1991-06-01 Invest De Las Ind Ceramicas A Process and equipment for determining the apparent density of ceramic pieces shaped by pressing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742571B1 (en) * 1977-09-22 1979-03-29 Fette Wilhelm Gmbh Process for the creation of documents about the production of tablets and tablet presses
DE2831166A1 (en) * 1978-07-15 1980-01-24 Dorstener Maschf Ag Concrete press mould regulation system - has two load measuring devices between ram piston and punch
DE2915966A1 (en) * 1979-04-20 1980-11-06 Laeis Werke Ag Compression force measuring device for hydraulic press - uses two symmetrically-spaced pressure capsules or expansion strips
DE3109567A1 (en) * 1981-03-13 1982-09-23 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Arrangement for determining the distribution of densities when pressing powdered and/or granular material
CH668032A5 (en) * 1984-06-16 1988-11-30 Laeis Gmbh Unevenly-pressed ceramic item detection method - measures pressure distribution over surface and compares with desired value

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US7949495B2 (en) 1996-03-28 2011-05-24 Rosemount, Inc. Process variable transmitter with diagnostics
US6017143A (en) * 1996-03-28 2000-01-25 Rosemount Inc. Device in a process system for detecting events
US8290721B2 (en) 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
US6654697B1 (en) 1996-03-28 2003-11-25 Rosemount Inc. Flow measurement with diagnostics
US6397114B1 (en) 1996-03-28 2002-05-28 Rosemount Inc. Device in a process system for detecting events
US6539267B1 (en) 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US6532392B1 (en) 1996-03-28 2003-03-11 Rosemount Inc. Transmitter with software for determining when to initiate diagnostics
WO1997036215A1 (en) * 1996-03-28 1997-10-02 Rosemount Inc. Device in a process system for detecting events
US6519546B1 (en) 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6754601B1 (en) 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US6434504B1 (en) 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6601005B1 (en) 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US6370448B1 (en) 1997-10-13 2002-04-09 Rosemount Inc. Communication technique for field devices in industrial processes
US6594603B1 (en) 1998-10-19 2003-07-15 Rosemount Inc. Resistive element diagnostics for process devices
US6611775B1 (en) 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US6557118B2 (en) 1999-02-22 2003-04-29 Fisher Rosemount Systems Inc. Diagnostics in a process control system
US6615090B1 (en) 1999-02-22 2003-09-02 Fisher-Rosemont Systems, Inc. Diagnostics in a process control system which uses multi-variable control techniques
US6633782B1 (en) 1999-02-22 2003-10-14 Fisher-Rosemount Systems, Inc. Diagnostic expert in a process control system
US6356191B1 (en) 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
US6473710B1 (en) 1999-07-01 2002-10-29 Rosemount Inc. Low power two-wire self validating temperature transmitter
US6505517B1 (en) 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6701274B1 (en) 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6556145B1 (en) 1999-09-24 2003-04-29 Rosemount Inc. Two-wire fluid temperature transmitter with thermocouple diagnostics
US6735484B1 (en) 2000-09-20 2004-05-11 Fargo Electronics, Inc. Printer with a process diagnostics system for detecting events
US8620779B2 (en) 2001-03-01 2013-12-31 Fisher-Rosemount Systems, Inc. Economic calculations in a process control system
US8417595B2 (en) 2001-03-01 2013-04-09 Fisher-Rosemount Systems, Inc. Economic calculations in a process control system
US8044793B2 (en) 2001-03-01 2011-10-25 Fisher-Rosemount Systems, Inc. Integrated device alerts in a process control system
US6859755B2 (en) 2001-05-14 2005-02-22 Rosemount Inc. Diagnostics for industrial process control and measurement systems
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US6772036B2 (en) 2001-08-30 2004-08-03 Fisher-Rosemount Systems, Inc. Control system using process model
US9094470B2 (en) 2002-04-15 2015-07-28 Fisher-Rosemount Systems, Inc. Web services-based communications for use with process control systems
US8073967B2 (en) 2002-04-15 2011-12-06 Fisher-Rosemount Systems, Inc. Web services-based communications for use with process control systems
US9760651B2 (en) 2002-04-15 2017-09-12 Fisher-Rosemount Systems, Inc. Web services-based communications for use with process control systems
US8005647B2 (en) 2005-04-08 2011-08-23 Rosemount, Inc. Method and apparatus for monitoring and performing corrective measures in a process plant using monitoring data with corrective measures data
US9201420B2 (en) 2005-04-08 2015-12-01 Rosemount, Inc. Method and apparatus for performing a function in a process plant using monitoring data with criticality evaluation data
US8112565B2 (en) 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US7940189B2 (en) 2005-09-29 2011-05-10 Rosemount Inc. Leak detector for process valve
ES2296499A1 (en) * 2006-01-24 2008-04-16 Macer S.L. Intelligent pattern for use in pavement and pressing of ceramic coating, has sensors that are introduced in corresponding components, and additional information is provided from abnormal operation like rubbing of punches
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
US8788070B2 (en) 2006-09-26 2014-07-22 Rosemount Inc. Automatic field device service adviser
US7750642B2 (en) 2006-09-29 2010-07-06 Rosemount Inc. Magnetic flowmeter with verification
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
US8301676B2 (en) 2007-08-23 2012-10-30 Fisher-Rosemount Systems, Inc. Field device with capability of calculating digital filter coefficients
US7702401B2 (en) 2007-09-05 2010-04-20 Fisher-Rosemount Systems, Inc. System for preserving and displaying process control data associated with an abnormal situation
US8055479B2 (en) 2007-10-10 2011-11-08 Fisher-Rosemount Systems, Inc. Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
US7921734B2 (en) 2009-05-12 2011-04-12 Rosemount Inc. System to detect poor process ground connections
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US9927788B2 (en) 2011-05-19 2018-03-27 Fisher-Rosemount Systems, Inc. Software lockout coordination between a process control system and an asset management system
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
US9207129B2 (en) 2012-09-27 2015-12-08 Rosemount Inc. Process variable transmitter with EMF detection and correction
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
CN103316997A (en) * 2013-06-28 2013-09-25 苏州唐氏机械制造有限公司 Intelligent blanking die with pressure detecting function
CN103302186A (en) * 2013-06-28 2013-09-18 苏州唐氏机械制造有限公司 Intelligent pressure detection stamping die

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