WO2003050479A1 - Feldgerätelektronik mit einer sensoreinheit für die prozessmesstechnik - Google Patents
Feldgerätelektronik mit einer sensoreinheit für die prozessmesstechnik Download PDFInfo
- Publication number
- WO2003050479A1 WO2003050479A1 PCT/EP2002/013535 EP0213535W WO03050479A1 WO 2003050479 A1 WO2003050479 A1 WO 2003050479A1 EP 0213535 W EP0213535 W EP 0213535W WO 03050479 A1 WO03050479 A1 WO 03050479A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- field device
- device electronics
- sensor unit
- microprocessor
- analog
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000008569 process Effects 0.000 title claims abstract description 6
- 230000006870 function Effects 0.000 claims description 52
- 239000000523 sample Substances 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 230000001419 dependent effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
- G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
Definitions
- the invention is based on the object of proposing a field device electronics which requires only a few components, can nevertheless be used in a variety of ways and can easily be adapted to different field conditions.
- control signals are converted into analog control signals by means of a digital / analog converter before being forwarded to the sensor unit, the analog / digital converter also being integrated in the microprocessor in a further embodiment of the invention.
- the active electromechanical transducer is designed as a tuning fork with a drive / receiver unit.
- the receiving unit generates the analog measurement signals for the field device electronics and the field device electronics transmits the control signals to the drive unit.
- the field device electronics and the sensor unit are integrated in one housing.
- filters which have to have narrow tolerances no longer need expensive passive capacitors and / or inductors with small tolerances.
- the filter functions additionally having no temperature dependency due to temperature-dependent analog components.
- the field device electronics described can be used both for sensor units designed as electromechanical transducers and for sensor units designed as capacitive probes. It is only necessary to execute the corresponding program sequences with the microprocessor, so that a change in functionality can be achieved by simply changing the memory content.
- Fig. 2 a second embodiment of the invention in a schematic representation.
- Function blocks 10, 20, 30, 40, 50 thus generate the control signal for sensor unit 4 (tuning fork) from the measurement signal.
- the function block 10 performs an analog / digital conversion of the measurement signal generated by the sensor unit 4 (tuning fork), the measurement signal in the exemplary embodiment shown being an analog signal picked up by a piezoelectric receiving transducer, which represents the vibrations which the tuning fork executes.
- Function block 20 filters the digitized measurement signal and feeds it to function block 30.
- the function block 20 is implemented as a second-order digital bandpass filter for suppressing higher oscillation modes.
- control signal for the sensor unit 4 is generated by the function blocks 110, 120, 130.
- Function block 120 which is implemented as a square wave generator, calculates square wave signals with different frequencies depending on the position of frequency switch 110. In the illustrated embodiment with two different frequencies f1 and f2, which are alternately transmitted from the function block 130, which is implemented as a digital port, via the signal path 5 to the capacitive probe 4.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Technology Law (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/497,542 US20050071113A1 (en) | 2001-12-12 | 2002-11-30 | Electronic field device with a sensor unit for process measurement |
AU2002352197A AU2002352197A1 (en) | 2001-12-12 | 2002-11-30 | Electronic field device with a sensor unit for process measurement |
EP02787879A EP1454114A1 (de) | 2001-12-12 | 2002-11-30 | Feldgerätelektronik mit einer sensoreinheit für die prozessmesstechnik |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10161072.6 | 2001-12-12 | ||
DE10161072A DE10161072A1 (de) | 2001-12-12 | 2001-12-12 | Feldgeräteelektronik mit einer Sensoreinheit für die Prozessmesstechnik |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003050479A1 true WO2003050479A1 (de) | 2003-06-19 |
Family
ID=7708957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/013535 WO2003050479A1 (de) | 2001-12-12 | 2002-11-30 | Feldgerätelektronik mit einer sensoreinheit für die prozessmesstechnik |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050071113A1 (de) |
EP (1) | EP1454114A1 (de) |
AU (1) | AU2002352197A1 (de) |
DE (1) | DE10161072A1 (de) |
WO (1) | WO2003050479A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008015057A1 (de) * | 2006-08-02 | 2008-02-07 | Endress+Hauser Gmbh+Co.Kg | VORRICHTUNG ZUR BESTIMMUNG UND/ODER ÜBERWACHUNG EINER PROZESSGRÖßE EINES MEDIUMS |
EP2151672A1 (de) * | 2008-08-08 | 2010-02-10 | VEGA Grieshaber KG | Verfahren zum Messen eines Füllstands oder Grenzstands, Füllstand- oder Grenzstandmessgeräte-Schaltung und Füllstand- oder Grenzstandmessgerät |
WO2012028426A3 (de) * | 2010-09-03 | 2012-07-05 | Endress+Hauser Gmbh+Co.Kg | Vibronisches messgerät |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10237931A1 (de) * | 2002-08-14 | 2004-02-26 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Überwachung eines vorbestimmten Füllstands eines Messmediums in einem Behälter |
DE10315164A1 (de) * | 2003-04-02 | 2004-10-14 | Endress + Hauser Gmbh + Co. Kg | Verfahren zur näherungsweisen Bestimmung eines Messzeitpunktes und entsprechende Vorrichtung |
DE10328296A1 (de) | 2003-06-23 | 2005-01-20 | Endress + Hauser Gmbh + Co. Kg | Ansatzalarm bei Feldgeräten |
DE102004036359B4 (de) * | 2004-04-19 | 2008-11-06 | Uwt Gmbh | Verfahren zur Ermittlung einer Aussage über die Sicherheit einer mit einer Schwingsonde in einem Behälter durchgeführten Flüssigkeits-Füllstandsmessung |
DE102005008207B4 (de) * | 2005-02-22 | 2014-12-24 | Endress + Hauser Gmbh + Co. Kg | Feldgerät zur Bestimmung und/oder Überwachung einer Prozessgröße |
DE102006028006A1 (de) * | 2006-06-14 | 2007-12-20 | Siemens Ag | Feldgerät und Verfahren zum Verarbeiten mindestens einer Messgröße in einem Feldgerät |
DE102010028303A1 (de) * | 2010-04-28 | 2011-12-01 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße eines Mediums |
US9626335B2 (en) * | 2013-01-17 | 2017-04-18 | Honeywell International Inc. | Field device including a software configurable analog to digital converter system |
DE102014119061A1 (de) | 2014-12-18 | 2016-06-23 | Endress + Hauser Gmbh + Co. Kg | Vibronischer Sensor |
US11566936B1 (en) | 2016-02-12 | 2023-01-31 | Munters Corporation | Method and apparatus to non-intrusively measure the weight of loose bulk material within a rigid containing structure |
CN107218955B (zh) * | 2016-03-22 | 2021-04-20 | 横河电机株式会社 | 现场设备以及检测器 |
DE102016111134A1 (de) | 2016-06-17 | 2017-12-21 | Endress+Hauser Gmbh+Co. Kg | Vibronischer Sensor |
JP6969108B2 (ja) * | 2017-02-20 | 2021-11-24 | 横河電機株式会社 | フィールド機器および情報提供方法 |
DE102018126808A1 (de) * | 2018-10-26 | 2020-04-30 | Krohne Messtechnik Gmbh | Feldmessgerät |
CN115003993A (zh) * | 2020-01-24 | 2022-09-02 | Vega格里沙贝两合公司 | 用于物位测量探头的电子单元 |
DE102021123443A1 (de) | 2021-09-10 | 2023-03-16 | Endress+Hauser Conducta Gmbh+Co. Kg | Verfahren zum Ermitteln eines Leitfähigkeitswerts |
Citations (7)
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EP0271849A2 (de) * | 1986-12-19 | 1988-06-22 | DODUCO KG. Dr. Eugen Dürrwächter | Impedanzmessgerät zur Bestimmung der durch Eintauchen in eine Flüssigkeit veränderlichen Impedanz eines kapazitiven Sensors |
EP0338400A2 (de) * | 1988-04-16 | 1989-10-25 | DODUCO GMBH + Co Dr. Eugen DÀ¼rrwächter | Kapazitiver Sensor zum Bestimmen des Niveaus einer Flüssigkeit in einem Behälter |
US5477473A (en) * | 1992-04-02 | 1995-12-19 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Sensor-drive and signal-processing method |
WO1998029785A1 (en) * | 1996-12-31 | 1998-07-09 | Rosemount Inc. | Device in a process system for validating a control signal from a field device |
EP1091199A1 (de) * | 1999-10-07 | 2001-04-11 | Endress + Hauser GmbH + Co. | Verfahren zur Funktionsüberprüfung eines Grenzschalters |
EP1093039A1 (de) * | 1999-10-15 | 2001-04-18 | Endress + Hauser Flowtec AG | Programmierbares Feldmessgerät |
EP1108984A1 (de) * | 1999-10-18 | 2001-06-20 | Endress + Hauser Flowtec AG | Programmierbares Feldgerät |
Family Cites Families (14)
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CA2049618A1 (en) * | 1991-07-18 | 1993-01-19 | Christopher J. O'brien | Integrated transmitter and controller |
DE19512372A1 (de) * | 1995-04-01 | 1996-10-10 | Abb Patent Gmbh | Einrichtung zur eigensicheren Signalanpassung |
JP2000502199A (ja) * | 1995-12-06 | 2000-02-22 | ハネウエル・インコーポレーテッド | 流体運動を伴うプロセス制御システムの予防保守方法 |
US5940290A (en) * | 1995-12-06 | 1999-08-17 | Honeywell Inc. | Method of predictive maintenance of a process control system having fluid movement |
US5970430A (en) * | 1996-10-04 | 1999-10-19 | Fisher Controls International, Inc. | Local device and process diagnostics in a process control network having distributed control functions |
DE19644801C1 (de) * | 1996-10-28 | 1998-05-28 | Samson Ag | Vorrichtung zur Steuerung und Überwachung von Stellgeräten mit Auf/Zu-Charakteristik |
US6104875A (en) * | 1997-12-18 | 2000-08-15 | Honeywell Inc. | Method for field programming an industrial process transmitter |
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WO2000060369A1 (en) * | 1999-04-05 | 2000-10-12 | Spinix Corporation | Passive solid-state magnetic field sensors and applications therefor |
EP1096348B1 (de) * | 1999-11-01 | 2005-01-12 | Abb Research Ltd. | Integration eines Feldleitgerätes in ein Anlagenleitsystem |
DE10014272B4 (de) * | 2000-03-22 | 2008-06-05 | Endress + Hauser Gmbh + Co. Kg | Feldgerät, sowie Verfahren zum Umprogrammieren eines Feldgerätes |
DE10032774A1 (de) * | 2000-07-06 | 2002-01-17 | Endress Hauser Gmbh Co | Feldgerät |
DE10063982A1 (de) * | 2000-12-14 | 2002-07-04 | Ifak Inst Fuer Automation Und | Feldgerät für Automatisierungssysteme |
US6505135B2 (en) * | 2001-03-13 | 2003-01-07 | Micro Motion, Inc. | Initialization algorithm for drive control in a coriolis flowmeter |
-
2001
- 2001-12-12 DE DE10161072A patent/DE10161072A1/de not_active Withdrawn
-
2002
- 2002-11-30 EP EP02787879A patent/EP1454114A1/de not_active Withdrawn
- 2002-11-30 US US10/497,542 patent/US20050071113A1/en not_active Abandoned
- 2002-11-30 WO PCT/EP2002/013535 patent/WO2003050479A1/de not_active Application Discontinuation
- 2002-11-30 AU AU2002352197A patent/AU2002352197A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271849A2 (de) * | 1986-12-19 | 1988-06-22 | DODUCO KG. Dr. Eugen Dürrwächter | Impedanzmessgerät zur Bestimmung der durch Eintauchen in eine Flüssigkeit veränderlichen Impedanz eines kapazitiven Sensors |
EP0338400A2 (de) * | 1988-04-16 | 1989-10-25 | DODUCO GMBH + Co Dr. Eugen DÀ¼rrwächter | Kapazitiver Sensor zum Bestimmen des Niveaus einer Flüssigkeit in einem Behälter |
US5477473A (en) * | 1992-04-02 | 1995-12-19 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Sensor-drive and signal-processing method |
WO1998029785A1 (en) * | 1996-12-31 | 1998-07-09 | Rosemount Inc. | Device in a process system for validating a control signal from a field device |
EP1091199A1 (de) * | 1999-10-07 | 2001-04-11 | Endress + Hauser GmbH + Co. | Verfahren zur Funktionsüberprüfung eines Grenzschalters |
EP1093039A1 (de) * | 1999-10-15 | 2001-04-18 | Endress + Hauser Flowtec AG | Programmierbares Feldmessgerät |
EP1108984A1 (de) * | 1999-10-18 | 2001-06-20 | Endress + Hauser Flowtec AG | Programmierbares Feldgerät |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008015057A1 (de) * | 2006-08-02 | 2008-02-07 | Endress+Hauser Gmbh+Co.Kg | VORRICHTUNG ZUR BESTIMMUNG UND/ODER ÜBERWACHUNG EINER PROZESSGRÖßE EINES MEDIUMS |
US8316711B2 (en) | 2006-08-02 | 2012-11-27 | Endress + Hauser Gmbh + Co. Kg | Apparatus for ascertaining and/or monitoring a process variable of a medium |
EP2151672A1 (de) * | 2008-08-08 | 2010-02-10 | VEGA Grieshaber KG | Verfahren zum Messen eines Füllstands oder Grenzstands, Füllstand- oder Grenzstandmessgeräte-Schaltung und Füllstand- oder Grenzstandmessgerät |
US8201447B2 (en) | 2008-08-08 | 2012-06-19 | Vega Grieshaber Kg | Process for measuring a fill level or limit state, circuit for a device that measures a fill level or limit state, and device that measures a fill level or limit state |
WO2012028426A3 (de) * | 2010-09-03 | 2012-07-05 | Endress+Hauser Gmbh+Co.Kg | Vibronisches messgerät |
US9575035B2 (en) | 2010-09-03 | 2017-02-21 | Endress + Hauser Gmbh + Co. Kg | Vibronic measuring device |
Also Published As
Publication number | Publication date |
---|---|
EP1454114A1 (de) | 2004-09-08 |
US20050071113A1 (en) | 2005-03-31 |
AU2002352197A1 (en) | 2003-06-23 |
DE10161072A1 (de) | 2003-06-18 |
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