DE102007012938A1 - Process variable e.g. viscosity, determining and/or monitoring device, has window unit permitting determination of variable using reference sensor, sensor unit determining and/or monitoring variable, and fastening unit fastening sensor unit - Google Patents
Process variable e.g. viscosity, determining and/or monitoring device, has window unit permitting determination of variable using reference sensor, sensor unit determining and/or monitoring variable, and fastening unit fastening sensor unit Download PDFInfo
- Publication number
- DE102007012938A1 DE102007012938A1 DE102007012938A DE102007012938A DE102007012938A1 DE 102007012938 A1 DE102007012938 A1 DE 102007012938A1 DE 102007012938 A DE102007012938 A DE 102007012938A DE 102007012938 A DE102007012938 A DE 102007012938A DE 102007012938 A1 DE102007012938 A1 DE 102007012938A1
- Authority
- DE
- Germany
- Prior art keywords
- unit
- sensor
- variable
- fastening
- sensor unit
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims description 8
- 238000012806 monitoring device Methods 0.000 title 1
- 238000005259 measurement Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 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
- G01F23/284—Electromagnetic waves
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
-
- 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
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße. Bei der Prozessgröße handelt es sich beispielsweise um den Füllstand, die Dichte, die Viskosität, den pH-Wert oder den Durchfluss eines Mediums. Bei dem Medium handelt es sich beispielsweise um eine Flüssigkeit oder um ein Schüttgut oder allgemein um eine Fluid. Das Medium befindet sich dabei beispielsweise in einem Behälter oder es durchströmt ein Rohr oder ein Rohrsystem.The The invention relates to a device for determination and / or monitoring at least one process variable. at the process variable is For example, it is the level, the density, the viscosity, the pH or the flow of a medium. The medium is, for example to a liquid or a bulk material or generally a fluid. The medium is for example in a container or it flows through a pipe or a pipe system.
In der modernen Prozess- und Automatisierungstechnik gibt es eine Vielzahl von Messgeräten, die der Messung bzw. der Überwachung von einzelnen Prozessgrößen dienen. Hiermit lassen sich beispielsweise Prozesse steuern bzw. überwachen. Um die Qualität der Messung bzw. der Messwerte zu garantieren, ist es von Zeit zu Zeit erforderlich, die Messung der Messgeräte zu überwachen bzw. die Messgeräte zu kalibrieren. In vielen Fällen macht es dies erforderlich, die Messgeräte aus dem Prozess zu entnehmen, wofür die Prozesse gegebenenfalls unterbrochen werden müssen. Dies ist somit gegebenenfalls mit großen Kosten verbunden. Eine Art der Kalibration bzw. der Überwachung der Messung sieht vor, dass die vom zu kalibrierenden Messgerät gemessene Messgröße mit dem Wert verglichen wird, welcher durch einen kalibrierten Referenzsensor erzeugt wird. Ein Verfahren sieht beispielsweise vor, dass eine Messung durch den zu kalibrierenden Sensor vorgenommen wird und dass dieser Sensor dann durch einen Referenzsensor ausgetauscht wird, woran anschließend die beiden gewonnenen Messwerte miteinander verglichen werden. Dies ist jedoch sehr aufwendig.In There is a multitude of modern process and automation technology of measuring instruments, the the measurement or the monitoring of individual process variables. For example, this allows processes to be controlled or monitored. To the quality to guarantee the measurement or the measured values, it is from time to time Time required to monitor the measurement of the measuring instruments or to calibrate the measuring instruments. In many cases Does this make it necessary to remove the meters from the process, for what Processes may need to be interrupted. This is therefore optional with big Costs connected. A kind of calibration or monitoring the measurement provides that the measured by the meter to be calibrated Measured with the Value is compared, which by a calibrated reference sensor is produced. For example, one method provides for a Measurement is made by the sensor to be calibrated and that this sensor is then replaced by a reference sensor will, then what the two obtained measured values are compared with each other. This is very expensive.
Die Aufgabe der Erfindung besteht darin, ein Messgerät vorzuschlagen, welches eine relativ einfache Kalibration während der Anwendung erlaubt.The The object of the invention is to propose a measuring device, which is a relatively easy calibration during the application allowed.
Die Erfindung löst die Aufgabe dadurch, dass mindestens eine Fenstereinheit vorgesehen ist.The Invention solves the task by providing at least one window unit is.
Eine Ausgestaltung sieht vor, dass die Fenstereinheit derartig ausgestaltet ist, dass die Fenstereinheit die Bestimmung der Prozessgröße mittels eines Referenzsensors erlaubt. Durch die Fenstereinheit ist es also möglich, zwei Messungen mit eingebautem Messgerät vorzunehmen, indem die zweite Messung durch einen Referenzsensor, welcher über die Fenstereinheit Zugang zum Prozess hat, stattfindet.A Embodiment provides that the window unit designed in this way is that the window unit using the determination of the process size a reference sensor allowed. So it is through the window unit possible, make two measurements with built-in meter by taking the second measurement through a reference sensor, which through the window unit access to the process takes place.
Eine Ausgestaltung beinhaltet, dass mindestens eine Sensoreinheit zur Bestimmung und/oder Überwachung der Prozessgröße vorgesehen ist, und dass mindestens eine Befestigungseinheit zur Befestigung der Sensoreinheit vorgesehen ist.A Embodiment includes that at least one sensor unit for Determination and / or monitoring the process size provided is, and that at least one fastening unit for attachment the sensor unit is provided.
Eine Ausgestaltung sieht vor, dass die Fenstereinheit derartig ausgestaltet ist, dass die Fenstereinheit die Bestimmung der Prozessgröße mittels des Referenzsensors derartig erlaubt, dass im Wesentlichen eine Messung der Prozessgröße durch die Sensoreinheit unbeeinflusst ist. Durch die Fenstereinheit werden also quasi zwei Messwege für die Messung der Prozessgröße eröffnet.A Embodiment provides that the window unit designed in this way is that the window unit the determination of the process variable by means of Reference sensor allows such that essentially a measurement the process size through the sensor unit is unaffected. Be through the window unit So almost two measurement paths for the measurement of the process variable opens.
Eine Ausgestaltung sieht vor, dass die Fenstereinheit zumindest teilweise in der Sensoreinheit und/oder in der Befestigungseinheit angeordnet ist.A Embodiment provides that the window unit at least partially arranged in the sensor unit and / or in the fastening unit is.
Eine Ausgestaltung beinhaltet, dass die Sensoreinheit mindestens eine Antenne aufweist.A Embodiment includes that the sensor unit at least one Antenna has.
Eine Ausgestaltung sieht vor, dass die Fenstereinheit transparent für Laserlicht ist.A Embodiment provides that the window unit transparent to laser light is.
Eine Ausgestaltung beinhaltet, dass es sich bei der Prozessgröße um den Füllstand eines Mediums in einem Behälter handelt.A Embodiment includes that the process variable is the level a medium in a container is.
Eine Ausgestaltung sieht vor, dass die Sensoreinheit derartig ausgestaltet ist, dass die Sensoreinheit die Prozessgröße mittels des Laufzeitverfahrens bestimmt und/oder überwacht.A Embodiment provides that the sensor unit designed in this way is that the sensor unit the process size by means of the transit time method determined and / or monitored.
Eine Ausgestaltung beinhaltet, dass die Fenstereinheit zumindest im Bereich der Befestigungseinheit Sensoreinheit zumindest dicht gegenüber dem Medium ist. Weiterhin ist die Fenstereinheit vorzugsweise gasdicht bzw. druckfest.A Embodiment includes that the window unit at least in the area the fastening unit sensor unit at least close to the Medium is. Furthermore, the window unit is preferably gas-tight or pressure-resistant.
Die Erfindung wird anhand der nachfolgenden Zeichnungen näher erläutert. Es zeigt:The The invention will be explained in more detail with reference to the following drawings. It shows:
In
der
Die
Vorrichtung besteht dabei aus einer Sensoreinheit
Für die Messgenauigkeit
bzw. für
die Sicherheit der Qualität
der Messungen ist es immer wieder erforderlich, die Messungen mittels
einer Kalibrationsmessung abzusichern. Hierfür wird beispielsweise der mit
dem Messgerät
gemessene Füllstand
mit der Messung eines Referenzsensors verglichen. Dies geschieht
beispielsweise über
einen Laser, welcher hier als Referenzsensor
In
der
Das
erfindungsgemäße Messgerät zeichnet sich
also dadurch aus, dass es im eingebauten Zustand eine Messung vermittels
eines Referenzsensors
- 11
- Mediummedium
- 22
- Behältercontainer
- 33
- Sensoreinheitsensor unit
- 44
- Befestigungseinheitfixing unit
- 55
- Fenstereinheitwindow unit
- 66
- Referenzsensorreference sensor
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007012938A DE102007012938A1 (en) | 2007-03-14 | 2007-03-14 | Process variable e.g. viscosity, determining and/or monitoring device, has window unit permitting determination of variable using reference sensor, sensor unit determining and/or monitoring variable, and fastening unit fastening sensor unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007012938A DE102007012938A1 (en) | 2007-03-14 | 2007-03-14 | Process variable e.g. viscosity, determining and/or monitoring device, has window unit permitting determination of variable using reference sensor, sensor unit determining and/or monitoring variable, and fastening unit fastening sensor unit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007012938A1 true DE102007012938A1 (en) | 2008-09-18 |
Family
ID=39688264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007012938A Withdrawn DE102007012938A1 (en) | 2007-03-14 | 2007-03-14 | Process variable e.g. viscosity, determining and/or monitoring device, has window unit permitting determination of variable using reference sensor, sensor unit determining and/or monitoring variable, and fastening unit fastening sensor unit |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007012938A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014110807A1 (en) * | 2014-07-30 | 2016-02-04 | Endress & Hauser Meßtechnik GmbH & Co. KG | Mobile device for on-site calibration of a contactless level gauge |
DE102014114139A1 (en) * | 2014-09-29 | 2016-03-31 | Endress+Hauser Yamanashi Co., Ltd. | Test device for checking the accuracy of level gauges |
WO2016062341A1 (en) * | 2014-10-22 | 2016-04-28 | Vega Grieshaber Kg | Topology determination of a filling material surface with uniform line scanning |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9409734U1 (en) * | 1994-06-20 | 1994-08-04 | Chd Electronics Gmbh | Level indicator |
DE19934041A1 (en) * | 1999-07-16 | 2001-03-29 | Winfried Schernus | Fill level sensor device for liquid level detection in container, has control and evaluation circuit which senses detuning of resonance frequency of a microwave resonator in response to liquid proximity |
DE202004010531U1 (en) * | 2004-07-06 | 2004-09-09 | Captron Electronic Gmbh | Tank level sensor has light emitting diodes illuminating inside of tank for optical inspection of stirrers and other equipment |
DE10325267A1 (en) * | 2003-06-03 | 2004-12-23 | Endress + Hauser Gmbh + Co. Kg | Arrangement and method for level measurement |
-
2007
- 2007-03-14 DE DE102007012938A patent/DE102007012938A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9409734U1 (en) * | 1994-06-20 | 1994-08-04 | Chd Electronics Gmbh | Level indicator |
DE19934041A1 (en) * | 1999-07-16 | 2001-03-29 | Winfried Schernus | Fill level sensor device for liquid level detection in container, has control and evaluation circuit which senses detuning of resonance frequency of a microwave resonator in response to liquid proximity |
DE10325267A1 (en) * | 2003-06-03 | 2004-12-23 | Endress + Hauser Gmbh + Co. Kg | Arrangement and method for level measurement |
DE202004010531U1 (en) * | 2004-07-06 | 2004-09-09 | Captron Electronic Gmbh | Tank level sensor has light emitting diodes illuminating inside of tank for optical inspection of stirrers and other equipment |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014110807A1 (en) * | 2014-07-30 | 2016-02-04 | Endress & Hauser Meßtechnik GmbH & Co. KG | Mobile device for on-site calibration of a contactless level gauge |
DE102014114139A1 (en) * | 2014-09-29 | 2016-03-31 | Endress+Hauser Yamanashi Co., Ltd. | Test device for checking the accuracy of level gauges |
WO2016062341A1 (en) * | 2014-10-22 | 2016-04-28 | Vega Grieshaber Kg | Topology determination of a filling material surface with uniform line scanning |
US20170309989A1 (en) * | 2014-10-22 | 2017-10-26 | Vega Grieshaber Kg | Topology determination of a filling material surface with uniform line scanning |
US10374284B2 (en) | 2014-10-22 | 2019-08-06 | Vega Grieshaber Kg | Topology determination of a filling material surface with uniform line scanning |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R081 | Change of applicant/patentee |
Owner name: ENDRESS+HAUSER SE+CO. KG, DE Free format text: FORMER OWNER: ENDRESS + HAUSER GMBH + CO. KG, 79689 MAULBURG, DE |
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R082 | Change of representative |
Representative=s name: ANDRES, ANGELIKA, DE Representative=s name: ANDRES, ANGELIKA, DIPL.-PHYS., DE |
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R082 | Change of representative |
Representative=s name: ANDRES, ANGELIKA, DIPL.-PHYS., DE |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |