DE20107112U1 - Device for supplying energy to field devices - Google Patents
Device for supplying energy to field devicesInfo
- Publication number
- DE20107112U1 DE20107112U1 DE20107112U DE20107112U DE20107112U1 DE 20107112 U1 DE20107112 U1 DE 20107112U1 DE 20107112 U DE20107112 U DE 20107112U DE 20107112 U DE20107112 U DE 20107112U DE 20107112 U1 DE20107112 U1 DE 20107112U1
- Authority
- DE
- Germany
- Prior art keywords
- energy
- field
- field device
- field devices
- temperature
- 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.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 claims description 9
- 238000010327 methods by industry Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 12
- 238000004146 energy storage Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 244000309464 bull Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- 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
- G01D21/00—Measuring or testing not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Description
ABB Patent GmbH 20. April 2001ABB Patent GmbH 20 April 2001
Kallstadter Strassei 71700 MS/KieKallstadter Strassei 71700 MS/Kie
68309 Mannheim68309 Mannheim
BeschreibungDescription
Die Erfindung betrifft eine Einrichtung zur Energieversorgung von Feldgeräten in verfahrenstechnischen Anlagen nach dem Oberbegriff des Schutzanspruchs 1.The invention relates to a device for supplying energy to field devices in process engineering plants according to the preamble of claim 1.
Bekannte Feldgeräte sind mittels einer mehradrigen Verbindungsleitung mit einer zentralen Einrichtung verbunden, wobei jedes Feldgerät über die Verbindungsleitung mit elektrischer Energie zu seinem Betrieb versorgt wird und mit der zentralen Einrichtung Daten austauscht.Known field devices are connected to a central facility by means of a multi-core connecting cable, whereby each field device is supplied with electrical energy for its operation via the connecting cable and exchanges data with the central facility.
Komplexe verfahrenstechnische Anlagen sind mit einer Vielzahl derartiger Feldgeräte ausgestattet. Dabei ist das Netz der Verbindungsleitungen für den Betreiber der Anlage ein erheblicher Kostenfaktor und darüber hinaus insbesondere im Zuge von Bauarbeiten Störungen durch Leitungsunterbrechungen ausgesetzt. Bei einer Leitungsunterbrechung ist das angeschlossene Feldgerät sowohl von dem Datenaustausch mit der zentralen Einrichtung abgeschnitten als auch von der Energieversorgung zu seinem Betrieb.Complex process engineering plants are equipped with a large number of such field devices. The network of connecting lines represents a significant cost factor for the plant operator and is also subject to disruptions due to line interruptions, particularly during construction work. If a line is interrupted, the connected field device is cut off from both the exchange of data with the central facility and from the power supply for its operation.
Zwar gelingt es, mit Hilfe von drahtlosen Kommunikationseinrichtungen, die jedem Feldgerät und der zentralen Einrichtung zugeordnet werden, den Datenaustausch unabhängig vom Netz der Verbindungsleitungen aufrechtzuerhalten, soweit die Feldgeräte weiterhin mit Energie versorgt sind. Jedoch sind die Feldgeräte bei Leitungsunterbrechungen von der Energiequelle getrennt.It is possible to maintain data exchange independently of the network of connecting cables using wireless communication devices that are assigned to each field device and the central device, as long as the field devices continue to be supplied with energy. However, the field devices are disconnected from the energy source if the lines are interrupted.
71700 MS/Kie -2- 20.04.200171700 MS/Kie -2- 20.04.2001
Der Erfindung liegt daher die Aufgabe zugrunde, die Nachteile des Standes der Technik zu überwinden und Mittel anzugeben, die eine vom Netz der Verbindungsleitungen unabhängige Energieversorgung der Feldgeräte gestattet.The invention is therefore based on the object of overcoming the disadvantages of the prior art and of providing means which allow a power supply of the field devices independent of the network of connecting lines.
Erfindungsgemäß wird diese Aufgabe mit den Mitteln des Schutzanspruchs 1 gelöst. Eine vorteilhafte Ausgestaltung der Erfindung ist in dem rückbezogenen Anspruch genannt.According to the invention, this object is achieved by the means of claim 1. An advantageous embodiment of the invention is mentioned in the dependent claim.
Die Erfindung geht davon aus, dass der Leistungsbedarf zur Versorgung derzeitiger Feldgeräte durch zunehmende Integration auf einige wenige Milliwatt reduziert ist.The invention assumes that the power requirement for supplying current field devices is reduced to a few milliwatts through increasing integration.
Der Erfindung liegt der Gedanke zugrunde, prozessual in der verfahrenstechnischen Anlage vorhandene, nicht-elektrische Energie in elektrische Energie umzusetzen und das Feldgerät mit dieser elektrischen Energie zu versorgen.The invention is based on the idea of converting non-electrical energy present in the process engineering plant into electrical energy and supplying the field device with this electrical energy.
Erfindungsgemäß ist vorgesehen, das Feldgerät mit einem thermoelektrischen Wandler auszustatten, mit dem die physikalische Größe Temperaturdifferenz zwischen zwei Medien verschiedener Temperatur in einen elektrischen Strom proportional zur Temperaturdifferenz umgesetzt wird.According to the invention, the field device is equipped with a thermoelectric converter with which the physical quantity temperature difference between two media of different temperatures is converted into an electrical current proportional to the temperature difference.
Nach einem weiteren Merkmal der Erfindung ist das Feldgerät mit einem Speicher elektrischer Energie ausgestattet.According to a further feature of the invention, the field device is equipped with a storage device for electrical energy.
Die Erfindung macht sich zu Nutze, dass in Abhängigkeit von der Art der verfahrenstechnischen Anlage mindestens eine Quelle nicht-elektrischer Primärenergie dauerhaft zur Verfügung steht. Dabei wird unter dauerhafter Verfügbarkeit auch diskontinuierliche aber periodische Verfügbarkeit verstanden.The invention makes use of the fact that, depending on the type of process plant, at least one source of non-electrical primary energy is permanently available. Permanent availability is also understood to mean discontinuous but periodic availability.
Bei diskontinuierlicher Verfügbarkeit der nicht-elektrischen Primärenergie wird die diskontinuierlich erzeugte elektrische Energie zur Versorgung des Feldgeräts während der Unterbrechung des Zuflusses der nicht-elektrischen Primärenergie im Feldgerät gespeichert. Damit ist die kontinuierliche unterbrechungsfreie Versorgung des Feldgeräts mit elektrischer Energie zu seinem Betrieb gewährleistet.If the non-electrical primary energy is available intermittently, the intermittently generated electrical energy is stored in the field device to supply the field device during the interruption of the flow of non-electrical primary energy. This ensures the continuous, uninterrupted supply of electrical energy to the field device for its operation.
71700 MS/Kie71700 MS/Kie
20.04.200120.04.2001
Vorteilhafterweise kommt die Energieversorgung des Feldgeräts ohne elektrische Verbindungsleitungen von und zu einer zentralen Quelle elektrischer Energie aus. Die Verfügbarkeit der Feldgeräts ist damit unabhängig von Störungen durch Leitungsunterbrechungen. Darüber hinaus ist der erhebliche materielle Aufwand für ein Netz von elektrischen Verbindungsleitungen und dessen Wartung und Pflege insgesamt verzichtbar.Advantageously, the power supply of the field device does not require electrical connecting cables to and from a central source of electrical energy. The availability of the field device is therefore independent of disruptions caused by line interruptions. In addition, the considerable material expenditure for a network of electrical connecting cables and its maintenance and care is completely dispensable.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen näher erläutert. Dazu ist in Figur 1 eine Prinzipdarstellung einer Einrichtung zur Energieversorgung von Feldgeräten 1 in verfahrenstechnischen Anlagen gezeigt.The invention is explained in more detail below using exemplary embodiments. Figure 1 shows a schematic diagram of a device for supplying energy to field devices 1 in process engineering systems.
In einem ersten Ausführungsbeispiel ist das Feldgerät 1 ein Messwertaufnehmer für die Temperatur eines in einer Rohrleitung 2 geführten Prozessmediums, das in Figur 1 durch einen Pfeil 3 dargestellt ist. Die Temperatur des Prozessmediums 3 unterscheidet sich signifikant von der Umgebungstemperatur.In a first embodiment, the field device 1 is a measuring sensor for the temperature of a process medium guided in a pipeline 2, which is shown in Figure 1 by an arrow 3. The temperature of the process medium 3 differs significantly from the ambient temperature.
Das Feldgerät 1 weist einen Messumformer 11 auf, an den ein Temperaturfühler 13 angeschlossen ist, der durch die Wand der Rohrleitung 2 in das Prozessmediums 3 hineinragt und von diesem umspült wird. Darüber hinaus ist das Feldgerät 1 mit einer Kommunikationseinrichtung 12 zum Datenaustausch mit einer nicht dargestellten zentralen Einrichtung ausgestattet. Die Kommunikationseinrichtung 12 ist mit dem Messumformer 11 verbunden und zur drahtlosen Kommunikation mit der zentralen Einrichtung geeignet. Dazu weist die Kommunikationseinrichtung 12 eine Antenne 121 auf.The field device 1 has a measuring transducer 11 to which a temperature sensor 13 is connected, which extends through the wall of the pipeline 2 into the process medium 3 and is surrounded by it. In addition, the field device 1 is equipped with a communication device 12 for exchanging data with a central device (not shown). The communication device 12 is connected to the measuring transducer 11 and is suitable for wireless communication with the central device. For this purpose, the communication device 12 has an antenna 121.
Der Messumformer 11 und die Kommunikationseinrichtung 12 weisen in Figur 1 durch Kreuze gekennzeichnete Anschlüsse zur Stromversorgung auf.The measuring transducer 11 and the communication device 12 have connections for the power supply, which are marked by crosses in Figure 1.
Das Feldgerät 1 ist mit einem thermoelektrischen Wandler 14 ausgestattet, mit dem die physikalische Größe Temperaturdifferenz zwischen zwei Medien verschiedener Temperatur in einen elektrischen Strom proportional zur Temperaturdifferenz umgesetzt wird.The field device 1 is equipped with a thermoelectric converter 14, with which the physical quantity temperature difference between two media of different temperatures is converted into an electrical current proportional to the temperature difference.
Der thermoelektrischen Wandler 14 weist eine erste Fühlstelle 141 und eine zweite Fühlstelle 142 auf. Die erste Fühlstelle 141 liegt auf Umgebungstemperatur. DabeiThe thermoelectric converter 14 has a first sensing point 141 and a second sensing point 142. The first sensing point 141 is at ambient temperature.
71700 MS/Kie -4- 20.04.200171700 MS/Kie -4- 20.04.2001
kann die erste Fühlstelle 141 innerhalb oder außerhalb des Feldgeräts 1 angeordnet sein. Die zweite Fühlstelle 142 ragt wie der Temperaturfühler 13 durch die Wand der Rohrleitung 2 in das Prozessmediums 3 hinein und wird von diesem umspült. Dabei befindet sich die zweite Fühlstelle 142 auf dem Temperaturniveau des Prozessmediums 3, das sich signifikant von der Umgebungstemperatur unterscheidet.the first sensing point 141 can be arranged inside or outside the field device 1. The second sensing point 142, like the temperature sensor 13, extends through the wall of the pipeline 2 into the process medium 3 and is surrounded by it. The second sensing point 142 is at the temperature level of the process medium 3, which differs significantly from the ambient temperature.
Die erste und zweite Fühlstelle 141 und 142 sind als Thermoelemente (richtig so???) ausgeführt, die in Reihe geschaltet sind. In Abhängigkeit von der Temperaturdifferenz zwischen der Umgebungstemperatur an der ersten Fühlstelle 141 und der Temperatur des Prozessmediums 3 an der zweiten Fühlstelle 142 und der Materialauswahl der Thermoelemente stellt sich an den freien Anschlüssen des thermoelektrischen Wandlers 14 eine Thermospannung ein, die zur Energieversorgung des Feldgeräts 1 geeignet ist. Dazu sind die freien Anschlüsse des thermoelektrischen Wandlers 14 mit den durch Kreuze gekennzeichneten Anschlüssen zur Stromversorgung des Messumformers 11 und der Kommunikationseinrichtung 12 verbunden.The first and second sensing points 141 and 142 are designed as thermocouples (is that right???) that are connected in series. Depending on the temperature difference between the ambient temperature at the first sensing point 141 and the temperature of the process medium 3 at the second sensing point 142 and the material selection of the thermocouples, a thermoelectric voltage is generated at the free terminals of the thermoelectric converter 14 that is suitable for supplying power to the field device 1. For this purpose, the free terminals of the thermoelectric converter 14 are connected to the terminals marked with crosses for supplying power to the measuring transducer 11 and the communication device 12 .
Aus verfahrenstechnischen Gründen wird die Temperatur des Prozessmediums 3 auf einem im wesentlichen konstanten Niveau gehalten. Damit steht an den freien Anschlüssen des thermoelektrischen Wandlers 14 permanent eine im wesentlichen konstante Thermospannung zur Energieversorgung des Feldgeräts 1 zur Verfügung.For process engineering reasons, the temperature of the process medium 3 is kept at an essentially constant level. This means that an essentially constant thermoelectric voltage is permanently available at the free connections of the thermoelectric converter 14 to supply energy to the field device 1.
Darüber hinaus ist das Feldgerät 1 mit einem Energiespeicher 15 ausgestattet. Der Energiespeicher 15 ist parallel zu den freien Anschlüssen des thermoelektrischen Wandlers 14 geschaltet. Dabei kann vorgesehen sein, den Energiespeicher 15 als Akkumulator auszuführen. In einer alternativen Ausgestaltung kann der Energiespeicher 15 als hochkapazitiver, verlustarmer Kondensator ausgeführt sein.In addition, the field device 1 is equipped with an energy storage device 15. The energy storage device 15 is connected in parallel to the free connections of the thermoelectric converter 14. It can be provided that the energy storage device 15 is designed as an accumulator. In an alternative embodiment, the energy storage device 15 can be designed as a high-capacity, low-loss capacitor.
Insbesondere für Feldgeräte 1 mit einem Messwertaufnehmer für die Temperatur, die regelmäßig diskontinuierlich gemessen wird, ist durch den Energiespeicher 15 temporär eine höhere Energie verfügbar als kontinuierlich durch den thermoelektrischen Wandler 14 zur Verfügung gestellt wird.In particular, for field devices 1 with a temperature sensor that is regularly measured discontinuously, a higher energy is temporarily available through the energy storage device 15 than is continuously provided by the thermoelectric converter 14 .
In Figur 2 ist unter Verwendung gleicher Bezugszeichen für gleiche Mittel ein zweites Ausführungsbeispiel dargestellt. Dabei ist das Feldgerät 1 ein Messwertaufnehmer für den Durchfluss eines Prozessmediums, das in Figur 2 durch einen Pfeil 3 dargestelltA second embodiment is shown in Figure 2 using the same reference numerals for the same means. The field device 1 is a measuring sensor for the flow of a process medium, which is shown in Figure 2 by an arrow 3.
71700 MS/Kie -5- 20.04.200171700 MS/Kie -5- 20.04.2001
ist, durch eine Rohrleitung 2. Die Temperatur des Prozessmediums 3 unterscheidet sich signifikant von der Umgebungstemperatur.through a pipeline 2. The temperature of the process medium 3 differs significantly from the ambient temperature.
Dazu ist an den Messumformer 11 ein Durchflussfühler 16 angeschlossen. Je nach Bauart des Durchflussfühlers 16 ragt dieser, wie in Figur 2 dargestellt, durch die Wand der Rohrleitung 2 in das Prozessmediums 3 hinein und wird von diesem umspült oder ist in die Wand der Rohrleitung 2 integriert.For this purpose, a flow sensor 16 is connected to the measuring transducer 11. Depending on the design of the flow sensor 16, it protrudes, as shown in Figure 2, through the wall of the pipeline 2 into the process medium 3 and is washed around by it or is integrated into the wall of the pipeline 2.
Der weitere Aufbau des Feldgeräts 1 und dabei insbesondere der thermoelektrische Wandler 14 und der Energiespeicher 15 ist identisch mit dem ersten Ausführungsbeispiel.The further structure of the field device 1 and in particular the thermoelectric converter 14 and the energy storage device 15 is identical to the first embodiment.
«· · » « ft · ft ft«· · » « ft · ft ft
• ft·· »ft··** ft * ·• ft·· »ft··** ft * ·
ft ft · ft ft ft * · ft * · ftftfft ft · ft ft ft * · ft * · ftftf
71700 MS/Kie -6- 20.04.200171700 MS/Kie -6- 20.04.2001
1 Feldgerät1 field device
11 Messumformer11 Transducers
12 Kommunikationseinrichtung 121 Antenne12 Communication device 121 Antenna
13 Temperaturfühler13 Temperature sensors
14 thermoelektrischer Wandler 141, 142 Fühlstelle14 thermoelectric converter 141, 142 sensing point
15 Energiespeicher15 Energy storage
16 Durchflussfühler16 flow sensors
2 Rohrleitung2 Pipeline
3 Prozessmedium3 Process medium
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20107112U DE20107112U1 (en) | 2001-04-25 | 2001-04-25 | Device for supplying energy to field devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20107112U DE20107112U1 (en) | 2001-04-25 | 2001-04-25 | Device for supplying energy to field devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE20107112U1 true DE20107112U1 (en) | 2001-07-05 |
Family
ID=7956178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE20107112U Expired - Lifetime DE20107112U1 (en) | 2001-04-25 | 2001-04-25 | Device for supplying energy to field devices |
Country Status (1)
| Country | Link |
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| DE (1) | DE20107112U1 (en) |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004082099A1 (en) * | 2003-03-12 | 2004-09-23 | Abb Research Ltd. | Arrangement and method for continuously supplying electric power to a field device in a technical system |
| WO2005086331A2 (en) * | 2004-03-02 | 2005-09-15 | Rosemount, Inc. | Process device with improved power generation |
| EP1729195A1 (en) * | 2005-06-03 | 2006-12-06 | Danfoss A/S | Thermostat (in particular for radiator for room heating) comprising thermoelectric power supply |
| DE102005043771A1 (en) * | 2005-09-13 | 2007-03-15 | Endress + Hauser Flowtec Ag | Method for power supply of a field device of automation technology |
| DE102005059759A1 (en) * | 2005-12-14 | 2007-06-28 | Siemens Ag | Energy generator as alarm sensor |
| DE102006014444A1 (en) * | 2006-03-29 | 2007-10-04 | Abb Patent Gmbh | Energy supplying arrangement for field device, has thermoelectric transformer arranged in separate housing and in pipeline and transferring electrical energy to field device via electrical lines |
| DE102004049724B4 (en) * | 2004-10-11 | 2008-02-21 | Sew-Eurodrive Gmbh & Co. Kg | Sensor, drive component and drive |
| DE102007017461A1 (en) * | 2007-04-10 | 2008-10-16 | Micropelt Gmbh | Power supply module for electrical device i.e. electrical measuring device, has electronic component provided for stabilization of voltage produced by thermal generator and cooperating with thermal generator |
| DE102008033306A1 (en) * | 2008-07-16 | 2010-01-21 | Ramitek Gmbh | Operation monitoring system for monitoring mechanical rotary driven machine, comprises drive shaft, which produces energy for supplying operation monitoring system |
| US7913566B2 (en) | 2006-05-23 | 2011-03-29 | Rosemount Inc. | Industrial process device utilizing magnetic induction |
| US7956738B2 (en) | 2004-06-28 | 2011-06-07 | Rosemount Inc. | Process field device with radio frequency communication |
| US7977924B2 (en) | 2008-11-03 | 2011-07-12 | Rosemount Inc. | Industrial process power scavenging device and method of deriving process device power from an industrial process |
| DE102010014253A1 (en) * | 2010-04-08 | 2011-10-13 | Martin Meyer | Device for use with image acquisition unit for reading meter reading display of meter, particularly gas-, current- or water meter, comprises image acquisition unit which is continuously charged outside image acquisition process |
| US8049361B2 (en) | 2008-06-17 | 2011-11-01 | Rosemount Inc. | RF adapter for field device with loop current bypass |
| US8145180B2 (en) | 2004-05-21 | 2012-03-27 | Rosemount Inc. | Power generation for process devices |
| US8160535B2 (en) | 2004-06-28 | 2012-04-17 | Rosemount Inc. | RF adapter for field device |
| US8188359B2 (en) | 2006-09-28 | 2012-05-29 | Rosemount Inc. | Thermoelectric generator assembly for field process devices |
| DE202012011037U1 (en) | 2012-11-16 | 2013-02-21 | Abb Technology Ag | Power supply arrangement |
| CN103090984A (en) * | 2011-10-27 | 2013-05-08 | 中国钢铁股份有限公司 | Steel barrel wireless temperature measurement system free from external electricity and temperature measurement method thereof |
| DE102012003107A1 (en) | 2012-02-16 | 2013-08-22 | Abb Technology Ag | Thermoelectric generator arrangement for network independent power supply, has main heat conducting element and auxiliary heat conducting element that are arranged parallel by measuring rod to protect against mechanical load |
| DE102013100078A1 (en) | 2012-02-24 | 2013-08-29 | WIMTEC Elektronische Steuerungs- und Meßgeräte GmbH | Sanitary fitting for e.g. washstand, has two generators that are designed as thermal generator, solar cell, photo diode, turbine, piezoelectric energy harvester, radio frequency energy harvester or sound energy harvester |
| US8538560B2 (en) | 2004-04-29 | 2013-09-17 | Rosemount Inc. | Wireless power and communication unit for process field devices |
| US8626087B2 (en) | 2009-06-16 | 2014-01-07 | Rosemount Inc. | Wire harness for field devices used in a hazardous locations |
| US8694060B2 (en) | 2008-06-17 | 2014-04-08 | Rosemount Inc. | Form factor and electromagnetic interference protection for process device wireless adapters |
| US8787848B2 (en) | 2004-06-28 | 2014-07-22 | Rosemount Inc. | RF adapter for field device with low voltage intrinsic safety clamping |
| US8847571B2 (en) | 2008-06-17 | 2014-09-30 | Rosemount Inc. | RF adapter for field device with variable voltage drop |
| US8929948B2 (en) | 2008-06-17 | 2015-01-06 | Rosemount Inc. | Wireless communication adapter for field devices |
| US9184364B2 (en) | 2005-03-02 | 2015-11-10 | Rosemount Inc. | Pipeline thermoelectric generator assembly |
| DE102014012086A1 (en) * | 2014-08-14 | 2016-02-18 | Abb Technology Ag | Apply temperature sensor device for autonomously measuring the temperature of a container |
| US9310794B2 (en) | 2011-10-27 | 2016-04-12 | Rosemount Inc. | Power supply for industrial process field device |
| US9674976B2 (en) | 2009-06-16 | 2017-06-06 | Rosemount Inc. | Wireless process communication adapter with improved encapsulation |
| CN110196119A (en) * | 2019-07-01 | 2019-09-03 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Cable temperature on-line monitoring system |
| US10761524B2 (en) | 2010-08-12 | 2020-09-01 | Rosemount Inc. | Wireless adapter with process diagnostics |
-
2001
- 2001-04-25 DE DE20107112U patent/DE20107112U1/en not_active Expired - Lifetime
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004082099A1 (en) * | 2003-03-12 | 2004-09-23 | Abb Research Ltd. | Arrangement and method for continuously supplying electric power to a field device in a technical system |
| CN1954138B (en) * | 2004-03-02 | 2011-02-16 | 罗斯蒙德公司 | Process device with improved power generation |
| WO2005086331A2 (en) * | 2004-03-02 | 2005-09-15 | Rosemount, Inc. | Process device with improved power generation |
| WO2005086331A3 (en) * | 2004-03-02 | 2006-09-21 | Rosemount Inc | Process device with improved power generation |
| US7957708B2 (en) | 2004-03-02 | 2011-06-07 | Rosemount Inc. | Process device with improved power generation |
| US8538560B2 (en) | 2004-04-29 | 2013-09-17 | Rosemount Inc. | Wireless power and communication unit for process field devices |
| US8145180B2 (en) | 2004-05-21 | 2012-03-27 | Rosemount Inc. | Power generation for process devices |
| US8787848B2 (en) | 2004-06-28 | 2014-07-22 | Rosemount Inc. | RF adapter for field device with low voltage intrinsic safety clamping |
| US8160535B2 (en) | 2004-06-28 | 2012-04-17 | Rosemount Inc. | RF adapter for field device |
| US7956738B2 (en) | 2004-06-28 | 2011-06-07 | Rosemount Inc. | Process field device with radio frequency communication |
| DE102004049724B4 (en) * | 2004-10-11 | 2008-02-21 | Sew-Eurodrive Gmbh & Co. Kg | Sensor, drive component and drive |
| US9184364B2 (en) | 2005-03-02 | 2015-11-10 | Rosemount Inc. | Pipeline thermoelectric generator assembly |
| CN100422617C (en) * | 2005-06-03 | 2008-10-01 | 丹福斯有限公司 | Heat exchanger valve-control cap, in particular heating body valve-thermostat cap |
| DE102005025501C5 (en) * | 2005-06-03 | 2010-10-21 | Danfoss A/S | Heat exchanger valve control attachment, in particular radiator valve thermostatic attachment |
| EP1729195A1 (en) * | 2005-06-03 | 2006-12-06 | Danfoss A/S | Thermostat (in particular for radiator for room heating) comprising thermoelectric power supply |
| DE102005043771A1 (en) * | 2005-09-13 | 2007-03-15 | Endress + Hauser Flowtec Ag | Method for power supply of a field device of automation technology |
| DE102005059759A1 (en) * | 2005-12-14 | 2007-06-28 | Siemens Ag | Energy generator as alarm sensor |
| DE202006020838U1 (en) | 2006-03-29 | 2010-06-24 | Abb Ag | Device for supplying energy to field devices |
| DE102006014444A1 (en) * | 2006-03-29 | 2007-10-04 | Abb Patent Gmbh | Energy supplying arrangement for field device, has thermoelectric transformer arranged in separate housing and in pipeline and transferring electrical energy to field device via electrical lines |
| US7913566B2 (en) | 2006-05-23 | 2011-03-29 | Rosemount Inc. | Industrial process device utilizing magnetic induction |
| US8188359B2 (en) | 2006-09-28 | 2012-05-29 | Rosemount Inc. | Thermoelectric generator assembly for field process devices |
| DE102007017461B4 (en) * | 2007-04-10 | 2014-04-17 | Micropelt Gmbh | Device with an electrical device and a module for supplying power to the electrical device |
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