EP2714257B1 - Stirring device comprising a stirring tool and a drive motor - Google Patents
Stirring device comprising a stirring tool and a drive motor Download PDFInfo
- Publication number
- EP2714257B1 EP2714257B1 EP12712957.5A EP12712957A EP2714257B1 EP 2714257 B1 EP2714257 B1 EP 2714257B1 EP 12712957 A EP12712957 A EP 12712957A EP 2714257 B1 EP2714257 B1 EP 2714257B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive motor
- sensor
- stirring
- stirring device
- imbalance
- 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.)
- Active
Links
- 238000003756 stirring Methods 0.000 title claims description 30
- 230000001133 acceleration Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
- B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/86—Mixing heads comprising a driven stirrer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/212—Measuring of the driving system data, e.g. torque, speed or power data
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2214—Speed during the operation
- B01F35/22142—Speed of the mixing device during the operation
- B01F35/221422—Speed of rotation of the mixing axis, stirrer or receptacle during the operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/60—Safety arrangements
- B01F35/605—Safety devices concerning the operation of the mixer
Definitions
- the invention relates to a stirring device according to the preamble of claim 1.
- a stirring device is known from EP 1835559 A1 known.
- stirrers are also from the GB 2122396 A . US 6155113 A . US 4142804 A . EP 0124383 A1 and US 4606648 A known. Above all, such stirrers for laboratory use are often attached to a tripod, but such stirrers are also known with another associated holder or storage.
- the invention provides to propose a stirring device according to claim 1.
- the sensor is arranged on a control board serving for the control. Thereby, the sensor can be directly included in the corresponding circuit and connected to this.
- an expedient embodiment may be that the unbalance-responsive sensor is an acceleration sensor.
- Acceleration sensors are known per se and can be purchased inexpensively and mounted in a simple manner on or in the stirrer.
- the senor is provided with an audible and / or optical display or signaling device or controls such.
- the user of the mixer can be warned acoustically or visually, if too much imbalance should occur.
- the unbalance-responsive sensor is connected to the control of the drive motor and changes the speed of the drive motor when a limit value is exceeded, namely reduced or increased, or switches off the drive motor.
- An expedient embodiment, in particular of the sensor, can provide that it is piezobased or inductively formed with a plunger coil or by means of a deflectable mass or by means of strain gauges. Sensors designed in this way have proved useful in detecting imbalances or vibrations, so that a corresponding use for the stirring device according to the invention represents an inexpensive solution.
- An agitator is intended to be stirred with a stirring tool that can be introduced into a mass or liquid.
- the stirring tool can be coupled with a chuck 2, which in turn is connected via a shaft 3 with a drive motor 4, so that after inserting a stirring tool in the chuck 2 by switching this drive motor 4 can be stirred.
- the drive motor 4 is housed in a housing 5 enclosing it, on which outside an attachment point 6 is provided for fixing the stirring device 1 in the position of use. It can be seen in the embodiment on the rear wall 7 of the housing 5 as an attachment point 6 a provided with a fastening screw 8 console 9, which allows plugging the mixer 1 with this attachment point 6 on a horizontal arm 61 of a tripod.
- an unbalance responsive sensor 11 or a vibration sensor 11 is provided on an arranged in the housing 5 of the stirring device 1 printed circuit board 10.
- This is inventively arranged at the for the control or regulation of the drive motor 4.
- this can be arranged on a serving for the power supply of the drive motor 4 circuit board 10 and integrated into the circuit.
- the sensor 11 may be piezobased or inductively formed with a plunger coil or by means of a deflectable mass or by means of strain gauges and, for example, be commercially available. It should be mentioned that, if appropriate, more than one sensor 11 could also be provided.
- the stirrer 1 with a stir-in to be stirred mass or liquid agitator, with a stirring tool driving drive motor 4, with a drive motor 4 enclosing the housing 5 and with an attachment point 6 for fixing the stirrer 1 in the use position has at least one unbalance responsive sensor 11, which is preferably connected to the control or regulation of the drive motor 4 or interconnected and unwanted or dangerous vibrations or vibrations Turn off the drive motor 4 or change its speed.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Description
Die Erfindung betrifft ein Rührgerät gemäß dem Oberbegriff von Anspruch 1. Ein derartiges Rührgerät ist aus der
Derartige Rührgeräte sind auch aus der
Häufig ist die aus dem Gehäuse des Rührgerätes austretende Welle des Rührwerkzeugs relativ lang und das Rührwerkzeug ist in der Regel fliegend gelagert. Dies kann je nach Rührgut und zu rührender Masse und je nach Fertigungstoleranzen zu Vibrationen oder zu einer Unwucht an den rotierenden Teilen und insbesondere auch an dem Rührwerkzeug führen, was vor allem bei relativ langen Wellen oder Rührschäften vor allem dann gefährlich werden kann, wenn das Rührwerkzeug in ein Glasgefäß eintaucht. Durch Unwucht kann es dazu kommen, dass das Glasgefäß von dem Rührwerkzeug innenseitig berührt und gegebenenfalls sogar zerstört wird.Often the emerging from the housing of the agitator shaft of the stirring tool is relatively long and the stirring tool is usually stored on the fly. Depending on the material to be stirred and the mass to be stirred and the manufacturing tolerances, this can lead to vibrations or imbalance on the rotating parts and, in particular, on the stirring tool, which can be dangerous especially in the case of relatively long shafts or stirring shafts, especially if the stirring tool immersed in a glass jar. Imbalance can cause the glass vessel to be touched on the inside by the stirring tool and possibly even destroyed.
Es besteht deshalb die Aufgabe, ein Rührgerät der eingangs definierten Art zu schaffen, bei welchem die Gefahr einer Beschädigung oder Zerstörung von an dem Rührvorgang beteiligten Teilen vermindert oder vermieden wird.There is therefore the object to provide a stirrer of the type defined, in which the risk of damage or destruction of parts involved in the stirring parts is reduced or avoided.
Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, ein Rührgerät gemäß Anspruch 1 vorzuschlagen.To solve this problem, the invention provides to propose a stirring device according to claim 1.
Dadurch ist es möglich, an dem Rührgerät auftretende Vibrationen oder Unwucht rechtzeitig zu erkennen und Abhilfe vorzusehen. Der Sensor ist an einer für die Steuerung dienenden Leiterplatte angeordnet. Dadurch kann der Sensor unmittelbar in den entsprechenden Stromkreis einbezogen und an diesen angeschlossen sein.This makes it possible to detect occurring vibrations or imbalance on the mixer in good time and provide a remedy. The sensor is arranged on a control board serving for the control. Thereby, the sensor can be directly included in the corresponding circuit and connected to this.
Eine zweckmäßige Ausführungsform kann dabei darin bestehen, dass der auf Unwucht ansprechende Sensor ein Beschleunigungssensor ist. Beschleunigungssensoren sind an sich bekannt und können preiswert bezogen und auf einfache Weise an oder in dem Rührgerät angebracht werden.An expedient embodiment may be that the unbalance-responsive sensor is an acceleration sensor. Acceleration sensors are known per se and can be purchased inexpensively and mounted in a simple manner on or in the stirrer.
Es kann zweckmäßig sein, wenn der Sensor mit einer akustischen und/oder optischen Anzeige- oder Signaleinrichtung versehen ist oder eine solche ansteuert. Somit kann der Benutzer des Rührgerätes akustisch oder optisch gewarnt werden, wenn eine zu große Unwucht auftreten sollte.It may be expedient if the sensor is provided with an audible and / or optical display or signaling device or controls such. Thus, the user of the mixer can be warned acoustically or visually, if too much imbalance should occur.
Besonders günstig ist es, wenn der auf Unwucht ansprechende Sensor mit der Steuerung des Antriebsmotors verbunden ist und bei Überschreiten eines Grenzwertes die Drehzahl des Antriebsmotors ändert, nämlich vermindert oder erhöht, oder den Antriebsmotor abschaltet. Somit kann durch eine derartige Ausgestaltung eine automatische Verhinderung oder auch Beseitigung von Schäden durch Unwucht erzielt werden.It is particularly advantageous if the unbalance-responsive sensor is connected to the control of the drive motor and changes the speed of the drive motor when a limit value is exceeded, namely reduced or increased, or switches off the drive motor. Thus, by such a configuration, an automatic prevention or elimination of damage can be achieved by imbalance.
Eine zweckmäßige Ausführung insbesondere des Sensors kann vorsehen, dass dieser piezobasiert oder induktiv mit Tauchspule oder mittels auslenkbarer Masse oder mittels Dehnmessstreifen ausgebildet ist. Derartig gestaltete Sensoren haben sich bei der Erkennung von Unwucht oder von Vibrationen bewährt, so dass eine entsprechende Verwendung für das erfindungsgemäße Rührgerät eine preiswerte Lösung darstellt.An expedient embodiment, in particular of the sensor, can provide that it is piezobased or inductively formed with a plunger coil or by means of a deflectable mass or by means of strain gauges. Sensors designed in this way have proved useful in detecting imbalances or vibrations, so that a corresponding use for the stirring device according to the invention represents an inexpensive solution.
Vor allem bei Kombination einzelner oder mehrerer der vorbeschriebenen Merkmale und Maßnahmen ergibt sich ein Rührgerät, bei welchem die Folgen von Vibrationen oder von Unwucht rechtzeitig erkannt und dadurch gemildert oder vermieden werden können.Especially when combining one or more of the features and measures described above results in a stirrer in which the consequences of vibration or imbalance can be detected in good time and thereby mitigated or avoided.
Nachstehend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher beschrieben. Es zeigt in zum Teil schematisierter Darstellung:
- Fig. 1
- eine Vorderansicht,
- Fig. 2
- eine teilweise im Längsschnitt gehaltene Seitenansicht,
- Fig. 3
- eine Rückansicht und
- Fig. 4
- eine Draufsicht eines erfindungsgemäßen Rührgeräts mit einem ein nicht dargestelltes beziehungsweise nicht angekuppeltes Rührwerkzeug antreibenden Antriebsmotor.
- Fig. 1
- a front view,
- Fig. 2
- a partially longitudinal sectioned side view,
- Fig. 3
- a rear view and
- Fig. 4
- a top view of a stirring device according to the invention with a not shown or not hitched agitator driving drive motor.
Ein im Ganzen mit 1 bezeichnetes Rührgerät ist dazu vorgesehen, mit einem in eine Masse oder Flüssigkeit einbringbaren Rührwerkzeug diese zu rühren. Das Rührwerkzeug ist dabei mit einem Spannfutter 2 kuppelbar, welches seinerseits über eine Welle 3 mit einem Antriebsmotor 4 verbunden ist, so dass nach dem Einsetzen eines Rührwerkzeugs in das Spannfutter 2 durch Einschalten dieses Antriebsmotors 4 gerührt werden kann.An agitator, generally designated 1, is intended to be stirred with a stirring tool that can be introduced into a mass or liquid. The stirring tool can be coupled with a
Der Antriebsmotor 4 ist in einem ihn umschließenden Gehäuse 5 untergebracht, an welchem außenseitig eine Befestigungsstelle 6 zum Festlegen des Rührgeräts 1 in Gebrauchsstellung vorgesehen ist. Man erkennt im Ausführungsbeispiel an der Rückwand 7 des Gehäuses 5 als Befestigungsstelle 6 eine mit einer Befestigungsschraube 8 versehene Konsole 9, die ein Aufstecken des Rührgerätes 1 mit dieser Befestigungsstelle 6 auf einen horizontalen Ausleger 61 eines Stativs ermöglicht.The
Vor allem wenn eine relativ lange Rührwerkswelle an dem Spannfutter 2 befestigt wird und/oder wenn relativ großzügige Fertigungstoleranzen vorliegen, kann es zu einer Unwucht des Rührwerkzeugs und seiner Welle und dadurch zu Schwingungen und Vibrationen an und in dem Rührgerät 1 kommen.Especially if a relatively long agitator shaft on the Chuck 2 is attached and / or if there are relatively large manufacturing tolerances, it can lead to an imbalance of the stirring tool and its shaft and thereby vibrations and vibrations on and in the mixer 1.
Um solche unerwünschten Erscheinungen rechtzeitig erkennen zu können, ist gemäß
An der Rückwand 7 erkennt man noch eine Schnittstelle 12 und ein Kabel 13 für die Energie- oder Stromzufuhr, und ferner innenseitig Leitungen 14 zu der Leiterplatte 10.On the
Der Sensor 11 kann piezobasiert oder induktiv mit Tauchspule oder mittels auslenkbarer Masse oder mittels Dehnmessstreifen ausgebildet und beispielsweise handelsüblich sein. Es sei noch erwähnt, dass gegebenenfalls auch mehr als ein Sensor 11 vorgesehen sein könnte.The sensor 11 may be piezobased or inductively formed with a plunger coil or by means of a deflectable mass or by means of strain gauges and, for example, be commercially available. It should be mentioned that, if appropriate, more than one sensor 11 could also be provided.
Das Rührgerät 1 mit einem in eine zu rührende Masse oder Flüssigkeit einbringbaren Rührwerkzeug, mit einem das Rührwerkzeug antreibenden Antriebsmotor 4, mit einem den Antriebsmotor 4 umschließenden Gehäuse 5 und mit einer Befestigungsstelle 6 zum Festlegen des Rührgeräts 1 in Gebrauchsstellung weist wenigstens einen auf Unwucht ansprechenden Sensor 11 auf, der bevorzugt mit der Steuerung oder der Regelung des Antriebsmotors 4 verbunden oder verschaltet ist und bei unerwünschten oder gefährlichen Schwingungen oder Vibrationen den Antriebsmotor 4 ausschalten oder seine Drehzahl verändern kann.The stirrer 1 with a stir-in to be stirred mass or liquid agitator, with a stirring tool
Claims (5)
- Stirring device (1) having a stirring tool which can be introduced into a mass or liquid to be stirred, having a drive motor (4) driving the stirring tool, having a housing surrounding the drive motor (4), and having a sensor (11) responding to imbalance, characterised in that the stirring device (1) has a fastening point (6) for fixing the stirring device (1) in the usage position, and that the sensor (11) is disposed on a printed circuit board (10) serving to control the drive motor (4).
- Stirring device as claimed in claim 1, characterised in that the sensor responding to imbalance is an acceleration sensor.
- Stirring device as claimed in claim 1 or 2, characterised in that the sensor (11) is provided with an acoustic and/or optical display device or signalling device or actuates such a device.
- Stirring device as claimed in any one of claims 1 to 3, characterised in that the sensor (11) responding to imbalance is connected to the control or regulating means of the drive motor (4) and, when a limit value is exceeded, changes the speed of the drive motor (4), specifically reduces or increases it, or switches off the drive motor (4).
- Stirring device as claimed in any one of the preceding claims, characterised in that the sensor (11) is formed in a piezo-based manner or inductively with a plunger coil or by means of a deflectable mass or by means of a strain gauge.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011102606A DE102011102606A1 (en) | 2011-05-27 | 2011-05-27 | Stirrer with a stirring tool and with a drive motor |
PCT/EP2012/001367 WO2012163444A1 (en) | 2011-05-27 | 2012-03-28 | Stirring device comprising a stirring tool and a drive motor |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2714257A1 EP2714257A1 (en) | 2014-04-09 |
EP2714257B1 true EP2714257B1 (en) | 2015-09-02 |
EP2714257B2 EP2714257B2 (en) | 2018-09-05 |
Family
ID=45937214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12712957.5A Active EP2714257B2 (en) | 2011-05-27 | 2012-03-28 | Stirring device comprising a stirring tool and a drive motor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140112092A1 (en) |
EP (1) | EP2714257B2 (en) |
CN (1) | CN103596668A (en) |
DE (2) | DE102011102606A1 (en) |
WO (1) | WO2012163444A1 (en) |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4142804A (en) | 1975-09-05 | 1979-03-06 | Lewis Specialties Limited | Apparatus and process for fluxing a mixable thermoplastic material |
GB2122396A (en) | 1982-06-11 | 1984-01-11 | Exxon Research Engineering Co | Monitoring system, for example for a pump or fluid mixer/agitator |
GB2139354A (en) | 1983-05-03 | 1984-11-07 | British Hydromechanics | Monitoring process conditions |
US4491019A (en) | 1981-12-24 | 1985-01-01 | Kontron Holding A.G. | Detection of dynamic unbalances of centrifuges |
US4606648A (en) | 1984-07-31 | 1986-08-19 | General Signal Corporation | Clustered mixing system |
US5396796A (en) | 1992-05-19 | 1995-03-14 | Tdk Corporation | Humidity meter |
DE19539633C2 (en) | 1995-10-25 | 1998-06-04 | Heraeus Instr Gmbh & Co Kg | Method for determining an unbalance of a rotor of a centrifuge set in rotation by means of a drive device and device for carrying out the method |
DE19701551C1 (en) | 1997-01-17 | 1998-08-06 | Fresenius Ag | Centrifuge rotor imbalance detector |
DE19735539A1 (en) | 1997-08-16 | 1999-02-18 | Albrecht Konietzko | Mixer for small-scale application |
WO2000070338A1 (en) | 1999-05-14 | 2000-11-23 | Honeywell Inc. | Board mounted sensor placement into a furnace duct |
US6379109B1 (en) | 2000-05-12 | 2002-04-30 | Roy F. Senior, Jr. | Method and apparatus for detecting and removing obstructions in mechanical aerators |
US20020154568A1 (en) | 2000-05-02 | 2002-10-24 | Renfro Charles K. | Mixing apparatus and method |
WO2003095956A2 (en) | 2002-04-13 | 2003-11-20 | I-For-T Gmbh | Vibration sensor and method for monitoring the condition of rotating components and bearings |
EP1834559A1 (en) | 2006-03-13 | 2007-09-19 | Seb Sa | Food preparation device equipped with means for detecting unbalance |
DE102006011370A1 (en) | 2006-03-09 | 2007-09-20 | Eppendorf Ag | Device for mixing, in particular, laboratory vessel contents with a sensor |
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EP2241270A2 (en) | 2005-06-28 | 2010-10-20 | Stryker Corporation | Control assembly for a motorized surgical tool that contains a sensor that monitors the state of the motor rotor |
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---|---|---|---|---|
US1743271A (en) * | 1928-09-20 | 1930-01-14 | Gem Appliances Inc | Electric mixer |
US6155113A (en) * | 1993-04-23 | 2000-12-05 | Vankel Technology Group | Stirring shaft monitoring comparator |
JPH07256078A (en) * | 1994-03-18 | 1995-10-09 | Hitachi Ltd | Vibration monitor device of stirring device |
CN2373171Y (en) * | 1999-05-19 | 2000-04-12 | 福建泉州南方路面机械有限公司 | Automatic metering monitoring apparatus for material weight of mixer |
CN2720830Y (en) * | 2004-08-26 | 2005-08-31 | 江苏牧羊集团有限公司 | Liquid batch mixing adder |
-
2011
- 2011-05-27 DE DE102011102606A patent/DE102011102606A1/en not_active Ceased
-
2012
- 2012-03-28 US US14/119,346 patent/US20140112092A1/en not_active Abandoned
- 2012-03-28 DE DE202012007820U patent/DE202012007820U1/en not_active Expired - Lifetime
- 2012-03-28 EP EP12712957.5A patent/EP2714257B2/en active Active
- 2012-03-28 WO PCT/EP2012/001367 patent/WO2012163444A1/en active Application Filing
- 2012-03-28 CN CN201280025907.2A patent/CN103596668A/en active Pending
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4142804A (en) | 1975-09-05 | 1979-03-06 | Lewis Specialties Limited | Apparatus and process for fluxing a mixable thermoplastic material |
US4491019A (en) | 1981-12-24 | 1985-01-01 | Kontron Holding A.G. | Detection of dynamic unbalances of centrifuges |
GB2122396A (en) | 1982-06-11 | 1984-01-11 | Exxon Research Engineering Co | Monitoring system, for example for a pump or fluid mixer/agitator |
GB2139354A (en) | 1983-05-03 | 1984-11-07 | British Hydromechanics | Monitoring process conditions |
EP0124383A1 (en) | 1983-05-03 | 1984-11-07 | National Research Development Corporation | Monitoring physical properties of a fluid |
US4606648A (en) | 1984-07-31 | 1986-08-19 | General Signal Corporation | Clustered mixing system |
US5396796A (en) | 1992-05-19 | 1995-03-14 | Tdk Corporation | Humidity meter |
DE19539633C2 (en) | 1995-10-25 | 1998-06-04 | Heraeus Instr Gmbh & Co Kg | Method for determining an unbalance of a rotor of a centrifuge set in rotation by means of a drive device and device for carrying out the method |
DE19701551C1 (en) | 1997-01-17 | 1998-08-06 | Fresenius Ag | Centrifuge rotor imbalance detector |
DE19735539A1 (en) | 1997-08-16 | 1999-02-18 | Albrecht Konietzko | Mixer for small-scale application |
WO2000070338A1 (en) | 1999-05-14 | 2000-11-23 | Honeywell Inc. | Board mounted sensor placement into a furnace duct |
US20020154568A1 (en) | 2000-05-02 | 2002-10-24 | Renfro Charles K. | Mixing apparatus and method |
US6379109B1 (en) | 2000-05-12 | 2002-04-30 | Roy F. Senior, Jr. | Method and apparatus for detecting and removing obstructions in mechanical aerators |
WO2003095956A2 (en) | 2002-04-13 | 2003-11-20 | I-For-T Gmbh | Vibration sensor and method for monitoring the condition of rotating components and bearings |
EP2241270A2 (en) | 2005-06-28 | 2010-10-20 | Stryker Corporation | Control assembly for a motorized surgical tool that contains a sensor that monitors the state of the motor rotor |
DE102006011370A1 (en) | 2006-03-09 | 2007-09-20 | Eppendorf Ag | Device for mixing, in particular, laboratory vessel contents with a sensor |
EP1834559A1 (en) | 2006-03-13 | 2007-09-19 | Seb Sa | Food preparation device equipped with means for detecting unbalance |
DE102006018325A1 (en) | 2006-04-19 | 2007-10-25 | Fritsch Gmbh | Ball mill especially for laboratory scale samples has rotating mountings for the milling beaker and the mounting plate with adjustable counterweight |
US20080056059A1 (en) | 2006-09-06 | 2008-03-06 | Henry Troemner, Llc | Incubating orbital shaker |
US20080150717A1 (en) | 2006-12-26 | 2008-06-26 | Eric Andre Georges Guillemot | Security Sensor-Transmitter for Detecting Wind in a Home Automation Installation |
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WO2012163444A1 (en) | 2012-12-06 |
EP2714257A1 (en) | 2014-04-09 |
CN103596668A (en) | 2014-02-19 |
US20140112092A1 (en) | 2014-04-24 |
DE202012007820U1 (en) | 2012-10-22 |
DE102011102606A1 (en) | 2012-11-29 |
EP2714257B2 (en) | 2018-09-05 |
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