EP0732011A1 - Cable-less data-enquiry method and device - Google Patents
Cable-less data-enquiry method and deviceInfo
- Publication number
- EP0732011A1 EP0732011A1 EP95928976A EP95928976A EP0732011A1 EP 0732011 A1 EP0732011 A1 EP 0732011A1 EP 95928976 A EP95928976 A EP 95928976A EP 95928976 A EP95928976 A EP 95928976A EP 0732011 A1 EP0732011 A1 EP 0732011A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- capacitance
- inductance
- station
- conductive substance
- electrically conductive
- 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- Withdrawn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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/22—Capacitive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/45—Transponders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
Definitions
- the invention relates to a device for a device for wireless information retrieval.
- an answering station supplies the polling station with the necessary energy and the corresponding information by means of a wireless polling signal.
- This includes, for example, a device that is supplied with the necessary energy wirelessly via a reading device and also wirelessly transmits the information to an interrogation station, the reading station being able to be moved over a predetermined distance during the reading process.
- the invention includes a method for producing such a device.
- a portable, field-programmable detector plate has been described in European patent application 0441 237.
- an inductance is used for energy transmission and also for sending the data.
- a field trial is also programming possible.
- the data are transmitted by pulse pause modulation and digitally evaluated.
- the object of the invention is to provide a device for energy transmission and for reading and writing data, which is very simple and inexpensive to be mass-produced inexpensively.
- an inductance which is provided with a carrier.
- This inductance can, for example, be wound, etched or also vapor-deposited onto the corresponding carrier material.
- a self-supporting inductor instead of the carrier, which is so dimensionally stable as a coil that it does not lose its shape even under mechanical stress.
- a high-resistance but conductive substance is then applied to this inductance.
- This substance represents the capacitor surfaces and is therefore to be produced from two geometrically independent structures which are not connected to one another but are located one inside the other. It is absolutely necessary for the conductive substance that its electrical resistance value is very high-impedance, because this does not affect the magnetic fields of the inductance.
- this substance must also be so low-resistance that a perfect capacitive transmission of information is guaranteed.
- the capacitor areas lie directly above the inductance, which makes it clear that the conductive substance must not have a low resistance, since otherwise it would represent a short circuit in itself and also for the radiation field of the inductance.
- This close coupling of the inductance and the capacitance in the smallest space makes it possible, for example, to produce a response station which works according to the transponder system, can communicate with the stationary station and is also inexpensive to produce, namely by virtue of the fact that a thin credit card format, for example built response station can be realized.
- the capacitor surfaces can be placed one inside the other.
- a carbon varnish for example, can be used as the conductive substance, which is very high-resistance and therefore does not represent a short-circuit ring for the capacitance.
- the carbon varnish is to be understood as a conductive varnish, which is preferably produced as a two-component screen printing varnish.
- This carbon-conductive varnish has been enriched with a special carbon black and / or a special type of graphite, so that it has sufficient electrical conductivity. In addition to the conductivity, such a lacquer also has a very high mechanical strength.
- Such a lacquer can also be used for soldering tapes, so that contacting does not pose any difficulties, and likewise no changes in the resistance value can be determined after hot tinning.
- it can be enriched, for example, with a two-component insulating paste. Such an approach does not influence the inductance. Capacitive feeding of the device is therefore possible.
- a device of the type described enables capacitive data transmission in any position with the simultaneous advantage of the high reading distance. It is possible, for example, to use full-duplex operation with such a device be carried out, ie with the transmission of energy it is also possible to query and send data.
- inductance and capacitor are virtually in one plane or are placed directly next to one another.
- in one plane means that when they are designed as a thin element without a corresponding support, they lie directly in front of one another.
- a conductive substance e.g. a carbon varnish or any other conductive substance because it has a very high resistance to the existing inductance and is sufficiently conductive as a capacitive surface.
- a resist varnish is applied by placing stencils at the locations of the device where a capacitor surface is to be produced.
- the varnish can be applied by spraying, brushing or printing (screen printing).
- the thickness of the order also determines the resistance value.
- all other high-resistance materials can be used, which can be applied by the aforementioned manner.
- it is also possible to use correspondingly conductive plastics or foils, the resistance value of which is correspondingly high-ohmic and at the same time can be used as a capacitive material.
- the size of the capacitive areas depends on the application, but the geometric shape of these areas is completely independent and can therefore be easily adapted to the requirements of the market.
- the capacitor surfaces can have an annular or circular shape such that they lie inside one another.
- the capacitor areas do not have to be closed, they can also be open at one point, only in such a case a larger active area is required for the capacitance.
- Figure 1 a circular and annular capacitor surface
- Figure 2 shows a section AA through this capacitor surface according to Figure
- Figure 4 a section B-B through the capacitor surfaces of Figure 3 with inductance
- Figure 5 shows a section through the arrangement of the capacitor surface
- FIG. 1 shows a circular capacitor area 2, around which a second capacitor area 2 is placed in an annular manner. There is an intermediate space between the two capacitor surfaces 1 and 2, which acts as a dielectric 15 between the plates.
- the capacitance 12 created in this way is applied as described above by a high-resistance conductive substance in conjunction with the corresponding method.
- the contacts required for connecting the connecting lines are not shown in this illustration.
- the capacitor areas 1 and 2 are located on a carrier 3 on its side 11.
- This carrier 3 can be, for example, a film or some other suitable electrically non-conductive material.
- the inductor 4 is located on the opposite side 10 of the carrier 3. As previously described, this inductor can be positively connected to the carrier 3 by etching, vapor deposition or as a winding body.
- This type of representation makes it clear that there is a very close coupling, in particular, between the capacitor 12 with its capacitor areas 1 and 2 and the capacitance 4. However, this close coupling is only possible insofar as the capacitor surfaces 1 and 2 consist of a high-resistance conductive substance. If this were not the case, the magnetic field of the inductor would be short-circuited.
- FIG. 1 A variant of a capacitor is shown in FIG.
- a capacitance 14 is formed from capacitor areas 5 and 6, which are located in the latter If there is no short circuit in each case. Rather, an interruption is present at any point in the annular capacitor surface 5. Furthermore, the inner capacitor surface 6 separated by the dielectric 15 is likewise of annular design and also has an interruption 14 at any point. If the capacitance 14 is formed in the manner described above, however, larger areas are necessary for a correspondingly equivalent capacitance, as described in FIG. 1.
- FIG. 4 shows in section B-B of FIG. 3 that the capacitance 14 has been applied directly to the inductor 4. This is possible if the inductor 4 is a body which is stable in itself and which allows direct application of the high-resistance conductive substance.
- a circuit 9 available for processing information or for storing information can, as shown in FIG. 5, be used with appropriate placement within the inductor.
- the capacitor areas 1 and 2 on a carrier 3 are closely related to the inductance 8.
- the contacting of the capacitor surfaces 1 and 2 by the carrier 3 can be made directly with the circuit 9.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Abstract
Description
VERFAHREN UND VORRICHTUNG ZUR DRAHTLOSEN INFORMATIONSABFRAGE METHOD AND DEVICE FOR WIRELESS INFORMATION REQUEST
Beschreibungdescription
Die Erfindung betrifft eine Vorrichtung für eine Einrichtung zur drahtlosen Informationsabfrage. Bei einer solchen Einrichtung wird von einer Ant¬ wortstation durch ein drahtloses Abfragesignal einer Abfragestation diese mit der notwendigen Energie sowie mit den entsprechenden Informationen versorgt. Hierzu zählt beispielsweise eine Einrichtung, die über ein Lesege- rät drahtlos mit der notwendigen Energie versorgt wird und darüber hinaus drahtlos die Informationen an eine Abfragestation überträgt, wobei die Le¬ sestation während des Lesevorganges über eine vorgegebene Strecke fortbewegt werden kann. Des weiteren beinhaltet die Erfindung ein Verfah¬ ren zur Herstellung einer solchen Vorrichtung.The invention relates to a device for a device for wireless information retrieval. In such a device, an answering station supplies the polling station with the necessary energy and the corresponding information by means of a wireless polling signal. This includes, for example, a device that is supplied with the necessary energy wirelessly via a reading device and also wirelessly transmits the information to an interrogation station, the reading station being able to be moved over a predetermined distance during the reading process. Furthermore, the invention includes a method for producing such a device.
Es ist hinlänglich bekannt, über Spulen induktive Energie und Daten zu übertragen, was im wesentlichen einem Transformator mit entsprechen¬ dem Luftspalt entspricht. Weiterhin ist bekannt durch Hochfrequenz, d.h. im funktechnischen Bereich, Energie und Daten zu übertragen. Diese bei¬ den Methoden sind technisch sehr aufwendig, sobald sich die Abfragesta- tion während des Lesevorganges bewegt.It is well known to transmit inductive energy and data via coils, which essentially corresponds to a transformer with a corresponding air gap. It is also known from high frequency, i.e. to transmit energy and data in the radio area. These two methods are technically very complex as soon as the interrogation station moves during the reading process.
Aus der DE-PS 40 17 934 ist eine Einrichtung zur drahtlosen Informations¬ abfrage bekannt geworden, die zur drahtlosen Informationsabfrage so be¬ schaffen ist, daß bei einem einfachen Aufbau eine sichere Daten- und Energieübertragung gewährleistet ist. Auf der Abfragestation befindet sich ein Generator, der ein Wechselstromsignal erzeugt, das über Kondensato¬ ren zur Antwortstation übertragen wird.From DE-PS 40 17 934 a device for wireless information interrogation has become known, which is designed for wireless information interrogation in such a way that secure data and energy transmission is ensured with a simple structure. There is a generator on the interrogation station which generates an alternating current signal which is transmitted to the response station via capacitors.
In der europäischen Patentanmeldung 0441 237 ist ein tragbares, feldpro¬ grammierbares Detektorplättchen beschrieben worden. Bei diesem Detek- torplättchen wird zur Energieübertragung und auch zum Senden der Daten eine Induktivität verwendet. Ferner ist auch gleichzeitig noch eine Feldpro- grammierung möglich. Dabei werden die Daten durch eine Pulspausenmo¬ dulation übertragen und digital ausgewertet.A portable, field-programmable detector plate has been described in European patent application 0441 237. In this detector plate, an inductance is used for energy transmission and also for sending the data. Furthermore, a field trial is also programming possible. The data are transmitted by pulse pause modulation and digitally evaluated.
Die Aufgabe der Erfindung ist es, eine Vorrichtung zur Energieübertragung als auch zum Datenlesen und -schreiben zu schaffen, die sehr einfach und kostengünstig aufgebaut ist, um als Massenartikel preisgünstig herstellbar zu sein.The object of the invention is to provide a device for energy transmission and for reading and writing data, which is very simple and inexpensive to be mass-produced inexpensively.
Die Aufgabe wird dadurch gelöst, daß eine Induktivität verwendet wird, die mit einem Träger versehen ist. Diese Induktivität kann beispielsweise ge¬ wickelt, geätzt oder auch auf das entsprechende Trägermaterial aufge- dampft werden. Es ist jedoch auch möglich, statt des Trägers eine selbst¬ tragende Induktivität zu verwenden, die als Spule so formstabil ist, daß sie auch durch mechanische Beanspruchungen ihre Form nicht verliert. Auf diese Induktivität wird dann eine hochohmige jedoch leitfähige Substanz aufgebracht. Diese Substanz stellt die Kondensatorflächen dar und ist somit aus zwei nicht miteinander verbundenen, geometrisch unabhängi¬ gen, jedoch ineinanderliegenden Gebilden herzustellen. Für die leitfähige Substanz ist es unbedingt notwendig, daß deren elektrischer Widerstands¬ wert sehr hochohmig ist, weil dadurch keine Beeinflussung von Magnetfel¬ dern der Induktivität auftreten. Gleichzeitig muß diese Substanz jedoch auch so niederohmig sein, daß eine einwandfreie kapazitive Übertragung von Informationen gewährleistet ist. Dabei liegen die Kondensatorflächen direkt über der Induktivität, woraus klar wird, daß die leitfähige Substanz nicht niederohmig sein darf, da sie sonst einen Kurzschluß in sich und auch für das Abstrahlfeld der Induktivität dar-stellen würde. Durch diese enge Kopplung der Induktivität und der Kapazität auf engstem Raum ist es möglich, beispielsweise eine Antwortstation herzustellen, welche nach dem Transpondersystem arbeitet, mit der stationären Station kommunizieren kann und darüber hinaus preiswert herzustellen ist, nämlich dadurch, daß eine dünne, beispielsweise in Scheckkartenformatgröße aufgebaute Ant- wortstation realisiert werden kann.The object is achieved in that an inductance is used which is provided with a carrier. This inductance can, for example, be wound, etched or also vapor-deposited onto the corresponding carrier material. However, it is also possible to use a self-supporting inductor instead of the carrier, which is so dimensionally stable as a coil that it does not lose its shape even under mechanical stress. A high-resistance but conductive substance is then applied to this inductance. This substance represents the capacitor surfaces and is therefore to be produced from two geometrically independent structures which are not connected to one another but are located one inside the other. It is absolutely necessary for the conductive substance that its electrical resistance value is very high-impedance, because this does not affect the magnetic fields of the inductance. At the same time, however, this substance must also be so low-resistance that a perfect capacitive transmission of information is guaranteed. The capacitor areas lie directly above the inductance, which makes it clear that the conductive substance must not have a low resistance, since otherwise it would represent a short circuit in itself and also for the radiation field of the inductance. This close coupling of the inductance and the capacitance in the smallest space makes it possible, for example, to produce a response station which works according to the transponder system, can communicate with the stationary station and is also inexpensive to produce, namely by virtue of the fact that a thin credit card format, for example built response station can be realized.
Bei den zum Stand der Technik zu zählenden Systemen besteht der Nach¬ teil darin, daß bei kapazitiven Systemen das Zusammenwirken mit den Induktivitäten nicht lageunabhängig ist, wie es bei rein induktiven Syste- men der Fall ist. Aus diesem Grunde werden die zum Stand der Technik zählenden Systeme in der Regel so aufgebaut, daß in der Mitte des Sy¬ stems eine Induktivität vorhanden ist, und rechts und links daran sich die Kapazitäten anschließen. Durch diese Plazierung sind die Einheiten jedoch nicht lageunabhängig, und sie müssen in einer bestimmten Position (Lage) zum Einsatz gebracht werden, um einwandfrei mit der ortsfesten Station kommunizieren zu können.The disadvantage of the systems of the prior art is that in the case of capacitive systems, the interaction with the inductors is not position-independent, as is the case with purely inductive systems. men is the case. For this reason, the systems belonging to the prior art are generally constructed in such a way that an inductor is present in the middle of the system and the capacitors are connected to them on the right and left. Due to this placement, the units are not position-independent, and they must be used in a certain position (position) in order to be able to communicate properly with the stationary station.
Werden die Kondensatorflächen jedoch vor die Induktivität gesetzt, so bil¬ det dieses einen Kurzschluß für die Kapazität, wenn die Kapazität aus einem niederohmigen Material hergestellt wird. Durch diesen Kurzschluß bricht die Induktivität in sich zusammen, was wiederum einen sehr hohen Strom beinhaltet, der im entsprechenden Windungszahlenverhältnis steht. Die aufgebauten Magnetfelder heben sich somit auf, und es ist kein Be¬ trieb mit einer solchen Vorrichtung möglich.However, if the capacitor areas are placed in front of the inductance, this forms a short circuit for the capacitance if the capacitance is made from a low-resistance material. This short circuit causes the inductance to collapse, which in turn contains a very high current which is in the corresponding ratio of turns. The magnetic fields thus built up cancel each other out, and operation with such a device is not possible.
Durch die erfindungsgemäß verwendete hochohmige leitfähige Substanz können die Kondensatorflächen ineinander gelegt werden. Als leitfähige Substanz kann beispielsweise ein Karbonlack verwendet werden, der sehr hochohmig ist, und somit keinen Kurzschlußring für die Kapazität darstellt. Der Karbonlack ist dabei als Leitlack zu verstehen, der vorzugsweise als Zweikomponenten-Siebdrucklack hergestellt wird. Dieser Karbon-Leitlack ist mit einem Spezialruß und/oder einem besonderen Graphittyp angerei¬ chert worden, so daß er eine ausreichende elektrische Leitfähigkeit auf¬ weist. Neben der Leitfähigkeit weist ein solcher Lack auch eine sehr hohe mechanische Festigkeit auf. Ein solcher Lack ist auch für Lötbänder ver- wendbar, so daß eine Kontaktierung keine Schwierigkeiten mit sich bringt, ebenfalls sind nach dem Heißverzinnen keine Veränderungen des Wider¬ standswertes festzustellen. Um eine Widerstandserhöhung eines solchen Karbon-Leitlackes zu erreichen, kann er beispielsweise mit einer Zwei¬ komponenten-Isolierpaste angereichert werden. Eine Beeinflussung der Induktivität wird bei einer solchen Vorgehensweise nicht erreicht. Es ist deshalb eine kapazitive Einspeisung der Einrichtung möglich. Durch eine Vorrichtung der beschriebenen Art ist eine kapazitive Datenübertragung in jeder Lage mit dem gleichzeitigen Vorteil des hohen Leseabstandes mög¬ lich. Es ist kann z.B. mit einer solchen Vorrichtung ein Vollduplexbetrieb durchgeführt werden, d.h. mit der Energieübertragung wird gleichzeitig auch das Abfragen und Senden von Daten möglich.Due to the high-resistance conductive substance used according to the invention, the capacitor surfaces can be placed one inside the other. A carbon varnish, for example, can be used as the conductive substance, which is very high-resistance and therefore does not represent a short-circuit ring for the capacitance. The carbon varnish is to be understood as a conductive varnish, which is preferably produced as a two-component screen printing varnish. This carbon-conductive varnish has been enriched with a special carbon black and / or a special type of graphite, so that it has sufficient electrical conductivity. In addition to the conductivity, such a lacquer also has a very high mechanical strength. Such a lacquer can also be used for soldering tapes, so that contacting does not pose any difficulties, and likewise no changes in the resistance value can be determined after hot tinning. In order to increase the resistance of such a carbon conductive varnish, it can be enriched, for example, with a two-component insulating paste. Such an approach does not influence the inductance. Capacitive feeding of the device is therefore possible. A device of the type described enables capacitive data transmission in any position with the simultaneous advantage of the high reading distance. It is possible, for example, to use full-duplex operation with such a device be carried out, ie with the transmission of energy it is also possible to query and send data.
Induktivität und Kondensator befinden sich bei der erfindungsgemäßen Vorrichtung quasi in einer Ebene bzw. sind direkt aneinander gesetzt. Da- bei bedeutet in einer Ebene, daß bei der Ausführung als dünnes Element ohne einen entsprechenden Träger, sie direkt vor einander liegen.In the device according to the invention, inductance and capacitor are virtually in one plane or are placed directly next to one another. Here, in one plane means that when they are designed as a thin element without a corresponding support, they lie directly in front of one another.
Als leitfähige Substanz bietet sich z.B. ein Karbonlack oder jede andere leitfähige Substanz deshalb an, weil er für die vorhandene Induktivität sehr hochohmig und als kapazitive Fläche ausreichend leitend ist. Das Auftra- gen eines solchen Widerstandslackes geschieht dadurch, daß Schablonen an den Stellen der Vorrichtung plaziert werden, wo eine Kondensatorfläche hergestellt werden soll. Das Auftragen des Lackes kann durch Spritzen, Streichen bzw. Drucken (Siebdruck) geschehen. Die Dicke des Auftrages bestimmt dabei gleichzeitig den Widerstandswert. Alternativ dazu können alle anderen hochohmigen Widerstandsmaterialien verwendet werden, die sich durch vorgenannte Art und Weise auftragen lassen. Alternativ dazu ist es jedoch auch möglich, entsprechend leitende Kunststoffe oder Folien zu verwenden, deren Widerstandswert entsprechend hoch-ohmig ist und gleichzeitig als kapazitives Material eingesetzt werden können.As a conductive substance, e.g. a carbon varnish or any other conductive substance because it has a very high resistance to the existing inductance and is sufficiently conductive as a capacitive surface. Such a resist varnish is applied by placing stencils at the locations of the device where a capacitor surface is to be produced. The varnish can be applied by spraying, brushing or printing (screen printing). The thickness of the order also determines the resistance value. Alternatively, all other high-resistance materials can be used, which can be applied by the aforementioned manner. Alternatively, however, it is also possible to use correspondingly conductive plastics or foils, the resistance value of which is correspondingly high-ohmic and at the same time can be used as a capacitive material.
Die Größe der kapazitiven Flächen richtet sich nach dem Anwendungsfall, jedoch ist die geometrische Form dieser Flächen völlig unabhängig und kann deshalb problemlos auch den Forderungen des Marktes angepaßt werden. Beispielsweise können die Kondensatorflächen ring- oder kreis¬ förmig so ausgebildet sein, daß sie ineinanderiiegen.The size of the capacitive areas depends on the application, but the geometric shape of these areas is completely independent and can therefore be easily adapted to the requirements of the market. For example, the capacitor surfaces can have an annular or circular shape such that they lie inside one another.
Die Kondensatorflächen müssen dabei nicht in sich geschlossen sein, sie können auch an einer Stelle offen sein, nur ist in einem solchen Falle eine größere aktive Fläche für die Kapazität notwendig.The capacitor areas do not have to be closed, they can also be open at one point, only in such a case a larger active area is required for the capacitance.
Die Erfindung wird anhand von schematisch dargestellten möglichen Aus¬ führungsbeispielen näher erläutert. Es zeigt:The invention is explained in more detail with the aid of schematically illustrated possible exemplary embodiments. It shows:
Figur 1 : eine kreis- und ringförmige Kondensatorfläche Figur 2: einen Schnitt A-A durch diese Kondensatorfläche nach FigurFigure 1: a circular and annular capacitor surface Figure 2 shows a section AA through this capacitor surface according to Figure
1 mit dahinteriiegender Induktivität1 with inductance behind
Figur 3: zwei in sich nicht geschlossene KondensatorflächenFigure 3: two non-self-contained capacitor areas
Figur 4: einen Schnitt B-B durch die Kondensatorflächen nach Figur 3 mit InduktivitätFigure 4: a section B-B through the capacitor surfaces of Figure 3 with inductance
Figur 5: einen Schnitt durch die Anordnung Kondensatorfläche zurFigure 5 shows a section through the arrangement of the capacitor surface
Induktivität mit Träger.Inductance with carrier.
In der Figur 1 ist eine kreisförmige Kondensatorfläche 2 dargestellt, um die sich ringförmig eine zweite Kondensatorfläche 2 plaziert. Zwischen beiden Kondensatorflächen 1 und 2 ist ein Zwischenraum, der als Dielektrikum 15 zwischen den Platten wirkt. Die so entstandene Kapazität 12 wird wie be¬ reits vorbeschrieben durch eine hochohmige leitfähige Substanz in Verbin¬ dung mit dem entsprechenden Verfahren aufgebracht. In dieser Darstel¬ lung sind die zum Anschluß der Verbindungsleitungen notwendigen Kon- taktierungen nicht dargestellt.1 shows a circular capacitor area 2, around which a second capacitor area 2 is placed in an annular manner. There is an intermediate space between the two capacitor surfaces 1 and 2, which acts as a dielectric 15 between the plates. The capacitance 12 created in this way is applied as described above by a high-resistance conductive substance in conjunction with the corresponding method. The contacts required for connecting the connecting lines are not shown in this illustration.
Bei diesem Ausführungsbeispiel wird in der Schnittdarstellung A-A in der Figur 2 deutlich, daß sich die Kondensatorflächen 1 und 2 auf einem Trä¬ ger 3 an seiner Seite 11 befinden. Dieser Träger 3 kann beispielsweise eine Folie oder ein sonst geeignetes elektrisch nichtleitendes Material sein. Auf der gegenüberliegenden Seite 10 des Trägers 3 befindet sich die In¬ duktivität 4. Diese Induktivität kann wie bereits vorbeschrieben durch Ät¬ zen, Aufdampfen oder als Wickelkörper mit dem Träger 3 formschlüssig verbunden werden. Durch diese Darstellungsart wird deutlich, daß insbe¬ sondere zwischen dem Kondensator 12 mit seinen Kondensatorflächen 1 und 2 und der Kapazität 4 eine sehr enge Kopplung vorhanden ist. Diese enge Kopplung ist allerdings nur insofern möglich, da die Kondensatorflä¬ chen 1 und 2 aus einer hochohmigen leitfähigen Substanz bestehen. Würde dies nicht der Fall sein, würde es zu einem Kurzschluß des Ma¬ gnetfeldes der Induktivität führen.In this exemplary embodiment, it is clear from the sectional illustration A-A in FIG. 2 that the capacitor areas 1 and 2 are located on a carrier 3 on its side 11. This carrier 3 can be, for example, a film or some other suitable electrically non-conductive material. The inductor 4 is located on the opposite side 10 of the carrier 3. As previously described, this inductor can be positively connected to the carrier 3 by etching, vapor deposition or as a winding body. This type of representation makes it clear that there is a very close coupling, in particular, between the capacitor 12 with its capacitor areas 1 and 2 and the capacitance 4. However, this close coupling is only possible insofar as the capacitor surfaces 1 and 2 consist of a high-resistance conductive substance. If this were not the case, the magnetic field of the inductor would be short-circuited.
In der Figur 3 ist eine Variante eines Kondensators dargestellt. Eine Ka¬ pazität 14 wird aus Kondensatorflächen 5 und 6 gebildet, die in diesem Falle nicht in sich jeweils einen Kurzschluß aufweisen. Vielmehr ist an einer beliebigen Stelle in der ringförmigen Kondensatorfläche 5 eine Un¬ terbrechung vorhanden. Ferner ist die innere durch das Dielektrikum 15 getrennte Kondensatorfläche 6 ebenfalls ringförmig ausgeführt und weist an einer beliebigen Stelle auch eine Unterbrechung 14 auf. Bildet man die Kapazität 14 in der vorbeschriebenen Art und Weise aus, sind jedoch grö¬ ßere Flächen für eine entsprechend gleichwertige Kapazität, wie es in der Figur 1 beschrieben, notwendig.A variant of a capacitor is shown in FIG. A capacitance 14 is formed from capacitor areas 5 and 6, which are located in the latter If there is no short circuit in each case. Rather, an interruption is present at any point in the annular capacitor surface 5. Furthermore, the inner capacitor surface 6 separated by the dielectric 15 is likewise of annular design and also has an interruption 14 at any point. If the capacitance 14 is formed in the manner described above, however, larger areas are necessary for a correspondingly equivalent capacitance, as described in FIG. 1.
In der Figur 4 wird in der Schnittdarstellung B-B der Figur 3 gezeigt, daß die Kapazität 14 direkt auf die Induktivität 4 aufgebracht worden ist. Dieses ist dann möglich, wenn die Induktivität 4 ein in sich stabiler Körper ist, der es zuläßt, eine direkte Aufbringung der hochohmigen leitfähigen Substanz zuzulassen.FIG. 4 shows in section B-B of FIG. 3 that the capacitance 14 has been applied directly to the inductor 4. This is possible if the inductor 4 is a body which is stable in itself and which allows direct application of the high-resistance conductive substance.
Ein für die Verarbeitung von Informationen bzw. zur Speicherung von In- formationen vorhandener Schaltkreis 9 kann, wie es die Figur 5 zeigt, bei entsprechend geschickter Plazierung innerhalb der Induktivität eingesetzt werden. Auch hier sind auf einem Träger 3 die Kondensatorflächen 1 und 2 eng mit der Induktivität 8 in Beziehung. Durch die Verwendung des Schaltkreises 9 innerhalb der Induktivität 8 können die Kontaktierungen der Kondensatorflächen 1 und 2 durch den Träger 3 direkt mit dem Schalt¬ kreis 9 vorgenommen werden.A circuit 9 available for processing information or for storing information can, as shown in FIG. 5, be used with appropriate placement within the inductor. Here, too, the capacitor areas 1 and 2 on a carrier 3 are closely related to the inductance 8. By using the circuit 9 within the inductor 8, the contacting of the capacitor surfaces 1 and 2 by the carrier 3 can be made directly with the circuit 9.
Wie die Beschreibung deutlich macht, kann eine Antwortstation für die drahtlose Informationsabfrage und Energieübertragung zwischen einer Abfragestation mit geringstmöglichen Abmessungen und darüber hinaus auch noch sehr kostengünstig hergestellt werden. BezugszeichenAs the description makes clear, a response station for wireless information retrieval and energy transmission between an interrogation station with the smallest possible dimensions and, moreover, can also be produced very inexpensively. Reference numerals
1 Kondensatorfläche1 capacitor area
2 Kondensatorfläche2 capacitor area
3 Träger3 carriers
4 Induktivität4 inductance
5 Kondensatorfläche5 capacitor area
6 Kondensatorfläche6 capacitor area
7 Unterbrechung7 interruption
8 Induktivität8 inductance
9 Schaltkreis9 circuit
10 Seite10 page
11 Seite11 page
12 Kapazität12 capacity
13 Unterbrechung13 interruption
14 Kapazität14 capacity
15 Dielektrikum 15 dielectric
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4432324 | 1994-09-12 | ||
| DE4432324A DE4432324A1 (en) | 1994-09-13 | 1994-09-13 | Device for a device for wireless information retrieval and method for producing the device |
| PCT/DE1995/001127 WO1996008880A1 (en) | 1994-09-12 | 1995-08-25 | Cable-less data-enquiry method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0732011A1 true EP0732011A1 (en) | 1996-09-18 |
Family
ID=6527941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95928976A Withdrawn EP0732011A1 (en) | 1994-09-12 | 1995-08-25 | Cable-less data-enquiry method and device |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5841122A (en) |
| EP (1) | EP0732011A1 (en) |
| CN (1) | CN1134766A (en) |
| CZ (1) | CZ285611B6 (en) |
| DE (1) | DE4432324A1 (en) |
| ES (1) | ES2090002T1 (en) |
| FI (1) | FI962006A0 (en) |
| HU (1) | HUT76003A (en) |
| PL (1) | PL315117A1 (en) |
| SK (1) | SK59696A3 (en) |
| WO (1) | WO1996008880A1 (en) |
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1994
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1995
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- 1995-08-25 HU HU9600991A patent/HUT76003A/en unknown
- 1995-08-25 CN CN95190814.6A patent/CN1134766A/en active Pending
- 1995-08-25 WO PCT/DE1995/001127 patent/WO1996008880A1/en not_active Application Discontinuation
- 1995-08-25 EP EP95928976A patent/EP0732011A1/en not_active Withdrawn
- 1995-08-25 PL PL95315117A patent/PL315117A1/en unknown
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- 1995-08-25 CZ CZ961384A patent/CZ285611B6/en not_active IP Right Cessation
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1996
- 1996-05-10 US US08/644,537 patent/US5841122A/en not_active Expired - Fee Related
- 1996-05-10 FI FI962006A patent/FI962006A0/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179597A1 (en) * | 2000-08-11 | 2002-02-13 | Ajinomoto Co., Ltd. | Method for producing threonine and isoleucine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4432324A1 (en) | 1996-03-14 |
| SK59696A3 (en) | 1998-07-08 |
| HU9600991D0 (en) | 1996-06-28 |
| CZ138496A3 (en) | 1997-04-16 |
| FI962006L (en) | 1996-05-10 |
| WO1996008880A1 (en) | 1996-03-21 |
| PL315117A1 (en) | 1996-10-14 |
| US5841122A (en) | 1998-11-24 |
| FI962006A0 (en) | 1996-05-10 |
| CZ285611B6 (en) | 1999-09-15 |
| ES2090002T1 (en) | 1996-10-16 |
| HUT76003A (en) | 1997-06-30 |
| CN1134766A (en) | 1996-10-30 |
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