EP2269004A1 - Magnetic position sensor comprising a tapping layer consisting of an amorphous metal - Google Patents
Magnetic position sensor comprising a tapping layer consisting of an amorphous metalInfo
- Publication number
- EP2269004A1 EP2269004A1 EP09733974A EP09733974A EP2269004A1 EP 2269004 A1 EP2269004 A1 EP 2269004A1 EP 09733974 A EP09733974 A EP 09733974A EP 09733974 A EP09733974 A EP 09733974A EP 2269004 A1 EP2269004 A1 EP 2269004A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- position sensor
- layer
- abgreifschicht
- magnetic
- cover
- 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- Withdrawn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
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
- G01D5/165—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact or actuation and a resistive track
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
-
- 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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
- G01D5/165—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact or actuation and a resistive track
- G01D5/1655—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance by relative movement of a point of contact or actuation and a resistive track more than one point of contact or actuation on one or more tracks
Definitions
- the invention relates to a magnetic position sensor, consisting of an electrically non-conductive, non-magnetic support on which a resistive layer and at a distance therefrom at least partially superimposed, a Abgreif harsh is arranged, wherein the distance is selected such that under the action of one along the superimposed Areas of resistive layer and Abgreiftik movable magnetic device of contact between the resistive layer and the Abgreif harsh arises, according to the features of the preamble of the respective independent claim.
- Position sensors that detect the position of an element relative to a reference position are known in principle.
- Example of such a position sensor is disclosed in DE 43 39 931 C1.
- this position sensor has the disadvantage that it works mechanically under pressure, so that this position sensor is exposed to high wear.
- magnetic position sensors have already become known, e.g. from DE 196 48 539 C2 or DE 10 2004 004 102 B3.
- a generic, passive, magnetic position sensor is known from DE 195 26 254 C2. This position sensor consists of an electrically non-conductive, non-magnetic carrier on which a resistive layer and at a distance
- the Abgreif für acusutica is arranged.
- the Abgreif für acususky is a bending beam structure which is meander-shaped and arranged between two spacers.
- the distance between the Abgreif für apentame, here a permanent magnet, a contact between the resistive layer and the Abgreiftik, resulting in application of an electrical voltage to the Resistor layer is a change in resistance, which is detectable and represents a measure of the relative position of the permanent magnet with respect to the position sensor.
- a generic sensor is known from DE 10 2007 055 253.1.
- the invention is therefore based on the object to provide a magnetic position sensor which operates wear-free, which is further improved in terms of its structure and its durability.
- the Abgreif Mrs is an existing of an amorphous metal foil on which the force of the magnetic device acts.
- the tapping layer is at least partially, preferably completely formed by the a-morph metal.
- the positive properties of amorphous metals are advantageously used to generate a mechanical bending or a wave in response to the movement of an object to be detected by means of the magnetic position sensor with a magnetic force on the amorphous metal foil.
- the properties purely elastic, soft magnetic, thin film and electrically conductive of the tapping layer according to the invention are used in order to produce a magnetic position sensor with such an amorphous metal film easier to reduce the height and to improve the durability.
- amorphous metals were only used separately for objects.
- transformer cores used only the soft magnetic properties, or the purely mechanical properties of amorphous metals were used, for example, for filigree mobile phone hinges.
- the design of the Abgreif Anlagen as a film of an amorphous metal also called metallic glass
- amorphous metals are harder, more corrosion resistant and solid (thus durably durable), but within certain limits deformable than ordinary metals.
- Another advantage is that the deformations are small (about 1%) and these amorphous metals behave purely elastically.
- amorphous metals are the best commercially available soft magnetic materials, thereby increasing the manufacturing cost of the position sensors with such a tapping layer an amorphous metal can be lowered. Furthermore, very thin films, preferably 20 microns thick films (+/- 25%) can be produced in an advantageous manner. In addition, these amorphous metals are electrically conductive, so that with the production of Abgreifnah already the required property of the electrical conductivity is realized.
- the use of a Abgreifnah in the form of a film of an amorphous metal thus has the advantage that this film is much more robust against mechanical external effects on the position sensor and such a film is much easier to manufacture and handle in the production.
- the Abgreifnah consists of the amorphous metal material, it can optimally be used by the magnetic device, in particular a permanent magnet, selectively in the field of magnet action on the resistive layer, so that from the desired change in resistance, which is detectable results. This makes it possible that both the magnetic device is smaller and the height of the position sensor can be reduced, since the smaller magnet can be brought closer to the position sensor.
- the resistive layer and also the Abgreifnah arranged on this carrier i. be fastened so that the spacers required from the prior art can be omitted. This also results in a reduction in the overall height of the entire position sensor.
- both the carrier and the resistance layer, the Abgreifnah and a cover of the carrier are formed of a rigid or flexible film, which in turn reduces the overall height of the position sensor is reduced.
- the Abgreif für is protected by a cover, wherein the cover is connected to the carrier of the position sensor.
- the position sensor consist of a flexible film
- the further processing is carried out, for example, such that at the ends of the deflected piece of the position sensor end pieces are attached, wherein on one side of the end piece a cable is led out, which is connected to the resistance layer and the Abgreiftik, wherein further at the end of the cable to Example, but not necessarily, a connector is present.
- the position sensor can be connected to an evaluation device to which the position sensor is connected and which is adapted to detect the change in resistance in relative movement of the magnetic device to the position sensor.
- the cover is a flux guide plate or comprises a flux guide plate.
- a flux guide plate By such a flux guide plate, the magnetic effect can be amplified and the sensitivity of the position sensor increases or the magnetic force of the magnetic device associated with the size thereof can be reduced.
- the cover for example, a plastic housing in which a suitable flux guide plate is inserted and secured there. The attachment can be done for example by gluing or Verstämmen.
- the cover in an injection molding process, wherein the flux guide plate with the plastic material which forms the cover, at least partially or in particular also completely encapsulated.
- the cover is a rigid plastic part or a flexible plastic part, in particular a film, wherein the flux baffle is formed by an element which is part of whose position is to be detected.
- the position sensor is attached to a seat rail of a seat of a vehicle, wherein by linear movement of the seat, the magnetic device is relatively moved relative to the position sensor, which is for example attached to the chassis (floor) of the vehicle.
- a combination of pick-off layer (pick-off film) and resistance layer takes place on an opposing partner film.
- the resistance side is constructed as follows.
- the basis is a film of amorphous metal. This can, but does not have to be thinly coated with a dielectric. This is thinly coated with a resistive paint.
- the pick-up foil as well as the partner foil with the applied resistance path also form contact springs and a magnet armature. The contact operation is carried out by an externally applied magnetic field, which is generated by a nearby brought permanent magnet or in an associated magnetic coil electrically.
- the two contact tongues (wave crest and wave trough) attract each other, touch each other at their vertex and thus close the electric circuit in which the resistance layer lies.
- the contact opens due to the effect again, ie the trough dissolves from the wave crest. Since the contact tongues are attracted only in the area of the magnet, a potentiometric circuit is formed. However, when the magnet is moved longitudinally relative to the position sensor, the shaft of the pick-off layer and / or the resistance layer rolls over the length of the position sensor.
- the position sensor according to the invention can find the following applications (without claim to completeness):
- the at least one resistance layer and / or the at least one Abgreifnah is formed like a finger.
- These fingers are aligned transversely to the longitudinal extent in a longitudinally formed position sensor and overlap at least partially so that they can come into contact with the action of the magnetic field of the magnetic device.
- This finger or comb-like configuration of the resistive layer or tapping layer is e.g. only in the lateral end region (ie, away from the region in which, for example, the Abgreiftik is clamped in the spacer) or can also reach into the region in which the respective layer is attached to the respective element, or even extend.
- the position sensor is attached to a seat rail of a seat of a vehicle, wherein with the Position sensor, the position of the seat with respect to the chassis of the vehicle to be detected.
- the magnetic device is attached to the seat.
- the seat is not moved for a long time, since the vehicle is always controlled by one and the same driver.
- the position sensor is designed as a potentiometer and a collector of the potentiometer is formed by an amorphous metal, or that the position sensor is designed as a reed switch and a switching contact of the reed switch is formed of an amorphous metal.
- a collector formed of the amorphous metal is particularly advantageous for a non-contact and therefore wear-free potentiometer whose shaft rolls wear-free and replaces the previous scraping grinder.
- the switch contacts are formed in a reed switch of the amorphous metal, so that also the wear-free is achieved.
- a bending beam system with applied strain gauges is advantageous.
- Amorphous metal foils are advantageous because they are very elastic and repeatable at a bending load. In combination with a magnetic device (for example a magnetic target), the following can be realized:
- Non-contact electronic switch can replace mechanical reed switches
- Magnetic detector o Non-contact displacement sensor
- Magnetic pulse counter o Proximity switch
- a magnetic position sensor is provided with the reference numeral 1.
- the position sensor 1 consists of an electrically non-conductive, non-magnetic support 2, on which a resistive layer 3 is arranged or fixed and spaced apart at least partially superposed a Abgreif für 4 is provided from an amorphous metal.
- the arrangement of the resistance layer 3 takes place, for example, in a recess in the carrier 2, wherein a further heel-shaped embodiment of the carrier 2 also receives the Abgreiftik 4 in the form of the film of an amorphous metal.
- a magnetic device which is movable relative to the position sensor 1.
- the previously described Elements of the position sensor are protected by a cover 6, wherein the cover 6, for example, also made of an electrically non-conductive, non-magnetic material and is connected, for example, in the side regions with the carrier 2.
- the upper portion of the cover 6 consists of a flux guide plate to increase the magnetic effect of the magnet 5, which in turn results in an advantageous manner that the entire position sensor 1 can build flatter.
- FIGS. 2 and 3 show different modes of operation of the position sensor 1. From FIG. 2 it can be seen that in the region of the magnetic device 5 the tapping layer 4 is pulled in the direction of the resistance layer, since the one pole of the magnetic device 5 pulls the tapping layer 4 in the direction of the resistance layer 3. This results in the recognizable in Figure 2 indentation.
- FIG. 3 shows that the tapping layer 4 is arranged on a lateral spacer 7 and is thus pulled onto the resistance layer 3 only parallel to the side of the spacer 7 in the region of the permanent magnet 5. Thus, when the magnet 5 is moved relative to the position sensor 1 (when viewing FIGS.
- the magnet 5 attracts the tapping layer 4 in the form of the foil in a shaft only in the area of the permanent magnet 5 and presses them on the resistive layer 3, so that the respective position of the magnet 5 relative to the position sensor 1 can be detected.
- the position sensor 1 consists of a Abgreifnah 4, which is netinstrument on the cover 6, which consists for example of a ferromagnetic material, on mag.
- the permanent magnet 5 now attracts the tapping layer 4 in the form of the foil again in the form of a clean wave only in the region of the magnet 5 and thus presses it onto the resistance layer 3.
- the same structure is shown in FIG. 5, but the magnet 5 is reversed, so that its magnetic field presses the tapping layer 4 in the opposite direction, with the result that the tapping layer 4 can be deliberately pushed away by the resistance layer 3. This is for example advantageous if the reversed permanent magnet 5 is once moved over the entire extension of the position sensor 1 to bring the Abgreifnah 4 in a defined starting position.
- a further permanent magnet 8 is present analogously to the structure of the position sensor 1 described above, the polarity of the two magnets 5, 8 being opposite, and furthermore two resistance layers 3 with a tapping layer 4 located therebetween. Due to the reverse polarity of the two magnets 5, 8, the Abgreiftik 4 is pressed or used in the region of the respective magnet once to the lower and once to the upper resistance layer 3. Thus, therefore, the position of the two magnets 5, 6 relative to the position sensor 1 can be detected.
- FIG. 1 A further embodiment of the position sensor 1 in section is shown in FIG.
- two resistance layers 3, 10, are present, between which the Abgreif Mrs 4 is interposed in the form of the film.
- a distance is present, so that upon movement of the permanent magnet 5 relative to the position sensor 1 and as a function of polarity of the magnet 5, the tapping layer 4 is either pulled to the lower resistance layer 3 or pressed against the upper resistance layer 10.
- the magnet 5 is, for example, a permanent magnet or an electromagnet and may be designed in the form of a block, rod, ring, disc or the like, in each case coordinated with the position sensor 1.
- FIG. 8 shows that again there are two resistance layers 3, 10 in which the tapping layer 4 arranged therebetween can be attracted or pushed down by magnets 5, 11 arranged above and below the position sensor 1.
- FIG. 9 While in the previous figures always individual magnets 5, 8, 11, which were arranged on one side or on the same side of the position sensor, are shown in FIG. 9, a single magnet 12 is shown with alternating pole sequence within this magnet 12. From this within the single magnet 12 resulting pole sequence, the tapping layer 4 is again used or pressed either to the lower resistance layer 3 or the upper resistance layer 4.
- FIG. 10 shows the structure of a position sensor 1, in which the at least one pick-off layer 4 is arranged between two spacers 13, 14, wherein these spacers 13, 14 are fixed by the cover 6 and the carrier, or a single spacer 15 is provided fixing the resistance layer 4 to the carrier 2 and to the cover 6, respectively.
- the configuration with the two spacers 13, 14 or the single spacer 15 corresponds to the embodiment shown in Figure 3, wherein in Figure 10, the peculiarity is that with the spacers (either 13, 14, or 15) not only a tapping 4 on Carrier 2 or on the cover 6 is set, but that two Abgreif harshen 4 are provided, which cooperate with the one resistive layer 3 (alternatively, a plurality of resistive layers).
- the flat tapping layers 4 (or else only one tapping layer 4) is fixed laterally between the lateral end of the carrier and cover 6, floats freely in the region of the resistance layer 3 and is pulled in the direction of the resistance layer 3 only when the magnet acts.
- FIG. 11 shows the position sensor 1 according to one of the embodiments as shown in FIGS. 1-10, wherein the position sensor 1 comprises a protective housing 16 made of a non-magnetic metal.
- a protective housing 16 made of a non-magnetic metal.
- This may be, for example, a metal such as aluminum, copper, brass, nickel silver or the like.
- the protective housing 16 surrounds the position sensor 1 at least partially (as shown in FIG. 11) or also completely, wherein, according to the embodiment in FIG. 11, flanges 17 are present on the sides which enclose the lateral areas of the carrier 2 and the cover 6.
- the side regions can also be glued together, soldered, welded or the like.
- the contacting of the resistance layer 4 and the Abgreiftik 3 (sensor film) to the outside is sealingly, for example, by heat seal, conductive adhesive, a Nietpresstagen, flanging shown or similar means / method.
- the contacting of the resistance layer 4 and the Abgreiftik 3 (sensor film) to the outside can be done open by a conductive rubber, soldering, welding or the like.
- FIG. 12 shows a further embodiment of the position sensor 1. Similar to the structure as shown in FIG. 1, this position sensor 1 has the carrier 2 provided with the resistive layer 3. Laterally spacers 13, 14 are present, in which the Abgreiftik 4 is clamped. On the opposite side of the one-piece spacer 15 is available again. About this arrangement, the cover 6 is arranged.
- an interface 18, in particular at the end of the position sensor 1 are mounted.
- This interface 18 includes a housing with an evaluation electronics, not shown here, which in turn can be connected via cables, connectors or the like with a downstream electronic devices.
- corresponding contacts 19, here e.g. Pins led out of the housing, wherein on the side of the position sensor 1 openings 20 are provided, which are prepared for example by punching.
- the position of the openings 20 corresponds to the contact pins 19, wherein the openings 20 and the associated pins 19, depending on their position with respect to the position sensor 1 have mechanical and / or electrical functions.
- the sensor data can be adapted to the most diverse requirements of customer evaluation units.
- the sensor is thus also protected from overloading and faulty switching on the part of the customer. Furthermore, damage to the sensor can be detected and reported to the evaluation unit.
- FIGS. 13 and 14 show a further embodiment of the position sensor 1. Shown again is the at least one pick-off layer 4 and the resistance layer 3, in which case the resistance layer 3 has a ferromagnetic core. This has the consequence that upon exposure to the magnetic field of the permanent magnet 5, both the resistance layer 3 and the Abgreifnah 4 wave-shaped deformed during relative movement of the permanent magnet 5. As a result, as in the embodiments described in the preceding figures,
- a permanent magnet 5 is always shown, with one pole pointing in the direction of the position sensor 1 and the other pole facing away from it.
- the magnet is always arranged on one side and or the other side of the position sensor 1.
- the magnet partially ring-shaped or annular or similar geometric design for example, horseshoe-shaped
- the poles rotated 90 degrees to the orientation shown either in the longitudinal direction or in the transverse direction of the position sensor 1 to this.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008020690 | 2008-04-24 | ||
PCT/EP2009/002989 WO2009130035A1 (en) | 2008-04-24 | 2009-04-23 | Magnetic position sensor comprising a tapping layer consisting of an amorphous metal |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2269004A1 true EP2269004A1 (en) | 2011-01-05 |
Family
ID=40957845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09733974A Withdrawn EP2269004A1 (en) | 2008-04-24 | 2009-04-23 | Magnetic position sensor comprising a tapping layer consisting of an amorphous metal |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110101966A1 (en) |
EP (1) | EP2269004A1 (en) |
DE (1) | DE102009018342A1 (en) |
WO (1) | WO2009130035A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090095075A1 (en) * | 2007-10-12 | 2009-04-16 | Yevgeniy Vinshtok | Sensor housing |
DE102010020372B4 (en) * | 2010-05-12 | 2020-07-09 | Metallux Ag | Position sensor |
TWI510768B (en) * | 2011-06-21 | 2015-12-01 | Ind Tech Res Inst | Force sensing device and force sensing system |
DE102012224386B3 (en) * | 2012-12-27 | 2014-02-13 | Sick Ag | Inductive sensor |
DE102016213514A1 (en) * | 2016-07-22 | 2018-01-25 | Continental Automotive Gmbh | Passive magnetic position sensor |
DE102016213510B4 (en) * | 2016-07-22 | 2019-05-29 | Continental Automotive Gmbh | Passive magnetic position sensor |
EP3343232B1 (en) | 2016-12-29 | 2021-09-15 | Roche Diagnostics GmbH | Laboratory sample distribution system and laboratory automation system |
DE102020209083A1 (en) * | 2020-07-21 | 2022-01-27 | Geze Gmbh | Drive for a wing |
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US4116682A (en) * | 1976-12-27 | 1978-09-26 | Polk Donald E | Amorphous metal alloys and products thereof |
FR2643499A2 (en) * | 1988-07-25 | 1990-08-24 | Mcb | POTENTIOMETER CONTROLLABLE BY REDUCED MECHANICAL CONSTRAINT |
DE4309442C2 (en) * | 1993-03-24 | 1996-09-12 | Vdo Schindling | Passive non-contact magnetic position sensor |
DE4339931C1 (en) | 1993-11-24 | 1995-03-30 | Daimler Benz Ag | Locator (position sensor, position encoder), in particular for the selector lever of a vehicle gear (transmission, gearbox) |
DE19526254C2 (en) | 1995-07-19 | 1998-01-29 | Mannesmann Vdo Ag | Passive magnetic position sensor |
US5968594A (en) * | 1996-06-28 | 1999-10-19 | Lam Research Corporation | Direct liquid injection of liquid ammonia solutions in chemical vapor deposition |
DE19648539C2 (en) | 1996-11-25 | 2000-04-13 | Mannesmann Vdo Ag | Passive magnetic position sensor |
DE19701704B4 (en) * | 1997-01-21 | 2004-03-25 | Siemens Ag | Device for indicating the level of a vehicle axle |
DE10018269B4 (en) * | 2000-04-13 | 2009-04-09 | Dr. Johannes Heidenhain Gmbh | scanning |
DE10119317A1 (en) * | 2001-04-19 | 2002-10-31 | Siemens Ag | Passive magnetic position sensor |
DE10308958A1 (en) * | 2003-02-28 | 2004-09-09 | Siemens Ag | Magnetically passive position sensor, method for manufacturing the magnetically passive position sensor |
DE102004004102B3 (en) | 2004-01-27 | 2005-01-27 | Siemens Ag | Magnetically passive position sensor for indicating a level in a motor vehicle's fuel tank has flexible contact elements in a magnet's range of movement |
DE102007055253A1 (en) | 2006-11-18 | 2008-05-21 | Hirschmann Automotive Gmbh | Magnetic position sensor for detecting position of vehicle seat, has gripping layer i.e. foil, arranged at distance to resistive layer, where gripping layer is made of ferro magnetic material and is electrically conductive |
EP2084498A2 (en) * | 2006-11-18 | 2009-08-05 | Hirschmann Automotive GmbH | Magnetic position sensor |
DE102008011713A1 (en) * | 2008-02-28 | 2009-09-03 | Continental Automotive Gmbh | Magnetic passive position sensor |
-
2009
- 2009-04-23 EP EP09733974A patent/EP2269004A1/en not_active Withdrawn
- 2009-04-23 US US12/920,537 patent/US20110101966A1/en not_active Abandoned
- 2009-04-23 WO PCT/EP2009/002989 patent/WO2009130035A1/en active Application Filing
- 2009-04-23 DE DE102009018342A patent/DE102009018342A1/en not_active Ceased
Non-Patent Citations (1)
Title |
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See references of WO2009130035A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102009018342A1 (en) | 2009-10-29 |
US20110101966A1 (en) | 2011-05-05 |
WO2009130035A1 (en) | 2009-10-29 |
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