WO2007014703A2 - Dispositif de mesure d'un niveau - Google Patents

Dispositif de mesure d'un niveau Download PDF

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Publication number
WO2007014703A2
WO2007014703A2 PCT/EP2006/007463 EP2006007463W WO2007014703A2 WO 2007014703 A2 WO2007014703 A2 WO 2007014703A2 EP 2006007463 W EP2006007463 W EP 2006007463W WO 2007014703 A2 WO2007014703 A2 WO 2007014703A2
Authority
WO
WIPO (PCT)
Prior art keywords
unit
receiving unit
transmitting unit
transmitting
signal
Prior art date
Application number
PCT/EP2006/007463
Other languages
German (de)
English (en)
Other versions
WO2007014703A3 (fr
Inventor
Joachim Benz
Original Assignee
Vega Grieshaber Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE102005036846.8A external-priority patent/DE102005036846B4/de
Application filed by Vega Grieshaber Kg filed Critical Vega Grieshaber Kg
Priority to EP06776476A priority Critical patent/EP1910785A2/fr
Priority to CN2006800284558A priority patent/CN101238358B/zh
Publication of WO2007014703A2 publication Critical patent/WO2007014703A2/fr
Publication of WO2007014703A3 publication Critical patent/WO2007014703A3/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves

Definitions

  • the present invention relates to an apparatus and a method for measuring a filling level of a medium.
  • the present invention relates to a device and a method for measuring a filling level of a filling material by means of distance determination of transmitting and receiving units.
  • level measuring instruments For measuring fill levels, such as levels in industrial containers or ship tanks, usually level measuring instruments are used, which measure fill levels by means of radar wave measuring technology.
  • the basic principle is based on emitting waves from an antenna in the direction of the medium, on whose surface the waves are reflected again and are received again by the transmitting unit.
  • transit time measurement i. by measuring the time from sending to receiving these pulses and by knowing the
  • Propagation speed of the waves thus the distance between the product and the antenna and thus the level height can be measured in a container.
  • This measurement principle is disclosed for example in DE 4407823.
  • the object is achieved by a device and by a method for measuring a filling level of a filling material with the features according to the independent patent claims.
  • an apparatus for measuring a filling level of a filling material wherein the device has at least one receiving unit, wherein the at least one receiving unit is adapted to float on a surface of the medium, and wherein the at least one receiving unit for determining the level is carried out by means of a distance measurement on the basis of a first signal emitted by at least one first transmitting unit and received by the at least one receiving unit.
  • an apparatus for measuring a filling level of a filling material wherein the device has at least one transmitting unit, wherein the at least one transmitting unit is adapted to float on a surface of the filling material, and wherein at least one receiving unit for determining the filling level by means of a distance measurement on the basis of a signal transmitted by the at least one transmitting unit and received by the at least one receiving unit.
  • a method of measuring a fill level of a fill comprising the steps of providing at least one receiving unit for swimming at a surface of the fill, and determining the fill level by measuring a distance between the at least one
  • Receiving unit and at least a first transmitting unit based on a transmitted from the at least one first transmitting unit and received by the at least one receiving unit first signal.
  • a method of measuring a fill level of a fill comprising the steps of providing at least one transmit unit for swimming at a surface of the fill, and determining the fill level by measuring a distance between the at least one Transmitting unit and at least one receiving unit based on a transmitted from the at least one transmitting unit and received by the at least one receiving unit signal.
  • a receiving unit (or a sending unit) may be introduced into a closed (or open) container and float on the contents due to their buoyancy characteristics, so that it always positions along the filling line of the filling material.
  • the receiving unit can receive signals or waves from transmitting units and determine a distance based on the transmitted information.
  • the transmitting unit can be positioned outside the container.
  • an enormous increase in safety is thus ensured.
  • the transmitting units can be satellites of a positioning system, such as GPS and / or Galileo, whose signals can be evaluated by the receiving unit and / or a connected evaluation or processing unit.
  • GPS and Galileo With a combination of GPS and Galileo, the number of transmitters can be increased and thus the resolution can be refined.
  • the device has a plurality of receiving units, wherein the receiving units buoyancy properties for swimming on or on a surface of the medium, wherein the receiving units for determining - 3 -
  • the filling level is carried out by means of a distance measurement on the basis of a signal emitted by at least one first transmitting unit and received by the receiving units.
  • the receiving units can cover different areas of the medium. For example, with viscous or solid fillers such as adhesive or other bulk material, different tips can form on the surface, which can be covered or scanned by multiple receiving units.
  • a failure of one of these units can be replaced.
  • sound waves, airborne sound waves, radio waves, microwaves, infrared waves and light waves are used to transmit the signals.
  • short waves sound waves, airborne sound waves, radio waves, microwaves, infrared waves and light waves are used to transmit the signals.
  • Distances between the at least one receiving unit and the at least one transmitting unit may be slowly propagating waves, such as sound waves, prove advantageous.
  • the receiving unit is set up in such a way that the distance of the at least one transmitting unit to the at least one receiving unit can be determined in particular by means of a transit time measurement of the signal transmitted by the first transmitting unit.
  • This first signal contains time information about the time of transmission. Together with the information of the time at which the signal has reached the receiving unit, and the propagation speed of the signal, the distance between transmitting and receiving unit can be calculated.
  • the signals can be stretched, for example, with the help of interference measurement or Abtastmessvon time, so as to increase the accuracy significantly.
  • laser techniques can be used, such as the Michelson interferometer.
  • the device further comprises at least one first transmitting unit for transmitting a first signal, which is received by the at least one receiving unit. If the receiving unit can be moved one-dimensionally with only one degree of freedom, a distance and a position of the receiving unit can be determined with a transmitting unit. In this case, a distance between the transmitting and receiving unit is calculated by measuring the transit time of the signal. In order to determine the position of the at least one receiving unit in three-dimensional space, for example, two position coordinates must be set, so that only the coordinate in the direction of the degree of freedom is variable. Together with the information about the geographical position of the transmitting unit, the position of the at least one receiving unit and thus of the filling level can be determined exactly.
  • the device can have at least one second transmitting unit for emitting a second signal, which can be received by the at least one receiving unit, wherein the first transmitting unit is arranged at a distance from the second transmitting unit.
  • the receiving unit can have two degrees of freedom and yet the position can be determined exactly.
  • the position of the at least one receiving unit is thus obtained in the intersection of the two distance lines, which each run from the transmitting to the receiving unit a two-dimensional area.
  • the knowledge of the position positions of the first and second transmission units is a prerequisite for obtaining an intersection of the distance lines. The farther the first and second transmitting units are spatially apart, the more accurate the distance measurement can be performed.
  • the third spatial coordinate of the receiving unit can be predetermined by a fixed, known spatial coordinate.
  • the device has at least one third transmitting unit for transmitting a third signal which can be received by the receiving unit, wherein the third transmitting unit is arranged at a distance from the first and the second.
  • the third transmitting unit is arranged at a distance from the first and the second.
  • Receiving unit can in turn determine the distance to the transmitting units, so that in the intersection of the distance lines, the current position of the at least one receiving unit is in three-dimensional space.
  • the at least one receiving unit is designed to be guidable along a container wall.
  • the receiving unit can be formed one-dimensionally drivable on the container wall and, for example, move only in a vertical orientation. If the receiving unit is one-dimensionally movable, the other two spatial coordinates can be specified.
  • the only unknown or variable of the spatial coordinates for example, the vertical position of the at least one receiving unit, and can be determined by only one signal sent by the transmitting unit, the spatial position.
  • the at least one receiving unit is designed to be two-dimensionally executable.
  • the receiving unit with two degrees of freedom is attached to the container wall in such a way that it can move horizontally or vertically, for example, then at least two transmitting units are needed, which can thus determine the two variable space coordinates.
  • the third spatial coordinate is determined.
  • the receiving unit may be controlled on the container wall and moved along the guides.
  • the at least one receiving unit can be moved over, for example, over the elevations and depressions of the product surface, thus traversing and measuring the surface structure of a product.
  • the content of the contents can be calculated by knowing the surface condition.
  • the at least one receiving unit can be equipped with sensors that automatically scan the surface of the medium and move the at least one receiving unit.
  • the sensors can be touch sensors, pressure sensors or optical sensors.
  • Device a processor unit for evaluating and controlling the signals, wherein the processor unit is configured to receive the signals and / or to send.
  • the at least one receiving unit is designed such that it can send signals to the processor unit and / or to the at least one transmitting unit.
  • the processor unit can receive a position of the at least one receiving unit and further evaluate the data thus obtained.
  • the Transmission of the signals may use various transmission techniques, such as Bluetooth, infrared, WLAN or radio signal technologies.
  • a variety of information with the signals or data can be sent and processed, such as time data, position data, geodetic coordinates, polar coordinates, cylindrical coordinates, spherical polar coordinates, geographical coordinates, distances from transmitting to receiving unit, distances from container bottom and / or - walls and time data.
  • Transmission units is indefinite. Furthermore, the plurality of information of the signals can be sent to the processor unit, which controls the device therefrom or otherwise can further process the information.
  • the at least one receiving unit comprises a timer.
  • the at least one transmitting unit as well as each of the plurality of transmitting units, comprises a timer.
  • the processor unit comprises a timer. The processor unit can measure the values of the times of the transmitting and receiving units and thus adjust and adjust the time values.
  • only the processor unit can include a timer and specify a uniform system time. Thus, it is possible to specify centrally a system time series which is uniform for all transmitting and receiving units. This can significantly reduce measurement inaccuracies.
  • timer elements for example, digital watches, quartz watches and atomic clocks are possible.
  • the receiving unit and the processor unit are integral and integral, i. as a common
  • the receiving unit and the processor unit can be manufactured as one component, which leads to considerable cost savings and advantages in the application of the device.
  • the device can use existing signals from conventional navigation systems.
  • the at least one receiving unit can use signals from the navigation systems for level measurement.
  • the signals also contain time information about the
  • the signals contain information about the position of the transmitting unit or the satellite, so that the exact position of the receiving unit can be determined by means of the distance.
  • Navigation systems which can be implemented in a system according to the invention and whose signals can be received by the at least one receiving unit are, for example, NASDA, GPS, digital GPS, local area DGPS, wide area DGPS, WAAS GPS, EGNOS. GPS, GLONASS, Galileo, MTSAT or Beidou signals.
  • Processing unit further provides a reference signal to compensate for inaccuracies in the distance measurement. Due to, for example, inaccurate time measurements between the time of transmission and reception, inaccuracies in the distance measurement can occur.
  • This can compensate the processor unit by providing a reference signal.
  • the processor unit is known its geographical position.
  • the processor unit also measures its own geographical position on the basis of the received signals of the at least one transmitting unit or of the satellite. If the measured position value deviates from the actual position value of the position of the processor unit, this can thus calculate the magnitude of the error. With this error value, the other measured values can be corrected, which results in a considerable improvement in the accuracy of the measurement.
  • the processor unit and / or the receiving unit may receive a reference value from another reference station to correct the measurement error.
  • a reference value For example, regional D-GPS (differential GPS) transmitting stations are often provided that send a reference signal for correcting GPS signals.
  • the receiving unit, each transmitting unit and / or the processor unit comprises a power supply.
  • the energy supply can be provided by batteries, solar cells, battery and / or a power supply.
  • a power supply can be provided by means of a sliding contact by contacting the receiving unit with the container wall, by means of electromagnetic transmission and / or by means of oscillating circuits.
  • a contactless energy transfer is possible.
  • the power supply for the float may also be by means of the guide member.
  • the device comprises at least one transmitting unit, wherein the at least one transmitting unit has buoyant properties for floating on a surface of the filling material, and wherein at least one receiving unit for determining the filling level by means of a distance measurement based on the at least one first transmitting unit - U -
  • At least one transmitting unit is introduced into a container, wherein these signals for distance measurement to at least one receiving unit, which is attached for example to the container wall, sends.
  • a specific transit time of a signal transmitted by at least one first transmission unit is measured in order to determine the distance of the transmission unit to the reception unit.
  • a specific transit time of a first and second signal transmitted by at least one first and one second transmitting unit is measured, in order thus to determine the distance of the transmitting unit to the receiving unit.
  • a specific transit time is determined by means of at least three signals transmitted by at least three transmission units in order to determine the distance of the transmission unit to the reception unit.
  • the receiving unit is guided on a wall, for example a container wall.
  • the receiving unit can be guided one-dimensionally, two-dimensionally or three-dimensionally on a wall, for example a container wall.
  • a signal is sent or received by means of a processor unit.
  • information can be sent from the receiving unit or a transmitting unit to the processor unit or else from the processor unit
  • Information is sent to the receiving unit or the transmitting unit.
  • a system time can thus be synchronized and certain system times can be measured.
  • a time difference of a signal between leaving the at least one transmitting unit until receiving the signal from the receiving unit and / or the processor unit is measured, for example by means of a timer.
  • the system time can be specified centrally by a unit, such as the processor unit.
  • a decentralized time management is possible, in which each unit, for example, each transmitting, receiving and processing unit, has a timer. The timers can then be synchronized.
  • signals and data are received from satellites.
  • fill levels in open waters or containers can be measured, wherein first a receiving unit is introduced into a product to be measured and from the distance from the receiving unit to at least one transmitting unit is measured, wherein due to the distance determination of the receiving unit to a Sender unit a level can be determined.
  • the receiving unit can be introduced into an open water or an open container and, without taking any precautionary measures, the filling level height can be determined with a processor unit.
  • this exemplary system can be implemented as a lightweight and portable measuring device, so that fill levels can be measured at any time without much effort.
  • the absolute value of the ground can already be known by, for example, a blank measurement, on the other hand a reference to e.g. the level of the sea level, or normal zero (NN) possible.
  • N normal zero
  • the total depth is not relevant but a relative measurement sufficient, since only a changing filling or level of the contents is of interest.
  • a multi-component product for example, a product with oil and water shares
  • a plurality of floats whose buoyancy properties are chosen so that at each interface (eg water oil and oil-air) a respective float is present. Then partial fill levels of the individual media or units can be measured separately.
  • a novel level measurement technique is introduced, which represents a completely new approach over previous concepts.
  • About the position determination by means of a floating element in an open container it is possible to reduce the technical complexity and thus the cost.
  • it is possible to use already existing navigation systems, such as GPS or Galileo so that even can be dispensed with the separate provision of the transmitting units for position determination.
  • these new approaches to level measurement it is thus possible to determine levels that are more efficient and less expensive.
  • the container should be permeable to electromagnetic waves (for example made of an electrically insulating material).
  • the container can be configured without a lid.
  • the distance measurement may be wireless (e.g., via phase information or travel time information of electromagnetic waves) or wired between the transmitting and receiving units (e.g., by time-of-flight measurement of an electrical signal through a conductor between the transmitting and receiving units).
  • wireless e.g., via phase information or travel time information of electromagnetic waves
  • wired between the transmitting and receiving units e.g., by time-of-flight measurement of an electrical signal through a conductor between the transmitting and receiving units.
  • Well-known velocity information of waves (sound or electromagnetic) or phase information e.g., in the case of interference of coherent radiation
  • Fig. 1 is a schematic representation of an apparatus for measuring a
  • FIG. 2 is another illustration of an apparatus for measuring a level with reference to existing positioning systems in accordance with an exemplary embodiment of the invention
  • FIG. 3 shows a schematic representation of a possible construction of a processor unit
  • Fig. 4 is a schematic representation of an apparatus for measuring a level with positioning systems with reference to terrestrial reference points.
  • Fig. 5 is a schematic representation of an exemplary embodiment of the method according to the present invention.
  • Fig. 6 and 7 is a schematic side view and top view of a device for measuring a level, the receiving unit is controllable.
  • FIG. 1 shows a schematic representation of a device according to the invention for measuring fill levels.
  • a level of a product 4 is measured in a container 3.
  • Receiving unit 5 is due to its buoyancy properties at (or close to) a surface of the medium 4.
  • At least one transmitting unit 14 sends signals to the at least one receiving unit 5, resulting in a distance between receiving unit 5 and transmitting unit 14 can be determined. Due to the knowledge of the position of the container bottom and the position of the at least one receiving unit 5, the level or the container contents.
  • the device has a second, a third and / or a multiplicity of transmitting units 14 ', 14 "which can be fastened, for example, to the container surface and / or guided vertically.
  • the receiving unit 5 for example, guided vertically, it is only one degree of freedom open. Ideally, therefore, the height of the medium 4 can be measured by means of only one transmitting unit 14, since apart from the variable, vertical space coordinate, the two further space coordinates are already defined and known by the guide 2.
  • a guidance-free receiving unit 5 In the case of a guidance-free receiving unit 5, it can move freely in three-dimensional space on the surface of the filling material 4, so that at least three degrees of freedom thus require three or more transmitting units 14, 14 ', 14 ", the more transmitting units 14, 14', 14 "are present, the more accurate and trouble-free, a measurement of the level height can be realized.
  • the receiving unit 5 in the guide 2 can be controlled so as to scan the surface of the medium.
  • the guide 2 in this case has a movable unit which moves the receiving unit on the Gregutober Structure. Especially with viscous products or bulk material, all elevations and depressions of the product surface can thus be detected. By means of sensors mounted on the receiving unit, the movement for scanning the product surface can be automated.
  • the receiving unit comprises an antenna 12 in order to be in contact with the transmitting units 14, 14 ', 14 ".
  • a processor unit 1 with an antenna 13 can likewise be fastened, for example, on the container surface and be in contact with a process control device 6.
  • the processor unit can receive the data about the height of the receiving unit 5 and the container bottom, which calculates the filling level.
  • the signals can convey certain information on the basis of which the distance results. ⁇ br/> ⁇ br/> One possibility is based on transit time measurements of the transmission signals determines, with which the distance is measured on the basis of the constant or determinable propagation velocity of the waves (eg electromagnetic waves or sound waves)
  • the signals thereby contain the information about the time of sending the signal, while the receiving unit 5 records the time of the reception of the signals. Therefore, it is necessary to specify an exact system time that matches the send and receive units.
  • highly accurate atomic clocks can be integrated into the transmit 14, 14 ', 14 "and receiver 5 for precise determination of the distance to integrate a central timer, which thus determines transmission time and reception time exactly or specifies a common system time.
  • Fig. 2 shows another embodiment of the present invention.
  • Level measuring device also has a container 3 with a product 4, wherein on the surface of the product a receiving unit 5 rests.
  • Fig. 2 omits the transmitting units 14, 14 ', 14 "on the container surface and uses existing signals from existing navigation systems
  • the receiving unit can receive the signals from the satellites and determine the filling level height therefrom by transit time measurement
  • a GPS satellite transmits the position of the transmitting satellite and the time at which he sent the signal
  • Receiving unit 5 possible to determine an exact position determination and thus the height of the medium.
  • terrestrial systems that support typical navigation techniques such as GPS or Galileo can also be used.
  • DGPS differential GPS technology
  • a further reference unit for example, on the container surface, be fixed, whose position is already known.
  • This so-called stationary reference receiver with a known position also measures its relative position via the satellite signals and compares these with its absolute, already known position. From this, the position error is determined and local correction data is calculated. The correction data then corrects the measured position data of the receiving unit 5.
  • the stationary reference receiver can be integrated, for example, in the evaluation unit 1.
  • differential measuring method it is also possible to correct several floats (for example in different containers) with a common reference.
  • the receiving unit 5 may comprise, for example, a GPS receiver 8, a position value transmission device 9, a power supply 10 and optionally a minimum power consumption control device 1 1.
  • the power supply can be ensured by batteries, solar cells, batteries or via a connection with a power supply. In the event that the receiving unit 5 is guided along a container surface, the power supply can be ensured via a sliding contact. Also possible are power supplies via electromagnetic transmissions or by means of inductive or capacitive resonant circuits. These types of power supply can be found in the Transmitting units 14, 14 ', 14 ", in which at least one receiving unit 5 or in the processor unit 1 are used.
  • Fig. 4 shows a device for measuring levels, for example in an open container. To increase the accuracy of known
  • Reference point the GPS specific errors are minimized. Correcting all run times using a correction factor calculated from a current reference position minus the actual reference position.
  • the reference unit does not have to be mounted directly on the container, so that several receiving units 5 or 5 float in different containers or basins can use the same correction factor of a common reference sensor.
  • the position coordinates of the reference unit are known.
  • the reference unit measures its own position coordinates via the navigation system. From the difference of the known position of the reference unit and the erroneous measured value, which is determined via the navigation system, a correction factor can be calculated. Subsequently, one can add to the error-prone values measured by the navigation system of the at least one receiving unit the correction factor and thus obtains exact position coordinates of the receiving unit 5.
  • the position coordinates are determined from four or more satellites 1 ⁇ 7 ", 7", 7 "".
  • the system is much more stable due to the redundancy of the transmitting units or satellites.
  • Fig. 5 shows an exemplary embodiment of the method.
  • a receiving unit 5 is introduced into an open water.
  • the receiving unit 5 can determine its position via conventional navigation systems, such as GPS or Galileo exactly.
  • a reference value of the height of the bottom of the open water or of the open container 15 the exact fill level height can thus be calculated via a processor unit 1.
  • the receiving unit 5 can therefore be connected wirelessly or by wire to a transmitting unit 7, 14 or a processor unit 1 in order to perform transit time measurements of waves for distance determination.
  • the total depth can be determined by comparison with normal zero (NN) or by means of an initial measurement in the unfilled state. Often, only a level change is relevant, so that the knowledge of the total depth is unnecessary.
  • NN normal zero
  • the sea level can be used, which can be dispensed with a determination of a reference point.
  • Figs. 6 and 7 show an apparatus for measuring levels according to the present invention.
  • the receiving unit 5 is connected to a movable guide unit 2.
  • This guide unit 2 can for example be attached to the ceiling of a container and move the receiving unit 5 via an inhomogeneous surface structure of the product surface in, for example, x and y direction.
  • the movement in the z-direction of the receiving unit 5 is achieved by the hydrostatic buoyancy force or the Archimedian principle.
  • the receiving unit 5 or the guide unit 2 can be equipped with sensors, such as touch sensors, with which the product surface is scanned and the receiving unit is controlled in the z direction.
  • a transmitting unit 14 can be attached which moves with the guide unit 2 and thus likewise with the receiving unit 5. This may be in the direction of the z-axis the distance and thus the level can be determined.
  • the measurement via a plurality of permanently mounted transmission units 14 or satellites 7 of a navigation system is also possible.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne un dispositif de mesure d'un niveau d'un produit de remplissage (4), dispositif comprenant une unité réceptrice (5) présentant des propriétés de portance lui permettant de flotter à la surface dudit produit de remplissage. L'unité réceptrice (5) mesure, sur la base d'une mesure de distance réalisée suivant un premier signal émis par au moins une première unité émettrice (14, 7) et reçu par l'unité réceptrice, la distance entre l'unité émettrice et l'unité réceptrice, permettant ainsi de déterminer le niveau.
PCT/EP2006/007463 2005-08-04 2006-07-27 Dispositif de mesure d'un niveau WO2007014703A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06776476A EP1910785A2 (fr) 2005-08-04 2006-07-27 Dispositif de mesure d'un niveau
CN2006800284558A CN101238358B (zh) 2005-08-04 2006-07-27 用于测量料位的装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US70560105P 2005-08-04 2005-08-04
DE102005036846.8 2005-08-04
US60/705,601 2005-08-04
DE102005036846.8A DE102005036846B4 (de) 2005-08-04 2005-08-04 Vorrichtung zum Messen eines Füllstands

Publications (2)

Publication Number Publication Date
WO2007014703A2 true WO2007014703A2 (fr) 2007-02-08
WO2007014703A3 WO2007014703A3 (fr) 2007-04-19

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WO (1) WO2007014703A2 (fr)

Cited By (5)

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WO2009000283A1 (fr) * 2007-06-22 2008-12-31 Siemens Aktiengesellschaft Convertisseur de mesure de niveau de remplissage
EP2738528A1 (fr) * 2012-11-28 2014-06-04 Airbus Operations GmbH Système de mesure de niveau de remplissage et procédé pour déterminer un niveau de remplissage
CN104614050A (zh) * 2015-01-25 2015-05-13 渭南师范学院 一种磁敏传感器及其制备工艺
DE102016210416A1 (de) * 2016-06-13 2017-12-14 Vega Grieshaber Kg Messanordnung zum Ermitteln eines Füllstands
DE102020114771A1 (de) 2020-06-03 2021-12-09 InterEnviroCon GmbH Pegelstandsmesser

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WO2009000283A1 (fr) * 2007-06-22 2008-12-31 Siemens Aktiengesellschaft Convertisseur de mesure de niveau de remplissage
EP2738528A1 (fr) * 2012-11-28 2014-06-04 Airbus Operations GmbH Système de mesure de niveau de remplissage et procédé pour déterminer un niveau de remplissage
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DE102016210416A1 (de) * 2016-06-13 2017-12-14 Vega Grieshaber Kg Messanordnung zum Ermitteln eines Füllstands
DE102020114771A1 (de) 2020-06-03 2021-12-09 InterEnviroCon GmbH Pegelstandsmesser
DE102020114771B4 (de) 2020-06-03 2023-03-30 InterEnviroCon GmbH Pegelstandsmesser-Messsystem und Verwendung

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