• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Apparatus for determining at least one physical quantity in structures, comprising a pipe (1) arranged in or on the structure and at least one sensor arrangement (2) for receiving the physical variable, the sensor arrangement preferably extending over the entire length of the pipe (1) and positively with the tube (1) is in communication.
    公开号:AT519273A1
    申请号:T50965/2016
    申请日:2016-10-21
    公开日:2018-05-15
    发明作者:Ing Andreas Klarer Dipl；Kurt Kogler Ing
    申请人:Hottinger Baldwin Messtechnik Gmbh；Zueblin Spezialtiefbau Gmbh；
    IPC主号:
    专利说明:

    Summary
    Device for determining at least one physical quantity in structures, comprising a tube (1) arranged in or on the structure and at least one sensor arrangement (2) for recording the physical quantity, the sensor arrangement preferably extending over the entire length of the tube (1) and is positively connected to the tube (1).
    Fig. 1/21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    Device for determining physical quantities in buildings
    The invention relates to a device for determining physical quantities in buildings, comprising a pipe arranged in or on the building and a sensor.
    The use of sensor arrangements, so-called inclinometers, is known from the prior art, which are used to monitor the inclination of construction pits, bridges, tunnels, roads, dams, slopes or other structures. Before such a measurement can take place, a specially made inclinometer tube is fixedly arranged in or on the building, which due to its construction is able to adapt to a certain extent to the movement of the building. For this purpose, the inclinometer tube is, for example, poured into a borehole created for this purpose by means of concrete or cement.
    To carry out a measurement, a portable inclinometer probe is inserted into the existing inclinometer tube, which has circumferential grooves for this purpose, which includes a tilt or position sensor. By continuously inserting the probe, determining the lateral position and continuously measuring the inclination of the inclinometer probe, the path of the probe in three-dimensional space and thus the course of the inclinometer tube can be determined.
    The problem with such inclinometers is that the measurement is time-consuming and it cannot be excluded that inaccuracies in the measurement of the lateral position occur when the inclinometer probe is inserted into the inclinometer tube, which is often very long.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    In addition, when measuring the temperature of the building at the same time, a certain waiting time must be observed in each measuring position so that the temperature sensor on the inclinometer probe adapts to the ambient temperature, which greatly increases the measuring time.
    The object of the invention is therefore to solve these and other problems of existing devices for determining physical quantities in buildings and to create a device which makes it possible in a simple manner to enable accurate and long-term robust measurement of physical quantities in buildings.
    These and other objects are achieved according to the invention by a device which comprises a pipe arranged in or on the structure to be measured and at least one sensor arrangement for recording the physical size, the sensor arrangement preferably extending over the entire length of the pipe and in a form-fitting manner with the pipe communicates.
    As a result, the time-consuming measuring process by fitting the sensor arrangement into the pipe with a precise fit is unnecessary, since the sensor arrangement with the individual sensors, for example inclination sensors, is already arranged in the pipe and is positively connected to it.
    The fact that the sensor arrangement preferably extends over the entire length of the tube makes it possible to dispense with the cumbersome determination of the current position of the sensor arrangement along the tube, especially since the position of the sensor arrangement positively connected to the tube is determined only once in advance when the sensor arrangement is positively inserted got to.
    The device according to the invention is particularly suitable for measuring and monitoring subsidence and deformation in geological structures and for monitoring fault zones, sliding slopes and technical structures such as tunnels, bridges, underpasses or the like.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT) Züblin Spezialtiefbau GmbH, 1220 Vienna (at) According to the invention it can be provided that the sensor arrangement comprises a carrier which preferably extends over the entire length of the tube and is form-fitting with the tube communicates. The carrier serves as a holder for the individual sensors.
    The position of the individual sensors transverse to the longitudinal extension of the tube is determined by the carrier and it can also be ensured that differential sensors arranged in pairs come to lie at the same point along the longitudinal extension of the tube.
    According to the invention it can be provided that the carrier is at least partially fixed to the tube via a fixing means. The fixing means can in particular be synthetic resin, which is introduced into the tube with the sensors after the form-fitting introduction of the carrier, fixes the position of the sensor arrangement and forms a force fit between the sensor arrangement and the tube.
    This ensures that the sensor arrangement maintains its position relative to the pipe for a very long time and is therefore suitable for detecting displacements of the pipe with high accuracy even over long periods of time without losing its own position relative to the pipe. The desired measuring direction can be set by aligning the pipe.
    According to the invention, it can be provided that the carrier has a stiffness that is preferably at least a factor of 10 higher transversely to its longitudinal extension than along its longitudinal extension. It is thereby achieved that the beam can be easily bent in one dimension transverse to the longitudinal extension and thus takes over changes in the inclination of the tube in this dimension, but remains rigid in the other dimension transverse to the longitudinal extension.
    This ensures that the sensors arranged on this carrier only detect the changes in inclination in a defined dimension. In the direction of the longitudinal extension of the tube, it can be provided that the carrier has the highest possible rigidity.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT) Züblin Spezialtiefbau GmbH, 1220 Vienna (at) According to the invention it can be provided that the carrier can be rolled up along its longitudinal extension for simplified storage. This is a further advantage, which goes hand in hand with the stiffness selected differently and facilitates the assembly of the device, in particular with very long pipes. This makes it possible to pre-manufacture the carrier with the mounted sensor arrangement and to transport it to the construction site in a length of, for example, 250 m or more in a rolled-up state, and to install it there in one work step, that is to say without complex screw connections or the like, into the previously manufactured pipe.
    According to the invention, it can in particular be provided that the carrier is designed as a strip-like band or as a lamella and preferably comprises glass fiber reinforced plastic, for example CarboDur. The carrier can in particular be designed as a CarboDur lamella with a rectangular cross section of approximately 50 mm x 15 mm.
    According to the invention, it can further be provided that the sensor arrangement comprises at least one inclination sensor, at least one temperature sensor, or both types of sensors. The individual sensors can be spaced apart in the longitudinal direction of the tube. A sensor system running in the longitudinal direction of the tube can also be provided, which enables the acquisition of measurement data at defined intervals or continuously along the longitudinal extent of the tube. Moisture sensors can also be provided.
    The inclination sensor can in particular be designed as a differential sensor and particularly preferably as a system consisting of two flexible optical conductors, for example glass fibers, arranged next to one another. In particular, temperature-compensated FBG (Fiber Bragg Gating) sensors can be used to detect the inclination of the glass fibers used.
    According to the invention it can be provided that the inclination sensor comprises a first glass fiber and a second glass fiber. According to the invention, both glass fibers can be arranged on the carrier at a defined distance. It can also be provided that the glass fibers are directly connected to the tube in a form-fitting manner without a carrier.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT) Züblin Spezialtiefbau GmbH, 1220 Vienna (at) According to the invention it can be provided that the sensor arrangement comprises a carrier, the first glass fiber and the second glass fiber being arranged on opposite sides of the carrier , This can be the narrow or the wide sides of a band-shaped or lamellar support.
    According to the invention, it is provided that the sensor arrangement, preferably the carrier with the sensor arrangement, is inserted into grooves provided on the inner circumference of the tube. In a particularly advantageous manner, this enables the use of known inclinometer tubes which have such grooves on their inner circumference for the introduction of the inclinometer probes. Furthermore, the oriented installation of the sensor arrangement on the construction site is facilitated by inserting the carrier into the grooves.
    According to the invention, it can be provided that a first sensor arrangement and a second sensor arrangement are provided, the second sensor arrangement being oriented essentially normally to the first sensor arrangement. The first and second sensor arrangement can each comprise a first and a second glass fiber for determining the inclination in one dimension.
    According to the invention, it can in particular be provided that the glass fibers of the first sensor arrangement and the glass fibers of the second sensor arrangement are arranged in grooves of 90 ° to each other on the inner circumference of the tube, for example clamped, inserted or glued.
    According to the invention, it can be provided that the first sensor arrangement comprises a first carrier and the second sensor arrangement comprises a second carrier, the first carrier and the second carrier being oriented essentially normally to one another. For this purpose, the first carrier and the second carrier can be designed as preconstructed cross-shaped spacers or the like or comprise such cross-shaped spacers.
    According to the invention, it can in particular be provided that the first carrier and the second carrier are designed as a strip-like band or lamella and have corresponding tabs and grooves, so that the carriers can be plugged together at an angle of essentially 90 °.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    According to the invention, it can be provided that the first sensor arrangement and the second sensor arrangement are arranged in mutually opposite, preferably mutually offset grooves on the inner circumference of the tube.
    According to the invention, it can be provided that the carrier comprises a flexible plastic pipe held in the pipe by pipe clamps. In this case, at least a first pair of glass fibers, preferably also a second pair of glass fibers, which are arranged in opposite circumferential recesses in the plastic tube, can be provided as the sensor arrangement.
    Further features according to the invention result from the claims, the description of the exemplary embodiments and the drawings. The invention is explained in more detail below on the basis of non-exclusive exemplary embodiments.
    1 shows a first embodiment of a device according to the invention. A tube 1 is arranged in an outer, hatched hole. A sensor arrangement 2 is provided in the interior of the tube 1, which comprises a carrier 3 and a multiplicity of sensors. The carrier 3 is inserted on its narrow sides in a form-fitting manner in grooves 8 of the tube 1 provided on the circumferential side, so that the carrier 3 follows a displacement or change in the inclination of the tube 1.
    To fix the sensor arrangement 2 inside the tube 1, the tube 1 is filled with a fixing agent 4, for example synthetic resin or the like. The pipe 1 is inseparably connected to the borehole or the external structure by means of concrete, cement or the like, so that soil deformations are passed on directly to the pipe 1. Of course, the tube 1 can also be connected to the structure to be measured in a different way, for example screwed or welded to it.
    2 shows a schematic representation of the sensor arrangement 2 comprising a band-shaped carrier 3 with two light-conducting media, for example glass fibers 6, 7, arranged on opposite flat sides. This arrangement of the glass fibers 6, 7 serves to measure the difference in the bending of the carrier 3 in one Level.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    The carrier 3 on the one hand ensures that the glass fibers 6, 7 are at a defined distance from one another. On the other hand, the fixing of the glass fibers 6, 7 on the carrier also ensures that the defects in the glass fibers 6, 7 installed at predetermined positions for the detection of bending are always on the same longitudinal extension along the tube 1.
    This increases the accuracy and robustness of the inclination measurement in a simple manner and also ensures it in the long term.
    The longitudinal extent of the carrier 3 is indicated in Fig. 2 with the dashed arrow 5. The carrier 3 is made of a glass fiber reinforced plastic and has in a first dimension 9 transversely to the longitudinal extent a much higher rigidity than in a second dimension 10 transversely to the longitudinal extent. This ensures that the glass fibers 6, 7 preferably detect the inclination in a predefined dimension while counteracting bending of the carrier in the other dimension. For this purpose, it is particularly advantageous if the tube, as mentioned above, is filled with a synthetic resin or a similar, to a certain extent, flexible fixing agent. In addition, this enables easy transportation and storage of the carrier 3 in the rolled-up state.
    3 shows a further embodiment of the device according to the invention. In this embodiment, the sensor arrangement 2 does not comprise a separate carrier, since the individual sensors are arranged directly in the grooves 8 of the tube 1.
    The glass fiber pairs 6, 7 and 6 ″, 7 ″ that belong together for a difference measurement are arranged in opposite grooves 8, so that a measurement of the bending of the tube in two dimensions is made possible. By providing the grooves 8 at a defined distance and angle to one another, sufficient accuracy of the measurement is ensured in this exemplary embodiment even without a carrier.
    FIG. 4 shows a further exemplary embodiment of the signal arrangement 2 according to the invention, comprising a first carrier 3 and a second carrier 3 '. The two supports each have opposite glass fibers 6, 7 and 6 ″, 7 ″ on their narrow sides.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    The carriers 3, 3 'are arranged essentially at right angles to one another, this being achieved in particular by the carriers 3, 3' having corresponding tabs and grooves, so that the carriers (3, 3 ') are at an angle of essentially 90 ° are pluggable.
    5 shows a further exemplary embodiment of the device according to the invention. A tube 1 is arranged in an outer, hatched hole. A sensor arrangement 2 is provided in the interior of the tube 1, which comprises a carrier 3 and a multiplicity of sensors. The carrier 3 is inserted on its narrow sides in a form-fitting manner in grooves 8 of the tube 1 provided on the circumferential side, so that the carrier 3 follows a displacement or change in the inclination of the tube 1.
    To fix the sensor arrangement 2 inside the tube 1, the tube 1 is filled with a fixing agent 4, for example synthetic resin or the like. The pipe 1 is inseparably connected to the borehole or the external structure by means of concrete or cement, so that soil deformations are passed on directly to the pipe. Of course, the tube 1 can also be connected to the structure to be measured in a different way, for example screwed or welded to it.
    In this exemplary embodiment, too, the sensor arrangement 2 comprises a band-shaped carrier 3 with two light-conducting media, for example glass fibers 6, 7, arranged on opposite flat sides. In contrast to the exemplary embodiment in FIG Flat sides of the carrier 3 connected. For this purpose, the spacers are firmly connected to the carrier 3, for example glued on, and have grooves for introducing the fastening means 12 provided with the glass fibers 6, 7.
    FIGS. 6 and 7 show a further exemplary embodiment of an inventive
    Contraption. A tube 1 is arranged in an outer, hatched hole. A sensor arrangement 2 is provided in the interior of the tube 1, which comprises a carrier and a multiplicity of sensors.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (AT) The carrier comprises a multi-part pipe clamp with an upper clamp body 3 'and a lower clamp body 3' ', which are screwed together. The pipe clamp has two narrow sides which are inserted in a form-fitting manner in grooves 8 of the pipe 1 provided on the circumferential side, so that this embodiment of the carrier also follows a displacement or change in the inclination of the pipe 1.
    The upper clamp body 3 'and the lower clamp body 3' 'of the pipe clamp define an opening into which a flexible plastic pipe 13, preferably a PVC pipe, is inserted. This plastic tube 13 has on the circumference four recesses offset by approximately 90 ° from one another for receiving and fixing the opposing pairs of glass fibers 6, 7 and 6 ″, 7 ″.
    The plastic tube 13 can preferably have an elliptical cross section with a length of the main axis of approximately 25 mm and the secondary axis of approximately 16.5 mm. The four grooves for receiving the two pairs of glass fibers can have a dimension of approximately 1 mm to 3 mm.
    In particular, as shown in FIG. 7, it can be provided that the plastic pipe is held in sections in the pipe 1 only by the pipe clamp. The pipe clamp is made of a rigid, preferably metallic material in order to pass on movements of the pipe 1 directly to the pairs of glass fibers.
    To fix the sensor arrangement 2 inside the tube 1, the tube 1 is again filled with a fixing agent, for example synthetic resin or the like. The pipe 1 is inseparably connected to the borehole or the external structure by means of concrete or cement, so that soil deformations are passed on directly to the pipe. Of course, the tube 1 can also be connected to the structure to be measured in a different way, for example screwed or welded to it.
    / 21
    54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    权利要求:
    Claims (17)
    [1]
    claims
    1. Device for determining at least one physical quantity in structures, comprising a tube (1) arranged in or on the structure and at least one sensor arrangement (2) for recording the physical quantity, characterized in that the sensor arrangement preferably extends over the entire length of the tube (1) extends and is positively connected to the tube (1).
    [2]
    2. Device according to claim 1, characterized in that the sensor arrangement (2) comprises a carrier (3) which preferably extends over the entire length of the tube (1) and is positively connected to the tube (1).
    [3]
    3. Device according to claim 2, characterized in that the carrier (3) is at least partially connected to the tube (1) via a fixing means (4), for example synthetic resin.
    [4]
    4. Device according to one of claims 2 or 3, characterized in that the carrier (3) transversely to its longitudinal extent (5) has a preferably at least a factor of 10 higher stiffness than along its longitudinal extent (5).
    [5]
    5. Device according to one of claims 2 to 4, characterized in that the carrier (3) can be rolled up for simplified storage along its longitudinal extent (5).
    [6]
    6. Device according to one of claims 2 to 5, characterized in that the carrier (3) is designed as a strip-shaped band or as a lamella and preferably comprises glass fiber reinforced plastic.
    [7]
    7. Device according to one of claims 1 to 6, characterized in that the sensor arrangement (2) comprises an inclination sensor and / or a temperature sensor.
    11/21
    11 54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    [8]
    8. The device according to claim 7, characterized in that the
    Inclination sensor comprises a first glass fiber (6) and a second glass fiber (7).
    [9]
    9. The device according to claim 8, characterized in that the sensor arrangement (2) comprises a carrier (3), the first glass fiber (6) and the second glass fiber (7) being arranged on opposite sides of the carrier (3).
    [10]
    10. Device according to one of claims 1 to 9, characterized in that the sensor arrangement (2), preferably the carrier (3), is inserted into the grooves (8) provided on the inner circumference of the tube (1).
    [11]
    11. The device according to one of claims 8 to 10, characterized in that the glass fibers (6, 7) via spacers (11) and / or fastening means (12) are connected to the carrier (3).
    [12]
    12. The device according to one of claims 1 to 11, characterized in that a first sensor arrangement (2) and a second sensor arrangement (2 ') are provided, the second sensor arrangement (2') being oriented substantially normal to the first sensor arrangement (2) is.
    [13]
    13. The apparatus according to claim 12, characterized in that the first sensor arrangement (2) comprises a first carrier (3) and the second sensor arrangement (2 ') comprises a second carrier (3'), the first carrier (3) and the second Carriers (3 ') are oriented essentially normally to one another.
    [14]
    14. The apparatus according to claim 13, characterized in that the first T carrier (3) and the second carrier (3 ') are designed as a strip-shaped band or lamella and have corresponding tabs and grooves, so that the carrier (3, 3') in can be plugged together at an angle of essentially 90 °.
    12/21
    12 54676 / AG / Hottinger Baldwin Messtechnik GmbH, 230 Vienna (AT)
    Züblin Spezialtiefbau GmbH, 1220 Vienna (at)
    [15]
    15. The apparatus according to claim 12, characterized in that the first sensor arrangement (2) and the second sensor arrangement (2 ') are arranged in opposite grooves (8) on the inner circumference of the tube (1).
    [16]
    16. The device according to one of claims 2 to 15, characterized in that the carrier (3) comprises a flexible plastic tube (13) held by pipe clamps in the tube (1).
    [17]
    17. The apparatus according to claim 16, characterized in that as a sensor arrangement (2) at least a first pair of glass fibers (6, 7), preferably also a second pair of glass fibers (6 ', 7'), are provided, which are in opposite circumferential recesses of the plastic tube ( 13) are arranged.
    13/21
    14/21
    2.4
    6 8
    15/21
    3.4
    16/21
    4.4
    17/21 Austrian
    Patent Office
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    同族专利:
    公开号 | 公开日
    EP3529558A1|2019-08-28|
    WO2018073369A1|2018-04-26|
    AT519273B1|2018-12-15|
    引用文献:
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    CN110686612B|2019-10-31|2020-08-25|大连理工大学|Inclination measuring device and inclination measuring method based on shape sensor|
    法律状态:
    2022-02-15| PC| Change of the owner|Owner name: HOTTINGER BRUEEL & KJAER AUSTRIA GMBH, AT Effective date: 20211222 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50965/2016A|AT519273B1|2016-10-21|2016-10-21|Device for determining physical quantities in structures|ATA50965/2016A| AT519273B1|2016-10-21|2016-10-21|Device for determining physical quantities in structures|
    PCT/EP2017/076760| WO2018073369A1|2016-10-21|2017-10-19|Fiber-optic inclinometer|
    EP17791329.0A| EP3529558A1|2016-10-21|2017-10-19|Fiber-optic inclinometer|
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