EP2106320A2 - Capteur haute fréquence ainsi que machine-outil comprenant un capteur haute fréquence - Google Patents

Capteur haute fréquence ainsi que machine-outil comprenant un capteur haute fréquence

Info

Publication number
EP2106320A2
EP2106320A2 EP07857785A EP07857785A EP2106320A2 EP 2106320 A2 EP2106320 A2 EP 2106320A2 EP 07857785 A EP07857785 A EP 07857785A EP 07857785 A EP07857785 A EP 07857785A EP 2106320 A2 EP2106320 A2 EP 2106320A2
Authority
EP
European Patent Office
Prior art keywords
antenna
frequency sensor
frequency
sensor according
machine tool
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Withdrawn
Application number
EP07857785A
Other languages
German (de)
English (en)
Inventor
Heiko Braun
Michael Mahler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2106320A2 publication Critical patent/EP2106320A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Definitions

  • the present invention is based on a high-frequency sensor, in particular a high-frequency position sensor according to the preamble of claim 1.
  • High-frequency sensors in particular high-frequency sensors for the detection of hidden objects have been known for some time.
  • sensors or antenna elements such sensors are understood to work in a frequency range of much equal to 1 GHz.
  • a radar device with a high-frequency sensor is known, for example, from WO 96/19737. With this radar, objects trapped in a wall or in the ground can be detected with high accuracy. So z. B. in holes in a wall, the objects enclosed therein - z. As steel reinforcements, power lines, water pipes and the like - are safe from destruction, should the craftsman precise information about a place, d. H. the path position on the wall surface and the depth in the wall, of the enclosed object are conveyed.
  • a radar device, as also described in WO 96/19737, usually consists of a "front end" - this is a transmitting and receiving unit - and a display device.
  • the front end disclosed in WO 96/19737 has a shielded space for electrical circuits and two spaces adjoining this space, which are designed as transmitting antenna and receiving antenna.
  • the cavities for the transmitting and receiving antennas are in the form of horns in which radiating elements (eg in the form of wires) are installed.
  • the shielding of the circuit receiving space takes place on the one hand by a mounted on the circuit board for the circuits housing and on the other hand by the Walls of the antenna horns, which are fixed on the opposite side of the circuits of the circuit board.
  • the document WO 96/19737 to be taken execution of the front end of a radar is manufacturing technology relatively expensive because it consists of a variety of items.
  • a device for transmitting and / or receiving radar beams is known in which on one side of a circuit board at least one antenna and on the other side of the circuit board electrical circuits are arranged and means for electromagnetic shielding of the electrical circuits the at least one antenna are present.
  • the antenna-side surface of the printed circuit board of the device of DE 10 104 864 Al is executed in Koplanar- line technology feed network, with which the at least one antenna is contacted, applied, wherein the lying on ground outer conductor of the coplanar line, the antenna-side surface
  • DE 10 204 568 A1 discloses a radar device for detecting objects enclosed in a wall, which device has a transmitting and receiving device.
  • Antenna arrangement consisting of at least one cavity with a radiator element arranged therein and a shielded space for electrical
  • the housing is formed so that it forms both the shielded space for the circuits and the at least one cavity for the at least one antenna radiating element, wherein the circuit board as a shielding partition between the two spaces in the housing is inserted.
  • the invention relates to a high-frequency sensor, in particular a high-frequency sensor for detecting objects hidden in a medium, with at least one antenna for transmitting and / or receiving high-frequency signals, in particular signals in a frequency range from 2 to 8 GHz.
  • the at least one antenna is formed on a LTCC (Low Temperature Cofired Ceramics) ceramic substrate, wherein LTCCs are ceramic multilayer circuits.
  • LTCC Low Temperature Cofired Ceramics
  • UWB ultra-wide band
  • the LTCC substrate the antenna size can be significantly reduced, so that, for example, antenna elements in the frequency range of 2 to 8 GHz with edge lengths less than or equal 1 cm made can be.
  • LTCC components can be built up in layer layers, comparable to multilayer boards, and can also be produced like circuit boards.
  • the LTCC components can also contain integrated passive components, such as resistors, capacitors and coils, this opens up further possibilities for integration and space reduction.
  • the high-frequency components of the transmitting and receiving unit are integrated on or in a semiconductor element (IC) "chip" for short.
  • IC semiconductor element
  • FIG. 1 shows an embodiment of a high-frequency sensor according to the invention with an antenna element on an LTCC substrate in a schematic representation
  • FIG. 2 shows an alternative embodiment of a high-frequency sensor according to the invention with a plurality of antenna elements on a common LTCC substrate in a schematic representation
  • FIG. 3 shows a typical application situation for a machine tool in a schematic representation
  • FIG. 4 shows an alternative application situation for a machine tool in a schematic representation
  • FIG. 5 shows an additional component according to the invention for a machine tool with a corresponding high-frequency sensor according to FIG. 5
  • FIG. 4 in a plan view.
  • FIG. 1 shows a first exemplary embodiment of a high-frequency sensor according to the invention.
  • the high-frequency sensor according to the exemplary embodiment of FIG. 1 comprises inter alia an antenna element 10 which is mounted on an LTCC
  • LTCCs are multilayer ceramic circuits which, in addition to the integration of, for example, one or more antenna elements, also enable the direct integration of further electronic or electrical components of the high-frequency sensor.
  • the working frequency range of the antenna or the antennas is typically between 1 and 8 GHz, preferably between 2 and 4 GHz.
  • the typical length a of an edge of the antenna element 10, which may be formed, for example, as a patch antenna, is in the range of 1 cm and below.
  • Such a high-frequency sensor can be part of a locating device 16, as is indicated symbolically in FIG.
  • a locating device is disclosed, for example, in DE 10 20 5000 A1 and is hereby incorporated in this description, in particular with regard to its structure.
  • FIG. 2 shows an alternative embodiment of a high-frequency sensor according to the invention.
  • a plurality of antenna elements 10, which may correspond to the antenna element of FIG. 1, are formed on a common LTCC substrate 12.
  • the typical extension b of an antenna element is 1 cm or significantly lower.
  • the distance c of the antenna elements 10 to each other is of the order of the size of the antenna elements.
  • antenna groups in locating devices of the type described in DE 10 204 568 A1, for example, makes it possible to dispense with the hitherto necessary travel path of the devices.
  • the combination of classical travel and electronic panning characteristics of the antenna array could improve the visibility of trapped objects, especially in corners.
  • antenna groups there are various approaches. For the sake of simplicity, a linear array as shown in FIG. 2 will be described here. However, the use of an antenna matrix or an antenna star is also possible. Also, a partial occupancy of the matrix, i. an arrangement with different spatial orientation of the individual antennas is possible.
  • the individual antennas are, for example, in a row, as shown in Figure 2, and are also used as individual antennas. Here is then always measured at the place where the respective antenna of the arrangement is located. This corresponds to a device displacement with a fixed measuring distance c according to FIG. 2. Such an application results in a rather coarse grid, which is determined by the antenna distance c.
  • the respective antenna group has always related the same measuring range, for example to the position of the device, for example a locating device, in which a high-frequency sensor is accommodated with a corresponding antenna arrangement.
  • the antennas are varied in their relative phase difference, a change in the measuring range is associated with it. This means that the device must not be moved over the desired measuring range.
  • the measuring device is aligned with an object to be measured, for example a housing wall, and the variable antenna control means that a specific measuring range below the device can now be examined.
  • the device as previously customary and described in DE 10 20 5000 Al - fixed with fixed measuring direction of the antenna array - be moved over, for example, a wall. If the meter comes to a place where it can not be moved on, such as a room corner or the like. Can now be used by changing the antenna control a pivoting characteristic of the antenna array to measure the inaccessible or difficult to reach area.
  • an operating mode is possible in which the locating device is moved over the wall and takes measurements in a relatively coarse spatial grid.
  • the measuring range can be changed by changing the phase angle of the
  • FIG. 2 shows a machine tool 18 in the form of a drilling machine with a corresponding individual antenna element 50 which is mounted on an LTCC substrate
  • the antenna element 48 is arranged.
  • the antenna element is operated by a corresponding control electronics 52.
  • an antenna array according to FIG. 2 or an antenna matrix in the machine 168 may also be used.
  • the electromagnetic high-frequency signal 20, which is radiated by the antenna, can be coupled out, for example, via a so-called polyrod and / or directed via a dielectric lens 22: for decoupling the energy from the antenna 50, which can be designed in particular as a patch antenna, can - depending on the operating frequency of the high-frequency sensor, a dielectric in the form of a plastic part, which is referred to as polyrod, find use.
  • the polyrod is placed over the antenna element.
  • An additional shaping of the directional geometry of the radiator element can be achieved via the housing geometry, or a dielectric lens.
  • a hole is to be drilled in a wall 28 by means of a drill.
  • a pipe 34 for example made of a plastic, which should not be drilled as possible.
  • the plastic tube which is hidden in the wall 28 can be detected and, for example, a corresponding warning signal or the direct display of the hidden object in an output unit 54 of the machine tool 18 are reproduced.
  • the wall front side 30 as well as the wall rear side 36 can be detected via reflections of the high-frequency signal 20, a so-called machine tool can also be used with a machine tool according to the invention
  • the high-frequency sensor can, for example, determine the wall thickness D and turn off the machine 18, if a wall breakthrough is imminent.
  • a wall breakthrough is characterized in that the drilling depth is equal to or greater than the respective wall thickness.
  • the high-frequency sensor is not integrated in the machine tool itself, but in an additional component 60, which in the embodiment of Figures 4 and 5 is a suction device for the Bohrstaub.
  • a suction device for the Bohrstaub.
  • Such a suction device can be placed directly on the wall 28 at the drilling point or be connected to the machine tool 18, as symbolized by the connecting element 62 in FIG.
  • antenna elements 10 are disposed on a common LTCC substrate.
  • each antenna element may be formed on its own on an LTCC substrate.
  • an embodiment with only one antenna element is possible, so that the high-frequency sensor can only decide whether an object is present or not.
  • the antennas 10 of the antenna group can optionally be operated individually or interconnected as an antenna group.
  • the individual antennas can thus be used as a single element depending on the requirement, for example for determining "enclosed object present, yes or no" or by using in an antenna group, for example in a star or cross arrangement also identify the direction of the enclosed objects.
  • the invention is not limited to the embodiments shown in the figures. In particular, the invention is not limited to the type and shape of the machine tool or, the additional component for the machine tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

L'invention concerne un capteur haute fréquence, en particulier un capteur haute fréquence pour la détection d'objets (34) dissimulés dans un milieu, comprenant au moins une antenne (10, 50) pour l'envoi et/ou la réception de signaux haute fréquence (20), en particulier des signaux dans une plage de fréquences de 1 à 8 GHz. On recommande selon la présente invention que la au moins une antenne (10, 50) soit réalisée sur un substrat LTCC (12, 48). L'invention concerne par ailleurs une machine-outil, en particulier un outil électrique (18) prévu pour un entraînement perforant et/ou percutant d'un outil, comprenant au moins un capteur haute fréquence de ce type.
EP07857785A 2006-12-28 2007-12-19 Capteur haute fréquence ainsi que machine-outil comprenant un capteur haute fréquence Withdrawn EP2106320A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610062492 DE102006062492A1 (de) 2006-12-28 2006-12-28 Hochfrequenzsensor sowie Werkzeugmaschine mit einem Hochfrequenzsensor
PCT/EP2007/064162 WO2008080839A2 (fr) 2006-12-28 2007-12-19 Capteur haute fréquence ainsi que machine-outil comprenant un capteur haute fréquence

Publications (1)

Publication Number Publication Date
EP2106320A2 true EP2106320A2 (fr) 2009-10-07

Family

ID=39323715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07857785A Withdrawn EP2106320A2 (fr) 2006-12-28 2007-12-19 Capteur haute fréquence ainsi que machine-outil comprenant un capteur haute fréquence

Country Status (3)

Country Link
EP (1) EP2106320A2 (fr)
DE (1) DE102006062492A1 (fr)
WO (1) WO2008080839A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE102008000198A1 (de) * 2008-01-31 2009-08-06 Robert Bosch Gmbh Gerätesystem
DE102009033236A1 (de) 2009-07-14 2011-01-20 Conductix-Wampfler Ag Vorrichtung zur induktiven Übertragung elektrischer Energie
DE102011088435A1 (de) * 2011-12-13 2013-06-13 Robert Bosch Gmbh Handwerkzeugvorrichtung mit zumindest einer Ortungsantenne
DE102011088438A1 (de) 2011-12-13 2013-06-13 Robert Bosch Gmbh Handwerkzeugvorrichtung
DE102012101008A1 (de) * 2012-02-08 2013-08-08 Röhm Gmbh Leitungserkennung mit einer Bohrvorrichtung
CN112424629B (zh) * 2018-06-26 2024-04-09 苏州宝时得电动工具有限公司 应用雷达的电动设备
DE102019101699A1 (de) * 2019-01-24 2020-07-30 Adolf Würth GmbH & Co. KG Handwerkzeug mit einer Antennenanordnung
CN113567828B (zh) * 2021-06-15 2024-06-21 中国电子科技集团公司第十三研究所 多层低温共烧陶瓷基板的无损失效检测方法

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US6926473B2 (en) * 2000-06-20 2005-08-09 Actuant Corporation Hand drill attachment
DE10204568A1 (de) 2001-02-03 2002-08-29 Bosch Gmbh Robert Radargerät
DE10104864A1 (de) 2001-02-03 2002-08-08 Bosch Gmbh Robert Vorrichtung zum Senden und/oder Empfangen von Radarstrahlen
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DE10205000A1 (de) 2002-02-07 2003-08-28 Bosch Gmbh Robert Ortungsgerät
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DE102004024990A1 (de) * 2004-05-21 2005-12-08 Robert Bosch Gmbh Eindringtiefenbestimmungsvorrichtung
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Also Published As

Publication number Publication date
WO2008080839A3 (fr) 2009-01-22
WO2008080839A2 (fr) 2008-07-10
DE102006062492A1 (de) 2008-07-03

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