DE102013019774A1 - Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds - Google Patents
Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds Download PDFInfo
- Publication number
- DE102013019774A1 DE102013019774A1 DE102013019774.0A DE102013019774A DE102013019774A1 DE 102013019774 A1 DE102013019774 A1 DE 102013019774A1 DE 102013019774 A DE102013019774 A DE 102013019774A DE 102013019774 A1 DE102013019774 A1 DE 102013019774A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- optical arrangement
- optical
- change
- detectors
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 51
- 230000001133 acceleration Effects 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- -1 micro-light guides Substances 0.000 claims 1
- 230000010287 polarization Effects 0.000 claims 1
- 230000003595 spectral effect Effects 0.000 claims 1
- 239000004753 textile Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000005253 cladding Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
-
- 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
- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/28—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
- G01D5/30—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
Abstract
Die Erfindung betrifft eine optische Anordnung zur Erfassung von Positionen, Lageänderungen, Verformungen, Bewegungen, Beschleunigungen und Geschwindigkeiten der optischen Anordnung relativ zu einem beliebigen Bezugspunkt oder einer beliebigen Einrichtung an welcher die optische Anordnung angebracht oder in welcher die optische Anordnung integriert ist. In radialer Richtung sind die als Lichtleiter ausgebildeten Materialien erfindungsgemäß derart formschlüssig angeordnet, dass Licht von einem Material in die jeweils anderen Materialien übertreten kann. Die aus dem Material [1] (Brechzahl n1) gebildeten Lichtleiter (mindestens 4 identischen Lichtleitern) sind in radialer Richtung von den Materialien [2] (Brechzahl n2) und [3] (Brechzahl n3) jeweils teilweise umschlossen. Erfindungsgemäß wird moduliertes oder unmoduliertes, polarisiertes oder unpolarisiertes Licht einer oder mehrerer Wellenlängen (UV, VIS, IR) an einem Ende in eine oder mehrere axiale Lichtleiterstrukturen eingekoppelt [4]. Der Nachweis des Messlichtes erfolgt über entsprechende Detektoren in der optischen Anordnung [5]. Bei Veränderungen der optischen Anordnung, z. B. durch Beschleunigung, Biegung, Stauchung, Druck oder Lageänderung wird Licht von einer lichtleitenden Struktur in eine andere lichtleitende Struktur übergekoppelt. Die dabei auftretenden Änderung der Lichtintensität in einem oder mehreren lichtleitenden Strukturen ermöglicht die Analyse der jeweiligen mechanischen Veränderung und damit die Bestimmung der Messgröße, z. B. der Lageänderung, der Beschleunigung, des Druckes oder der Biegung.The invention relates to an optical arrangement for detecting positions, position changes, deformations, movements, accelerations and speeds of the optical arrangement relative to any reference point or any device to which the optical arrangement is mounted or in which the optical arrangement is integrated. In the radial direction, the materials embodied as light guides are arranged according to the invention in such a form-fitting manner that light can pass from one material to the other in each case. The light guides formed from the material [1] (refractive index n1) (at least 4 identical light guides) are each partially enclosed in the radial direction by the materials [2] (refractive index n2) and [3] (refractive index n3). According to the invention, modulated or unmodulated, polarized or unpolarized light of one or more wavelengths (UV, VIS, IR) is coupled in at one end into one or more axial optical waveguide structures [4]. The detection of the measuring light takes place via corresponding detectors in the optical arrangement [5]. For changes in the optical arrangement, for. B. by acceleration, bending, compression, pressure or change in position, light is coupled from one photoconductive structure into another light-conducting structure. The occurring change in the light intensity in one or more light-conducting structures allows the analysis of the respective mechanical change and thus the determination of the measured variable, for. As the change in position, acceleration, pressure or bending.
Description
Technisches GebietTechnical area
Die Erfindung betrifft eine optische Anordnung zur Erfassung von Positionen, Lageänderungen, Verformungen, Bewegungen, Beschleunigungen und Geschwindigkeiten der optischen Anordnung relativ zu einem beliebigen Bezugspunkt oder einer beliebigen Einrichtung an welcher die optische Anordnung angebracht oder in welcher die optische Anordnung integriert ist.The invention relates to an optical arrangement for detecting positions, position changes, deformations, movements, accelerations and speeds of the optical arrangement relative to any reference point or any device to which the optical arrangement is mounted or in which the optical arrangement is integrated.
Stand der TechnikState of the art
Faseroptische Lage- bzw. Verformungssensoren sind aus dem Stand der Technik bekannt. So beschreibt zum Beispiel
Eine ortsaufgelöste Methode zur Bestimmung der Form- und Lageänderung mittels optischer Sensoren, welche zum Beispiel die lokale Dehnung einer optischen Faser und die Position der Dehnung über die Auswertung der in der Faser rückgestreuten optischen Strahlung und deren Größe im Vergleich zur eingestrahlten Strahlung ermittelt. Ein Beispiel hierfür ist die Auswertung der rückgestreuten Rayleigh Strahlung in einer oder mehrerer Fasern wie in
Außerdem sind faseroptische Verformungssensoren bekannt, die auf Basis der Auskopplung von Licht an die Umgebung die Verformung der optischen Faser bestimmen. Hierbei werden lokale Strukturierungen eingebracht (
Aufgabenstellungtask
Es besteht die Aufgabe Positionen, Lageänderungen, Verformungen, Bewegungen, Beschleunigungen und Geschwindigkeiten mittels einer optischen Anordnung relativ zu einem beliebigen Bezugspunkt oder von einer beliebigen Einrichtung an welcher die optische Anordnung angebracht oder in welcher die optische Anordnung integriert ist, zu erfassen. Die optische Anordnung sollte Veränderungen in der Lage der eines Bauteils, bzw. der optischen Anordnung selbst, welche zum Beispiel durch die Verformung der Faser hervorgerufen wird, anhand mehrerer aufgenommener optische Kennwerte, wie zum Beispiel Dämpfung/Verlust optischer Strahlung über den Verlauf der optischen Anordnung zu erfassen. Infolge dessen sollen die Werte der entsprechenden Raumkoordinaten aus den erfassten optischen Werten errechnet werden. Außerdem sollen die Beschleunigung und Geschwindigkeit der Lageänderung über den zeitlichen Verlauf der Lageänderung errechnet werden.The object is to detect positions, changes in position, deformations, movements, accelerations and velocities by means of an optical arrangement relative to any reference point or of any device to which the optical arrangement is attached or in which the optical arrangement is integrated. The optical arrangement should detect changes in the position of a component, or the optical arrangement itself, which is caused, for example, by the deformation of the fiber, based on a plurality of recorded optical characteristics, such as attenuation / loss of optical radiation over the course of the optical arrangement capture. As a result, the values of the corresponding spatial coordinates are to be calculated from the recorded optical values. In addition, the acceleration and speed of the change in position over the time course of the change in position are to be calculated.
Offenbarung der ErfindungDisclosure of the invention
Erfindungsgemäß wird diese Aufgabe mit einer optischen Anordnung gelöst, welche aus mindestens drei unterschiedlichen lichtleitenden Materialien mit jeweils unterschiedlichem Brechungsindex besteht.According to the invention, this object is achieved with an optical arrangement which consists of at least three different light-conducting materials, each with a different refractive index.
Die lichtleitenden Materialien mit jeweils unterschiedlichem Brechungsindex sind als definiert zueinander positionierte Lichtleiter in axialer Richtung ausgebildet (siehe Ausführungsbeispiel 1).The light-conducting materials, each having a different refractive index, are designed as light guides positioned in a defined manner relative to one another in the axial direction (see exemplary embodiment 1).
In radialer Richtung sind die als Lichtleiter ausgebildeten Materialien erfindungsgemäß derart formschlüssig angeordnet, dass Licht von einem Material in die jeweils anderen Materialien übertreten kann. Die aus dem Material 1 (Brechzahl n1) gebildeten Lichtleiter (mindestens vier identische Lichtleitern) sind in radialer Richtung von den Materialien 2 (Brechzahl n2) und 3 (Brechzahl n3) jeweils teilweise umschlossen.In the radial direction, the materials embodied as light guides are arranged according to the invention in such a form-fitting manner that light can pass from one material to the other in each case. The light guides formed from the material 1 (refractive index n 1 ) (at least four identical light guides) are each partially enclosed in the radial direction by the materials 2 (refractive index n 2 ) and 3 (refractive index n 3 ).
Erfindungsgemäß wird moduliertes oder unmoduliertes, polarisiertes oder unpolarisiertes Licht einer oder mehrerer Wellenlängen (UV, VIS, IR) an einem Ende in eine oder mehrere axiale Lichtleiterstrukturen eingekoppelt. Der Nachweis des Messlichtes erfolgt über entsprechende Detektoren in der optischen Anordnungsstruktur. Erfindungsgemäß sind über den axialen Verlauf der Anordnung mehrere optische Detektoren verteilt. Dies kann z. B. am jeweils anderen Ende der lichtleitenden Strukturen erfolgen (siehe Ausführungsbeispiel 1) oder auch gleichmäßig verteilt entlang des axialen Verlaufes realisiert werden (siehe Ausführungsbeispiel 2).According to the invention, modulated or unmodulated, polarized or unpolarized light of one or more wavelengths (UV, VIS, IR) is coupled in at one end into one or more axial optical waveguide structures. The detection of the measurement light takes place via corresponding detectors in the optical arrangement structure. According to the invention over the axial course of the arrangement more distributed optical detectors. This can be z. B. at the other end of the light-conducting structures (see Embodiment 1) or evenly distributed along the axial course can be realized (see Embodiment 2).
Bei Veränderungen der optische Anordnung, z. B. durch Beschleunigung, Biegung, Stauchung, Druck oder Lageänderung wird Licht von einer lichtleitenden Struktur in eine andere lichtleitende Struktur übergekoppelt. Die dabei auftretenden Änderung der Lichtintensität in einem oder mehreren lichtleitenden Strukturen ermöglicht die Analyse der jeweiligen mechanischen Veränderung der optischen Anordnungsstruktur und damit die Bestimmung der Messgröße, z. B. der Lageänderung, der Beschleunigung, des Druckes oder der Biegung.For changes in the optical arrangement, eg. B. by acceleration, bending, compression, pressure or change in position, light is coupled from one photoconductive structure into another light-conducting structure. The occurring change in the light intensity in one or more light-conducting structures allows the analysis of the respective mechanical change of the optical arrangement structure and thus the determination of the measured variable, for. As the change in position, acceleration, pressure or bending.
Die Detektion des Intensitätssignals an der, der Lichtquelle abgewandten Seite der lichtleitenden Strukturen basiert zum Einen auf der Dämpfung des in den lichtleitenden Strukturen geführten Lichtes und zum Anderen im Übersprechen des Lichtes von einer lichtleitenden Struktur zur anderen lichtleitenden Struktur.The detection of the intensity signal at the side of the light-conducting structures facing away from the light source is based on the attenuation of the light guided in the light-conducting structures and on the crosstalk of the light from one light-conducting structure to the other light-conducting structure.
Durch die symmetrische Anordnung der lichtleitenden Strukturen (siehe Ausführungsbeispiel 1) ist eine vorzeichen- und richtungsabhängige Erfassung der mechanischen Messgrößen möglich.Due to the symmetrical arrangement of the light-conducting structures (see Example 1), a sign-dependent and direction-dependent detection of the mechanical measured variables is possible.
Ausführungsbeispieleembodiments
Die Erfindung kann in zwei bevorzugten Varianten realisiert werden. Ausführungsbeispiel 1 (siehe
Die
Die
Alternativ zur Ausführung als lokalisierbarer Fasermantel [
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 6256090 [0002] US 6256090 [0002]
- US 7781724 [0002] US 7781724 [0002]
- US 7772541 [0003] US 7772541 [0003]
- DE 102006029020 B3 [0004] DE 102006029020 B3 [0004]
- US 5321257 [0004] US 5321257 [0004]
- EP 0649007 A1 [0004] EP 0649007 A1 [0004]
- WO 01994029671 A1 [0004] WO 01994029671 A1 [0004]
- WO 00/68645 [0004] WO 00/68645 [0004]
- DE 10026330 A1 [0004] DE 10026330 A1 [0004]
- EP 0210372 A2 [0004] EP 0210372 A2 [0004]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013019774.0A DE102013019774B4 (en) | 2013-11-23 | 2013-11-23 | Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013019774.0A DE102013019774B4 (en) | 2013-11-23 | 2013-11-23 | Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102013019774A1 true DE102013019774A1 (en) | 2015-05-28 |
DE102013019774B4 DE102013019774B4 (en) | 2019-05-09 |
Family
ID=53045173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102013019774.0A Expired - Fee Related DE102013019774B4 (en) | 2013-11-23 | 2013-11-23 | Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102013019774B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111397534A (en) * | 2020-04-16 | 2020-07-10 | 杭州酬催科技有限公司 | Steel plate bending degree detection device based on light refraction principle |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4295738A (en) * | 1979-08-30 | 1981-10-20 | United Technologies Corporation | Fiber optic strain sensor |
US4298794A (en) * | 1979-08-30 | 1981-11-03 | United Technologies Corporation | Fiber optic hot spot detector |
EP0210372A2 (en) | 1985-05-31 | 1987-02-04 | Sumitomo Electric Industries Limited | Optical deformation sensor |
US5321257A (en) | 1991-07-31 | 1994-06-14 | Danisch Lee A | Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide |
WO1994029671A1 (en) * | 1993-06-10 | 1994-12-22 | Danisch Lee A | Fiber optic bending and positioning sensor |
EP0649007A1 (en) | 1993-10-14 | 1995-04-19 | Telefonaktiebolaget Lm Ericsson | Optical fiber for sensors and method for preparation of an optical fiber |
WO2000068645A1 (en) | 1999-05-11 | 2000-11-16 | Danisch Lee A | Fiber optic curvature sensor |
WO2001000099A1 (en) | 1999-06-25 | 2001-01-04 | Oratec Interventions, Inc. | Electrode for electrosurgical ablation of tissue |
US6256090B1 (en) | 1997-07-31 | 2001-07-03 | University Of Maryland | Method and apparatus for determining the shape of a flexible body |
DE10026330A1 (en) | 2000-05-26 | 2001-11-29 | Bosch Gmbh Robert | Deformation sensor |
US20030209655A1 (en) * | 2002-05-08 | 2003-11-13 | Anbo Wang | Optical fiber sensors based on pressure-induced temporal periodic variations in refractive index |
US6888623B2 (en) * | 2003-02-26 | 2005-05-03 | Dynamic Technology, Inc. | Fiber optic sensor for precision 3-D position measurement |
DE102006029020B3 (en) | 2006-06-14 | 2007-07-19 | Siemens Ag | Optical sensor fiber for motor vehicle, has bend sensitive zone that is formed by untreated fiber section that extends itself between surface treated fiber sections, where fiber is multimode fiber, and sections lie outside of zone |
US7772541B2 (en) | 2004-07-16 | 2010-08-10 | Luna Innnovations Incorporated | Fiber optic position and/or shape sensing based on rayleigh scatter |
US7781724B2 (en) | 2004-07-16 | 2010-08-24 | Luna Innovations Incorporated | Fiber optic position and shape sensing device and method relating thereto |
WO2011071750A1 (en) * | 2009-12-02 | 2011-06-16 | Ofs Fitel Llc. A Delaware Limited Liability Company | Techniques for manipulating crosstalk in multicore fibers |
-
2013
- 2013-11-23 DE DE102013019774.0A patent/DE102013019774B4/en not_active Expired - Fee Related
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4295738A (en) * | 1979-08-30 | 1981-10-20 | United Technologies Corporation | Fiber optic strain sensor |
US4298794A (en) * | 1979-08-30 | 1981-11-03 | United Technologies Corporation | Fiber optic hot spot detector |
EP0210372A2 (en) | 1985-05-31 | 1987-02-04 | Sumitomo Electric Industries Limited | Optical deformation sensor |
US5321257A (en) | 1991-07-31 | 1994-06-14 | Danisch Lee A | Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide |
WO1994029671A1 (en) * | 1993-06-10 | 1994-12-22 | Danisch Lee A | Fiber optic bending and positioning sensor |
EP0649007A1 (en) | 1993-10-14 | 1995-04-19 | Telefonaktiebolaget Lm Ericsson | Optical fiber for sensors and method for preparation of an optical fiber |
US6256090B1 (en) | 1997-07-31 | 2001-07-03 | University Of Maryland | Method and apparatus for determining the shape of a flexible body |
WO2000068645A1 (en) | 1999-05-11 | 2000-11-16 | Danisch Lee A | Fiber optic curvature sensor |
WO2001000099A1 (en) | 1999-06-25 | 2001-01-04 | Oratec Interventions, Inc. | Electrode for electrosurgical ablation of tissue |
DE10026330A1 (en) | 2000-05-26 | 2001-11-29 | Bosch Gmbh Robert | Deformation sensor |
US20030209655A1 (en) * | 2002-05-08 | 2003-11-13 | Anbo Wang | Optical fiber sensors based on pressure-induced temporal periodic variations in refractive index |
US6888623B2 (en) * | 2003-02-26 | 2005-05-03 | Dynamic Technology, Inc. | Fiber optic sensor for precision 3-D position measurement |
US7772541B2 (en) | 2004-07-16 | 2010-08-10 | Luna Innnovations Incorporated | Fiber optic position and/or shape sensing based on rayleigh scatter |
US7781724B2 (en) | 2004-07-16 | 2010-08-24 | Luna Innovations Incorporated | Fiber optic position and shape sensing device and method relating thereto |
DE102006029020B3 (en) | 2006-06-14 | 2007-07-19 | Siemens Ag | Optical sensor fiber for motor vehicle, has bend sensitive zone that is formed by untreated fiber section that extends itself between surface treated fiber sections, where fiber is multimode fiber, and sections lie outside of zone |
WO2011071750A1 (en) * | 2009-12-02 | 2011-06-16 | Ofs Fitel Llc. A Delaware Limited Liability Company | Techniques for manipulating crosstalk in multicore fibers |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111397534A (en) * | 2020-04-16 | 2020-07-10 | 杭州酬催科技有限公司 | Steel plate bending degree detection device based on light refraction principle |
CN111397534B (en) * | 2020-04-16 | 2021-09-14 | 杭州酬催科技有限公司 | Steel plate bending degree detection device based on light refraction principle |
Also Published As
Publication number | Publication date |
---|---|
DE102013019774B4 (en) | 2019-05-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102006041865A1 (en) | Optical device for monitoring a rotatable shaft with directional axis | |
DE102009009272A1 (en) | Quality inspection for rotor blades of a wind energy plant | |
DE10360389A1 (en) | Deflection sensor | |
DE102013019774B4 (en) | Optical arrangement for determining changes in position, positions, deformation, movements, accelerations and speeds | |
DE102010013897A1 (en) | Optical measuring device and optical fiber | |
WO2005068985A2 (en) | Method and device for the optical monitoring of a running fiber strand | |
WO2020064084A1 (en) | Fiber-optic sensor, data glove and method for detecting curvature | |
EP3006919A1 (en) | Method for spatially resolved measurement of molecule concentrations and/or temperature by means of optical fibres | |
DE102017217939B4 (en) | Method and arrangement for determining an optical variable on a sensor cover; Motor vehicle | |
EP2619550A1 (en) | Sensor for monitoring a medium | |
DE102015209957A1 (en) | yarn monitoring device | |
DE102004005801A1 (en) | Sensor device for determining the tire inflation pressure in a motor vehicle | |
EP1478915B1 (en) | Hardness testing device comprising a transparent Vickers diamond which is illuminated by means of light guides | |
DE102010041141A1 (en) | Sensor for monitoring medium in optical path between electromagnetic radiation source e.g. luminescent diode and charge coupled device (CCD) sensor, detects spectrum change by alteration of mediums arranged in optical path | |
EP2619551A1 (en) | Sensor for monitoring a medium | |
DE19753059C2 (en) | Device for measuring the size of an angle between two legs | |
DE102010029818B4 (en) | position sensor | |
DE10115826C2 (en) | Method for measuring the position or the shape of an object or an object contour in a monitoring area with an optoelectronic measuring device, and optoelectronic measuring device | |
DE102018122510A1 (en) | Optical sensor | |
DE19956557A1 (en) | Measuring method for optically determining the position of a movement member and sensor for carrying out the method | |
DE10101747A1 (en) | Yarn monitor has measurement arms projecting from a housing with a wheel which is rotated by the moving yarn to measure yarn tension and other parameters such as speed and yarn length | |
DE102004037883B3 (en) | Optical fiber sensor for measuring phase distribution in a multi-phase system comprises light guiding elements arranged on a support along the axis of the support | |
WO2021047779A1 (en) | Method and device for determining the shape of an optical waveguide, and device for producing training data for a neural network | |
EP2872792B1 (en) | Wear travel sensor for a brake lining of a friction brake, and method for determining wear travel | |
DE3216754A1 (en) | Sensor for illuminating a measuring surface and for detecting radiation reflected from said measuring surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R012 | Request for examination validly filed | ||
R163 | Identified publications notified | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |