WO2023156273A1 - Procédé de fabrication de système de détection de vibrations, produit de programme d'ordinateur et système de fabrication - Google Patents

Procédé de fabrication de système de détection de vibrations, produit de programme d'ordinateur et système de fabrication Download PDF

Info

Publication number
WO2023156273A1
WO2023156273A1 PCT/EP2023/053107 EP2023053107W WO2023156273A1 WO 2023156273 A1 WO2023156273 A1 WO 2023156273A1 EP 2023053107 W EP2023053107 W EP 2023053107W WO 2023156273 A1 WO2023156273 A1 WO 2023156273A1
Authority
WO
WIPO (PCT)
Prior art keywords
area
acceleration sensor
adjustable
amplitude value
vibration
Prior art date
Application number
PCT/EP2023/053107
Other languages
German (de)
English (en)
Inventor
Wolfgang Ens
Tim Scherer
Stefan Von Dosky
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2023156273A1 publication Critical patent/WO2023156273A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Definitions

  • the invention relates to a method for producing a vibration detection system and a computer program product set up for this purpose.
  • the invention also relates to a system that is designed to carry out the method.
  • a plurality of photoplethysmographic signals are aggregated and a noise signal is received. Based on this, movement artifacts are recognized.
  • Document US Pat. No. 6,628,898 B2 discloses an optical device that has a sensor that is designed to detect a vibration of the optical device.
  • the optical device also has a smear or streak correction that can be controlled based on signals from the sensor.
  • the optical device is provided with a control unit which is designed to recognize whether a user is using a viewfinder or a display in a given operating situation.
  • Vibration detection systems are used to detect and diagnose an operating state of devices, particularly in an industrial application area.
  • the quality of a vibration measurement carried out with it depends, among other things, on the positioning of the associated sensors on the device to be monitored.
  • Increasing demands are being placed on devices in industrial applications in terms of reliability, which in turn requires vibration measurement systems with increased measurement accuracy.
  • vibration sensing systems that are quick and easy to set up, while providing reliable performance provide increased measurement accuracy.
  • increased demands are placed on cost efficiency.
  • the object of the invention is to provide a possibility that offers an improvement in at least one of the aspects presented.
  • the task is solved by a method according to the invention for producing a vibration detection system.
  • the vibration detection system includes at least one acceleration sensor, which is designed to detect an existing vibration at its installation site.
  • an oscillating area is formed on the device, for example on one of its surfaces, in which area the acceleration sensor is to be arranged.
  • the method comprises a first step in which the device for which the vibration detection system is to be produced is provided in an active operating state.
  • the active operating state includes that the device, for example a mechanical application such as a drive, a pump or a transmission, is set up and functional and is operated in the intended manner.
  • the active operating state there is a vibration in the device, which can be detected by the vibration detection device to be produced.
  • the oscillating area of the device is at least partially optically recorded. This is done using an adjustable detection device.
  • the oscillating area optically recorded by the adjustable detection device determines the area in which a mounting location for the acceleration sensor is to be determined.
  • the method also includes a second step in which a smeared image area is detected based on the optical detection in the first step. Due to a vibration present in the active operating state, there is an increased speed in the oscillating area. This results in smearing or blurring in the image captured by the adjustable capture device. to streak formation. Consequently, the oscillating range is in the corresponding Image area shown with reduced sharpness.
  • the smeared image area can be recognized using suitable algorithms that are used, for example, in photography technology. Alternatively or additionally, a change in intensity in the corresponding image area can be determined in the second step in the oscillating area. For this purpose, several images can be compared, which are captured at different points in time.
  • the vibrating area is deflected at least in places by the vibration. If the incidence of light remains the same at the corresponding point, there is a variable reflection and thus a variable intensity at the corresponding position.
  • a suitably designed algorithm can also be used for this purpose, for example from photography technology.
  • an amplitude value is determined in the second step.
  • the amplitude value is a measure of the degree of smearing in the corresponding image area or for a change in intensity.
  • the amplitude value corresponds to an oscillation amplitude caused at the corresponding position as a result of the vibration in the active operating state.
  • the method according to the invention also includes a third step, in which a mounting area for the acceleration sensor is identified in the oscillating area of the device. This is done at least based on the amplitude value that is determined in the second step. The higher the amplitude value, the higher the measurement accuracy that can be achieved when the acceleration sensor is installed in the corresponding position.
  • the mounting area can include a plurality of positions at which there is an amplitude value at which the acceleration sensor can be mounted in an advantageous manner, ie a desired measuring accuracy can be achieved.
  • the assembly area can be designed to be continuous or can comprise a plurality of separate areas.
  • the method according to the invention also includes a fourth step, in which the assembly requirements determined in the third step is spent richly.
  • the assembly area can be output to a user or to an engineering system that is designed, for example, to control a robot that is suitable for attaching the acceleration sensor.
  • the accelerometer is attached to the fixture in the designated mounting area.
  • the acceleration sensor can be attached to the device so that it can be detached in a non-destructive manner or can only be detached in a destructive manner.
  • assembly areas that offer increased measuring accuracy for the acceleration sensor to be assembled can be identified quickly and reliably automatically.
  • the detection of a smeared image area or a determination of an intensity change is possible, for example, using available algorithms from photography technology.
  • devices with low vibrations can also be equipped with acceleration sensors that deliver sufficiently accurate measured values that allow a reliable status diagnosis.
  • the amplitude value represents a meaningful measure of the suitability of a position for mounting an acceleration sensor.
  • the method according to the invention makes it possible, by advantageous positioning of the acceleration sensor, to also carry out vibration analyzes on devices for which suitable assembly areas have hitherto been known or can at most be determined with increased effort.
  • the method according to the invention also makes it possible to use acceleration sensors with reduced measurement resolution, which simplifies the vibration detection system to be produced and makes it more cost-effective. Overall, the technical potential of acceleration sensors, and thus of vibration detection systems, is more fully exploited by the method according to the invention.
  • the assembly area is identified in the third step if the at least one amplitude value exceeds an adjustable threshold value.
  • the threshold value can be set, for example, by the user or by an algorithm.
  • the threshold value can be in the form of an absolute value or a relative value.
  • an assembly area can be identified in which there is a local maximum of the amplitude value, which in turn makes it possible to identify a particularly suitable assembly area.
  • this allows the method to be adapted to devices in which only small amplitude values are present.
  • the threshold value can be configured as a function of device information about the acceleration sensor to be installed.
  • a section of the oscillating area can be recognized as a mounting area that satisfies the requirements of the acceleration sensor.
  • the claimed method can thus be easily adapted to the circumstances of the device and/or the sensor.
  • the claimed method is consequently adaptable to a wide range of uses.
  • the amplitude value can be recognized in the third step based on the strength of a smearing in the smeared area.
  • the stronger the smearing the higher the local speed of an oscillation in the oscillating area. Accordingly, a so-called antinode is to be expected in the area of the strongest smearing, where the correspondingly highest amplitude is also to be expected.
  • the higher the amplitude the higher the correspondingly determined amplitude value.
  • the degree of smearing can be determined reliably and precisely using available algorithms from photographic technology.
  • the claimed method is therefore also based on a fact that is always physically present and can be measured with sufficient precision. Consequently, the claimed method is robust against interference.
  • further developments in the detection of smearing for example from photography technology or Image processing technology, easily implemented in a simple manner in the claimed method.
  • the claimed method can thus also be adapted to future applications with minimal vibrations.
  • the assembly area identified in the third step of the claimed method can be an area with the maximum amplitude value on at least one surface of the device.
  • the surface of the device can be, for example, a wall of a housing of the device, which vibrates like a membrane in the active operating state.
  • the assembly area can be the position with the maximum amplitude value and a tolerance area formed around it.
  • the tolerance range can, for example, be in the form of a radius around the position with the maximum amplitude value.
  • the radius can be formed as a function of the maximum amplitude value and at least one amplitude value of a further position in the oscillating area.
  • the radius of the tolerance range can be adjusted in such a way that sufficient measuring accuracy can still be achieved when the acceleration sensor is installed in the tolerance range.
  • the assembly area can be output in the fourth step by means of an image, a video recording and/or an augmented reality representation of the device.
  • the assembly area can be displayed as a static or dynamic graphic representation in an engineering system or a display unit coupled to the evaluation unit. Based on this, a dimension can be determined in a simple manner, which allows precise assembly of the acceleration sensor. Analogously, the position of the assembly area can also be shown in a video recording with a graphic representation. puts his .
  • an augmented reality display allows the determined assembly area to be shown to the user, for example in so-called AR glasses. The user is thus guided precisely to the assembly area by the augmented reality display, where he can assemble the acceleration sensor himself. This avoids errors by the user when installing the acceleration sensor.
  • the adjustable receiving device with which the oscillating area is at least partially detected optically, can be designed to receive and process visible light, laser radiation or radar radiation. Sufficiently precise receiving devices are available for such wavelengths, with which an intensity change in an image area or a smeared image area can be identified.
  • the claimed method can thus be adapted to a large number of possible applications.
  • the adjustable receiving device can be designed to capture a two-dimensional or three-dimensional image area.
  • the amplitude value can also be determined from a two-dimensional image area, for example by means of structure recognition and information about the oscillating area, for example its shape.
  • a three-dimensional image area can be captured, for example, by means of a stereo camera system.
  • Such a three-dimensional detection offers increased accuracy in determining the amplitude value for a position on a surface of the device.
  • an overview of a distribution of amplitude values in the oscillating area can be determined by capturing a three-dimensional image area. In this way, particularly advantageous mounting areas for the acceleration sensor can be quickly identified.
  • an edge detection can be carried out in the second step.
  • An edge of a surface on the device for example on a housing, is easily and reliably recognizable due to a sharp linear contrast. Edges often represent areas of surfaces on devices where at most minimal amplitude values occur. In particular, vibrating areas can typically be bounded by edges.
  • a reference can be generated automatically, on the basis of which the at least one amplitude value can be precisely acquired. As a result, the claimed method can be further automated and is not susceptible to inaccurate information provided by the user.
  • the exposure duration of the adjustable detection device can be adjustable.
  • the longer the exposure time the larger the smeared image areas.
  • the lower the amplitude values in the oscillating area the longer the exposure time can be set in order to make smeared image areas recognizable.
  • the shorter the exposure time the smaller the smeared image area. This makes it possible, for example, to sharply resolve strongly oscillating areas, i.e. with increased amplitude values. Accordingly, only areas with maximum amplitude values can still be recognized as smeared image areas.
  • the exposure time can be varied, in particular during the first and/or second step, in order to determine the position of an area with a maximum amplitude value.
  • a sharp/unsharp front and its direction of movement can be recognized in several passes.
  • a peripheral sharp-blurred front can be determined in several passes and a center can be determined on an unsharp side, ie a smeared image area, in the area of which the maximum amplitude value is to be expected. Accordingly, an area with a maximum amplitude value can be expected after a reduced number of passes. can be determined with technical support.
  • the exposure time can, for example, be incrementally reduced from run to run, or parameter-controlled.
  • a corresponding parameter can be, for example, a progression speed of a sharp-blurred front.
  • the assembly area can be recognized in the third step on the basis of a photoplethysmographic evaluation.
  • photoplethysmographic evaluations are also suitable for identifying vibrations with a reduced amplitude and reduced frequency.
  • photoplethysmographic evaluations are implemented, for example, in so-called pulse oximeters.
  • the invention is based, among other things, on the surprising finding that vibrations on surfaces of devices, ie vibrating areas, can be detected by means of such evaluations. In particular, this allows periodic intensity changes of image areas to be recognized. Accordingly, the claimed method can be carried out by means of a photoplethysmographic evaluation with reduced computing effort on relatively simple hardware.
  • the underlying task is also solved by a computer program product according to the invention.
  • the computer program product is used to produce a vibration detection system and is designed to receive and process image data from an adjustable detection device. Furthermore, the computer program product is suitable for being executed in an evaluation unit of a system for producing the vibration detection system.
  • the computer program product can be designed as software or hard-wired, for example as a chip, integrated circuit or FPGA, or as a combination thereof.
  • the computer program product can be designed monolithically, ie it can be executed on a single hardware platform and combine all functionalities.
  • the computer program product can be of modular design be and include a plurality of sub-programs that are communicatively connected to each other and provide the functionalities of the computer program product in interaction.
  • the computer program product is designed to carry out at least one method according to the outlined embodiments.
  • the computer program product can also be designed to transmit a determined assembly area to a display unit, so that the determined assembly area is displayed on the display unit.
  • the computer program product can be designed to control a robot in order to fasten the acceleration sensor in the determined assembly area.
  • the computer program product can be designed to implement at least the second and third step of the method.
  • the computer program product according to the invention is suitable for quickly implementing the claimed method and adapting it in a simple manner to the requirements of the respective application.
  • the task described at the outset is likewise achieved by a system according to the invention for producing a vibration detection system.
  • the system according to the invention comprises an adjustable detection device that is suitable for optically detecting an oscillating area of a device, in particular on a surface of the device.
  • the area to be detected on the device includes a mounting area in which an acceleration sensor is to be attached.
  • the system includes an evaluation unit that can be coupled to the adjustable detection device.
  • the system also has a display unit which is designed to output, ie to display, the determined installation area for the acceleration sensor.
  • the evaluation unit is designed according to one of the embodiments described above.
  • the system according to the invention makes it possible to advantageously position the acceleration sensor and thus further exploit its technical potential.
  • the invention is explained in more detail below using an embodiment in figures.
  • the figures are to be read as complementing one another to the extent that the same reference symbols have the same technical meaning in different figures.
  • the features of the embodiment can be combined with the features outlined above. They show in detail:
  • FIG. 1 shows an embodiment of the claimed method in a first stage in an oblique view
  • FIG. 4 shows the embodiment of the claimed method in a third stage in an oblique view.
  • FIG. 1 An embodiment of the claimed method 100 is shown in FIG. 1 in an oblique view in a first stage.
  • the method 100 serves, among other things, to mount an acceleration sensor 10 on the surface 22, in particular in a vibrating area 24, in a position at which a precise measurement is easily possible.
  • the acceleration sensor 10 to be mounted can be coupled to a monitoring device 50 via a communicative data link 52 .
  • the method 100 is based on the fact that a device 20 is provided which is of essentially cuboid design and is delimited by a plurality of surfaces 22 . When the device 20 is in an active operating state, it is subjected to vibrational stress. At least one of the surfaces 22 has a vibrating region 24 spaced from edges 23 of the respective surface 22 .
  • the vibrating surface 24 is an area of the surface 22 in which a vibration 15 can be detected.
  • the vibration 15 is locally different in the oscillating area 24 , which is symbolized by different double arrows in FIG. 1 .
  • the device 20 is provided in an active operating state, in which the oscillating Area 24 Vibration 15 is present.
  • an optical detection 35 of at least one section 26 of the oscillating region 24 takes place.
  • the optical detection 35 takes place by means of an adjustable detection device 30 which is designed as a camera 32 . Accordingly, image data 31 are generated from the detected area 26 of the oscillating area 24 , which are present in the adjustable detection device 30 and are to be evaluated in the further method 100 .
  • a second stage of the claimed method 100 is shown in FIG. 2 in an oblique view.
  • the second stage follows the first stage shown in FIG.
  • the image data 31 which are generated by the optical detection 35 of the oscillating area 24 , are transmitted to an evaluation unit 40 via a communicative data link 39 .
  • a computer program product 60 is executably stored on the evaluation unit 40 and is designed to evaluate the image data 31 in a second step 120 .
  • a smeared image area 36 is recognized based on the image data 31 , which area can be resolved locally in the oscillating area 24 .
  • the size of the smeared image area 36 can be adjusted by setting an exposure duration of the adjustable detection device 30 .
  • a smeared image area 36 can be automatically identified in the image data 31 by the computer program product 60 .
  • the computer program product 60 can use an algorithm, in particular from photography technology or image processing technology.
  • the detection of the smeared image area 36 can include varying the exposure duration of the adjustable detection device 31 so that, for example, a center of the smeared
  • Image area 36 is detected.
  • the second step 120 includes detecting changes in intensity 38 .
  • the changes in intensity 38 are essentially ring-shaped in FIG.
  • the changes in intensity 38 can be in the form of changes in brightness which result from the vibration 15 present in the detected area 26 .
  • the second stage of the claimed method 100 is shown in a sectional view in FIG.
  • the section shown in FIG. 3 runs essentially through the detected area 26 of the oscillating area 24 of the surface 22 on which the acceleration sensor 10 is to be mounted.
  • at least one amplitude value 17 of the amplitude 16 of the existing vibration 15 is recorded in the recorded area 26 , ie in the oscillating area 24 .
  • the amplitude value 17 here represents an instantaneous value for the amplitude 16 at an adjustable position 37 .
  • the amplitude value 17 can be determined using an evaluation of image data 31 of the blurred image area 36 . Alternatively or additionally, the amplitude value 17 can be determined on the basis of the intensity change 38 correspondingly present.
  • the change in intensity 38 is caused by the fact that the surface 22 is curved by the vibration 15 .
  • the surface 22 ie the oscillating area 24 , is locally inclined at a position relative to a resting position 11 by a curvature angle 19 .
  • a surface normal 25 is also locally inclined, on the basis of which a reflection direction results for an incident light beam 21 .
  • a variable intensity value 18 is produced at the corresponding position.
  • the detection of the intensity changes 38 is also based on algorithms from photography technology or Image processing can be performed by evaluating the image data 31 captured in the second step 120 .
  • At least one adjustable position 37 in the oscillating area 24 is on Amplitude value 17 can be determined, which is comparable to an adjustable threshold value 33 in a third step 130 . If an amplitude value 17 of a position exceeds the adjustable threshold value 33 , the corresponding position is identified as suitable as a mounting position 41 .
  • a plurality of suitable assembly positions 41 can be identified by repeatedly carrying out at least the third step 130 for a plurality of adjustable positions 37 . The repeated execution of at least the third step 130 takes place in a loop of the computer program product 60 , which is executably stored in the evaluation unit 40 .
  • a region 28 with maximum amplitude values 17 can be identified in the detected region 26 .
  • a mounting area 42 for the acceleration sensor 10 to be mounted can be determined in the third step 130 .
  • the determined assembly area 42 there is an increased amplitude value 17 in the active operating state of the device 20, so that a vibration measurement can be carried out with increased precision.
  • FIG. 4 also shows a third stage of the claimed method 100 in an oblique view.
  • FIG. 4 shows an augmented reality representation 70 as presented to a user by an augmented reality device 72 that carries out the claimed method 100 .
  • the augmented reality device 72 is to be regarded as a display unit 75 .
  • the stage shown in FIG. 4 assumes that the second stage, as shown in FIG. 2 and FIG. 3, has been completed.
  • an assembly area 42 is identified, in which an assembly 55 of the acceleration sensor 10 can be carried out.
  • a representation 45 is created in a fourth step 140, which is displayed to the user in the augmented reality representation 70.
  • the representation 45 for the assembly area 42 is in the form of an area marking 46 which clearly shows the user the position of the assembly area 42 in an adjustable form.
  • Reich mark 46 shows a further representation 45 in the augmented reality display 70 , which is designed as a navigation mark 48 and leads the user to the intended assembly area 42 .
  • a representation 45 is shown, which is designed as an instruction marking 49 for the assembly 55 to be carried out.
  • the assembly 55 of the acceleration sensor 10 is further carried out in the fourth step 140 .
  • the assembly 55 can include establishing a communicative data connection 52 between the acceleration sensor 10 and a monitoring device 50 . In the installed state, the acceleration sensor 10 and the monitoring unit 50 belong to a vibration detection system 90 .
  • Method 100 is used to determine a mounting area 42 in which increased measurement accuracy is to be expected for acceleration sensor 10 .
  • the method 100 allows the assembly area 42 to be determined automatically and reliably. Repeated test runs of the measuring operation of the acceleration sensor 10 are therefore unnecessary.
  • the adjustable detection device 30 , the display unit 75 and the evaluation unit 40 belong to a system 80 which serves to produce the vibration detection system 90 . The manufacture of the vibration detection system 90 is thus accelerated by the claimed method 100 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un procédé (100) de fabrication d'un système de détection de vibrations (90) comprenant au moins un capteur d'accélération (10) disposé dans une région de vibration (24) d'un dispositif (20). Le procédé (100) comprend une première étape (110) au cours de laquelle le dispositif (20) se trouve dans un état de fonctionnement actif et au cours de laquelle la région de vibration (24) du dispositif (20) est au moins partiellement détectée optiquement (35) au moyen d'un dispositif de détection réglable (30). Le procédé (100) comprend en outre une deuxième étape (120) au cours de laquelle une région d'image brouillée (36) et/ou une région d'image présentant un changement d'intensité (38) sont détectées et au moins une valeur d'amplitude (17) est déterminée. Le procédé (100) comprend également une troisième étape (130) au cours de laquelle une zone de montage (42) pour le capteur d'accélération (10) est identifiée dans la région de vibration (24) du dispositif (20) sur la base de la ou des valeurs d'amplitude (17). Le procédé (100) comprend par ailleurs une quatrième étape (140) au cours de laquelle la région de montage (42) est affichée et le capteur d'accélération (10) est fixé dans la région de montage affichée (42). De plus, l'invention concerne un produit de programme d'ordinateur (60) qui est configuré pour exécuter un procédé correspondant (100). Enfin, l'invention concerne un système (80) permettant de produire un système de détection de vibrations correspondant (90).
PCT/EP2023/053107 2022-02-18 2023-02-08 Procédé de fabrication de système de détection de vibrations, produit de programme d'ordinateur et système de fabrication WO2023156273A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022201725.0A DE102022201725A1 (de) 2022-02-18 2022-02-18 Verfahren zum Herstellen eines Vibrationserfassungssystems, Computerprogrammprodukt und Herstellungssystem
DE102022201725.0 2022-02-18

Publications (1)

Publication Number Publication Date
WO2023156273A1 true WO2023156273A1 (fr) 2023-08-24

Family

ID=85381085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/053107 WO2023156273A1 (fr) 2022-02-18 2023-02-08 Procédé de fabrication de système de détection de vibrations, produit de programme d'ordinateur et système de fabrication

Country Status (2)

Country Link
DE (1) DE102022201725A1 (fr)
WO (1) WO2023156273A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6628898B2 (en) 2001-09-03 2003-09-30 Canon Kabushiki Kaisha Optical apparatus
US20130051700A1 (en) * 2011-08-31 2013-02-28 Sony Corporation Image processing apparatus, image processing method, and program
US20180317779A1 (en) * 2015-11-13 2018-11-08 Koninklijke Philips N.V. Device, system and method for sensor position guidance
US10153796B2 (en) 2013-04-06 2018-12-11 Honda Motor Co., Ltd. System and method for capturing and decontaminating photoplethysmopgraphy (PPG) signals in a vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5822450A (en) 1994-08-31 1998-10-13 Kabushiki Kaisha Toshiba Method for monitoring equipment state by distribution measurement data, and equipment monitoring apparatus
US9817408B2 (en) 2013-07-30 2017-11-14 Trane International Inc. Vibration control for a variable speed cooling system
US20190033843A1 (en) 2017-07-26 2019-01-31 Caterpillar Inc. System and method for detecting abnormal operating condition of genset power system component
DE102018103333B3 (de) 2018-02-14 2019-05-09 Gesellschaft zur Förderung angewandter Informatik eV Verfahren und System zur dynamischen Strukturanalyse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6628898B2 (en) 2001-09-03 2003-09-30 Canon Kabushiki Kaisha Optical apparatus
US20130051700A1 (en) * 2011-08-31 2013-02-28 Sony Corporation Image processing apparatus, image processing method, and program
US10153796B2 (en) 2013-04-06 2018-12-11 Honda Motor Co., Ltd. System and method for capturing and decontaminating photoplethysmopgraphy (PPG) signals in a vehicle
US20180317779A1 (en) * 2015-11-13 2018-11-08 Koninklijke Philips N.V. Device, system and method for sensor position guidance

Also Published As

Publication number Publication date
DE102022201725A1 (de) 2023-08-24

Similar Documents

Publication Publication Date Title
WO2000025088A1 (fr) Detection d'irregularites dans un surface bombee, telle que le flanc d'un pneumatique, par filtration passe-bande
DE102005040772B4 (de) Optischer Längen- und Geschwindigkeitssensor
EP2293044A2 (fr) Dispositif et procédé destinés à la détection d'impuretés
EP2769175A1 (fr) Mesure en temps réel de données de position relative et/ou de cotes géométriques d'un corps en mouvement en utilisant des moyens de mesure optique
EP3596506A1 (fr) Dispositif de rayonnement optique pour impulsions laser à optique sélective
DE102022105681A1 (de) Verfahren zur Ermittlung einer Schwingung eines Lüftungssystems
EP3755978B1 (fr) Dispositifs et procédés d'analyse de vibrations
WO2023156273A1 (fr) Procédé de fabrication de système de détection de vibrations, produit de programme d'ordinateur et système de fabrication
EP0610374B1 (fr) Procede pour la mesure des inclinaisons d'interfaces dans un systeme optique
CH626720A5 (fr)
EP3525941B1 (fr) Dispositif et procédé de prise de vue de modèles de mouvement de tamiseurs oscillants
DE102016013861A1 (de) Optischer Sensor für ein Kraftfahrzeug und Kraftfahrzeug
DE10330946A1 (de) Verfahren zur Messung von Schwingungsvorgängen und Messeinrichtung hierzu
EP0346601B1 (fr) Procédé et dispositif de mesure de la vitesse d'écoulement d'un fluide, en particulier dans un tunnel aérodynamique
DE10003675C2 (de) Vorrichtung zur Messung der Fahrflächenrauhigkeit von Schienen im Fahrbetrieb
DE102020215960A1 (de) Verfahren und Anordnung zum Ermitteln einer Position eines Objekts
DE69934472T2 (de) Bestimmung der Position der optischen Achse einer Kamera
DE102010003608A1 (de) Vorrichtung und Verfahren zur Charakterisierung eines auslenkbaren Mikrospiegels
DE102018215177A1 (de) Autofokus- und Partikelsensorvorrichtung und entsprechendes Verfahren, sowie Kamera- und Partikelsensorsystem
DE102004028191B4 (de) Verfahren und Vorrichtung zur quantitativen Erfassung der Lage der optischen Achse eines optoelektronischen Sensorsystems
DE4318692C2 (de) Verfahren zur Untersuchung von antigenhaltigen Blutserumproben
EP1872085B1 (fr) Procede pour mesurer des structures d'un objet
DE10203794A1 (de) Messeinrichtung zur optischen Wegerfassung einer Kolbenstange bei einem Druckmittelzylinder
DE102004045291A1 (de) Messung der Schwingung von Riemen bei Riementrieben
DE102007036632B4 (de) Optischer Sensor und Verfahren zum Nachweis von Objekten in einem Überwachungsbereich

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23706997

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)