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1. (WO2019001738) DEVICE FOR CONTACTLESSLY DETERMINING THE STRAIGHTNESS OF AT LEAST ONE LONG PRODUCT AND METHOD FOR CALIBRATING A DEVICE OF THIS KIND
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Pub. No.: WO/2019/001738 International Application No.: PCT/EP2017/066339
Publication Date: 03.01.2019 International Filing Date: 30.06.2017
IPC:
G01S 7/497 (2006.01) ,G01S 17/00 (2006.01) ,G01S 17/88 (2006.01) ,G01B 11/30 (2006.01)
G PHYSICS
01
MEASURING; TESTING
S
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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
497
Means for monitoring or calibrating
G PHYSICS
01
MEASURING; TESTING
S
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
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
G PHYSICS
01
MEASURING; TESTING
S
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
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88
Lidar systems, specially adapted for specific applications
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11
Measuring arrangements characterised by the use of optical means
30
for measuring roughness or irregularity of surfaces
Applicants:
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. [DE/DE]; Hansastrasse 27 c 80686 München, DE
Inventors:
CARL, Daniel; DE
JETTER, Volker; DE
SCHMID-SCHIRLING, Tobias; DE
Agent:
RÜTTGERS, Joachim; RACKETTE PATENTANWÄLTE PARTG MBB Kaiser-Joseph-Strasse 179 Postfach 13 10 79098 Freiburg im Breisgau, DE
Priority Data:
Title (EN) DEVICE FOR CONTACTLESSLY DETERMINING THE STRAIGHTNESS OF AT LEAST ONE LONG PRODUCT AND METHOD FOR CALIBRATING A DEVICE OF THIS KIND
(FR) DISPOSITIF SERVANT À DÉFINIR SANS CONTACT LA RECTITUDE D'AU MOINS UN PRODUIT ALLONGÉ ET PROCÉDÉ D'ÉTALONNAGE D'UN DISPOSITIF DE CE TYPE
(DE) VORRICHTUNG ZUM BERÜHRUNGSFREIEN BESTIMMEN DER GERADHEIT WENIGSTENS EINES LANGPRODUKTS UND VERFAHREN ZUM KALIBRIEREN EINER DERARTIGEN VORRICHTUNG
Abstract:
(EN) The invention relates to a device for contactlessly determining the straightness of at least one long product (103). Spot or linear measurement radiation (109) is moved over the long product (103) at least transversely to the longitudinal direction of the long product (103) by a radiation source module (106) during a measurement cycle. The intensity of the detection radiation (118) arising from the incidence area (115) of the measurement radiation (109) is recorded in a time-resolved fashion by means of a radiation detection module (121) and supplied to a control and evaluation unit (112). The location in space of the incidence regions (115) and hence the straightness of a long product (103) can be determined from location information regarding the incidence regions (115) in the longitudinal direction and from characteristic intensity values for the detection radiation (118). A reference straightness may be determined for calibration by executing a plurality of measurement cycles while rotating a long product (103) of unknown straightness.
(FR) L'invention concerne un dispositif servant à définir sans contact la rectitude d'au moins un produit allongé (103). Un rayonnement de mesure (109) de type ponctuel ou linéaire se déplace pendant un cycle de mesure au-dessus du produit allongé (103) au moins transversalement par rapport à la direction longitudinale du produit allongé (103) au moyen d'un module de source de rayonnement (106). L'intensité d'un rayonnement de détection (118) provenant d'une zone d'impact (115) du rayonnement de mesure (109) est relevée avec une résolution temporelle au moyen d'un module de détection de rayonnement (121) et est amenée à une unité de commande et d'analyse (112). Il est possible de définir, à partir d'informations d'emplacement concernant les zones d'impact (115) dans la direction longitudinale et à partir de valeurs d'intensité caractéristiques du rayonnement de détection (118), la position spatiale des zones d'impact (115) et ainsi la rectitude d'un produit allongé (103). Il est possible de définir, en vue d'un étalonnage, en exécutant plusieurs cycles de mesure, lors de la rotation d'un produit allongé (103) à rectitude inconnue, une rectitude de référence.
(DE) Bei einer Vorrichtung zum berührungsfreien Bestimmen der Geradheit wenigstens eines Langprodukts (103) wird mittels eines Strahlungsquellenmoduls (106) wenigstens quer zur Längsrichtung des Langprodukts (103) punktartige oder linienartige Messstrahlung (109) während eines Messzyklus über das Langprodukt (103) bewegt. Die Intensität von aus einem Auftreff bereich (115) der Mess-Strahlung (109) stammender Detektionsstrahlung (118) wird mittels eines Strahlungsdetektionsmoduls (121 ) zeitaufgelöst aufgenommen und einer Steuer- und Auswerteeinheit (112) eingespeist. Aus Ortsinformationen zu den Auftreffbereichen (115) in Längsrichtung und aus charakteristischen Intensitätswerten der Detektionsstrah-lung (118) lässt sich die räumliche Lage der Auftreffbereiche (115) und damit die Geradheit eines Langprodukts (103) bestimmen. Für eine Kalibrierung lässt sich mit Durchführen von mehreren Messzyklen bei Drehen eines Langprodukts (103) unbekannter Geradheit eine Referenzgeradheit bestimmen.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)