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1. WO2020068711 - THICKNESS MEASUREMENT WITH INDUCTIVE AND OPTICAL DISPLACEMENT SENSORS

Publication Number WO/2020/068711
Publication Date 02.04.2020
International Application No. PCT/US2019/052541
International Filing Date 24.09.2019
IPC
G01B 7/06 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width, or thickness
06for measuring thickness
G01B 11/06 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
02for measuring length, width, or thickness
06for measuring thickness
CPC
G01B 11/0616
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
02for measuring length, width or thickness
06for measuring thickness, e.g. of sheet material
0616of coating
G01B 7/105
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width or thickness
06for measuring thickness
10using magnetic means, e.g. by measuring change of reluctance
105for measuring thickness of coating
Applicants
  • HONEYWELL INTERNATIONAL INC. [US]/[US]
Inventors
  • HUGHES, Michael Kon Yew
  • TIXIER, Sebastien
  • NEBEL, Tobias
Agents
  • BENINATI, John F.
Priority Data
16/569,21412.09.2019US
62/735,58324.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THICKNESS MEASUREMENT WITH INDUCTIVE AND OPTICAL DISPLACEMENT SENSORS
(FR) MESURE D'ÉPAISSEUR AVEC CAPTEURS DE DÉPLACEMENT INDUCTIF ET OPTIQUE
Abstract
(EN)
A sensor system (100) includes an eddy current sensor (120) including at least one coil (120a) with excitation electronics (121) coupled across the coil. An optical displacement sensor (140) is secured to the eddy current sensor so that a vertical distance between the sensors is fixed. The optical displacement sensor is located on top of and concentric with the coil so that a measurement axis of the optical displacement sensor is collinear with an axis of symmetry of the coil. A computing device (150) including a processor (151) and memory (152) is coupled to receive sensor data from the eddy current sensor and the optical displacement sensor that is adapted for analyzing the sensor data obtained from measuring a coated substrate (180) including a coating layer (187) on at least one side of a metal substrate (185) to determine at least a thickness of the coating layer.
(FR)
Système de capteur (100) comprenant un capteur de courant de Foucault (120) comprenant au moins une bobine (120a) pourvue d'électronique d'excitation (121) couplée à travers la bobine. Un capteur de déplacement optique (140) est fixé au capteur de courant de Foucault de telle sorte qu'une distance verticale entre les capteurs est fixe. Le capteur de déplacement optique est situé sur la bobine et de manière concentrique à celle-ci de telle sorte qu'un axe de mesure du capteur de déplacement optique est colinéaire avec un axe de symétrie de la bobine. Un dispositif informatique (150) comprenant un processeur (151) et une mémoire (152) est couplé pour recevoir des données de capteur provenant du capteur de courant de Foucault et du capteur de déplacement optique qui est conçu pour analyser les données de capteur obtenues à partir de la mesure d'un substrat revêtu (180) comprenant une couche de revêtement (187) sur au moins un côté d'un substrat métallique (185) pour déterminer au moins une épaisseur de la couche de revêtement.
Also published as
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