Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob

High temperatures complicate the direct measurements needed for continuous characterization of the properties of molten materials such as glass. However, the assumption that geometrical changes when the molten material is in free-fall can be correlated with material characteristics such as viscosity...

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Main Authors: Mazhar Hussain, Mattias O’Nils, Jan Lundgren
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/4/1041
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author Mazhar Hussain
Mattias O’Nils
Jan Lundgren
author_facet Mazhar Hussain
Mattias O’Nils
Jan Lundgren
author_sort Mazhar Hussain
collection DOAJ
description High temperatures complicate the direct measurements needed for continuous characterization of the properties of molten materials such as glass. However, the assumption that geometrical changes when the molten material is in free-fall can be correlated with material characteristics such as viscosity opens the door to a highly accurate contactless method characterizing small dynamic changes. This paper proposes multi-camera setup to achieve accuracy close to the segmentation error associated with the resolution of the images. The experimental setup presented shows that the geometrical parameters can be characterized dynamically through the whole free-fall process at a frame rate of 600 frames per second. The results achieved show the proposed multi-camera setup is suitable for estimating the length of free-falling molten objects.
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spelling doaj.art-2edc96c6a541443b92ae89fc0d66bcbb2023-12-03T12:17:58ZengMDPI AGSensors1424-82202021-02-01214104110.3390/s21041041Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass GobMazhar Hussain0Mattias O’Nils1Jan Lundgren2STC Research Centre, Mid-Sweden University, Holmgatan 10, 85170 Sundsvall, SwedenSTC Research Centre, Mid-Sweden University, Holmgatan 10, 85170 Sundsvall, SwedenSTC Research Centre, Mid-Sweden University, Holmgatan 10, 85170 Sundsvall, SwedenHigh temperatures complicate the direct measurements needed for continuous characterization of the properties of molten materials such as glass. However, the assumption that geometrical changes when the molten material is in free-fall can be correlated with material characteristics such as viscosity opens the door to a highly accurate contactless method characterizing small dynamic changes. This paper proposes multi-camera setup to achieve accuracy close to the segmentation error associated with the resolution of the images. The experimental setup presented shows that the geometrical parameters can be characterized dynamically through the whole free-fall process at a frame rate of 600 frames per second. The results achieved show the proposed multi-camera setup is suitable for estimating the length of free-falling molten objects.https://www.mdpi.com/1424-8220/21/4/1041image processingglassmulti-camerathreshold methods
spellingShingle Mazhar Hussain
Mattias O’Nils
Jan Lundgren
Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
Sensors
image processing
glass
multi-camera
threshold methods
title Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
title_full Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
title_fullStr Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
title_full_unstemmed Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
title_short Multi-Camera Based Setup for Geometrical Measurement of Free-Falling Molten Glass Gob
title_sort multi camera based setup for geometrical measurement of free falling molten glass gob
topic image processing
glass
multi-camera
threshold methods
url https://www.mdpi.com/1424-8220/21/4/1041
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AT mattiasonils multicamerabasedsetupforgeometricalmeasurementoffreefallingmoltenglassgob
AT janlundgren multicamerabasedsetupforgeometricalmeasurementoffreefallingmoltenglassgob