Characterization of ceramics based on laser speckle photometry

IF 0.8 Q4 INSTRUMENTS & INSTRUMENTATION

Journal of Sensors and Sensor Systems Pub Date : 2020-10-20 DOI:10.5194/jsss-9-345-2020

Lili Chen, U. Cikalova, B. Bendjus, S. Muench, M. Roellig

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引用次数: 4

Abstract

Abstract. Advanced ceramic components are frequently used in industrial applications. As a brittle material, ceramic reacts very suddenly to excessively high stresses. Existing defects lead to rapid crack growth followed by spontaneous destruction. This leads to a functional failure of the entire component. It is therefore important to develop innovative techniques to ensure a good quality condition of ceramic products. Laser speckle photometry (LSP) is an optical nondestructive testing method. It is based on the dynamic analysis of time-resolved speckle patterns that are generated by an external excitation. In this paper, we will present two investigations on ceramic components using the LSP technique. One is the nondestructive stress characterization on ceramic surfaces, and the other is the defect detection on ceramics components. The aim is to improve the quality and safety control of ceramic production in the challenging industrial field. Preliminary results have shown the potential of the LSP sensor system for the nondestructive characterization of ceramics in terms of stress monitoring and surface defect detection.

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基于激光散斑光度法的陶瓷表征

摘要先进的陶瓷元件经常用于工业应用。作为一种脆性材料，陶瓷对过高的应力反应非常突然。现有缺陷导致裂纹快速扩展，随后自发破坏。这将导致整个组件的功能故障。因此，开发创新技术以确保陶瓷产品的良好质量是非常重要的。激光散斑测光(LSP)是一种光学无损检测方法。它是基于外部激励产生的时间分辨散斑图案的动态分析。在本文中，我们将提出两个研究陶瓷组件使用LSP技术。一种是陶瓷表面的无损应力表征，另一种是陶瓷部件的缺陷检测。目的是在具有挑战性的工业领域提高陶瓷生产的质量和安全控制。初步结果表明，LSP传感器系统在应力监测和表面缺陷检测方面具有陶瓷无损表征的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sensors and Sensor Systems INSTRUMENTS & INSTRUMENTATION-

CiteScore

2.30

自引率

10.00%

发文量

审稿时长

23 weeks

期刊介绍： Journal of Sensors and Sensor Systems (JSSS) is an international open-access journal dedicated to science, application, and advancement of sensors and sensors as part of measurement systems. The emphasis is on sensor principles and phenomena, measuring systems, sensor technologies, and applications. The goal of JSSS is to provide a platform for scientists and professionals in academia – as well as for developers, engineers, and users – to discuss new developments and advancements in sensors and sensor systems.