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首页> 外文期刊>Sensors Journal, IEEE >Development of High-Sensitivity and Low-Cost Electroluminescent Strain Sensor for Structural Health Monitoring
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Development of High-Sensitivity and Low-Cost Electroluminescent Strain Sensor for Structural Health Monitoring

机译：用于结构健康监测的高灵敏度，低成本电致发光应变传感器的开发

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Visualized strain/stress sensing is receiving interests in structural health monitoring area, but former approaches cannot be effectively applied to civil infrastructure monitoring, because of limited sensitivity to low-level response and/or limited response to civil structures for both static and dynamic strain/stress. This paper presents a high-sensitivity and low-cost method to visualize the strain by employing the precisely controllable Wheatstone bridge and monochrome electroluminance (EL) technology. A sensor prototype is developed to convert the structural strain responses into visible brightness change with brightness change mode (BCM) and to color change with color alternation mode (CAM). In the BCM, the brightness can be changed according to the strain change. In the CAM, two different-color EL panels are used to light on to indicate the necessity for the professional structural health evaluation. Brightness linearity evaluation results show that the BCM is suitable for both static and dynamic low-level strain visualization. Bill of materials shows the cost of the prototype is as low as U.S. $46 including the EL panels.
机译：可视化应变/应力感测在结构健康监测领域引起了人们的兴趣，但是以前的方法由于对低水平响应的敏感性有限和/或对静态和动态应变/强调。本文提出了一种高灵敏度，低成本的方法，即通过采用可精确控制的惠斯通电桥和单色电致发光（EL）技术来可视化应变。开发了传感器原型，以将结构应变响应转换为通过亮度变化模式（BCM）可见的亮度变化，并通过颜色交替模式（CAM）转换为颜色变化。在BCM中，可以根据应变变化来改变亮度。在CAM中，使用了两个不同颜色的EL面板来点亮，以指示进行专业结构健康评估的必要性。亮度线性评估结果表明，BCM适用于静态和动态低水平应变可视化。材料清单显示，包括EL面板在内的原型成本低至46美元。

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