粉尘质量浓度的光纤光栅传感测量技术

丁云峰; 郭永兴; 陈先锋; 杨冰涛; 熊丽

doi:10.11883/bzycj-2017-0253

粉尘质量浓度的光纤光栅传感测量技术

doi: 10.11883/bzycj-2017-0253

丁云峰¹,
郭永兴^{2, 3},
陈先锋^1, ,,
杨冰涛¹,
熊丽^{2, 3}

1.
武汉理工大学资源与环境工程学院, 湖北武汉 430070
2.
武汉科技大学冶金装备及其控制教育部重点实验室, 湖北武汉 430081
3.
武汉科技大学机械传动与制造工程湖北省重点实验室, 湖北武汉 430081

基金项目:

国家自然科学基金 51374164

国家自然科学基金 51605348

国家重点研发计划 2016YFC0802801

国家重点研发计划 2017YFC0804705

湖北省自然科学基金 2016CFB116

详细信息

作者简介:
丁云峰(1993-), 男, 硕士研究生

通讯作者:
陈先锋, cxf618@whut.edu.cn

中图分类号: O389;TN253
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- 文章访问数: 5517
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- 被引次数: 17
出版历程
- 收稿日期: 2017-07-19
- 修回日期: 2017-08-17
- 刊出日期: 2019-01-25

Measuring technique for dust mass concentration using fiber Bragg grating sensor

DING Yunfeng¹,
GUO Yongxing^{2, 3},
CHEN Xianfeng^{1
, ,},
YANG Bingtao¹,
XIONG Li^{2, 3}

1.
School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
2.
Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
3.
Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China

摘要

摘要: 粉尘质量浓度是粉尘爆炸的关键因素，针对目前对本质安全、可实时监测预警的粉尘质量浓度测量技术的迫切需求，提出一种基于光纤光栅和光纤准直器的新型测量技术，在阐述其测量理论的基础上，搭建测量和实验装置实物。对200、300和400目这3种粒径规格的小麦粉尘分别开展实验测量，结果表明：所提出的测量技术的光功率输出和粉尘质量浓度呈线性关系；并与标准的称重法得到的粉尘质量浓度开展对比，验证了光纤光栅测量技术的有效性。
- 光纤光栅 /
- 光纤准直器 /
- 粉尘质量浓度检测 /
- 安全监测
Abstract: Accidents resulting from combustible dust explosion occur frequently and pose a serious hazard to the safety of industrial production. Dust concentration is a critical factor involved in the explosion leading to such accidents, and therefore its precise and fast measurement can provide an intrinsically safe and real-time monitoring technology for preventing such accidents. In this paper, we proposed a new measuring technique based on the fiber Bragg grating and the optical fiber collimator. We first explained the measurement theory and constructed the measuring and experimental device, and then performed experiments on wheat dusts with three grain sizes of 200 meshes, 300 meshes and 400 meshes and carried out the related investigation. The results show that the optical power output of the device and the dust concentration are linearly correlated. We also carried out contrastive experiments with the dust concentration obtained using the standard weighing method, and verified the effectiveness of the FBG measuring technique proposed. This study provides a new way to conduct dust concentration monitoring, and holds broad prospects for further research and application.
- fiber Bragg grating /
- optical fiber collimator /
- dust concentration measuring /
- safety monitoring

HTML全文

图 1 光纤光栅传感原理示意图

Figure 1. Illustration of the mechanism of fiber Bragg grating

下载: 全尺寸图片幻灯片

图 2 粉尘质量浓度测量原理示意图

Figure 2. Illustration of the measuring principle for dust concentration

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图 3 光纤光栅粉尘质量浓度测量装置

Figure 3. Fiber Bragg grating measuring equipment for dust concentration

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图 4 光纤光栅光功率和200目粉尘质量浓度对应关系

Figure 4. Correlation between FBG optical power and dust mass concentration of 200 meshes

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图 5 光纤光栅光功率和300目粉尘质量浓度对应关系

Figure 5. Correlation between FBG optical power and dust mass concentration of 300 meshes

下载: 全尺寸图片幻灯片

图 6 光纤光栅光功率和400目粉尘质量浓度对应关系

Figure 6. Correlation between FBG optical power and dust mass concentration of 400 meshes

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图 7 不同目数的粉尘实验结果对比

Figure 7. Test results as compared for dusts with different meshes

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图 8 光纤光栅测量结果和称重法测量结果对比

Figure 8. Test results as compared between FBG method and weight method

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