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FBG超声波焊接封装及其弯曲传感特性

杨泓, 李玉龙, 董阳平, 崔庆波

杨泓, 李玉龙, 董阳平, 崔庆波. FBG超声波焊接封装及其弯曲传感特性[J]. 焊接学报, 2019, 40(8): 69-75. DOI: 10.12073/j.hjxb.2019400211
引用本文: 杨泓, 李玉龙, 董阳平, 崔庆波. FBG超声波焊接封装及其弯曲传感特性[J]. 焊接学报, 2019, 40(8): 69-75. DOI: 10.12073/j.hjxb.2019400211
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YANG Hong, LI Yulong, DONG Yangping, CUI Qingbo. Ultrasonic welding packaging of FBG and its bending sensing characteristics[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 69-75. DOI: 10.12073/j.hjxb.2019400211
Citation: YANG Hong, LI Yulong, DONG Yangping, CUI Qingbo. Ultrasonic welding packaging of FBG and its bending sensing characteristics[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 69-75. DOI: 10.12073/j.hjxb.2019400211
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FBG超声波焊接封装及其弯曲传感特性

  • 南昌大学 江西省机器人与焊接自动化重点实验室, 南昌 330031

基金项目: 国家自然科学基金资助项目（51265035）；江西省主要学科学术和技术带头人资助项目（20182BCB22001）；江西省重点研发项目（20171BBE50009）

Ultrasonic welding packaging of FBG and its bending sensing characteristics

  • Key Lab for Robot & Welding Automation of Jiangxi Province, Nanchang University, Nanchang 330031, China

摘要

    摘要
  • 摘要: 为获得金属层片封装的光纤布拉格光栅（FBG）片状传感头，预先对裸光栅表面化学镀加电镀镍，然后对金属化FBG进行超声波焊6061铝合金薄片封装.采用拉伸试验测试超声波焊接结合强度和金属化FBG的嵌入强度，文中还研究了FBG的光谱特性、温度传感特性和三点弯曲应变传感特性.结果表明，当焊接压力为5.4 MPa，焊接时间为45 ms，镀层厚度为45 μm时，焊接封装效果较好；超声波焊接封装后铝箔的平均撕裂强度可达58.96 N，金属化FBG嵌入铝箔的拉断力可达8.89 N；封装后的FBG仍保持了良好的波形，平均温度灵敏度系数为29.07 pm/℃，平均三点弯曲应变灵敏度系数为0.096 7 pm/με.
    Abstract: In order to obtain metal foil packaged FBG sensor, FBG was firstly electroless-electroplated with a nickel layer and then packaged in 6061 aluminum foil by ultrasonic welding. After that, the tensile strength of the ultrasonic welding and the embedding strength of the metallized FBG were measured by tensile shear test. Moreover, spectral characteristics, temperature sensing property and bending strain sensing properties of the FBG were also studied in the study. Experimentally, when welding pressure was 5.4 MPa, welding time was 45 ms and coating thickness was 45 μm, the welded encapsulation exhibited a good effect; the average tear strength of aluminum foils reached up to 58.96 N, and the tensile shear strength of metallized FBG embedded aluminum foils reached up to 8.89 N. The results shown that after packaging, the FBG still maintained good waveform. Moreover, the average temperature sensitivity reached up to 29.07 pm/℃ and the average strain sensitivity reached up to 0.0967 pm/με.
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    • 参考文献(17)
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  • 收稿日期:  2018-08-11

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