| 多点式高速红外测温系统研制 |
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| 引用本文： | 陈浩森,郭亚洲,朱盛鑫,李玉龙,方岱宁.多点式高速红外测温系统研制[J].实验力学,2019(2):240-248. |
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| 作者姓名： | 陈浩森 郭亚洲 朱盛鑫 李玉龙 方岱宁 |
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| 作者单位： | 北京理工大学先进结构技术研究院;西北工业大学航空学院;西北工业大学飞行器结构力学与强度技术国防重点学科实验室 |
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| 摘 要： | 冲击载荷作用下,绝热变形引起的温度变化是研究材料动态力学行为的关键参数,因此通过实验方法原位测量温度场数据具有重要意义。本文通过解决光敏元材料串音干扰、红外光学增强等关键技术难题,研制出8×1列的多点式高速(μs量级)高温区间(353～1073K)红外测温系统。然后,采用Rittle提出的剪压(SC,shear-compression)形状的试样,原位测量了TC4产生绝热剪切失稳时的多点温度。实验数据与Rittle报道的测温结果接近,由此验证了本系统的有效性。
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| 关 键 词： | 多点式高速红外测温系统 绝热剪切 分离式霍普金森压杆 原位测温实验 |
On the development of multi-point high speed infrared temperature measurement system |
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| CHEN Hao-sen,GUO Ya-zhou,ZHU Sheng-xin,LI Yu-long,FANG Dai-ning.On the development of multi-point high speed infrared temperature measurement system[J].Journal of Experimental Mechanics,2019(2):240-248. |
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| Authors: | CHEN Hao-sen GUO Ya-zhou ZHU Sheng-xin LI Yu-long FANG Dai-ning |
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| Institution: | (Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China;School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;National Defense Key Laboratory of Aircraft Structure Mechanics and Strength Technology. Northwestern Polytechnical University, Xi'an 710072, China) |
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| Abstract: | Temperature variation caused by adiabatic deformation is the key parameter to study dynamic mechanical behavior of material under impact load. So, it is of great significance to measure the temperature field data in-situ through experimental method. In the paper, by solving the key technical problems such as crosstalk interference of photosensitive meta material and infrared optical enhancement, the 8×1 row multi-point high speed (μs order of magnitude) infrared temperature (353~1073K) measuring system has been developed. Furthermore, the multi-point temperature during adiabatic shear instability of TC4 was measured in-situ by using the specimen with shear-compression shape proposed by Rittle. Experimental data are close to the measured temperature reported by Rittle, which validates the effectiveness of system. |
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| Keywords: | multi-sensors high speed infrared measuring temperature system adiabatic shear split Hopkinson pressure bar in-suit temperature measurement experimental |
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