小尺寸Schmidt-Boelter热流传感器的研制

朱新新; 朱涛; 杨凯; 杨庆涛; 王辉

doi:10.11729/syltlx20200065

小尺寸Schmidt-Boelter热流传感器的研制

doi: 10.11729/syltlx20200065

中国空气动力研究与发展中心超高速空气动力研究所，四川绵阳　621000

基金项目: 中国空气动力研究与发展中心风雷青年创新基金（KT-FLJJ-2019-002）

详细信息

作者简介:
朱新新：（1988-），男，云南保山人，硕士，助理研究员。研究方向：气动热与热防护试验测试技术。通信地址：四川省绵阳市二环路南段6号15信箱504分箱（621000）。E-mail：xinxincomplex@126.com

通讯作者:
E-mail：zhutao00011@sina.com

中图分类号: V441
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出版历程
- 收稿日期: 2020-06-01
- 修回日期: 2020-07-20
- 网络出版日期: 2021-08-26
- 刊出日期: 2021-08-31

Development of small size Schmidt-Boelter heat flux sensor

Hypervelocity Aerodynamics Institute of China Aerodynamics Research and Development Center, Mianyang Sichuan　621000, China

摘要

摘要: 为满足常规高超声速风洞试验的热流测量需求，研制了一种小尺寸Schmidt-Boelter热流传感器。建立了传感器仿真模型并基于该模型对其结构尺寸开展了优化设计。根据优化结果，制作了尺寸为Φ 3×10 mm的传感器样件。在弧光灯热流标定系统上进行了性能测试，试验结果表明：该传感器灵敏度系数大于30 μV·m²/kW，响应时间约50 ms。
- 热流测量 /
- Schmidt-Boelter传感器 /
- 仿真优化 /
- 热流标定 /
- 常规高超风洞
Abstract: A kind of small size Schmidt-Boelter Gage was successfully developed for measuring heat flux in conventional hypersonic wind tunnel test. The simulation model of the Schmidt-Boelter Gage was built. The structure and size of the sensor were optimized based on the simulation model. According to the optimized results, the sensor with the size of Φ 3×10 mm was made and tested in the arc lamp heat flux calibration system. The results show that the size and performance of the developed sensor are comparable to the foreign sensor level. The sensitivity is greater than 30 μV·m²/kW, and the response time is about 50 ms.
- heat flux measurement /
- Schmidt-Boelter Gage /
- simulation optimization /
- heat flux calibration /
- conventional hypersonic wind tunnel

HTML全文

图 1 热阻层

Figure 1. Thermal resistance layer

下载: 全尺寸图片幻灯片

图 2 两种接触结构

Figure 2. Two kinds of contact structure

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图 3 温度分布

Figure 3. Temperature distribution

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图 4 温升和归一化热流曲线

Figure 4. Temperature rise and heat flux normalized curve

下载: 全尺寸图片幻灯片

图 5 S-B热流传感器

Figure 5. Schmidt Boelter Gage

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图 6 热流标定曲线

Figure 6. Heat flux calibration curve

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图 7 响应时间曲线

Figure 7. Response time curve

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图 8 长时间测量曲线

Figure 8. Test curve during long time

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表 1 两种接触结构的仿真结果

Table 1. The simulation results of two contact structures

状态编号	k_H-AlN/（W·m^–2·K^–1）	k_H-Al/（W·m^–2·K^–1）	$S_{q}^{\prime} $ /（K·m²·kW^–1）	t_0.95/ms	$t_{0.95}^{\prime} $/ms	接触结构
A	1000	100	3.67	685	195	全接触
B	1000	500	3.85	840	600	全接触
C	10 000	100	0.41	445	405	全接触
D	1000	100	3.60	610	15	两端
E	1000	500	3.63	670	25	两端
F	10 000	100	0.37	135	20	两端

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表 2 传感器标定结果

Table 2. The calibration results of two sensors

传感器编号	S_q/（μV·m²·kW^–1）	t_0.95/ms	$t_{0.95}^{\prime} $/ms
1#	31	99	49
2#	34	121	57

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