压力敏感涂料PSP宽域(1~600 kPa)静态标定方法研究

祝勇; 董哲; 彭迪; 刘应征

doi:10.11729/syltlx20200138

压力敏感涂料PSP宽域(1~600 kPa)静态标定方法研究

祝勇^{1, 3,},
董哲^{2, 3},
彭迪^{2, 3, ,},
刘应征^{1, 2, 3}

1.
上海交通大学中英国际低碳学院, 上海 201306
2.
上海交通大学机械与动力工程学院叶轮机械研究所, 上海 200240
3.
上海交通大学燃气轮机研究院, 上海 200240

基金项目:

国家自然科学基金项目"流体力学压力与温度场光学测量原理及方法" 12022202

详细信息

作者简介:
祝勇(1996-), 男, 湖北鄂州人, 硕士研究生。研究方向: 压敏涂料的标定方法, 特征图案设计及三维重建。通信地址: 上海市浦东新区上海交通大学中英国际低碳学院(201306)。E-mail: zhuzh2018@sjtu.edu.cn

通讯作者:
彭迪, E-mail: idgnep8651@sjtu.edu.cn

中图分类号: TK312
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出版历程
- 收稿日期: 2020-11-01
- 修回日期: 2020-12-10
- 刊出日期: 2021-06-24

A study of a wide range (1-600 kPa) static calibration method for pressure sensitive paints

ZHU Yong^{1, 3,},
DONG Zhe^{2, 3},
PENG Di^{2, 3, ,},
LIU Yingzheng^{1, 2, 3}

1.
China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, China
2.
Turbomachinery Research Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3.
Institute of Gas Turbine, Shanghai Jiao Tong University, Shanghai 200240, China

摘要

摘要: 压力敏感涂料PSP是一种先进的光学测试技术。涂料的标定误差是该技术的主要误差来源之一。压敏漆的测量范围正逐步从常规压力区间向超低压和超高压拓展，因此需要开发压力调节范围大、精度高的标定系统。本文将现有的变压力法和变浓度法相结合，提出了一种新型的PSP宽域压力标定方法及系统。通过理论计算的方式，分析了该系统与ISSI公司的商用PSP标定系统的性能差异。结果表明：PSP宽域压力标定系统在低压区（1~20 kPa）标定误差能够控制在0.5 kPa范围内，性能优于ISSI标定系统；中压区（20~200 kPa）与ISSI标定系统性能趋同，误差在4%以内，且随着压力增大，误差降低；高压区（200~600 kPa）可以弥补ISSI无法标定400 kPa以上范围的不足，能实现超高压环境中的PSP标定。本文还对最常用的两种快响应PSP进行了标定实验，结果表明：本文提出的系统标定精度高，能实现PSP宽域标定。
- 压力敏感涂料 /
- 误差分析 /
- 氧分压 /
- 宽域标定
Abstract: Pressure sensitive paint is an advanced optical testing technology. The calibration error of paint is one of the main error sources of this technology. The measuring range of pressure sensitive paint is gradually expanding from the conventional pressure range to ultra-low pressure and ultra-high pressure. Therefore, it is necessary to develop a calibration system with a large pressure adjustment range and high precision. A new PSP wide range pressure calibration method and system are proposed by combining the existing method of variable pressure with the method of variable concentration. The performance difference between this system and ISSI's commercial calibration system is studied by theoretical calculation. The results show that the calibration error of the PSP wide range pressure calibration system in the low-pressure area (1-20 kPa) can be controlled within 0.5 kPa, and its performance is better than that of the ISSI calibration system. In the medium-pressure area (20-200 kPa), the error of this system is under 4%, which is close to that of the ISSI calibration system, and the error decreases with the increase of pressure. In the high-pressure area (200-600 kPa), it has a broader calibration range and can realize the calibration of PSP in an ultra-high-pressure environment (400-600 kPa). This paper also carried out calibration tests on the two most commonly used quick response PSPs. The results show that proposed system has high calibration accuracy and can realize the wide range calibration of PSP.
- pressure sensitive paint /
- error analysis /
- oxygen partial pressure /
- wide range calibration

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图 1 PSP测量原理示意图

Fig. 1 PSP measurement principle diagram

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图 2 PSP标定系统组成

Fig. 2 PSP calibration system composition

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图 3 压力控制盒连接原理图

Fig. 3 Schematic figure of pressure control box connection

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图 4 PSP数据处理过程

Fig. 4 PSP data processing

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图 5 低压段等效压力曲线

Fig. 5 Equivalent pressure curve of the low-pressure area

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图 6 低压段压力误差曲线

Fig. 6 Pressure error curve of low-pressure area

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图 7 中压段等效压力曲线

Fig. 7 Equivalent pressure curve of the middle-pressure area

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图 8 中压段压力误差曲线

Fig. 8 Pressure error curve of middle-pressure area

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图 9 高压段等效压力曲线

Fig. 9 Equivalent pressure curve of high-pressure area

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图 10 高压段压力误差曲线

Fig. 10 Pressure error curve of high-pressure area

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图 11 标定压力精度提高方案研究

Fig. 11 Research on improving the accuracy of calibration pressure

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图 12 PC PSP低压区的标定测量结果

Fig. 12 PC PSP calibration measurement results in low-pressure area

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图 13 MP PSP低压区的标定测量结果

Fig. 13 MP PSP calibration measurement results in low-pressure area

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图 14 PC PSP中压区的标定测量结果

Fig. 14 PC PSP calibration measurement results in middle-pressure area

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图 15 MP PSP中压区的标定测量结果

Fig. 15 MP PSP calibration measurement results in middle-pressure area

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图 16 PC PSP高压区的标定测量结果

Fig. 16 PC PSP calibration measurement results in high-pressure area

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图 17 MP PSP高压区的标定测量结果

Fig. 17 MP PSP calibration measurement results in high-pressure area

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表 1 压力等效换算表

Table 1 Pressure equivalent conversion table

压力区	压力范围	氧分压范围	氧气浓度	标定腔内总压	氧气浓度误差
低压段	1~20 kPa	0.2~4.0 kPa	保持2%	10~200 kPa	小于读数的1%
中压段	20~200 kPa	4.0~40.0 kPa	保持21%	20~200 kPa	-
高压段	200~600 kPa	40.0~120.0 kPa	保持70%	57~171 kPa	小于读数的1%

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施引文献(5)

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3.	荆志伟，王立波，唐矗. 基于曲面样条插值的压力敏感涂料测压数据修正方法. 实验流体力学. 2023(06): 112-119 . 本站查看