压力介质对带引压管路压力测试系统动态特性影响

doi:10.3969/j.issn.1000-1158.2023.04.12

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摘要使用激波管对带引压管路压力测试系统进行校准时,管路中的介质不同会导致压力测试系统的动态特性发生变化,进而影响对压力测试系统性能的评定。通过建立压力管路中的压力传播模型,分析了带引压管路压力测试系统动态特性影响机理和因素,开展了空气、癸二酸和硅脂3种压力介质条件下带阻尼孔和不带阻尼孔压力测试系统的激波管动态压力校准实验,结果表明,压力介质使对带引压管路压力测试系统上升时间、谐振频率等动态特性影响明显,谐振频率变化达到10倍以上。

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	王洪博
	杨扬仲夫
	王晓文
	王辰辰

关键词 ：计量学, 压力测试系统, 动态特性, 引压管路, 压力介质, 激波管

Abstract：When using shock tube for dynamic calibration of pressure measuring system with transmission pipe, the medium in the pipe may change the dynamic characteristics of pressure measuring system, which in turn affects the evaluation of the performance of the pressure measuring system. By establishing the pressure propagation model in the pipe, the principle and factors affecting the dynamic characteristics of the pressure measuring system with transmission pipe were analyzed, and the dynamic pressure calibration experiment using shock tube for pressure measuring system with damping hole and without damping hole under the conditions of air, decanedioic acid and silicone grease was carried out. The experimental results showed that the medium had a significant effects on the dynamic characteristics of the pressure measuring system, such as rise time and resonance frequency. The resonance frequency varies by more than 10 times.

Key words： metrology;pressure measuring system;dynamic characteristics;pressure transmission pipe;pressure medium shock tube

收稿日期: 2022-05-13 发布日期: 2023-04-18

PACS:

TB935

作者简介: 王洪博(1980-), 男,山东德州人, 北京长城计量测试技术研究所高级工程师, 博士, 主要从事动态压力、声学测试与校准技术研究。Email:whbnba@163.com

引用本文:

王洪博,杨扬仲夫,王晓文,王辰辰. 压力介质对带引压管路压力测试系统动态特性影响[J]. 计量学报, 2023, 44(4): 568-574.
WANG Hong-bo,YANG Yang-zhongfu,WANG Xiao-wen,WANG Chen-chen. Effects of Pressure Medium on Dynamic Characteristics of Pressure Measuring System with Transmission Pipe. Acta Metrologica Sinica, 2023, 44(4): 568-574.

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