将动态校准的可追溯性扩展到高压状态,使用冲击管
Eynas Amer1, Gustav Jönsson1, Olle Penttinen1
1Measurement Science and Technology, RISE Research Institutes of Sweden, 504 62 Borås, Sweden.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
研究人员在瑞典RISE增强了一个冲击管 (ST),用于高压测量. 三种配置实现了广泛的压力和频率范围,验证了测试中的设备 (DUT) 动态响应.
科学领域:
- 计量学 计量学 计量学
- 机械工程 机械工程
- 应用物理 应用物理
背景情况:
- 冲击管 (ST) 对于高压动态测量至关重要.
- 将ST功能扩展到更高的压力和频率对于先进的材料和设备表征至关重要.
- 现有的ST通常在压力范围或频率响应方面具有局限性.
研究的目的:
- 在瑞典RISE研发和展示了一种增强的冲击管 (ST) 设施,能够在高压状态下运行.
- 评估三种不同的ST配置,以评估它们的性能和在扩展测量能力中的应用性.
- 在不同配置中对正在测试的设备 (DUT) 进行表征,以验证扩展的操作范围.
主要方法:
- 开发了一种具有三种配置的冲击管 (ST):常规,放大系统和收圆.
- 使用常规和放大配置中的参考压力的既定分析解决方案.
- 使用数值模拟来计算汇聚形的参考压力.
- 测试设备 (DUT) 的特征,以展示每个配置的功能和局限性.
主要成果:
- 在测试中的设备 (DUT) 动态响应中,在它们的重叠区域中,在所有三个配置中都表现出良好的一致性.
- 成功地将工作压力范围从0.1 MPa扩大到25 MPa.
- 实现了从0.5kHz到500kHz的广泛频率测量范围.
- 每个配置的估计测量不确定性.
结论:
- 这三种冲击管 (ST) 配置有效地相互补充,以覆盖扩展的压力和频率范围.
- 开发的ST设施为高压动态测量提供了一个多功能平台.
- 这些发现验证了分析和数值方法用于不同ST配置的参考压力测定.
相关概念视频
Constant Pressure Calorimetry
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
Measurement of Fluid Pressure
Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...


