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在弹道测试中对弹药动态压力测量链的建模
Caio Bittencourt Cardoso Felix1, Khrissy Aracélly Reis Medeiros2, Carlos Roberto Hall Barbosa1
1Postgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Marquês de São Vicente Street, 225, Gávea, Rio de Janeiro 22451-900, Brazil.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
这项研究模拟了压电传感器和充电放大器,用于准确的弹药测试. 开发的模型有效模拟动态压力测量,这对于武器和弹药性能分析至关重要.
科学领域:
- 机械工程 机械工程
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
背景情况:
- 准确的内部动力压力测量对于弹药开发和性能分析至关重要.
- 了解测量链 (零电传感器和电荷放大器) 的电气特性对于设计室内弹道压力测量系统至关重要.
研究的目的:
- 描述和建模一个压电传感器及其相关的电荷放大器.
- 开发用于弹药测试的动态压力测量链的综合模型.
主要方法:
- 使用阻抗分析和Butterworth-Van Dyke建模,对压电变频器进行表征.
- 通过响应分析和LTSpice模拟进行充电放大器的表征.
- 使用脉冲信号开发和模拟一个完整的测量链模型.
主要成果:
- 这种压电式传感器是用Butterworth-Van Dyke模型准确建模的.
- 使用LTSpice模拟技术有效地建模了充电放大器.
- 综合测量链模型与原始压力曲线相比显示出较低的误差,验证了其有效性.
结论:
- 开发的模型准确地代表了压电传感器和电荷放大器系统.
- 该模型有效地模拟弹药测试中的内部动态压力测量.
- 该研究证实了该模型在分析压力变化和校准期间信号衰减时的适用性.
相关概念视频
01:16Measurement of Fluid Pressure
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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...
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01:24Static, Stagnation, Dynamic and Total Pressure
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The concept of static, stagnation, dynamic, and total pressure is fundamental in fluid dynamics, often explained using Bernoulli's equation:
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