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A study on dynamic pressure sensor based on Pitot tube structure.

Hao Yu1, Xiaofeng Wang1, Yan Liu1,2

  • 1State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China.

The Review of Scientific Instruments
|March 26, 2024
PubMed
Summary
This summary is machine-generated.

A new composite sensor accurately measures shock wave dynamic pressure. This method effectively evaluates ammunition system damage effects, with pressure decreasing as distance increases.

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Area of Science:

  • Engineering
  • Aerospace
  • Materials Science

Background:

  • Accurate dynamic pressure measurement is crucial for shock wave analysis.
  • Existing methods face challenges in specialized testing environments.
  • Understanding shock wave dynamics is vital for system safety and performance.

Purpose of the Study:

  • To propose a composite dynamic pressure sensor design method for shock waves.
  • To analyze sensor aerodynamic characteristics and optimize structural parameters.
  • To establish a dynamic pressure testing system for shock wave environments.

Main Methods:

  • Sensor design based on shock wave formation, propagation, and Pitot tube principles.
  • FLUENT simulation for aerodynamic analysis and parameter determination.
  • Experimental validation using dynamic pressure tests with varying 2,4,6-trinitrotoluene (TNT) equivalents.

Main Results:

  • The proposed sensor design method accurately measures dynamic pressure signals.
  • Sensor performance was optimized through FLUENT simulations.
  • Dynamic pressure gain multiple decreases with increasing proportional distance.

Conclusions:

  • The developed sensor and testing method effectively evaluate shock wave dynamic pressure.
  • This research provides a valuable tool for assessing ammunition system damage.
  • The findings contribute to improved shock wave dynamic pressure measurement techniques.