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Stress measurement system for underwater electro-explosive platforms.

Yong Lu1, Yongmin Zhang1, Shaojie Zhang1

  • 1State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, Shaanxi, China.

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A new system accurately measures stress from underwater electrical-wire explosions (UEWE) despite electromagnetic interference. This innovation is crucial for optimizing devices driven by UEWE, ensuring reliable performance in demanding environments.

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Area of Science:

  • Materials Science
  • Physics
  • Engineering

Background:

  • Underwater electrical-wire explosion (UEWE) is a novel method for generating strong shock waves at high frequencies.
  • UEWE is increasingly used to drive insensitive energetic materials, necessitating performance optimization.
  • Accurate stress measurement is vital for optimizing UEWE-driven devices, but conventional methods suffer from electromagnetic interference (EMI).

Purpose of the Study:

  • To develop and evaluate a novel system for measuring stress in strong electromagnetic fields.
  • To overcome the limitations of conventional stress measurement techniques in the presence of intense EMI.

Main Methods:

  • A piezoelectric film and conditioning circuit were integrated into a novel stress measurement system.
  • Electromagnetic shielding was employed to mitigate intense EMI from the UEWE process.
  • Simulations and experiments were conducted to validate the system's performance.

Main Results:

  • The developed system effectively measures stress in a strong electromagnetic field environment.
  • The system utilizes shielding to eliminate intense EMI, ensuring measurement accuracy.
  • Output voltage measurement from the conditioning circuit allows for rapid stress determination.

Conclusions:

  • The novel system provides accurate stress measurements at the fluid-solid interface under strong electromagnetic fields.
  • This technology is essential for optimizing the performance of devices utilizing underwater electrical-wire explosions.
  • The system overcomes EMI challenges, enabling reliable stress evaluation in UEWE applications.