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Design of an onboard computer for small experimental rockets with an integrated hardware-in-the-loop validation framework.

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A versatile low-cost data acquisition system for small rocket engine test bench.

Nathan Andreani Netzel1, Daniel Strufaldi Batista1, Francisco Granziera1

  • 1State University of Londrina, Department of Electrical Engineering, Rod. Celso Garcia Cid- PR-445, 86057-970, Londrina, PR, Brazil.

Hardwarex
|October 1, 2025
PubMed
Summary
This summary is machine-generated.

A new, affordable data acquisition system was developed for small rocket engine testing. This system accurately measures thrust and pressure, enhancing safety and enabling effective student research.

Keywords:
Data acquisition system (DAQ)Load cellPressure sensingRocket engineStatic firing testSystem calibration

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Area of Science:

  • Aerospace Engineering
  • Educational Technology
  • Instrumentation

Background:

  • Small sounding rockets are crucial for atmospheric data collection and provide hands-on learning experiences in university research.
  • Engine testing and validation are critical for the safety and reliability of sounding rocket experiments, requiring dedicated test benches.

Purpose of the Study:

  • To design and implement a versatile, low-cost data acquisition (DAQ) system for small rocket engine test benches.
  • To provide an affordable yet functional alternative to commercial DAQ systems for educational and research purposes.

Main Methods:

  • Developed a modular DAQ system using cost-effective hardware and software.
  • Integrated load cell sensors and pressure transducers to measure thrust and pressure.
  • Prioritized a design allowing for future expansion and adaptation to various engine configurations.

Main Results:

  • The implemented DAQ system successfully measured thrust and pressure with accuracy and reliability.
  • Experimental testing showed noise levels comparable to commercial DAQ systems.
  • The system demonstrated a balance between affordability and functionality.

Conclusions:

  • The developed low-cost DAQ system is suitable for small rocket engine testing in academic settings.
  • This system enhances experimental safety and enables effective data acquisition for students and researchers.
  • The modular design supports future adaptability and integration into broader research projects.