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Research on High-Precision and Wide-Range Spacecraft Potential Measurement Method Based on Capacitive Voltage
Hong Yin1, Haibo Liu1, Xiaogang Qin1
1Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China.
Sensors (Basel, Switzerland)
|December 17, 2024
Summary
Spacecraft charging in orbit can cause anomalies. This study developed a high-precision, non-contact system to measure spacecraft potential, improving satellite safety and reliability.
Area of Science:
- Space Physics
- Aerospace Engineering
- Electrical Engineering
Background:
- Space plasma environment causes spacecraft charging, leading to anomalies, especially in geosynchronous orbits.
- Unequal high-potential charging significantly impacts spacecraft operation and safety.
Purpose of the Study:
- Investigate a high-precision, wide-range spacecraft potential measurement method.
- Address the need for measuring unequal charge states on spacecraft surfaces.
- Enhance spacecraft safety and reliable operation through accurate potential monitoring.
Main Methods:
- Developed a spacecraft potential measurement method based on capacitive voltage division.
- Analyzed measurement mechanisms and error factors.
- Innovatively developed a fundamental charge zeroing method to resolve output drift.
Main Results:
- Developed a non-contact potential measurement system.
- Achieved a measurement range up to -15,000 V.
- Demonstrated a resolution below 15 V and nonlinear error less than 0.1%.
Conclusions:
- The developed system provides crucial technical support for monitoring spacecraft potential.
- The system enhances spacecraft safety and protection against plasma-induced anomalies.
- Accurate measurement of spacecraft potential is vital for mission success in harsh space environments.
Keywords:
capacitive voltage divisionoutput driftpotential detectorspace chargingspacecraft potentialMore Related Videos
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