Payload and spacecraft technology for GP-B

Reynolds, Gary; Vassar, R.; Parmley, Richard T.; Read, David A.; Reeve, Whitham D.; Shaul, K.; Clair, D.; Beukel, J. Vanden

doi:10.1016/s0273-1177(99)00986-2

Cited by 4 publications

(1 citation statement)

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“…Second, a CMS must be incorporated to reduce the cumulative net charge on the TM (with an upper limit of

C in LISA) [ 69 ]. Given the extremely low noise tolerances in scientific measurements for space gravitational wave detection missions, non-contact discharge technology using UV discharge based on the photoelectric effect emerges as the optimal choice [ 70 , 71 ]. However, it is important to note that the discharging process realized by CMSs also independently generates random charging noise [ 72 ].…”

Section: The Charge Accumulation Of Inertial Sensorsmentioning

confidence: 99%

High-Precision Inertial Sensor Charge Management Based on Ultraviolet Discharge: A Comprehensive Review

Yu,

Wang,

Liu

et al. 2023

Sensors

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The charge accumulation caused by cosmic rays and solar energetic particles poses a significant challenge as a source of noise for inertial sensors used in space gravitational wave detection. To address this issue, the implementation of charge management systems based on ultraviolet discharge becomes crucial. This paper focuses on elucidating the principles and methods of using ultraviolet discharge for charge management in high-precision inertial sensors. Furthermore, it presents the design and implementation of relevant payloads. Through an analysis of the charge accumulation effect and its impact on noise, key considerations regarding coatings, light sources, and optical paths are explored, and some current and valuable insights into the future development of charge management systems are also summarized. The conclusions drawn from this research also provide guidance for the advancement of higher precision ultraviolet discharge technology and the design of charge management systems.

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“…Second, a CMS must be incorporated to reduce the cumulative net charge on the TM (with an upper limit of

Section: The Charge Accumulation Of Inertial Sensorsmentioning

confidence: 99%

High-Precision Inertial Sensor Charge Management Based on Ultraviolet Discharge: A Comprehensive Review

Yu,

Wang,

Liu

et al. 2023

Sensors

View full text Add to dashboard Cite

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Geodynamic/Earth-System Missions

Kramer¹

2002

Observation of the Earth and Its Environment

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Dynamic Parameter Estimation of Large Space Debris Based on Inertial and Visual Data Fusion

et al. 2021

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Most large space debris has large residual angular momentum, and the de-tumbling and capturing operation can easily cause instability and failure of tracking satellites. Therefore, it is necessary to perform real-time dynamic parameter identification of space debris prior to the imminent de-tumbling and capture operation, thus improving the efficiency and success of active debris removal (ADR) missions. A method for identifying dynamic parameters based on the fusion of visual and inertial data is proposed. To obtain the inertial data, the inertial measurement units (IMU) with light markers were fixed on the debris surface by space harpoon, which has been experimentally proven in space, and the binocular vision was placed at the front of a tracking satellite to obtain coordinates of the light markers. A novel method for denoising inertial data is proposed, which will eliminate the interference from the space environment. Furthermore, based on the denoised data and coordinates of the light markers, the mass-center location is estimated. The normalized angular momentum is calculated using the Euler–Poinsot motion characteristics, and all active debris removal parameters are determined. Simulations with Gaussian noise and experiments in the controlled laboratory have been conducted, the results indicate that this method can provide accurate dynamic parameters for the ADR mission.

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Payload and spacecraft technology for GP-B

Cited by 4 publications

References 0 publications

High-Precision Inertial Sensor Charge Management Based on Ultraviolet Discharge: A Comprehensive Review

High-Precision Inertial Sensor Charge Management Based on Ultraviolet Discharge: A Comprehensive Review

Geodynamic/Earth-System Missions

Dynamic Parameter Estimation of Large Space Debris Based on Inertial and Visual Data Fusion

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