Design and Simulation for the Sensor of the Space Based Langmuir Probe

Yibing, GUAN; WANG, Shijin; Liu, Chao

doi:10.11728/cjss2012.05.750

Cited by 4 publications

(1 citation statement)

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“…The upper hemisphere is the collector, and the lower hemisphere is the protector: both are loaded with the same sweep voltage. The lower hemisphere is designed to eliminate the terminal effect of the traditional spherical structure, so that the upper hemisphere has an ideal spherical model [20]. The spherical sensor is built with titanium, and coated with titanium nitride (TiN).…”

Section: Langmuir Probementioning

confidence: 99%

The Plasma In Situ Detection on China’s Space Station Wentian Module: Instrument Description and First Results

Liu,

Zhang,

Zhang

et al. 2023

Atmosphere

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The plasma in situ detector is a multi-sensor package designed to in situ measure the bulk parameters of the local ionospheric plasma. The plasma in situ detector is comprised of three sensors: Langmuir probe (LP), retarding potential analyzer (RPA) and ion drift meter (IDM). LP measures electron density and temperature. RPA measures ion density, temperature and ion horizontal velocity. IDM measures the transverse horizontal component of the ram velocity. The plasma in situ detector has been installed outside the wentian module cabin, and the boom has been successfully deployed which extends the spherical sensor of LP beyond the sheath of the cabin. RPA and IDM were installed at the front of the experiment package, with the horizontal axis direction along the forward flight direction of the space station. This paper discusses the general performance characteristics of the in situ detector, the functional performance of each sensor, and initial results of some classical ionospheric features being observed.

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Section: Langmuir Probementioning

confidence: 99%

The Plasma In Situ Detection on China’s Space Station Wentian Module: Instrument Description and First Results

Liu,

Zhang,

Zhang

et al. 2023

Atmosphere

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The technology of space plasma in-situ measurement on the China Seismo-Electromagnetic Satellite

Liu

Guan

Zheng

et al. 2018

Sci. China Technol. Sci.

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The Data Comparison of Electron Density Between CSES and DEMETER Satellite, Swarm Constellation and IRI Model

Liu

Guan

Zhang

et al. 2021

Earth and Space Science

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The China Seismo‐Electromagnetic Satellite (CSES), which is also called ZhangHeng‐1 (ZH‐1), was successfully launched on February 2, 2018. Evaluating the quality of observation data is imperative for the satellite mission and users. Through the comparative analysis of electron density between CSES and DEMETER satellite, Swarm constellation and international reference ionosphere (IRI) model from May 8, 2018 to December 31, 2019, it was found that the patterns of electron density for CSES are similar with those of other observations and model outputs, such as the maxima and minima nearly locating in the same place, having the ionospheric phenomena of wave number 3/4, electron density enhancements at mid‐latitude, and Weddell Sea Anomaly (WSA). The correlation coefficients are higher in the Southern Hemisphere, especially in the region of WSA. The correlation between CSES and IRI model is also better around the equatorial ionization anomaly crests during the daytime, while the correlation coefficients are low around the magnetic equator for the Ne single peak detected by CSES. Comparing the observation data in orbit during the same time, the correlation coefficients between CSES and Swarm constellation all exceed 0.75, the curves of nearby orbits exhibiting the consistent peaks or troughs around the roughly same latitudes. Nevertheless, there are systematic biases in the values between the electron density data of CSES and other observations/models, 1–2 times and over two times lower than IRI model during the nighttime and daytime, respectively. The electron density values of Swarm constellation are 3–6 times greater than those of CSES according to the data statistics of nearby orbits. We considered that both hardware design and data processing may potentially have effects on the Ne systematic biases between the CSES and other observations. Through the comparative analysis, it is concluded that the electron density observed by CSES can exhibit the ionospheric characteristics at the altitude of 507 km, and the data can be applied to the ionospheric phenomena study.

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Design and Simulation for the Sensor of the Space Based Langmuir Probe

Cited by 4 publications

References 0 publications

The Plasma In Situ Detection on China’s Space Station Wentian Module: Instrument Description and First Results

The Plasma In Situ Detection on China’s Space Station Wentian Module: Instrument Description and First Results

The technology of space plasma in-situ measurement on the China Seismo-Electromagnetic Satellite

The Data Comparison of Electron Density Between CSES and DEMETER Satellite, Swarm Constellation and IRI Model

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