Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Keqi Qi"'
Autor:
Jia Shen, Shaoxin Wang, Keqi Qi, Mengyang Zhao, Heshan Liu, Ran Yang, Pan Li, Wei Tao, Ziren Luo, Ruihong Gao
Publikováno v:
Photonics, Vol 11, Iss 7, p 638 (2024)
Tilt-to-length (TTL) coupling noise arises from angular misalignments of interfering beams in optical path length (OPL) measurements and significantly impacts the accuracy of interferometry measurement systems. This paper focuses on geometric TTL cou
Externí odkaz:
https://doaj.org/article/7fcf94b72b124c32baa488d0327dac5a
Publikováno v:
Sensors, Vol 24, Iss 8, p 2529 (2024)
Temperature fluctuations affect the performance of high-precision gravitational reference sensors. Due to the limited space and the complex interrelations among sensors, it is not feasible to directly measure the temperatures of sensor heads using te
Externí odkaz:
https://doaj.org/article/65caaa5cf2704eda8811b53b0235fb1a
Autor:
Wei Tao, Xiaoqin Deng, Yuqing Diao, Ruihong Gao, Keqi Qi, Shaoxin Wang, Ziren Luo, Wei Sha, Heshan Liu
Publikováno v:
Sensors, Vol 23, Iss 22, p 9141 (2023)
A kind of full-function two-sided optical bench interferometer (OBI) is designed to meet the practical requirements of the Taiji Program for space gravitational wave detection. The main optical paths are arranged on the A-side for transmission and in
Externí odkaz:
https://doaj.org/article/a04f3b7e4c184b23aea4aaf17ea83f5d
Publikováno v:
Sensors, Vol 23, Iss 19, p 8087 (2023)
In space gravitational wave detection missions, a drag-free system is used to keep the test mass (TM) free-falling in an ultralow-noise environment. Ground verification experiments should be carried out to clarify the shielding and compensating capab
Externí odkaz:
https://doaj.org/article/c3993c3afd1d432c8e32726591af2de8
Autor:
Haoyue Zhang, Peng Xu, Zongqi Ye, Dong Ye, Li-E Qiang, Ziren Luo, Keqi Qi, Shaoxin Wang, Zhiming Cai, Zuolei Wang, Jungang Lei, Yueliang Wu
Publikováno v:
Remote Sensing, Vol 15, Iss 15, p 3817 (2023)
High-precision inertial sensors or accelerometers can provide references for free-falling motion in gravitational fields in space. They serve as the key payloads for gravity recovery missions such as CHAMP, the GRACE-type missions, and the planned Ne
Externí odkaz:
https://doaj.org/article/8523c7b1b1714333a6776c0c5c70ff05
Publikováno v:
IEEE Access, Vol 8, Pp 1021-1030 (2020)
The micro capacitive sensing and electrostatic drive control system (front-end electronics, FEE) is the core component of inertial sensor in space gravitational wave detection. The FEE requires high-precision displacement detection, high-stability el
Externí odkaz:
https://doaj.org/article/bb4abf9b640a49ea9474dc0f0a7c8252
Autor:
Zhi Wang, Tao Yu, Ya Zhao, Ziren Luo, Wei Sha, Chao Fang, Yukun Wang, Shaoxin Wang, Keqi Qi, Yongxian Wang, Xuanwen Xu
Publikováno v:
Photonic Sensors, Vol 10, Iss 3, Pp 265-274 (2019)
Abstract The detection mission of gravitational waves in space is that the accuracy of the long-baseline intersatellite laser interferometry on the million-kilometer order needs to reach the order of $$8 \rm{pm}/\sqrt{\rm{Hz}}$$ 8 p m / H z . Among a
Externí odkaz:
https://doaj.org/article/641c28cc78d840ab946d1034ba309da2
Publikováno v:
Photonic Sensors, Vol 8, Iss 3, Pp 255-262 (2018)
Abstract In this paper, a calibration method is proposed which eliminates the zeroth order effect in lateral shearing interferometry. An analytical expression of the calibration error function is deduced, and the relationship between the phase-restor
Externí odkaz:
https://doaj.org/article/f8c15845769b4998a9e2328f80f6981b
Autor:
Yikun Wang, Lingqiang Meng, Xuesen Xu, Yu Niu, Keqi Qi, Wei Bian, Qiujie Yang, Heshan Liu, Jianjun Jia, Jianyu Wang
Publikováno v:
Applied Sciences, Vol 11, Iss 17, p 7872 (2021)
To guarantee a smooth in-orbit space gravitational wave detection for the Taiji mission, a semi-physical simulation test of inter-satellite laser interference is carried out. The semi-physical simulation test consists of three aspects: the establishm
Externí odkaz:
https://doaj.org/article/c6a0adef36274e17956c956e684ab07c
Publikováno v:
Applied Sciences, Vol 10, Iss 9, p 3090 (2020)
The inertial sensor is the key measurement payload of the technology verification satellite of China’s space gravitational wave detection mission-Taiji Project, which uses capacitive sensors to sense the acceleration disturbance of the test mass un
Externí odkaz:
https://doaj.org/article/541660b7b8fe4eb78e03de8c692bc558