Review of micro propulsion technology for space gravitational waves detection

Liu, Hui; Niu, Xiang; Zhang, Ming; Wang, Shangsheng; Cui, Kai; Yu, Daren

doi:10.1016/j.actaastro.2022.01.043

Cited by 31 publications

(11 citation statements)

References 30 publications

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“…Analysis of Eq. (5) shows that if the increase rate with displacement is slow, as in Fig. 8, part A and D curves, it is possible to make the electromagnetic force in this region insensitive to displacement, but only proportional to the driving voltage or current, so that it is balanced with the spring force acting on the spool, and the corresponding displacement can be obtained by controlling the voltage or current.…”

Section: Basic Principle Of Large Magnetic Leakage Proportional Valvementioning

confidence: 99%

“…For example, MOOG developed a solenoid proportional valve for the deep space exploration satellite DS-1 xenon proportional flow supply system to accurate regulate the pressure, flow rate [1][2][3]. In recent years, some microsatellite propulsion system, gravitational wave and gravity field detection scientific research mission traction of a new generation of storage and supply system also put forward an urgent demand for higher precision and high reliability proportional solenoid valve technology [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Structure Design for Frictionless Proportional Solenoid Valve Based on Large Leaky Magnetic Circuit

Wang¹,

Tan²,

Zhang³

et al. 2022

Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)

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In the spacecraft micro propulsion system, the proportional solenoid valve of milligram flow is a very important component, which is used to achieve the system pressure and flow proportional adjustment. It is required to reach the high precision and high resolution control of thruster thrust. This paper investigated a new design based on leaky magnetic circuit and frictionless structure of armature suspension. The use of magnetic materials in the lower zone B with small slope and good linearity characteristic reduces the sensitivity of the electromagnetic force changing with displacement. Meanwhile, the support with flat spring is used to keep the valve armature suspended, and avoids the interference of friction force and inner pollution of abrasive dust. Thus the frictionless movement of the proportional valve can be realized with improved proportional accuracy and linearity. The results of simulation and experimental verification show that this structure design is feasible with excellent performance, which can significantly improve the precision adjustment ability of electric propulsion system.

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Section: Basic Principle Of Large Magnetic Leakage Proportional Valvementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic Structure Design for Frictionless Proportional Solenoid Valve Based on Large Leaky Magnetic Circuit

Wang¹,

Tan²,

Zhang³

et al. 2022

Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)

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“…According to the moment of momentum theorem, the equation of motion of the torsion pendulum under the action of micro thrust [4] can be expressed as: θ (t) + βθ (t) + Гθ(t) = T(t) (1) Formula (1): J is the rotational inertia of the pendulum, β is the dissipation term (damping force), Г is the torsion stiffness constant of the suspension fiber, and T(t) is all possible torsional torque. When no torque is applied by the torsion pendulum, T(t) = T , (t), and T , (t) is the thermal noise torque of the suspension fiber [5] .…”

Section: Principle Of Torsion Pendulum Measurementmentioning

confidence: 99%

A micro-force measurement torsion pendulum design with dual laser detection

Zhao

Jia

et al. 2023

J. Phys.: Conf. Ser.

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Aiming at the ground test and evaluation of the suspended test bench of the high microgravity scientific experiment cabinet in the Tianhe core module of the space station to obtain its exact thrust resolution, a micro-force measurement torsion device with dual laser detection is designed. The main configuration of the device is the suspension fiber torsion pendulum, and tungsten wire with a length of 400 mm and a diameter of 800 μm is used as the suspension fiber. Under micro thrust, the suspension fiber is twisted, which drives the mirrors at both ends of the scale arm to rotate along the suspension fiber. The displacement detection of the reflector is carried out, and the magnitude of the micro thrust is calculated in combination with the theorem of momentum. Experimental results indicate that the design of the torsion of micro-force measurement provides an effective test method for the ground test of the suspension test bench. The device can be used to measure and evaluate the micro-propulsion force of the air jet port. After replacing the tungsten fiber with a diameter of 1mm, it can also replace the air floating platform to carry out the air jet closed-loop control verification work, which can effectively and accurately complete the ground test and evaluation of the suspension test bench.

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“…• The CGT has a relatively wide dynamic range of thrust in table 1. In addition, other CGTs are used in the similar missions as well summarized in [28] due to its maturity and reliability. But the limit of CGT is that the specific impulse is too low, which may significantly increase the propellant mass on the satellite.…”

Section: Introductionmentioning

confidence: 99%

A minimized electron cyclotron resonance ion thruster for China’s space-borne gravitational wave detection missions

Meng

Zhu

2023

Class. Quantum Grav.

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Space-borne gravitational wave (GW) detection spacecraft works in the state of drag free for which a disturbance reduction system is utilized to offset the non-conservative force. The key actuator of drag-free control loop is a micro-thruster with the performance of a high precision thrust and wide-range operations. Ion thruster, such as electron cyclotron resonance ion thruster (ECRIT), is one of the options because its thrust can be controlled precisely by the method of beam current feedback. However, there is still a barrier for the conventional ECRIT to achieve the low thrust of 1 µN as required in space-borne GWs detection missions due to its radial structure. In this work, a minimized ECR ion thruster (mini-ECRIT) is designed by a new idea that it employs an axial ring-cusped field to exploit the low-pressure adaptability of resonance heating. The mini-ECRIT is tested and results in a dynamic thrust range of 1‒100 µN, a resolution of 0.1 µN, a thrust noise of 0.1 µN/Hz1/2, and a response time of about 10 ms. In addition, the specific impulse of this thruster can reach as high as 510 s at low thrust 5 µN, being higher than that of previous ion thrusters by a factor of about 5, which may significantly increase the lifetime of the system. This minimized ECR ion thruster may support China’s space-borne gravitational wave detection missions such as TianQin.

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Review of micro propulsion technology for space gravitational waves detection

Cited by 31 publications

References 30 publications

Magnetic Structure Design for Frictionless Proportional Solenoid Valve Based on Large Leaky Magnetic Circuit

Magnetic Structure Design for Frictionless Proportional Solenoid Valve Based on Large Leaky Magnetic Circuit

A micro-force measurement torsion pendulum design with dual laser detection

A minimized electron cyclotron resonance ion thruster for China’s space-borne gravitational wave detection missions

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