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Electrospray on-orbit detection method of colloid electric propulsion system and application thereof

A detection method and electrospray technology, which are applied in the direction of material analysis, measuring device, and instrument by electromagnetic means, to achieve the effects of strong practical prospects, increased volume, and simple system structure

Active Publication Date: 2020-11-20
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an electrospray on-orbit detection method of a colloid electric propulsion system and its application to solve the technical problem that the existing electrospray on-orbit detection method of a colloid electric propulsion system is difficult to timely diagnose system performance and state

Method used

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  • Electrospray on-orbit detection method of colloid electric propulsion system and application thereof
  • Electrospray on-orbit detection method of colloid electric propulsion system and application thereof
  • Electrospray on-orbit detection method of colloid electric propulsion system and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] An electrospray on-orbit detection method of a colloidal electric propulsion system, such as figure 1 shown, including:

[0041] When the electrospray launched by the colloidal electric propulsion system flies in the direction of its launch, an external force is applied to the electrospray to deflect the flight direction of part of the electrospray;

[0042] A good conductor electrode is provided in the deflected flight direction, and when part of the electrospray flies to hit the good conductor electrode, the current signal generated by the impact is collected until the signal disappears;

[0043] The physical characteristics of the electrospray are obtained by processing the current signal, and the on-orbit detection of the electrospray is completed.

[0044] Among them, the collected current signal can be analyzed and processed by time-of-flight mass spectrometry to obtain the physical characteristics of the electrospray. In addition, the magnitude of the external ...

Embodiment 2

[0067] An electrospray on-orbit detection device for a colloidal electric propulsion system includes: a colloidal electric propulsion system to be tested, a deflection assembly, a good conductor electrode, a signal acquisition unit, and a signal processing unit. in,

[0068] The colloidal electric propulsion system to be tested emits electrospray in orbit; the deflection component is used to apply external force to the electrospray to deflect the flight direction of part of the electrospray; the good conductor electrode is set in the deflected flight direction for contact with part of the electrospray A collision occurs to generate a current signal; the signal acquisition unit is used to collect the current signal until the current signal disappears, and the signal processing unit is used to process the current signal to obtain the physical characteristics of the electrospray to complete the on-orbit detection of the electrospray.

[0069] Among them, the collected current sig...

example 1

[0077] Example 1: Implementation steps for detecting when the system is in continuous jetting mode of operation.

[0078] (1) At the initial moment, the deflection electrode and the Faraday cage are at zero potential, and maintain an equipotential state with the propulsion system shell, and the electrospray flies in the original direction at this time;

[0079] (2) The system control unit receives the detection instruction. When the deflection component is the deflection electrode, the control power supply system applies a pulse high voltage to the deflection electrode, and selects the appropriate pulse width according to the actual situation to deflect the electric field formed between the electrode plates; or when the deflection electrode When the component is an electromagnetic coil, the control power supply system supplies power to the electromagnetic coil to form a magnetic field. Finally, the electrospray flight direction between the plates or in the coil is deflected, t...

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Abstract

The invention belongs to the field of colloid electric propulsion system application, and particularly relates to an electrospray on-orbit detection method of a colloid electric propulsion system andapplication thereof. The method comprises the steps of applying an external force to electrospray when the electrospray emitted by the colloid electric propulsion system on orbit flies according to the emission direction of the electrospray, and enabling the flight direction of part of the electrospray to deflect, arranging a good conductor electrode in the deflected flight direction, and when part of the electrospray flies to impact the good conductor electrode, collecting a current signal generated by impact until the signal disappears, and processing the current signals to obtain electrospray physical characteristics, and completing electrospray on-orbit detection. Flight electrospray deflection sampling is realized based on an external force, and electrospray physical characteristic detection is realized based on a current signal so as to comprehensively analyze the performance of the electric propulsion system. During electrospray sampling, only a very small part of electrospray is extracted for inspection, the flight process of most electrospray in the normal emission direction is not affected, and the continuous thrust output capacity of the propulsion system can be guaranteed.

Description

technical field [0001] The invention belongs to the application field of a colloidal electric propulsion system, and more particularly relates to an electrospray on-orbit detection method of a colloidal electric propulsion system and its application. Background technique [0002] Colloid electric propulsion technology is a new type of space electric propulsion technology, which has the characteristics of low thrust limit, large adjustable range, high adjustment accuracy, low noise and relatively simple system structure. The working medium of the colloidal electric propulsion is the molten ionic liquid at room temperature, which is transported to the front end of the launch structure through the flow control system. Under the action of high voltage, the ionic liquid passes through the physical process of cone jet-jet atomization-electrospray electrostatic acceleration-jet Launched at a higher velocity and produce thrust in the opposite direction. At present, there are two ma...

Claims

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Application Information

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IPC IPC(8): G01N27/62
CPCG01N27/62
Inventor 宋培义匡双阳涂良成索晓晨黄潇博
Owner HUAZHONG UNIV OF SCI & TECH
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