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Torsional high-accuracy micro-thrust measuring system

A measurement system and high-precision technology are applied to the high-precision micro-thrust measurement system for the experimental research of micro-thrusters for aerospace devices. It can solve the problems such as difficulty in accurate measurement of thrust of micro-thrusters, influence on measurement accuracy, and influence on accuracy, and achieve good application prospects, high precision, and simple structure.

Inactive Publication Date: 2011-08-31
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to accurately measure the thrust of micro-thrusters with general measuring devices
On the one hand, the noise signal of the instrument will affect the accuracy; at the same time, the instantaneous force transmitted to the stand when the micro-thruster pulse works will also affect the measurement accuracy

Method used

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  • Torsional high-accuracy micro-thrust measuring system
  • Torsional high-accuracy micro-thrust measuring system
  • Torsional high-accuracy micro-thrust measuring system

Examples

Experimental program
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Effect test

Embodiment

[0022] see figure 1 As shown, the torsion-type high-precision micro-thrust measurement system of the present invention mainly includes: a support frame 1, a connecting line 3, a thrust lever 5, a flexible hinge 6, a rigid shaft 7, a fin structure 9 and a linear displacement sensor 11. The crossbar of the support frame 1 is provided with a position regulator 12, the bottom end of the rigid shaft 7 is connected with a paraffin curing cup 8, and the fin structure 9 is arranged in the paraffin curing cup 8, and is symmetrical with the rigid shaft 7 as the central axis. Located on the lower part of the rigid shaft 7, a micro propeller 10 is provided on the long arm end of the thrust lever 5, and a linear displacement sensor 11 matched with the micro propeller 10, and a counterweight cup 2 is provided on the short arm end of the thrust lever 5; The thrust lever 5 is connected with the top end of the rigid shaft 7 to maintain a horizontal state through a flexible hinge 6 and installe...

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Abstract

The invention discloses a torsional high-accuracy micro-thrust measuring system. A transverse lever of a support frame is provided with a position adjuster; the bottom end of a rigid shaft is connected with a paraffin solidified cup; a fin structure is arranged in the paraffin solidified cup and is centrosymmetrically arranged on the lower part of the rigid shaft by taking the rigid shaft as a central shaft; the long arm end of a thrust lever is provided with a micro-thruster and a linear displacement sensor matched with the micro-thruster; the short arm end of the thrust lever is provided with a weight balancing cup; the thrust lever is connected with the top end of the rigid shaft in a horizontal state through a flexible hinge; one end of a connecting line is connected to the position adjuster by suspending, and the other end of the connecting line is connected to the axis of the flexible hinge; the position adjuster connected to the upper end of the connecting line can be used for freely adjusting the position of a cotton thread suspending line; and a rotating lever system is suspended on the position adjuster through the upper end of the connecting line. The measuring system has a small structure, small size, high accuracy and a good application prospect, is convenient to use, and can meet the practical measuring requirement of a micro-thrust device.

Description

technical field [0001] The invention relates to a high-precision micro-thrust measurement system for a micro-thrust device, in particular to a high-precision micro-thrust measurement system for experimental research on micro-thrusters of aerospace devices. Background technique [0002] With the development of Micro-Electro-Mechanical Systems (MEMS) technology, micro-satellites have developed rapidly in recent years. Micro-propellers used for attitude adjustment and orbit adjustment of micro-satellites have high performance requirements: they are small in weight and can generate controllable thrust in the order of micronewtons. Its working mode can be divided into continuous working type and pulse working type. It is difficult to accurately measure the thrust of micro-propellers with general measuring devices. On the one hand, the noise signal of the instrument will affect the accuracy; at the same time, the instantaneous force transmitted to the stand when the micro-thrust...

Claims

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Application Information

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IPC IPC(8): G01L5/12
Inventor 岑继文付健徐进良
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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