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System for measuring thrust suitable to thrust engine with tiny space

A measurement system and engine technology, which is applied in the direction of engine testing, force/torque/work measuring instrument, machine/structural component testing, etc., can solve problems such as the complexity of the measurement system, and achieve the goal of improving measurement accuracy and reducing elastic coefficient Effect

Inactive Publication Date: 2008-06-04
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] For the measurement of the tiny thrust of the engine, according to the nature of the thrust, its structure includes a target, an elastic element, a balance, a pendulum, and an optical measurement system, etc., but the measurement frame contains inelastic parts, and the measurement accuracy can only be measured through multiple experiments method to obtain, or the measurement system is complex

Method used

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  • System for measuring thrust suitable to thrust engine with tiny space
  • System for measuring thrust suitable to thrust engine with tiny space
  • System for measuring thrust suitable to thrust engine with tiny space

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The present invention is a kind of thrust measurement system applicable to space micro-thrust engine, including propellant storage tank, engine 502, mechanical body, sensor assembly 2 and control drive circuit; The sensor assembly 2 is installed on the side, and the counterweight 6 is installed at the other end; the control drive circuit is installed in the transverse groove of the front support beam 106 and the rear support beam 105; the engine 502 is installed on the connecting piece 501; one end of the propellant pipeline 503 Connected to the engine 502, the other end is connected to the propellant storage tank;

[0033] In the present invention, the mechanical body is composed of a support frame assembly 1, a main shaft assembly 3, a working beam 4, a propulsion assembly 5 and a counterweight 6,

[0034] Please refer to shown in Fig. 2, the cuboid...

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Abstract

A thrust measuring system of thrust engine used in small space comprises storage tank of thrust agent, engine, mechanical body, transducer, driving and controlling circuit. It is featured as setting transducer at external side of one end on working beam and balance weight block on another end; placing said driving and controlling circuit in horizontal trench of front and back support beams; arranging engine on connection piece; connecting one end of thrust agent tube to engine and another end to thrust agent storage tank; forming mechanical body by support frame, master shaft, working beam, thrust component and balance weight.

Description

technical field [0001] The invention relates to a mechanical structure suitable for measuring thrust, more particularly, a thrust measuring mechanism suitable for space micro-thrust engines. Background technique [0002] Space micro-thrust engine technologies such as micro-propulsion and electric propulsion are widely used in many fields such as aerospace. Micro-thrust measurement technology is a key technology in engine ground tests. Only by obtaining the measured thrust can the actual performance parameters of the engine be obtained. (the actual specific impulse of the engine), and carry out further design and development work. [0003] Since the thrust of the micro-thrust engine is very small (mN level or μN level), the connection of the propellant pipeline and the circuit has a great impact on the measurement of the thrust. It is difficult to measure the thrust directly. Generally, in this field, a force less than or equal to 1N is called a small thrust. [0004] For ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00G01L5/12G01M15/00
Inventor 汤海滨刘畅杨勇徐衡张文电曾鹏李新田
Owner BEIHANG UNIV
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