A Micro Thrust Measuring Device with Damping System

Abstract

The invention discloses a micro thrust measurement device with an adjustable and high-magnetism gathering damper, which comprises a target system, a displacement sensor system, a target mounting block and a damping system, wherein in the target system, connection and positioning between an elastic beam and the target mounting block is realized through vertical angle aluminum, the verticality of the elastic beam is ensured, and the target is arranged at the bottom end of the elastic beam; in the displacement sensor system, a sensor mounting rod is vertically arranged, the top end is fixed with the bottom surface of the target mounting block, and the bottom end of the sensor mounting rod is provided with the displacement sensor via a sensor mounting plate; in the magnetic damping system, a magnetic stripe is formed by stripe magnets and soft iron blocks, the magnetism gathering effect is good, and the magnetic stripe is arranged on a base with an adjustable height to enable the damping force of the damper to be adjustable conveniently. The micro thrust measurement device with the damping system has the advantages that the thrust frame movable frame can be ensured to be quickly stabilized via the damper, the experiment time can be reduced, the experiment errors can be reduced, and the normal operation by the thruster is not disturbed.

Description

technical field [0001] The invention belongs to the technical field of space micro-thrust thrusters, and specifically relates to a micro-thrust measurement device with a damping system, which is a part of the micro-thrust measurement system. Background technique [0002] With the development of electric propulsion technology, more and more electric thrusters have been designed, but the thrust of many electric thrusters is in the mN level, and it is difficult to accurately measure such a small thrust by conventional thrust measurement methods. The thrust is a very important parameter of the thruster. If the thrust cannot be determined, some important performance parameters of the thruster, such as specific impulse, will also be uncertain, which will bring great trouble to the practical application of the thruster. [0003] In order to accurately measure the thrust of the electric thruster, a micro-thrust measurement system has been designed. The micro-thrust measurement syst...

AI Technical Summary

Problems solved by technology

If you measure directly by taking the average value, it will cause obvious thrust measurement error; if you wait for the thrust frame to stabilize before collecting data, the thrust frame will have significant temperature drift due to the long-term high temperature environment, which will also cause obvious systematic error

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