The invention relates to a space submicron Newton-level multi-mode micro-electro-mechanical thruster and a test platform thereof, the thruster comprises one or more nozzle units, and each nozzle unit comprises a nozzle body, a piezoelectric valve, a flow meter and a heater; the heater has a switch-on working state and a switch-off working state, a gas flow channel is arranged in the nozzle body, the piezoelectric valve, the flowmeter and the heater are arranged on the gas flow channel, one end of the gas flow channel is connected with a gas source, and the other end of the gas flow channel is communicated with the outside. Compared with the prior art, the device has the advantages that high-pressure gas supplies a working medium to the space submicron Newton-level multi-mode micro-electro-mechanical thruster in the vacuum box through pressure reduction, the thruster sprays gas, thrust is measured through the optical lever measuring system, the structure is simple, and thrust calculation is convenient; the thruster comprises one or more nozzle units, and thrust can be adjusted according to requirements; the piezoelectric valve and the flow meter are used for controlling and monitoring the flow through the electric control unit, so that the control is accurate; and the bending deformation quantity is accurately measured by using an optical lever principle.
本发明涉及一种空间亚微牛级多模式微机电推力器及其试验平台,推力器包括一个或多个喷嘴单元,喷嘴单元包括喷嘴本体、压电阀、流量计和加热器;加热器具有接通和断开两种工作状态,喷嘴本体内设有气体流道,压电阀、流量计和加热器设在气体流道上,气体流道一端连接气源,另一端与外部连通。与现有技术相比,本发明具有高压气体经过减压向真空箱中的空间亚微牛级多模式微机电推力器供给工质,推力器喷出气体,通过光杠杆测量系统对推力进行测量,结构简洁且推力计算便捷;推力器包括一个或多个喷嘴单元,可以根据需求调节推力;压电阀和流量计通过电控单元进行流量的控制与监测,控制准确;利用光杠杆原理对弯曲形变量进行精准测量等优点。
Space sub-micro-Newton-level multi-mode micro-electro-mechanical thruster and test platform thereof
一种空间亚微牛级多模式微机电推力器及其试验平台
2024-10-22
Patent
Electronic Resource
Chinese
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