A Calibration Method of Micro Thrust
A calibration method and thrust technology, which are applied in the measurement of elastic deformation force through measuring gauges, etc., can solve problems such as the calibration problem that affects the accurate measurement of micro thrust, and achieve the effect of simple control and use and easy to master.
Inactive Publication Date: 2012-02-01
BEIHANG UNIV
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] The purpose of the present invention is to provide a calibration method for micro-thrust. Aiming at the problems of current domestic micro-North-level thrust measuring devices, mainly the connection of supporting elements and accessories affects the accurate measurement of micro-thrust and the calibration of micro-thrust. As the key elastic sensitive element, the steady-state micro-thrust of the micro-thrust engine can be measured more accurately through the conversion of displacement and the method of electrostatic force calibration. The thrust measurement range is 0-500μN
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0043] Such as figure 2 , 3 As shown, the hardware device applied by the method of the present invention is installed:
[0044] (1), first install the adjustment bracket 26 on the thrust frame frame 25, then install the main beam 16 on the thrust frame frame 25, then install the lateral movement seat 1 on the main beam 16, and then fix the longitudinal movement seat 6 On the lateral moving seat 1 , the electrode seat 2 and the sensor seat 13 are welded on the longitudinal moving seat 6 .
[0045] (2) Assemble the fixed shaft 3, the adjusting screw rod 5, the washer end cover 7, the lock nut 8, the handle 9, and the moving long shaft 15 into one, and then fix it on the sensor seat 13 with the fixing screw 10.
[0046] (3) Assemble the fixed shaft 3 moving shaft 4 adjusting screw rod 5 washer end cover 7 locking nut 8 handle...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A calibration method for micro-thrust, characterized in that: the method specifically includes the following steps: (1) adjust the bracket to adjust the thrust frame frame level, and adjust the positive pole of the calibration electrode parallel to the negative pole of the calibration electrode by adjusting the counterweight and the fixed piece under the spring leaf centering; (2) adjust the distance between the positive pole of the calibration electrode and the negative pole of the calibration electrode, the distance between the displacement sensor and the spring sheet, so that the displacement sensor and the calibration electrode work within the effective range; (3) apply voltage to the calibration electrode for calibration, and obtain Electrostatic force, voltage, and displacement calibration curves; (4) Turn off the power on the calibration electrodes, apply voltage to the thruster to obtain flow, extraction voltage, and displacement curves, and then obtain flow, extraction voltage, and thrust curves through the calibration curves.
Description
Technical field: [0001] The invention relates to a micro-thrust calibration method, which belongs to the technical field of 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 is a key technology in engine ground tests. Only when the measured thrust is obtained 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 gas circuit and the circuit has a great influence on the thrust measurement, and the whole engine must work in a vacuum, so the thrust Direct measurement poses great difficulties. [0004] For the measurement of the tiny thrust of the engine, according to the different ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/04
Inventor 王安良杨博王一白刘宇覃粒子任军学
Owner BEIHANG UNIV