A Micro Thrust Measuring Device Based on Cam Rotation Angle Measurement

A technology of cam angle and measuring device, which is applied to measuring device, adopts optical device, force/torque/work measuring instrument, etc., can solve the problem of low resolution of angle measurement of angle measuring sensor, and achieve the effect of expanding the measuring range of rotating angle
CN113340499BActive Publication Date: 2022-06-24PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Publication Date
2022-06-24

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Abstract

The present invention is a tiny thrust measuring device based on cam rotation angle measurement. In the device, a rotating beam, an elastic shaft and a mounting seat are combined and connected together. The cam is installed on the rotating beam, and the center of the cam circle is located on the combined central axis of the elastic shaft and the mounting seat. , the damping plate is connected with the cam; the damping oil pool is installed on the bottom plate, and the damping plate is immersed in the damping oil pool; the displacement measuring device adopts a non-contact optical displacement measuring device, which is installed on the bottom plate, and the measuring point is on the side of the cam. The mass block is used for system parameter calibration of the measuring device. The rotation angle of the rotating shaft can be measured by using the combination of the displacement sensor and the cam. This rotation angle measurement method can measure a wide range of rotation angles, which is different from the measurement method that uses linear displacement to approximate the rotation angle.
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Description

technical field

[0001] The invention belongs to the technical field of devices or methods for measuring force, work, mechanical power or torque generated by impact, and relates to a micro thrust measuring device based on cam rotation angle measurement, with the international patent classification number: G01L 5 / 00. Background technique

[0002] Micro-nano satellites have very broad application prospects in both military and civilian areas, and also promote the development of micro thrusters. The thrust performance of the micro thruster is usually in the tens of millinewtons, hundreds of micronewtons, or even tens of micronewtons or a few micronewtons, which places very high requirements on the measurement system. At present, in order to measure the micro thrust, many scholars have been working on the design and experiment of the micro thrust measurement system. At present, the micro-thrust measuring device based on the horizontal torsion pendulum is the most commonly used m...

Claims

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