Vertical pendulum type micro-small thrust test board device, calibration method and weak force testing method

A calibration method and a technology of a test bench are applied to measuring devices, force/torque/work measuring instruments, and measurement of balance forces using forces, which can solve problems such as complex structures and low measurement accuracy, to ensure measurement accuracy and simplify Effects of structure and method of operation
CN112504534APending Publication Date: 2021-03-16INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
Publication Date
2021-03-16

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Abstract

The invention relates to the technical field of weak force testing, and concretely relates to a vertical pendulum type micro-small thrust test board device, a calibration method and a weak force testing method. The vertical pendulum type micro-small thrust test board device comprises a vacuum container, a test board frame, a vertical pendulum body, a feedback voice coil motor, a calibration voicecoil motor and a micro-displacement measuring instrument, and a propeller is arranged at the lower end of the vertical pendulum body. By means of the mode, when the vertical pendulum body is in a balanced state, the micro-propelling force and the feedback weak force which are applied to the vertical pendulum body by the propeller and the feedback voice coil motor respectively have a linear relation, and the structure and the operation method are simplified under the condition that the testing precision is guaranteed; and when the vertical pendulum body is in the balanced state, the calibrationvoice coil motor and the feedback voice coil motor respectively apply a linear relationship to the directions of the standard weak force and the feedback weak force applied to the vertical pendulum body, and the calibration voice coil motor can calibrate the feedback weak force of the feedback voice coil motor, so that the measurement precision of the device is ensured.
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Description

【Technical field】

[0001] The invention relates to the technical field of weak force testing, in particular to a vertical pendulum micro-thrust test bench device, a calibration method and a weak force testing method. 【Background technique】

[0002] Micro-thrusters with micro-newton resolution and higher precision have important applications in high-precision space experiments. In space missions such as high-precision deep space exploration and space satellite formation flight, the requirements for the accuracy of satellite attitude control and orbit control are getting higher and higher, and the actuators controlled are high-precision space micro-propellers. It is an extremely important part of the mission, and its performance also determines the execution quality and even success of the space mission. In addition, in projects such as the space gravitational wave detection plan, satellite gravity field measurement, space equivalence principle test, and space microgravity vib...

Claims

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