Micro-force balance calibration device
A technology for calibrating devices and balances, used in measurement devices, aerodynamic tests, instruments, etc., can solve the problems of lack of targeted measurement components, inevitable errors, and long time, achieving good shock resistance and reducing natural frequencies. , Good anti-interference performance
Active Publication Date: 2021-04-30
INST OF MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology
[0003] Although the micro-force balance can achieve the purpose of measurement, it needs to be initially calibrated in advance to reduce measurement errors; manual calibration is not only time-consuming, but also has inevitable errors; calibration with other machines does not have targeted measurement components. Therefore need a kind of equipment that can carry out calibration according to this microforce balance measurement characteristic
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[0020] The specific structure and implementation process of this solution will be described in detail below through specific embodiments and accompanying drawings.
[0021] Such as figure 1 As shown, in one embodiment of the present invention, a microforce balance calibration device is disclosed, including: an optical platform 1 , a vertical translation platform 4 , a vertical rotation mechanism 6 , a horizontal rotation mechanism 8 , a horizontal translation platform 9 and a measurement assembly 10 .
[0022] The optical table 1 is used to provide an installation base with a standard horizontal plane, and the upper surface can be kept absolutely horizontal through optical adjustment. In order to facilitate the fixing of various components, a plurality of fixing holes are provided on the upper surface.
[0023] The vertical translation stage 4 is installed on the optical table, which can realize linear reciprocating movement. The vertical translation stage 4 adopts the install...
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The invention provides a micro-force balance calibration device. The micro-force balance calibration device comprises an optical platform; a vertical translation stage used for realizing reciprocating motion in the direction vertical to the optical platform; a vertical rotating mechanism comprising a vertical driving seat and a vertical rotating disc, wherein the vertical rotating disc is driven by the vertical driving seat to rotate forwards and backwards with the circle center as the center; a horizontal rotating mechanism comprising a horizontal driving seat and a horizontal rotating disc, wherein the horizontal rotating disc is driven by the horizontal driving seat to rotate forwards and backwards with the circle center as the center; a horizontal translation platform used for realizing reciprocating motion in the horizontal direction; and a measurement assembly comprising a sensor and a comparison module, wherein the comparison module calibrates the micro-force balance according to measurement errors between the micro-force balance and the sensor in different directions. The device has the multi-axis motion characteristic, can measure three-axis force and three-axis moment respectively, and has the advantage of measuring mN-level force and moment by adopting the combination mode of the multi-axis precision transmission rod and the ultra-precision sensor.
Description
technical field [0001] The invention relates to the field of scale calibration, in particular to a calibration device for a micro-force balance used to measure the stress of a model in a wind tunnel. Background technique [0002] In order to measure the small force and moment that the aircraft is subjected to in the wind tunnel, it is necessary to use a micro-force balance for measurement. In order to achieve the measurement purpose, a micro-force balance is specially developed. The micro-force balance includes a variable-section special-shaped beam and a fixed base. The aerodynamic test model is installed at the front end of the horizontal section of the special-shaped beam, and the model is rigidly connected to the end of the special-shaped beam; the aerodynamic force and aerodynamic moment borne by the model will be transmitted and acted on the special-shaped beam, and the aerodynamic resistance of the model can be measured by the special-shaped beam , lift force, yaw for...
Claims
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IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 胡灯亮吴臣武黄河激郭军孟显曹进文
Owner INST OF MECHANICS - CHINESE ACAD OF SCI