Local temperature control method of linear acceleration simulating turntable
A technology for simulating turntable and linear acceleration, which is applied in the direction of temperature control using electric methods, can solve the problems of large temperature control space, increased cost of temperature control box, slow temperature rise and fall process, etc., to reduce temperature control space and improve Effect of heating/cooling speed and cost reduction
Active Publication Date: 2012-07-04
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
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Problems solved by technology
For the linear acceleration simulation turntable, if the above-mentioned temperature control method is adopted, the entire turntable is placed in the temperature control box, which will greatly increase the cost of the temperature control box, because the diameter of the steady speed table of the linear acceleration simulation turntable is greater than 1m, and the volume and The mass is relatively large, so placing it in the temperature control box requires a large space for temperature control in the temperature control box, which increases the cost of the temperature control box, and also makes the temperature rise and cool down process slow during temperature control. temperature point, it takes a long time to reach temperature equilibrium
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[0017] see figure 1 , The mechanical platform body of the linear acceleration simulation turntable used in the local temperature control method of the linear acceleration simulation turntable of the present invention is composed of a stable speed table 1 and a follower table 2. The working surface of the speed-stabilizing table 1 is parallel to the ground, and the rotating shaft 3 of the speed-stabilizing table is perpendicular to the ground. There can be two or more follow-up tables on the table of the speed-stabilizing table, and the following tables are symmetrically installed on the circular table of the speed-stabilizing table. .
[0018] see figure 2 , the local temperature control device used in the linear acceleration simulation turntable local temperature control method of the present invention is a hollow cuboid structure, or a hollow cylinder structure, consisting of heat shields (4a, 4b), shells (6a, 6b), heat preservation Layer (7a, 7b), inner wall 8, semicondu...
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The invention discloses a local temperature control method of a linear acceleration simulating turntable. The linear acceleration simulating turntable comprises a stable-speed platform and a following platform which is arranged on the stable-speed platform, wherein a local temperature control device is connected to the stable-speed platform, and the following platform and an accelerometer which is fixed on the following platform are sealed in the inner space of the local temperature control device. According to the local temperature control method, the following platform and the environmental temperature of the accelerometer which is fixed on the following platform are controlled, and the whole stable-speed platform is not needed to be arranged in a stability control device; and the temperature control space is reduced by the local temperature control method, so that the cost of a temperature control box is reduced, the temperature rising / dropping speeds of the temperature control box are increased, and simultaneously the time for reaching a set temperature point is reduced.
Description
technical field [0001] The invention relates to a calibration method of an accelerometer, in particular to a local temperature control method of a linear acceleration simulation turntable. Background technique [0002] With the development of national defense and industry, accelerometers have been widely used in fields such as aviation, aerospace, automobiles and ships. In the development, production and use of the accelerometer, it is necessary to calibrate the dynamic performance of the accelerometer. The traditional calibration method uses a linear vibration table as a standard device for calibration, but it is limited to the dynamic calibration of linear accelerometers with small g values. [0003] The linear acceleration simulation turntable can simulate standard dynamic acceleration, such as sinusoidal acceleration, and the amplitude of the acceleration is determined by the angular rate and working radius of the stable speed table of the linear acceleration simulation...
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IPC IPC(8): G05D23/19
Inventor 黄钦文冯敬东
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST