Device and method for measuring the actual acceleration of a free-falling body in a rotating coordinate system
A technology of free fall and measuring device, which is applied in the direction of acceleration measurement, teaching models, instruments, etc. by using inertial force, and can solve problems such as difficulty in calculating and measuring acceleration, lack of test equipment, and difficulty in measuring acceleration
Active Publication Date: 2022-04-01
ZHEJIANG UNIV
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[0004] Aiming at the problems that the actual acceleration of free-fall motion in the rotating coordinate system is difficult to calculate and measure, and the lack of test equipment and teaching tools in the scientific research process, the present invention proposes a measuring device for the actual acceleration of free-falling objects in the rotating coordinate system and method
It has many advantages such as wide applicability, clear test results, and simple test process, and solves the problem that the actual acceleration of free-fall motion in the rotating coordinate system is difficult to measure
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[0026] like figure 1 It is the measurement device of the actual acceleration of free fall under the rotating coordinate system of the present invention, comprising a centrifuge 1, a centrifuge chamber 2, and an outer case 3 and an image recording device 6 arranged in the centrifuge chamber 2, the outer case 3 is provided with Middle frame 4 and free fall device 5, described free fall device 5 is fixed in the outer box 3 by middle frame 4; The angle between described free fall device 5 and middle frame 4 is adjustable; The height of the center frame 4 and the angle between the bottom of the outer box 3 are adjustable; the centrifuge 1 is used to provide a rotating coordinate system; the free fall device 5 is used to launch small steel balls 12, and the The image recording device 6 is used to record the motion of the small steel ball 12 under the rotating coordinate system;
[0027] Described free-fall device 5 is made up of beam 18 and some free-fall units 11; Described beam 1...
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The invention discloses a device and method for measuring the actual acceleration of a free-falling body under a rotating coordinate system. The test device of the invention mainly includes: a centrifuge, an outer box, a middle frame, a free-falling device, an image recording device, and the like. Relying on the centrifuge, the present invention can monitor the acceleration of free-falling balls at different heights in the rotating coordinate system, collect the motion track of the ball in three-dimensional space through the image recording system, and obtain the complex object by artificially controlling the parameters of the rotating coordinate system. The equation of motion of the ball under force. The invention solves the actual acceleration measurement problem of the free-falling ball in the rotating coordinate system, and has simple operation, accurate test results and outstanding advantages. The experimental device of the invention can carry out the measurement of the acceleration of the free fall motion in the rotating coordinate system indoors, and provide research tools and measuring tools.
Description
technical field [0001] The invention belongs to the research field of free-fall motion under complex stress conditions in a rotating coordinate system, and relates to a measuring device and method for the actual acceleration of a free-falling body in a rotating coordinate system. Background technique [0002] In the research of free fall motion, most of them are basic and simple free fall motion in a single coordinate system, and only a simple calculation formula can be used to obtain its force state and motion trajectory, but in astrophysics research and scientific research work, The coordinate system of object motion is not static, and the simple free-fall motion calculation method cannot meet the needs of scientific research. In a single coordinate system, by determining the initial velocity direction and acceleration of a free-falling body, the trajectory of the object can be calculated by Newton's law; but in the rotating coordinate system, as the object moves, its acce...
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IPC IPC(8): G01P15/03G09B23/10
CPCG01P15/03G09B23/10
Inventor 闫子壮施昌宇汪玉冰郑建靖黄根清陈云敏
Owner ZHEJIANG UNIV