Foucault pendulum presentation device

A technology of a demonstration device and a display stand, which is applied to educational appliances, instruments, teaching models, etc., can solve the problems of unfavorable Foucault pendulum teaching, popular science, single demonstration results, consumption of large and fine sand, etc., and achieves good demonstration effect and simple operation. , the demonstration effect is outstanding

Active Publication Date: 2019-03-22
HEFEI PANSHI AUTOMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of demonstration method usually consumes a lot of fine sand, the operation is cumbersome, and the d

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  • Foucault pendulum presentation device
  • Foucault pendulum presentation device
  • Foucault pendulum presentation device

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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0021] Such as Figure 1~6 As shown, the Foucault pendulum demonstration device includes a truss 10, a pendulum rope 20, a pendulum ball 30 fixed at the lower end of the pendulum rope 20, a display stand is arranged under the pendulum ball 30, and the upper end of the pendulum rope 20 A universal joint 40 is installed between it and the middle of the truss 10, and a lighting auxiliary display system 50 is installed in the middle of the display stand. The pendulum ball 30 includes a metal ball shell 32 and a shot ball 31 arranged inside the metal ball shell 32. The lower end of the pendulum r...

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Abstract

The invention relates to a Foucault pendulum presentation device which comprises a truss, a swing rope and a swing ball fixedly arranged at the lower end of the swing rope. A showing table is arrangedunder the swing ball, a universal joint is installed between the upper end of the swing rope and the middle of the truss, the middle of the showing table is provided with a lamp light aided presentation system. The lamp light aided presentation system comprises a circular-ring-shaped sensing zone and a circular-ring-shaped lamp light zone arranged outside the sensing zone, the projection of the area, where a swing trajectory is located on a table top of the showing table is a projection zone, the sensing zone is located in a central area of the projection zone, and the lamp light zone is arranged outside the projection zone. The sensing zone comprises multiple diffuse reflection sensors distributed in an annular array way, and the lamp light zone comprises multiple lamp strips controlledby the diffuse reflection sensors. The Foucault pendulum presentation device has the advantages of being simple in operation, good in presentation effect and capable of demonstrating rich principles and facilitating visual understanding of audiences.

Description

technical field [0001] The invention relates to a Foucault pendulum demonstration device, which belongs to scientific phenomenon demonstration devices. Background technique [0002] In order to prove that the earth is rotating, French physicist Foucault (1819-1868) conducted a successful swing experiment in 1851, hence the name of Foucault's pendulum. The experiment was carried out under the highest dome of the Pantheon in Paris, France. The pendulum is 67 meters long and the pendulum weighs 28 kilograms. The suspension points are specially designed to minimize friction. This kind of pendulum has large inertia and momentum, so it is basically not affected by the rotation of the earth and swings by itself, and the swing time is very long. In the Foucault pendulum test, people can see that the swing plane rotates slowly clockwise during the swing process, and the swing direction changes constantly. Analyzing this phenomenon, the pendulum is not affected by external force in ...

Claims

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Application Information

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IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 董亚军胡坤孙震汪陈
Owner HEFEI PANSHI AUTOMATION TECH
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