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Magnetic liquid countdown apparatus

A magnetic liquid and cavity technology, which is applied in the field of countdown activities, can solve the problems that cannot meet the innovative needs of the countdown link, and the countdown device lacks novelty and other problems

Inactive Publication Date: 2016-09-07
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: the existing countdown device lacks novelty and cannot meet the innovative needs of various activities for the countdown link

Method used

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Examples

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Embodiment Construction

[0021] to attach figure 1 to attach Figure 5 The present invention will be further described for the specific embodiment:

[0022] A magnetic liquid countdown device, comprising: an electromagnet cavity 1, a transparent cavity 2, deionized water 3, a magnetic liquid 4, an electromagnet 5, and a controller 6.

[0023] Connections between the parts of the device:

[0024] First inject the magnetic liquid 4 into the bottom of the transparent cavity 2, and then add deionized water 3, the density of the magnetic liquid 4 is greater than that of the deionized water 3, and the two are incompatible, so the magnetic liquid 4 is located at the bottom of the transparent cavity 2 , the deionized water 3 is located on the upper part of the transparent chamber 2; then the electromagnet 5 is spliced ​​into the shape of the number "8", fixed on the front panel of the electromagnet chamber 1, and then the electromagnet 5 is connected with the controller 6, Each electromagnet can work alone...

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PUM

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Abstract

A magnetic liquid countdown apparatus is applicable to various occasions of countdown activities, and comprises an electromagnetic cavity (1), a transparent cavity (2), deionized water (3), magnetic liquid (4), an electromagnet (5) and a controller (6), wherein the controller (6) controls power on / off of the electromagnet (5). When the electromagnet (5) is powered on, the magnetic liquid (4) moves upward to the powered-on electromagnet (5) under the magnetic field gradient effect and stably attaches to the electromagnet (5), and the electromagnet (5) under power-off state may not attract the magnetic liquid (4). When the electromagnet (5) is powered off, the magnetic liquid (4) loses magnetism due to soft-magnetic characteristic and returns to the lower portion of the transparent cavity (2). The controller (6) controls the electromagnet (5) to change power-on / off state every second to realize the countdown function.

Description

technical field [0001] The invention belongs to the field of timers and is suitable for countdown activities on various occasions. Background technique [0002] At present, various exhibitions, opening ceremonies, and celebrations are increasing day by day. Traditional countdown devices mainly include electronic clocks, mechanical clocks, etc. These methods are easy to operate and can provide reliable countdown services, but lack of innovation and cannot meet the needs of various activities. The innovative needs of the countdown link, so it is necessary to rely on new materials and new technologies to show a more creative countdown form. Contents of the invention [0003] The technical problem to be solved by the present invention: the existing countdown device lacks novelty and cannot meet the innovative needs of various activities for the countdown link. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A magn...

Claims

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Application Information

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IPC IPC(8): G04G9/08
CPCG04G9/08
Inventor 李德才谢君
Owner BEIJING JIAOTONG UNIV
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