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Tester for air intermolecular acting force

An intermolecular force and experimental technology, applied in the field of experimental equipment, can solve problems such as inconvenient understanding for students, inexplicable explanations, and difficulties in the teaching process, and achieve the effects of grouping experiments, processing and production, and simple structure

Active Publication Date: 2014-07-09
江苏苏威尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The force between molecules is the key content in teaching. The force between gas molecules is not easy to measure with conventional instruments, and students cannot feel the pressure or the size of the pressure after a certain mass of gas is compressed, which cannot be visualized during the teaching process. It is inconvenient for students to understand, which brings great difficulties to the teaching process

Method used

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  • Tester for air intermolecular acting force
  • Tester for air intermolecular acting force
  • Tester for air intermolecular acting force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides an experimental device for the force between air molecules, and its structure diagram is as figure 1 As shown, it includes a cylindrical barrel 1, a compression device 2, a balloon 7, a syringe and a pressure sensor.

[0023] The cylindrical tube 1 is a plexiglass tube with a wall thickness of 5 mm. The bottom of the cylindrical tube 1 is provided with two reinforcement plates 6, and a storage plate 11 is fixedly provided on the two reinforcement plates 6. The balloon 7 is placed on the holding plate 11, and its air inlet is connected to one end of an air nozzle 8, and the connection is fastened by an O-shaped sealing ring; the other end of the air nozzle 8 is connected to an inflatable tube 9, the inflatable tube 9 It is a hose, and the other end of the inflation tube 9 is connected to the connecting tube 10. When the experimental device is in the inflated state, the connecting tube 10 is connected to a 50ml syringe to inflate the balloon 7; when ...

Embodiment 2

[0034] This embodiment provides an experimental device for the force between air molecules, and its structure diagram is as figure 2 As shown, the components and the main connection relationship are the same as those of the first embodiment. The difference is that the diameter of the holding plate 11 is smaller than the diameter of the bottom surface of the cylindrical tube 1, and there is a gap between it and the inner wall of the cylindrical tube 1. The gap between the inner walls of the cylinder 1 is connected with the gas nozzle (8).

[0035] The experimental method is the same as that of Example 1, and the experimental data obtained is the same as that of Example 1.

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Abstract

The invention discloses an experimental device for the force between air molecules, comprising a cylinder, a compression device, a balloon, a syringe and a pressure sensor; a storage board is arranged at the middle and lower part of the cylinder, and the balloon is placed on the storage board The air inlet is connected to one end of an air nozzle, and the other end of the air nozzle is connected to an inflation tube; the compression device includes a pressure rod, a handle at the top of the pressure rod and a lower pressure plate at the bottom of the pressure rod. The lower pressing plate is arranged in the cylindrical barrel, and its outer circumference is in contact with the inner wall of the cylindrical barrel. By pulling the handle up and down, the pressing bar drives the lower pressing plate to slide up and down in the cylindrical barrel. The invention adopts the method of balloon extrusion to test the force between molecules without the interference of friction force, improves the measurement accuracy, and is convenient for students to conduct experiments in groups.

Description

technical field [0001] The invention relates to an experimental device, more specifically, an experimental device for the force between air molecules. Background technique [0002] The force between molecules is the key content in teaching. The force between gas molecules is not easy to measure with conventional instruments, and students cannot feel the pressure or the size of the pressure after a certain mass of gas is compressed, which cannot be visualized during the teaching process. The explanation is not convenient for students to understand, which brings great difficulties to the teaching process. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an experimental device for the force between air molecules that is convenient for teachers to demonstrate and for students to understand. [0004] In order to solve the above technical problems, the present invention pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/12
Inventor 王新武王知非
Owner 江苏苏威尔科技有限公司