Air track experiment device

A technology of guide rails and air cushions, applied in the field of physical experimental devices, can solve problems such as errors, labor, and deviations.

Inactive Publication Date: 2012-02-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing experimental process is that students hand-copy the readings of the digital millisecond meter. When copying, they need to continuously press the corresponding light-blocking times button on the digital millisecond meter. The submitted experimental reports are all hand-copied. Based on experimental data
[0005] There are three problems in this kind of experimental process. First, it is not easy to understand the students' experimental mastery. As we all know, plagiarism among students is common. If students plagiarize other people's experimental data after the experiment, and use it Submitting th

Method used

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Examples

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Embodiment Construction

[0013] figure 1 It shows the part of the shading sheet in the present invention, and the shading sheet is consistent with the air cushion guide rail device in the prior art.

[0014] The slider with a light-shielding sheet slides on the air-cushion guide rail, representing an object that moves in a straight line. When the slider passes through the photoelectric gate located at a certain position, the light-shielding sheet shields the photoelectric gate. When the first side 1 blocks the light, the timer starts timing, continues timing when the second side 2 passes, and stops timing when the third side 3 blocks the light again. By measuring the width Δx between the first side 1 and the third side 3 of the shading sheet and the shading time Δt, the average speed at which the slider passes through the photogate can be calculated Since Δx is relatively small, and the speed of the slider changes very little within the range of Δx, the above-mentioned average speed can be regarded...

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PUM

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Abstract

The invention relates to a device for performing acquisition, transmission and real-time processing on air track experiment data, which comprises an air track experiment table, a circuit board, a photoelectric door, a bluetooth transmitter module, a display, a computer and a data processor, wherein the circuit board is embedded with a singlechip; the photoelectric door is connected with the singlechip and is used for triggering; and the computer is used for performing acquisition and real-time processing on the experiment data and is configured with a bluetooth receiver module. When an air track experiment is conducted, the device for performing the acquisition, the transmission and the real-time processing on the air track experiment data is characterized in that the singlechip on the circuit board is utilized to perform timing, the singlechip is connected with the photoelectric door; an anti-dazzling screen can be transferred to the singlechip by the photoelectric door through the time signals of the photoelectric door, and then, the signals are transmitted in real time by the singlechip and are displayed on the display connected onto the singlechip; students press a sending button on the circuit board embedded with the singlechip after measuring all required data; a data packet containing the data and student numbering as well as names is sent to the computer through the bluetooth transmitter module; and then, storage and postprocessing are performed on the data after the data packet is received by the computer.

Description

technical field [0001] The invention relates to a physical experiment device, in particular to a system for collecting, transmitting and real-time processing experimental data of an air cushion guide rail, and belongs to the field of physical experiment instruments. Background technique [0002] The air cushion guide rail is a modern mechanical experiment instrument. It uses a small air source to send compressed air into the inner cavity of the guide rail. Thin air cushion. The glider floats on the air cushion layer and is out of contact with the rail surface, so it can make approximately no resistance linear motion on the rail surface, which greatly reduces the error caused by friction in the mechanical experiment and makes the experimental results close to the theoretical value , which can measure various mechanical physical quantities and verify multiple mechanical laws. [0003] The air-cushion guideway can carry out a variety of experiments, including: measuring the r...

Claims

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Application Information

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IPC IPC(8): G09B23/10
Inventor 李松涛任芝杨越王兰谟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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