Air track experiment device

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...

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 the experiment report, the experiment teacher can't find out in time, because the student's data recording process is completely independent of the teacher, the result is that the teacher can't have a good understanding of the student's experimental mastery, which leads to the lack of confidence in teaching. There are deviations in quality assessment; second, students spend time and effort in the process of data recording, and the data are separated from each other, which is prone to errors; third, experimental teachers rely on experience to process student data, which inevitably occurs during the scoring process. deviation

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