Equal-thickness interference experimental device

Abstract

The invention relates to an acquiring, transmitting and real-time processing device for equal-thickness interference experimental data, which comprises an equal-thickness interference generating device, a microscope machine, an electronic digital-display caliper, a circuit board, a radio-frequency emitting module, a display, a computer and a data-processing program, wherein the circuit board is embedded with a singlechip, the computer is used for collecting and real-time processing the experimental data and configuring a radio-frequency receiving module, and an equal-thickness interference experiment is observed by using a microscope. The device is characterized in that: the device is configured with the electronic digital-display caliper, the radius of a Newton ring is measured by the electronic digital-display caliper, the electronic digital-display caliper is connected with the singlechip, and the data content displayed by the electronic digital-display caliper can be transmitted to and displayed on the display connected with the singlechip in real time by the singlechip; and after all the required data is measured by students, a sending pushbutton on the circuit board embedded with the singlechip is pressed, a data packet containing the data, student serial numbers and names is sent onto the computer through the radio-frequency emitting module, and the data is stored and subsequently processed after the data packet is received by the computer.

Description

technical field [0001] The invention relates to a university physics experiment device, in particular to a system for collecting, transmitting and real-time processing data of an equal-thickness interference experiment, and belongs to the field of university physics experiment instruments. Background technique [0002] The equal thickness interference experiment is one of the basic experiments in college physics experiment teaching. At present, most colleges and universities in China use traditional equal-thickness interferometers. Decades of experimental teaching have proved that there are several major shortcomings in the traditional equal-thickness interferometer: (1) Due to the current number of myopic students, it is very difficult to adjust through microscope observation; , requires repeated actions: observe through a microscope, read the value on the scale, and record the experimental data on the experimental report recording paper. Repeatedly, it is easy to cause vi...

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Problems solved by technology

Decades of experimental teaching have proved that there are several major shortcomings in the traditional equal-thickness interferometer: (1) Due to the current number of myopic students, it is very difficult to adjust through microscope observation; , requires repeated actions: observe through a microscope, read the value on the scale, and record the experimental data on the experimental report recording paper. Repeatedly, it is easy to cause visual fatigue and cause errors in the counting of stripes, and if there is a collision or vibration in the middle Waiting for interference will also cause counting failure

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 to 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 of this is that the teacher cannot 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 more on experience in processing student data, which inevitably occurs during the scoring process. deviation

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