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Light velocity measuring method based on LC oscillation circuit

An oscillation circuit and light velocity measurement technology, which is applied in the field of new light velocity measurement based on LC oscillation circuit, can solve the problems of improved measurement accuracy, complex light velocity measurement method, and inability to quickly and effectively measure and calculate the light velocity, so as to improve measurement accuracy, The effect of simple method and reduced complexity

Inactive Publication Date: 2017-07-14
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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Problems solved by technology

[0004] However, the above-mentioned methods for measuring the speed of light are relatively complicated, unable to measure and calculate the speed of light quickly and effectively, and the measurement accuracy needs to be improved due to the influence of measurement equipment

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  • Light velocity measuring method based on LC oscillation circuit
  • Light velocity measuring method based on LC oscillation circuit
  • Light velocity measuring method based on LC oscillation circuit

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Embodiment Construction

[0014] The embodiments will be described in detail below in conjunction with the accompanying drawings. Light is a kind of electromagnetic wave, according to Maxwell's equations, the speed of electromagnetic wave can be deduced as ε 0 is the vacuum permittivity mu 0 is the vacuum permeability (μ 0 =4π×10 -7 ), the technical solution of the present invention is to measure ε indirectly 0 mu 0 product, and then according to Calculate the speed of light.

[0015] Experimental circuit such as figure 1 as shown, figure 1 It is an LC oscillating circuit, which includes a function signal generator, an inductor L, a capacitor C and an oscilloscope, and its oscillation period Among them, N is the number of turns of the inductor in the LC oscillator circuit, A is the cross-sectional area of ​​the inductor in the LC oscillator circuit, l is the length of the inductor in the LC oscillator circuit, ε 0 is the vacuum permittivity, μ 0 is the vacuum permeability, R 1 is the i...

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Abstract

The invention belongs to the technical field of physical constant measurement, and particularly relates to a novel light velocity measuring method based on an LC oscillation circuit. The method comprises the following steps: acquiring LC oscillation period T, inductance L, and capacitance C; linearly fitting the square value of the oscillation period (T<2>) and the inductance parameter (N<2> / 1) according to the sampling values of the oscillation period and the inductance parameter to get the linear slope k; and calculating the value of epsilon0*Mu0, and calculating the velocity of light c. By measuring the velocity of light based on an LC oscillation circuit, the complexity of light velocity measurement is reduced, the accuracy of measurement is increased, and the error rate is reduced.

Description

technical field [0001] The invention belongs to the technical field of physical constant measurement, in particular to a novel light velocity measurement method based on an LC oscillator circuit. Background technique [0002] The determination of the speed of light is of great significance in the history of the development of optics. It not only promotes the anti-station of optical experiments, but also breaks the traditional concept of infinite speed of light; Said debate provides a basis for judgment, and ultimately promotes the development of Einstein's theory of relativity. [0003] The history of the measurement of the speed of light can be traced back to 1629, when Isaac Beeckman (beeckman) proposed an experiment in which a person would follow a flashing light and reflect it across a mirror for about a mile. Galileo believed that the speed of light was limited. In 1638, he asked two people to carry lanterns to climb a mountain about one kilometer apart. The first grou...

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Application Information

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IPC IPC(8): G01J7/00
CPCG01J7/00
Inventor 宗宝春聂传辉肖清兰梁磊谭毛红
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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