Horizontal longitudinal wave standing wave experimental measuring device and method

A measuring device and standing wave technology, applied in the direction of measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problems of inaccurate measurement of standing wave wavelength, unstable nodes, etc., to facilitate observation and measurement, and improve safety Sex, the effect of reducing the mass of the spring

Inactive Publication Date: 2019-07-26
HOHAI UNIV
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  • Abstract
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Problems solved by technology

[0003] The present invention mainly solves the problem of inaccurate measurement of the standing wave wavelength caused by the instability of the nodes existing in the existing standing wave experimental instrument, and provides a low-cost horizontal longitudinal wave standing wave experimental measuring device, which is suitable for demonstration teaching and experimental measurement teaching

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  • Horizontal longitudinal wave standing wave experimental measuring device and method

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Embodiment Construction

[0023] In order to further describe the technical features and effects of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, a horizontal longitudinal wave standing wave experimental measurement device, including base 1, horn 2, slide rod 3, collar 4, thin wire 5, light spring 6, scale 7, audio current source 8, movable support 9 , horizontal slide rail 10, wire 11, wherein, horn 2 is fixed on the left side of base 1, and one end of light spring 6 is fixed on the diaphragm center of horn 2, and the other end of light spring 6 is fixed on movable support 9 On the top, the movable bracket 9 is fixed on the base 1 through the horizontal slide rail 10 and can be adjusted horizontally from left to right. The slide bar 3 is horizontally fixed on the top left side of the base 1. Connect the light spring 6 to the collar 4, the collar 4 hangs the light ...

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Abstract

The invention discloses a horizontal longitudinal wave standing wave experimental measuring device and method. A horn is fixed at one end of a base, one end of a lightweight spring is fixed on a vibrating diaphragm of the horn, the other end of the lightweight spring is fixed on a movable bracket, the movable bracket is fixed on the base through a horizontal sliding rail and can laterally move onthe horizontal sliding rail, a sliding rod is horizontally fixed on the top of the base, multiple lantern rings sleeve the sliding rod, the lightweight spring is connected with the lantern rings through fine lines, the lantern rings vertically hang the lightweight spring to ensure that the lightweight spring is in a horizontal state, a dividing ruler is horizontally fixed on the base, and an audiocurrent source is connected with the horn through a wire. The horizontal longitudinal wave standing wave experimental measuring device and method solve the problem of inaccurate measurement of the wave lengths of standing waves caused by unstable wave nodes of an existing standing wave experiment instrument, and the horizontal longitudinal wave standing wave experimental measuring device is low in cost and suitable for demonstration teaching and experimental measurement teaching.

Description

technical field [0001] The invention belongs to the technical field of teaching instruments, and in particular relates to a horizontal longitudinal wave standing wave experimental measuring device and method. Background technique [0002] When two coherent waves with the same amplitude and frequency propagate towards each other on the same straight line, the superimposed wave is called a standing wave. One-dimensional standing wave is a special case of wave interference. On the string appear many stationary points, called nodes of the standing wave. The distance between two adjacent nodes is half a wavelength. Observing the standing wave formed on the string and studying the relationship between the wavelength of the standing wave and the tension, frequency and string density when the string vibrates is an important content in today's physics courses, and it is also an indispensable part of the experimental course for students to understand the teaching content. Indispensa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/14G01H17/00
CPCG01H17/00G09B23/14
Inventor 杨程煜朱志扬张开骁
Owner HOHAI UNIV
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