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Yixi Intelligent Technology (Hangzhou) Co., Ltd
String vibration experiment
NegotiableUpdate on 02/04
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Overview
The YGP-6219 string vibration experimental device establishes a standing wave mode in a stretched string by driving an oscillator with a sine wave generator. A weight is suspended on the other end of the string through a pulley, and the characteristics of string vibration are studied by changing the driving frequency, string length, line density, and tension in the oscillator.
Product Details
Experimental Overview
YGP-6219 typeString vibration experimentThe device establishes a standing wave mode in a stretched string by driving an oscillator with a sine wave generator. A weight is suspended on the other end of the string through a pulley, and the characteristics of string vibration are studied by changing the driving frequency, string length, line density, and tension in the oscillator.
Experimental Content
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Observe the standing wave phenomenon formed on the string with fixed ends, and understand the conditions for the string to reach resonance and form standing waves.
Measure the propagation velocity of transverse waves on a string.
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Determine the relationship between the resonance frequency of a string subjected to forced vibration and the standing wave wavelength, tension, and string density through experimental methods.
Product Features
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The experimental setup design is visually intuitive, making it easy for students to understand the principle of standing waves.
Using an oscillator to drive a thin rope allows for a very intuitive observation of the antinodes and knots.
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The linear density, length, and tension of string vibration are variable.
experimental data
Resonance Frequency Measurement Data Sheet (L=1.200m; White Nylon Wire μ=0.543 g/m)
weightqualitym=50g |
weightqualitym=100g |
|||||
n |
freason （Hz） |
fmeasure （Hz） |
Ef （%） |
freason （Hz） |
fmeasure （Hz） |
Ef （%） |
1 |
13.17 |
13.24 |
0.46% |
18.63 |
18.84 |
1.11% |
2 |
26.35 |
26.82 |
1.78% |
37.27 |
37.86 |
1.60% |
3 |
39.52 |
39.38 |
-0.37% |
55.90 |
56.76 |
1.54% |
4 |
52.70 |
52.66 |
-0.08% |
74.53 |
75.82 |
1.73% |
Resonance Frequency Measurement Data Sheet (L=1.200m; Yellow Cotton Thread μ=0.176g/m)
weightqualitym=50g |
weightqualitym=100g |
|||||
n |
freason（Hz） |
fmeasure （Hz） |
Ef （%） |
freason （Hz） |
fmeasure （Hz） |
Ef （%） |
1 |
22.12 |
22.32 |
0.90 |
31.28 |
31.38 |
0.32 |
2 |
44.24 |
44.30 |
0.14 |
62.56 |
62.60 |
0.06 |
3 |
66.36 |
66.44 |
0.12 |
93.84 |
92.4 |
-1.53 |
4 |
88.48 |
88.56 |
0.09 |
/ |
/ |
/ |
Wave velocity measurement data table (L=1.200m, white nylon wire μ=0.543g/m, hook code mass m=100g)
|
antinodequantity n |
wavelength λ（m） |
The vibration frequency of a string f（Hz） |
V=fλ （m/s） |
V= √(f/M) （m/s） |
Ev（%） |
1 |
2.4 |
17.72 |
42.528 |
42.48 |
-0.11 |
2 |
1.2 |
35.94 |
43.128 |
42.48 |
-1.53 |
3 |
0.8 |
53.98 |
43.184 |
42.48 |
-1.66 |
4 |
0.6 |
72.00 |
43.20 |
42.48 |
-1.69 |
5 |
0.48 |
89.34 |
42.88 |
42.48 |
-0.95 |
