File:Acoustics filter bandstop.svg
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Original file (SVG file, nominally 576 × 432 pixels, file size: 64 KB)
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Summary
| Description |
English: Band-stop acoustic filter. |
| Date | |
| Source | Own work |
| Author | Nicoguaro |
| SVG development |  This plot was created with Matplotlib. |
| Source code | Python codeimport numpy as np
import matplotlib.pyplot as plt
plt.rcParams['mathtext.fontset'] = 'cm'
bandstop_trans = lambda S, omega, L, Sb, V: 1/(1 + (c/(2*S)/(omega*L/Sb - c**2/(omega*V)))**2)
bandstop_cutoff = lambda Sb, c, L, V: c/(2*np.pi)*np.sqrt(Sb/(L*V))
c = 343.4
a = 0.015
L = 0.06
L = L + 1.7*a
S = 0.003
V = 0.0015
Sb = np.pi * a**2
fc = bandstop_cutoff(Sb, c, L, V)
freq = np.logspace(1, 4, 201)
T = bandstop_trans(S, 2*np.pi*freq, L, Sb, V)
plt.semilogx(freq, T)
plt.text(fc + 50, 0.1, "Cut-off frequency: {:g} Hz".format(fc))
plt.grid(which="both", alpha=0.4)
plt.xlabel("Frequency (Hz)")
plt.ylabel("$T_\pi$")
plt.title("High-pass filter for $S=30$ cm², $a=1.5$ cm, $V=1500$ cm³")
plt.savefig("Acoustics filter bandstop.svg")
|
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:39, 17 August 2018 | | 576 × 432 (64 KB) | Nicoguaro | Reduce number of points. |
| 22:31, 17 August 2018 |  | 576 × 432 (64 KB) | Nicoguaro | User created page with UploadWizard |
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