File:Acoustics filter lowpass.svg
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Size of this PNG preview of this SVG file: 576 × 432 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,560 × 1,920 pixels.
Original file (SVG file, nominally 576 × 432 pixels, file size: 57 KB)
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This is a file from the Wikimedia Commons |
Summary
| Description |
English: Low 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'
low_pass_trans = lambda S1, S, k, L: 1/(1 + (0.5*(S1 - S)/S*k*L)**2)
low_pass_cutoff = lambda S1, S, c, L: c*S/(np.pi*L*(S1 - S))
c = 343.4
L = 0.2
S1 = 5.0
S = 1.0
fc = low_pass_cutoff(S1, S, c, L)
freq = np.logspace(0, 4, 101)
k = 2 * np.pi * freq/c
T = low_pass_trans(5, 1, k, L)
plt.semilogx(freq, T)
plt.text(140, 0.5, "Cut-off frequency: {:g} Hz".format(fc))
plt.grid(which="both", alpha=0.4)
plt.xlabel("Frequency (Hz)")
plt.ylabel("$T_\pi$")
plt.title("Low-pass filter for $S_1/S=5$")
plt.savefig("Acoustics filter lowpass.svg")
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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 | 22:31, 17 August 2018 | | 576 × 432 (57 KB) | Nicoguaro | User created page with UploadWizard |
File usage
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Global file usage
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