Blocked Impedance Results at 1kHz
Variation of the BlockedImpedance problem where the impedance and inductance of the SSF-082 loudspeaker are analyzed at 1kHz across a range of positions. Since the frequency is low (relative to 20kHz), a coarser surface mesh of 0.05mm can be used on the low carbon steel parts. Two configurations are considered: one with no shorting ring, and one with a copper shorting ring around the central pole.
Figure 1: Loudspeaker geometry depicting shorting ring location.
Example scripts in Mathematica, Matlab, and Lua are available below in the Files section. The results of the analysis are pictured below in Figures 2-6.
Figure 2: |Impedance| vs. Position. Analogous to ZL(jω) shown in Figure 10 in this Klippel paper.
Figure 3: |Inductance| vs. Position
Figure 4: Re[Inductance] vs. Position. Analogous Leff(f) shown in Figure 16 in this Klippel paper.
Figure 5: Re[I*ω*Inductance] vs. Position. Analogous to Reff(f) shown in Figure 17 in this Klippel paper.
Figure 6: B*l vs. Position
| File | Last modified | Size |
|---|---|---|
| ssf_082_vs_position_1kHz.lua | 2020-08-30 18:56 | 2Kb |
| ssf_082_vs_position_1kHz.m | 2020-08-30 18:57 | 3Kb |
| fig0.png | 2015-11-12 21:49 | 5Kb |
| ssf-082-ring1.FEM | 2015-11-12 22:01 | 9Kb |
| SSF-082_1kHz.fem | 2015-11-03 21:02 | 10Kb |
| fig5.png | 2015-11-03 20:41 | 10Kb |
| fig1.png | 2015-11-12 21:52 | 11Kb |
| fig6.png | 2015-11-12 21:59 | 11Kb |
| fig2.png | 2015-11-12 21:54 | 13Kb |
| fig4.png | 2015-11-12 21:55 | 14Kb |
| ssf-082_vs_position_at_1kHz.nb | 2020-08-30 18:55 | 51Kb |
| ssf-082_vs_position_at_1kHz-ring1.nb | 2020-08-30 18:55 | 78Kb |
| ssf-082_vs_position_at_1kHz.pdf | 2020-08-30 18:58 | 103Kb |
