Acoustics (1D)


Acoustic Pin
Basic Elements
Ideal Network Elements
Sources
Acoustic Line Elements
Tools
Components

Definition of flow and potential

The flow quantity is defined by the volumetric flow rate given in .

The potential quantity is given by the pressure drop given in Pascal () by default.

In accordance to the existing libraries the connectors shall be numbered. Thus at a one-port there are pins 1 & 2. The pressure difference shall be given by

(1)

As suggested in Lenk2011 the volumetric flow rate is charted as arrow from the pin1 into the element.

Figure 1: Fig. 1: Sign definition for acoustic one-ports

Bibliography

[CSZJJ11]
C.H., Huang, S.J., Pawar, Z.-J., Hong J.H., Huang Insert Earphone Modeling and Measurement by IEC-60711 Coupler.
IEEE Trans. On Ultrasonics, Ferroelectrics And Frequency Control, 58(2):461-469, feb 20011.
[Dye01]
Dyer, Stephen. A Survey of instrumentation and measurement.
Wiley, New York, NY, 2001.
[LBWP11]
Lenk, A., Ballas, R.G., Werschützky, R. Pfeiffer, G. Electromechanical systems in microtechnology and mechatronics : electrical, mechanical and acoustic
Springer, Berlin ; Heidelberg, 2011, 978-3-642-10805-1.
[SHHH08]
Shiah, Y.C., Her, H.C., Huang, J. H. Huang, B. Parametric analysis for a miniature loudspeaker used in cellular phones.
Journal of Applied Physics, 104(10), feb 2008.