Tm0 3160[N/m] Membrane tension Em 2.21e11[Pa] Young's modulus of membrane num 0.4 Poisson's ratio of membrane tm 5[um] Membrane thickness Hmic 3.35[mm] Microphone height rhoms 0.0445[kg/m^2] Membrane surface density rhom rhoms/tm Membrane density Q0 3.145e-10[C] Backplate charge at Vpol pin 1[Pa] Input pressure pvent_e pin Vent pressure exposed pvent_u 0[Pa] Vent pressure unexposed fmax 20[kHz] Maximal driving frequency dvisc 0.22[mm]*sqrt(100[Hz]/fmax) Viscous boundary layer thickness at fmax L0 39.5[dB] Reference sensitivity