2.6.1 Capacitor microphone Capacitor microphone is an electromechanical system with two degrees of freedom: . qi=g;...
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2.6.1 Capacitor microphone Capacitor microphone is an electromechanical system with two degrees of freedom: . qi=g; the electrical charge is the generalized coordinate for the electrical tank (LC series), and ● q2=x; the displacement from equilibrium point xo is the generalized coordinate for the mechanical tank (M, K: moving plate-spring) Fig. 2.18 capacitor microphone system A Xo-X Fixel Plate Moving Plate S(0) B The capacitor C' is given by C = where & is the dielectric constant of the air (F/m); A is the area of the plate, xo is the separation between the armatures when the microphone is not receiving any human voice; and x - x is the plate separation after a displacement x. Find the dynamic equation of the system by using: 1- Newton's and Kirchhoff 's Laws 2- Lagrange's Laws 3- Deduce the state equation of the system Indication: mx+ Bx + Kx- 92 = f 2 & A 1 La + Rq+(x₁ - x)q=v & A 2.6.1 Capacitor microphone Capacitor microphone is an electromechanical system with two degrees of freedom: . qi=g; the electrical charge is the generalized coordinate for the electrical tank (LC series), and ● q2=x; the displacement from equilibrium point xo is the generalized coordinate for the mechanical tank (M, K: moving plate-spring) Fig. 2.18 capacitor microphone system A Xo-X Fixel Plate Moving Plate S(0) B The capacitor C' is given by C = where & is the dielectric constant of the air (F/m); A is the area of the plate, xo is the separation between the armatures when the microphone is not receiving any human voice; and x - x is the plate separation after a displacement x. Find the dynamic equation of the system by using: 1- Newton's and Kirchhoff 's Laws 2- Lagrange's Laws 3- Deduce the state equation of the system Indication: mx+ Bx + Kx- 92 = f 2 & A 1 La + Rq+(x₁ - x)q=v & A
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Newtons and Kirchhoff s Laws The capacitors voltage v is given by v qc the force F that the coil exerts on the armature is equal to the rate of change of momentum of the armature The voltage equation ... View the full answer
Related Book For
Probability and Statistics
ISBN: 978-0321500465
4th edition
Authors: Morris H. DeGroot, Mark J. Schervish
Posted Date:
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