The microphone inside Headphone.
We are all use headphones. In this post, we discuss what inside a simple headphone, What types of microphones used in headphones.
Basically, Electret microphone used in headphones. This type of microphone can be called a condenser microphone.
Let,s know how this type of microphone works. Like a capacitor, it also has two parallel plates. One of them is fixed or not movable and another is movable(in form of Diaphragm). There is a small gap between the two plates. An electrical potential is given to the plates. When sound is created near the microphone the vibrating air particles strikes the movable plate and it starts moving and the distance between the plates also changes. So the capacitance changes between the plates which in turn result in a variable electric current to flow. Thus the sound is converted into a proportional electrical signal. It can be called a Capacitive Transducer.
Then this electrical signal is amplified by the amplifier.
Read More:
Thank you for visiting the website. keep visiting for more updates.
Mr. Muhammad Saqib, M.Sc. (PAK), Research Fellow (PAK), a member of IEEE, is a Fulbright Alumnus and earned his Master’s Degree in Electrical and Power Engineering from University Of Engineering And Technology Taxila, PAKISTAN.
No comments:
Post a Comment