LOUDSPEAKER
AIM- To Study the loudspeaker.
INTRODUCTION-
Loudspeaker is a device which converts electrical energy, sound energy, Converts electrical energy, sound energy, Audio frequency current from an amplifier are connected in to sound wave of correspondence frequency and amplitude by loudspeaker a good loudspeaker should be able to reproduce all sound equipment with respective of their amplitude and frequency.
Dynamic ( moving coil) speaker The principle of operation of dynamic or moving coil loudspeaker is similar to that of an electric motor audio current passing through the voice coil due to this force of attraction and deplection a transfer to the core or display attach to the voice coils the alternating motor at the one produces sound wave in the air with produced the section of sound frequency shows the construction details and main parts of a dynamic loudspeaker if consist of the following parts.
INTRODUCTION-
Loudspeaker is a device which converts electrical energy, sound energy, Converts electrical energy, sound energy, Audio frequency current from an amplifier are connected in to sound wave of correspondence frequency and amplitude by loudspeaker a good loudspeaker should be able to reproduce all sound equipment with respective of their amplitude and frequency.
Dynamic ( moving coil) speaker The principle of operation of dynamic or moving coil loudspeaker is similar to that of an electric motor audio current passing through the voice coil due to this force of attraction and deplection a transfer to the core or display attach to the voice coils the alternating motor at the one produces sound wave in the air with produced the section of sound frequency shows the construction details and main parts of a dynamic loudspeaker if consist of the following parts.
- Magnet- A strong magnetic field in necessary from factory operation of dynamic loudspeaker these magnetic field can be obtained by passing the direct current through a field coil sound and soft iron pole such a speaker using an electro-magnet for producing the magnetic field is known as electro dynamic speaker. However, very strong permanent magnet can be made in a lie of alluminium nickel and cobalt called alnico and other use in become unnecessary in that types used in almost of radio and T.V sets a very strong magnetic field exist in the stationery magnetic field.
- Voice Coil- This consist of a few turns of wire wound on a paper core is suspendent between the magnetic core an helledin position by needs of special device called finaled.
- Spider- It is flexible meron which fixed in the coil from on the one side and the speaker is to keep from other side. The purpose of the spider is to keep the voice coil property centered in the gap between the pole piece without allowing it to tare.
- Core- The core or diatchrgm of loudspeaker made of paper preferred by special converse at the requires size provided near the coil convenient to move easily and over distance the other range of the core.