A Brief History of the microphone was born a hundred years who have the luxury of daily necessities (Figure)

 Beijing January 13, according to the U.S. Is improved step by step how to become like this today? Hsu you do not know the microphone was born in the early days of sound recording and amplification was also seen as a new piece, not a daily necessity.

1. carbon electrode microphone


carbon electrode microphone

the form of devices like a snare drum is a carbon electrode microphone, Emil Behring is satisfied by the patent in 1877. It is the first research and so far one of the most useful microphones. In 1876, Beilin Na invented the carbon electrode microphone. Although there were other microphone technology, but including the Alexander Graham Bell invented the liquid Ji Maike other design than the design of more practical Beilin Na. His design also touched Bell, Bell finally with 5 million (equivalent to the current 110 million dollars) to buy it from the patent Beilin Na, the carbon electrodes used in the microphone on his telephone prototype.

Beilin Na microphone called him One of the contacts attached to the diaphragm, the diaphragm will vibrate under the action of the sound waves. Another output device is connected. Unfortunately, Beilin Na not in relation to the patent court victory in World War II, according to the U.S. Supreme Court ruling in 1892, carbon electrode microphone eventually wear the crown of the inventor Thomas Edison in the head. In fact, both Beilin Na or are not eligible for exclusive invention of Edison's honor. Before they start the experiment, this idea has existed for many years, but did not like their designs so perfect.

2. Emil Behring satisfied


Emil Behring
satisfied

Emil Behring
satisfied sitting on his invention of the carbon microphone in front of the electrode. Means of determining the structure of carbon electrodes as the built-in microphone, the amplifier can play a role as not only the sound into a voltage signal, while signals in the microphone before the increase voltage. The original transmitter requires high input signal to work. At that time, tube, or something new, not widely used, the transistor is a long time before being invented. Therefore, the use of power strong carbon electrode become a necessity.

3. was a luxury


at luxury

left is an early carbon electrode microphone, Emil Behring is satisfied by the development, the right is the microphone used in conjunction with the microphone. At that time, they are a luxury.