carbon microphone वाक्य
उदाहरण वाक्य
मोबाइल
- In 1877 and 1878, Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver until the 1980s.
- After protracted patent litigation, a federal court ruled in 1892 that Edison and not Emile Berliner was the inventor of the carbon microphone.
- Before the proliferation of vacuum tube amplifiers in the 1920s, carbon microphones were the only practical means of obtaining high-level audio signals.
- The carbon microphone is the direct prototype of today's microphones and was critical in the development of telephony, broadcasting and the recording industries.
- In 1877 Francis Blake invented a carbon microphone for use in the telephone, shortly after Thomas Edison invented a microphone that also used carbon contacts.
- These microphones evolved from the carbon microphones used in the early days of aviation and the telephone which relied on a DC bias voltage across the carbon microphone element.
- These microphones evolved from the carbon microphones used in the early days of aviation and the telephone which relied on a DC bias voltage across the carbon microphone element.
- Examples of displacement receivers include carbon microphones, strain gauges, and pressure sensors or force sensors, which, to within an appropriate scale factor, respond to distance.
- The invention of the carbon microphone, transmitters, digital signal processing chip or DSP, and the development of computer technology helped transform the hearing aid to its present form.
- Unlike other microphone types, the carbon microphone can also be used as a type of amplifier, using a small amount of sound energy to control a larger amount of electrical energy.
- One illustration of this amplifier effect was the oscillation caused by feedback, resulting in an audible squeal from the old " candlestick " telephone if its earphone was placed near the carbon microphone.
- Examples of displacement-responding sensors include the mechanical action of Roland A50 featured a pressure sensing resistor, similar in principle-of-operation to a carbon microphone, in each key.
- The principal advantage of carbon microphones over other microphone designs is that they can produce high-level audio signals from very low DC voltages, without needing any form of additional amplification or batteries.
- Carbon microphones are also widely used in safety-critical applications such as mining and chemical manufacturing, where higher line voltages cannot be used, due to the risk of sparking and consequent explosions.
- Alexander Graham Bell's primitive telephone used them interchangeably ( without any amplification ) before the carbon microphone was invented by others . talk ) 03 : 21, 22 March 2010 ( UTC)
- :: : : : : See also Carbon microphone which works on the principle of slightly varying resistance, so requiring a talk ) 07 : 10, 12 February 2010 ( UTC ) "'
- An illustration of the amplification provided by carbon microphones was the oscillation caused by feedback, that resulted in an audible squeal from the old " candlestick telephone " if its earphone was placed near the carbon microphone.
- An illustration of the amplification provided by carbon microphones was the oscillation caused by feedback, that resulted in an audible squeal from the old " candlestick telephone " if its earphone was placed near the carbon microphone.
- Alternatively, the Wente style condenser microphone used with the Western Electric licensed recording method had a brilliant midrange and was prone to overloading from sibilants in speech, but generally it gave more accurate reproduction than carbon microphones.
- Tigerstedt also predicted such future inventions as television and the mobile phone, and in 1917 he filed a patent for what he described as a " pocket-size folding telephone with a very thin carbon microphone ".
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