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电话机通过手柄中的声电换能器,把人的语言信号转换成电信号,经内部放大电路放大后送往对方话机,完成送话过程;对方话机接收到来话信号后,经放大后送往手机中的电声换能器,把电信号转换成声信号,完成受话过程。完成送话过程的声电换能器件是送话器;完成受话过程的电声换能器件是受话器。而送/受话器是一种互逆过程的器件,可以互换,统称为电声器件。本文着重向读者介绍送/受话器的种类、结构、原理和性能特点。
Telephone through the handle in the acoustic transducer, the human voice signal into electrical signals, amplified by the internal amplification circuit and sent to the other phone, to complete the sending process; the other phone to receive the incoming signal, the amplified send The electro-acoustic transducer in the cell phone converts the electric signal into an acoustic signal and completes the receiving process. Acoustic and electrical transducers that complete the teleportation process are microphones; the electroacoustic transducing device that completes the teletype process is the receiver. And send / receive device is a reciprocal process device, interchangeable, collectively referred to as electroacoustic devices. This article focuses on introducing the reader to the type, structure, principle, and performance characteristics of the transmitter / receiver.