传声器是将声能转换成电能的一种换能器。传声器拾音是声音放大链路中的首要环节。本文将介绍广播电视领域所用的传声器及其使用技术。 一、传声器的性能要求及分类 在广播电视领域中所用的传声器主要有动圈传声器、电容传声器和铝带传声器三种,其性能必须满足如下几个要求: (1)在工作频段内所有频率上能量转换效率相等。 (2)灵敏度高,能感受微弱的声音信号。 (3)对于来自任一方向的所有频率的声音具有同样的灵敏度。 Microphones are transducers that convert acoustic energy into electrical energy. Microphone pickup is the first link in the sound amplification chain. This article describes the microphones used in the field of broadcast television and their use of technology. First, the microphone performance requirements and classification In the field of radio and television microphones used mainly moving coil microphone, condenser microphone and aluminum microphone three, its performance must meet the following requirements: (1) in all frequency bands The energy conversion efficiency is equal. (2) high sensitivity, can feel weak sound signal. (3) The same sensitivity for sounds of all frequencies from either direction.