一、引言记录器是鱼群探测仪中的主要终端显示设备。特别是在垂直鱼探仪中,几乎是必不可少的。人们用它来记录目标回波、判别鱼群种类、估计目标的大小及有无捕捞价值等。并在长期的使用过程中,通过不断地改进,在技术上也有了很大发展,从干式记录到湿式记录,以及为了提高记录速度由单笔发展到多笔记录方式等等。现在出现了一个新的动向:用示波管记录器取代机械记录式的记录器。它的出现必将引起人们广泛的兴 First, the introduction of recorder is a fish terminal detector in the main display device. Especially in vertical fish finder, almost indispensable. People use it to record the target echoes, discriminate fish species, estimate the size of the target and whether the fishing value. And in the long-term use of the process, through continuous improvement, also has made great progress in technology, from dry recording to wet recording, and in order to improve the recording speed from single development to multiple recording methods and so on. Now a new trend has emerged: the use of oscilloscope recorders to replace mechanical record recorders. Its emergence is bound to arouse widespread interest in the world